From 959f7df23aaf172105d41c7d5d7993ad7da66395 Mon Sep 17 00:00:00 2001 From: Ralf Corsepius Date: Fri, 28 Oct 2005 07:22:42 +0000 Subject: Import of zlib-1.2.2.2.tar.gz --- cpukit/zlib/contrib/README.contrib | 67 + cpukit/zlib/contrib/ada/buffer_demo.adb | 106 ++ cpukit/zlib/contrib/ada/mtest.adb | 156 ++ cpukit/zlib/contrib/ada/read.adb | 156 ++ cpukit/zlib/contrib/ada/readme.txt | 65 + cpukit/zlib/contrib/ada/test.adb | 463 ++++++ cpukit/zlib/contrib/ada/zlib-streams.adb | 225 +++ cpukit/zlib/contrib/ada/zlib-streams.ads | 114 ++ cpukit/zlib/contrib/ada/zlib-thin.adb | 141 ++ cpukit/zlib/contrib/ada/zlib-thin.ads | 450 ++++++ cpukit/zlib/contrib/ada/zlib.adb | 701 +++++++++ cpukit/zlib/contrib/ada/zlib.ads | 328 ++++ cpukit/zlib/contrib/ada/zlib.gpr | 20 + cpukit/zlib/contrib/asm586/README.586 | 43 + cpukit/zlib/contrib/asm586/match.S | 354 +++++ cpukit/zlib/contrib/asm686/README.686 | 34 + cpukit/zlib/contrib/asm686/match.S | 327 ++++ cpukit/zlib/contrib/blast/Makefile | 8 + cpukit/zlib/contrib/blast/README | 4 + cpukit/zlib/contrib/blast/blast.c | 444 ++++++ cpukit/zlib/contrib/blast/blast.h | 71 + cpukit/zlib/contrib/blast/test.pk | Bin 0 -> 8 bytes cpukit/zlib/contrib/blast/test.txt | 1 + cpukit/zlib/contrib/delphi/ZLib.pas | 557 +++++++ cpukit/zlib/contrib/delphi/ZLibConst.pas | 11 + cpukit/zlib/contrib/delphi/readme.txt | 76 + cpukit/zlib/contrib/delphi/zlibd32.mak | 93 ++ cpukit/zlib/contrib/dotzlib/DotZLib.build | 33 + cpukit/zlib/contrib/dotzlib/DotZLib.chm | Bin 0 -> 72728 bytes cpukit/zlib/contrib/dotzlib/DotZLib.sln | 21 + .../zlib/contrib/dotzlib/DotZLib/AssemblyInfo.cs | 58 + .../zlib/contrib/dotzlib/DotZLib/ChecksumImpl.cs | 202 +++ .../zlib/contrib/dotzlib/DotZLib/CircularBuffer.cs | 83 + cpukit/zlib/contrib/dotzlib/DotZLib/CodecBase.cs | 198 +++ cpukit/zlib/contrib/dotzlib/DotZLib/Deflater.cs | 106 ++ cpukit/zlib/contrib/dotzlib/DotZLib/DotZLib.cs | 288 ++++ cpukit/zlib/contrib/dotzlib/DotZLib/DotZLib.csproj | 141 ++ cpukit/zlib/contrib/dotzlib/DotZLib/GZipStream.cs | 301 ++++ cpukit/zlib/contrib/dotzlib/DotZLib/Inflater.cs | 105 ++ cpukit/zlib/contrib/dotzlib/DotZLib/UnitTests.cs | 274 ++++ cpukit/zlib/contrib/dotzlib/LICENSE_1_0.txt | 23 + cpukit/zlib/contrib/dotzlib/readme.txt | 58 + cpukit/zlib/contrib/infback9/README | 1 + cpukit/zlib/contrib/infback9/infback9.c | 608 ++++++++ cpukit/zlib/contrib/infback9/infback9.h | 29 + cpukit/zlib/contrib/infback9/inffix9.h | 107 ++ cpukit/zlib/contrib/infback9/inflate9.h | 47 + cpukit/zlib/contrib/infback9/inftree9.c | 323 ++++ cpukit/zlib/contrib/infback9/inftree9.h | 55 + cpukit/zlib/contrib/inflate86/inffas86.c | 1157 ++++++++++++++ cpukit/zlib/contrib/inflate86/inffast.S | 1368 +++++++++++++++++ cpukit/zlib/contrib/iostream/test.cpp | 24 + cpukit/zlib/contrib/iostream/zfstream.cpp | 329 ++++ cpukit/zlib/contrib/iostream/zfstream.h | 128 ++ cpukit/zlib/contrib/iostream2/zstream.h | 307 ++++ cpukit/zlib/contrib/iostream2/zstream_test.cpp | 25 + cpukit/zlib/contrib/iostream3/README | 35 + cpukit/zlib/contrib/iostream3/TODO | 17 + cpukit/zlib/contrib/iostream3/test.cc | 50 + cpukit/zlib/contrib/iostream3/zfstream.cc | 479 ++++++ cpukit/zlib/contrib/iostream3/zfstream.h | 466 ++++++ cpukit/zlib/contrib/masm686/match.asm | 408 +++++ cpukit/zlib/contrib/masmx86/gvmat32.asm | 909 +++++++++++ cpukit/zlib/contrib/masmx86/gvmat32c.c | 206 +++ cpukit/zlib/contrib/masmx86/inffas32.asm | 1036 +++++++++++++ cpukit/zlib/contrib/masmx86/mkasm.bat | 3 + cpukit/zlib/contrib/masmx86/readme.txt | 21 + cpukit/zlib/contrib/minizip/ChangeLogUnzip | 63 + cpukit/zlib/contrib/minizip/Makefile | 25 + cpukit/zlib/contrib/minizip/crypt.h | 132 ++ cpukit/zlib/contrib/minizip/ioapi.c | 177 +++ cpukit/zlib/contrib/minizip/ioapi.h | 75 + cpukit/zlib/contrib/minizip/iowin32.c | 270 ++++ cpukit/zlib/contrib/minizip/iowin32.h | 21 + cpukit/zlib/contrib/minizip/miniunz.c | 585 +++++++ cpukit/zlib/contrib/minizip/minizip.c | 420 ++++++ 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100644 cpukit/zlib/contrib/untgz/Makefile create mode 100644 cpukit/zlib/contrib/untgz/Makefile.msc create mode 100644 cpukit/zlib/contrib/untgz/untgz.c create mode 100644 cpukit/zlib/contrib/vstudio/readme.txt create mode 100644 cpukit/zlib/contrib/vstudio/vc7/miniunz.vcproj create mode 100644 cpukit/zlib/contrib/vstudio/vc7/minizip.vcproj create mode 100644 cpukit/zlib/contrib/vstudio/vc7/zlib.rc create mode 100644 cpukit/zlib/contrib/vstudio/vc7/zlibstat.vcproj create mode 100644 cpukit/zlib/contrib/vstudio/vc7/zlibvc.def create mode 100644 cpukit/zlib/contrib/vstudio/vc7/zlibvc.sln create mode 100644 cpukit/zlib/contrib/vstudio/vc7/zlibvc.vcproj (limited to 'cpukit/zlib/contrib') diff --git a/cpukit/zlib/contrib/README.contrib b/cpukit/zlib/contrib/README.contrib new file mode 100644 index 0000000000..732d48c957 --- /dev/null +++ b/cpukit/zlib/contrib/README.contrib @@ -0,0 +1,67 @@ +All files under this contrib directory are UNSUPPORTED. There were +provided by users of zlib and were not tested by the authors of zlib. +Use at your own risk. Please contact the authors of the contributions +for help about these, not the zlib authors. Thanks. + + +ada/ by Dmitriy Anisimkov + Support for Ada + See http://zlib-ada.sourceforge.net/ + +asm586/ +asm686/ by Brian Raiter + asm code for Pentium and PPro/PII, using the AT&T (GNU as) syntax + See http://www.muppetlabs.com/~breadbox/software/assembly.html + +blast/ by Mark Adler + Decompressor for output of PKWare Data Compression Library (DCL) + +delphi/ by Cosmin Truta + Support for Delphi and C++ Builder + +dotzlib/ by Henrik Ravn + Support for Microsoft .Net and Visual C++ .Net + +infback9/ by Mark Adler + Unsupported diffs to infback to decode the deflate64 format + +inflate86/ by Chris Anderson + Tuned x86 gcc asm code to replace inflate_fast() + +iostream/ by Kevin Ruland + A C++ I/O streams interface to the zlib gz* functions + +iostream2/ by Tyge Løvset + Another C++ I/O streams interface + +iostream3/ by Ludwig Schwardt + and Kevin Ruland + Yet another C++ I/O streams interface + +masm686/ by Dan Higdon + and Chuck Walbourn + asm code for Pentium Pro/PII, using the MASM syntax + +masmx86/ by Gilles Vollant + x86 asm code to replace longest_match() and inflate_fast(), + for Visual C++ and MASM + +minizip/ by Gilles Vollant + Mini zip and unzip based on zlib + See http://www.winimage.com/zLibDll/unzip.html + +pascal/ by Bob Dellaca et al. + Support for Pascal + +puff/ by Mark Adler + Small, low memory usage inflate. Also serves to provide an + unambiguous description of the deflate format. + +testzlib/ by Gilles Vollant + Example of the use of zlib + +untgz/ by Pedro A. Aranda Gutierrez + A very simple tar.gz file extractor using zlib + +vstudio/ by Gilles Vollant + Building a minizip-enhanced zlib with Microsoft Visual Studio diff --git a/cpukit/zlib/contrib/ada/buffer_demo.adb b/cpukit/zlib/contrib/ada/buffer_demo.adb new file mode 100644 index 0000000000..cd63fa48f8 --- /dev/null +++ b/cpukit/zlib/contrib/ada/buffer_demo.adb @@ -0,0 +1,106 @@ +---------------------------------------------------------------- +-- ZLib for Ada thick binding. -- +-- -- +-- Copyright (C) 2002-2004 Dmitriy Anisimkov -- +-- -- +-- Open source license information is in the zlib.ads file. -- +---------------------------------------------------------------- +-- +-- $Id$ + +-- This demo program provided by Dr Steve Sangwine +-- +-- Demonstration of a problem with Zlib-Ada (already fixed) when a buffer +-- of exactly the correct size is used for decompressed data, and the last +-- few bytes passed in to Zlib are checksum bytes. + +-- This program compresses a string of text, and then decompresses the +-- compressed text into a buffer of the same size as the original text. + +with Ada.Streams; use Ada.Streams; +with Ada.Text_IO; + +with ZLib; use ZLib; + +procedure Buffer_Demo is + EOL : Character renames ASCII.LF; + Text : constant String + := "Four score and seven years ago our fathers brought forth," & EOL & + "upon this continent, a new nation, conceived in liberty," & EOL & + "and dedicated to the proposition that `all men are created equal'."; + + Source : Stream_Element_Array (1 .. Text'Length); + for Source'Address use Text'Address; + +begin + Ada.Text_IO.Put (Text); + Ada.Text_IO.New_Line; + Ada.Text_IO.Put_Line + ("Uncompressed size : " & Positive'Image (Text'Length) & " bytes"); + + declare + Compressed_Data : Stream_Element_Array (1 .. Text'Length); + L : Stream_Element_Offset; + begin + Compress : declare + Compressor : Filter_Type; + I : Stream_Element_Offset; + begin + Deflate_Init (Compressor); + + -- Compress the whole of T at once. + + Translate (Compressor, Source, I, Compressed_Data, L, Finish); + pragma Assert (I = Source'Last); + + Close (Compressor); + + Ada.Text_IO.Put_Line + ("Compressed size : " + & Stream_Element_Offset'Image (L) & " bytes"); + end Compress; + + -- Now we decompress the data, passing short blocks of data to Zlib + -- (because this demonstrates the problem - the last block passed will + -- contain checksum information and there will be no output, only a + -- check inside Zlib that the checksum is correct). + + Decompress : declare + Decompressor : Filter_Type; + + Uncompressed_Data : Stream_Element_Array (1 .. Text'Length); + + Block_Size : constant := 4; + -- This makes sure that the last block contains + -- only Adler checksum data. + + P : Stream_Element_Offset := Compressed_Data'First - 1; + O : Stream_Element_Offset; + begin + Inflate_Init (Decompressor); + + loop + Translate + (Decompressor, + Compressed_Data + (P + 1 .. Stream_Element_Offset'Min (P + Block_Size, L)), + P, + Uncompressed_Data + (Total_Out (Decompressor) + 1 .. Uncompressed_Data'Last), + O, + No_Flush); + + Ada.Text_IO.Put_Line + ("Total in : " & Count'Image (Total_In (Decompressor)) & + ", out : " & Count'Image (Total_Out (Decompressor))); + + exit when P = L; + end loop; + + Ada.Text_IO.New_Line; + Ada.Text_IO.Put_Line + ("Decompressed text matches original text : " + & Boolean'Image (Uncompressed_Data = Source)); + end Decompress; + end; +end Buffer_Demo; diff --git a/cpukit/zlib/contrib/ada/mtest.adb b/cpukit/zlib/contrib/ada/mtest.adb new file mode 100644 index 0000000000..5f17228cd2 --- /dev/null +++ b/cpukit/zlib/contrib/ada/mtest.adb @@ -0,0 +1,156 @@ +---------------------------------------------------------------- +-- ZLib for Ada thick binding. -- +-- -- +-- Copyright (C) 2002-2003 Dmitriy Anisimkov -- +-- -- +-- Open source license information is in the zlib.ads file. -- +---------------------------------------------------------------- +-- Continuous test for ZLib multithreading. If the test would fail +-- we should provide thread safe allocation routines for the Z_Stream. +-- +-- $Id$ + +with ZLib; +with Ada.Streams; +with Ada.Numerics.Discrete_Random; +with Ada.Text_IO; +with Ada.Exceptions; +with Ada.Task_Identification; + +procedure MTest is + use Ada.Streams; + use ZLib; + + Stop : Boolean := False; + + pragma Atomic (Stop); + + subtype Visible_Symbols is Stream_Element range 16#20# .. 16#7E#; + + package Random_Elements is + new Ada.Numerics.Discrete_Random (Visible_Symbols); + + task type Test_Task; + + task body Test_Task is + Buffer : Stream_Element_Array (1 .. 100_000); + Gen : Random_Elements.Generator; + + Buffer_First : Stream_Element_Offset; + Compare_First : Stream_Element_Offset; + + Deflate : Filter_Type; + Inflate : Filter_Type; + + procedure Further (Item : in Stream_Element_Array); + + procedure Read_Buffer + (Item : out Ada.Streams.Stream_Element_Array; + Last : out Ada.Streams.Stream_Element_Offset); + + ------------- + -- Further -- + ------------- + + procedure Further (Item : in Stream_Element_Array) is + + procedure Compare (Item : in Stream_Element_Array); + + ------------- + -- Compare -- + ------------- + + procedure Compare (Item : in Stream_Element_Array) is + Next_First : Stream_Element_Offset := Compare_First + Item'Length; + begin + if Buffer (Compare_First .. Next_First - 1) /= Item then + raise Program_Error; + end if; + + Compare_First := Next_First; + end Compare; + + procedure Compare_Write is new ZLib.Write (Write => Compare); + begin + Compare_Write (Inflate, Item, No_Flush); + end Further; + + ----------------- + -- Read_Buffer -- + ----------------- + + procedure Read_Buffer + (Item : out Ada.Streams.Stream_Element_Array; + Last : out Ada.Streams.Stream_Element_Offset) + is + Buff_Diff : Stream_Element_Offset := Buffer'Last - Buffer_First; + Next_First : Stream_Element_Offset; + begin + if Item'Length <= Buff_Diff then + Last := Item'Last; + + Next_First := Buffer_First + Item'Length; + + Item := Buffer (Buffer_First .. Next_First - 1); + + Buffer_First := Next_First; + else + Last := Item'First + Buff_Diff; + Item (Item'First .. Last) := Buffer (Buffer_First .. Buffer'Last); + Buffer_First := Buffer'Last + 1; + end if; + end Read_Buffer; + + procedure Translate is new Generic_Translate + (Data_In => Read_Buffer, + Data_Out => Further); + + begin + Random_Elements.Reset (Gen); + + Buffer := (others => 20); + + Main : loop + for J in Buffer'Range loop + Buffer (J) := Random_Elements.Random (Gen); + + Deflate_Init (Deflate); + Inflate_Init (Inflate); + + Buffer_First := Buffer'First; + Compare_First := Buffer'First; + + Translate (Deflate); + + if Compare_First /= Buffer'Last + 1 then + raise Program_Error; + end if; + + Ada.Text_IO.Put_Line + (Ada.Task_Identification.Image + (Ada.Task_Identification.Current_Task) + & Stream_Element_Offset'Image (J) + & ZLib.Count'Image (Total_Out (Deflate))); + + Close (Deflate); + Close (Inflate); + + exit Main when Stop; + end loop; + end loop Main; + exception + when E : others => + Ada.Text_IO.Put_Line (Ada.Exceptions.Exception_Information (E)); + Stop := True; + end Test_Task; + + Test : array (1 .. 4) of Test_Task; + + pragma Unreferenced (Test); + + Dummy : Character; + +begin + Ada.Text_IO.Get_Immediate (Dummy); + Stop := True; +end MTest; diff --git a/cpukit/zlib/contrib/ada/read.adb b/cpukit/zlib/contrib/ada/read.adb new file mode 100644 index 0000000000..00effd7209 --- /dev/null +++ b/cpukit/zlib/contrib/ada/read.adb @@ -0,0 +1,156 @@ +---------------------------------------------------------------- +-- ZLib for Ada thick binding. -- +-- -- +-- Copyright (C) 2002-2003 Dmitriy Anisimkov -- +-- -- +-- Open source license information is in the zlib.ads file. -- +---------------------------------------------------------------- + +-- $Id$ + +-- Test/demo program for the generic read interface. + +with Ada.Numerics.Discrete_Random; +with Ada.Streams; +with Ada.Text_IO; + +with ZLib; + +procedure Read is + + use Ada.Streams; + + ------------------------------------ + -- Test configuration parameters -- + ------------------------------------ + + File_Size : Stream_Element_Offset := 100_000; + + Continuous : constant Boolean := False; + -- If this constant is True, the test would be repeated again and again, + -- with increment File_Size for every iteration. + + Header : constant ZLib.Header_Type := ZLib.Default; + -- Do not use Header other than Default in ZLib versions 1.1.4 and older. + + Init_Random : constant := 8; + -- We are using the same random sequence, in case of we catch bug, + -- so we would be able to reproduce it. + + -- End -- + + Pack_Size : Stream_Element_Offset; + Offset : Stream_Element_Offset; + + Filter : ZLib.Filter_Type; + + subtype Visible_Symbols + is Stream_Element range 16#20# .. 16#7E#; + + package Random_Elements is new + Ada.Numerics.Discrete_Random (Visible_Symbols); + + Gen : Random_Elements.Generator; + Period : constant Stream_Element_Offset := 200; + -- Period constant variable for random generator not to be very random. + -- Bigger period, harder random. + + Read_Buffer : Stream_Element_Array (1 .. 2048); + Read_First : Stream_Element_Offset; + Read_Last : Stream_Element_Offset; + + procedure Reset; + + procedure Read + (Item : out Stream_Element_Array; + Last : out Stream_Element_Offset); + -- this procedure is for generic instantiation of + -- ZLib.Read + -- reading data from the File_In. + + procedure Read is new ZLib.Read + (Read, + Read_Buffer, + Rest_First => Read_First, + Rest_Last => Read_Last); + + ---------- + -- Read -- + ---------- + + procedure Read + (Item : out Stream_Element_Array; + Last : out Stream_Element_Offset) is + begin + Last := Stream_Element_Offset'Min + (Item'Last, + Item'First + File_Size - Offset); + + for J in Item'First .. Last loop + if J < Item'First + Period then + Item (J) := Random_Elements.Random (Gen); + else + Item (J) := Item (J - Period); + end if; + + Offset := Offset + 1; + end loop; + end Read; + + ----------- + -- Reset -- + ----------- + + procedure Reset is + begin + Random_Elements.Reset (Gen, Init_Random); + Pack_Size := 0; + Offset := 1; + Read_First := Read_Buffer'Last + 1; + Read_Last := Read_Buffer'Last; + end Reset; + +begin + Ada.Text_IO.Put_Line ("ZLib " & ZLib.Version); + + loop + for Level in ZLib.Compression_Level'Range loop + + Ada.Text_IO.Put ("Level =" + & ZLib.Compression_Level'Image (Level)); + + -- Deflate using generic instantiation. + + ZLib.Deflate_Init + (Filter, + Level, + Header => Header); + + Reset; + + Ada.Text_IO.Put + (Stream_Element_Offset'Image (File_Size) & " ->"); + + loop + declare + Buffer : Stream_Element_Array (1 .. 1024); + Last : Stream_Element_Offset; + begin + Read (Filter, Buffer, Last); + + Pack_Size := Pack_Size + Last - Buffer'First + 1; + + exit when Last < Buffer'Last; + end; + end loop; + + Ada.Text_IO.Put_Line (Stream_Element_Offset'Image (Pack_Size)); + + ZLib.Close (Filter); + end loop; + + exit when not Continuous; + + File_Size := File_Size + 1; + end loop; +end Read; diff --git a/cpukit/zlib/contrib/ada/readme.txt b/cpukit/zlib/contrib/ada/readme.txt new file mode 100644 index 0000000000..ce4d2cadf0 --- /dev/null +++ b/cpukit/zlib/contrib/ada/readme.txt @@ -0,0 +1,65 @@ + ZLib for Ada thick binding (ZLib.Ada) + Release 1.3 + +ZLib.Ada is a thick binding interface to the popular ZLib data +compression library, available at http://www.gzip.org/zlib/. +It provides Ada-style access to the ZLib C library. + + + Here are the main changes since ZLib.Ada 1.2: + +- Attension: ZLib.Read generic routine have a initialization requirement + for Read_Last parameter now. It is a bit incompartible with previous version, + but extends functionality, we could use new parameters Allow_Read_Some and + Flush now. + +- Added Is_Open routines to ZLib and ZLib.Streams packages. + +- Add pragma Assert to check Stream_Element is 8 bit. + +- Fix extraction to buffer with exact known decompressed size. Error reported by + Steve Sangwine. + +- Fix definition of ULong (changed to unsigned_long), fix regression on 64 bits + computers. Patch provided by Pascal Obry. + +- Add Status_Error exception definition. + +- Add pragma Assertion that Ada.Streams.Stream_Element size is 8 bit. + + + How to build ZLib.Ada under GNAT + +You should have the ZLib library already build on your computer, before +building ZLib.Ada. Make the directory of ZLib.Ada sources current and +issue the command: + + gnatmake test -largs -L -lz + +Or use the GNAT project file build for GNAT 3.15 or later: + + gnatmake -Pzlib.gpr -L + + + How to build ZLib.Ada under Aonix ObjectAda for Win32 7.2.2 + +1. Make a project with all *.ads and *.adb files from the distribution. +2. Build the libz.a library from the ZLib C sources. +3. Rename libz.a to z.lib. +4. Add the library z.lib to the project. +5. Add the libc.lib library from the ObjectAda distribution to the project. +6. Build the executable using test.adb as a main procedure. + + + How to use ZLib.Ada + +The source files test.adb and read.adb are small demo programs that show +the main functionality of ZLib.Ada. + +The routines from the package specifications are commented. + + +Homepage: http://zlib-ada.sourceforge.net/ +Author: Dmitriy Anisimkov + +Contributors: Pascal Obry , Steve Sangwine diff --git a/cpukit/zlib/contrib/ada/test.adb b/cpukit/zlib/contrib/ada/test.adb new file mode 100644 index 0000000000..8444647144 --- /dev/null +++ b/cpukit/zlib/contrib/ada/test.adb @@ -0,0 +1,463 @@ +---------------------------------------------------------------- +-- ZLib for Ada thick binding. -- +-- -- +-- Copyright (C) 2002-2003 Dmitriy Anisimkov -- +-- -- +-- Open source license information is in the zlib.ads file. -- +---------------------------------------------------------------- + +-- $Id$ + +-- The program has a few aims. +-- 1. Test ZLib.Ada95 thick binding functionality. +-- 2. Show the example of use main functionality of the ZLib.Ada95 binding. +-- 3. Build this program automatically compile all ZLib.Ada95 packages under +-- GNAT Ada95 compiler. + +with ZLib.Streams; +with Ada.Streams.Stream_IO; +with Ada.Numerics.Discrete_Random; + +with Ada.Text_IO; + +with Ada.Calendar; + +procedure Test is + + use Ada.Streams; + use Stream_IO; + + ------------------------------------ + -- Test configuration parameters -- + ------------------------------------ + + File_Size : Count := 100_000; + Continuous : constant Boolean := False; + + Header : constant ZLib.Header_Type := ZLib.Default; + -- ZLib.None; + -- ZLib.Auto; + -- ZLib.GZip; + -- Do not use Header other then Default in ZLib versions 1.1.4 + -- and older. + + Strategy : constant ZLib.Strategy_Type := ZLib.Default_Strategy; + Init_Random : constant := 10; + + -- End -- + + In_File_Name : constant String := "testzlib.in"; + -- Name of the input file + + Z_File_Name : constant String := "testzlib.zlb"; + -- Name of the compressed file. + + Out_File_Name : constant String := "testzlib.out"; + -- Name of the decompressed file. + + File_In : File_Type; + File_Out : File_Type; + File_Back : File_Type; + File_Z : ZLib.Streams.Stream_Type; + + Filter : ZLib.Filter_Type; + + Time_Stamp : Ada.Calendar.Time; + + procedure Generate_File; + -- Generate file of spetsified size with some random data. + -- The random data is repeatable, for the good compression. + + procedure Compare_Streams + (Left, Right : in out Root_Stream_Type'Class); + -- The procedure compearing data in 2 streams. + -- It is for compare data before and after compression/decompression. + + procedure Compare_Files (Left, Right : String); + -- Compare files. Based on the Compare_Streams. + + procedure Copy_Streams + (Source, Target : in out Root_Stream_Type'Class; + Buffer_Size : in Stream_Element_Offset := 1024); + -- Copying data from one stream to another. It is for test stream + -- interface of the library. + + procedure Data_In + (Item : out Stream_Element_Array; + Last : out Stream_Element_Offset); + -- this procedure is for generic instantiation of + -- ZLib.Generic_Translate. + -- reading data from the File_In. + + procedure Data_Out (Item : in Stream_Element_Array); + -- this procedure is for generic instantiation of + -- ZLib.Generic_Translate. + -- writing data to the File_Out. + + procedure Stamp; + -- Store the timestamp to the local variable. + + procedure Print_Statistic (Msg : String; Data_Size : ZLib.Count); + -- Print the time statistic with the message. + + procedure Translate is new ZLib.Generic_Translate + (Data_In => Data_In, + Data_Out => Data_Out); + -- This procedure is moving data from File_In to File_Out + -- with compression or decompression, depend on initialization of + -- Filter parameter. + + ------------------- + -- Compare_Files -- + ------------------- + + procedure Compare_Files (Left, Right : String) is + Left_File, Right_File : File_Type; + begin + Open (Left_File, In_File, Left); + Open (Right_File, In_File, Right); + Compare_Streams (Stream (Left_File).all, Stream (Right_File).all); + Close (Left_File); + Close (Right_File); + end Compare_Files; + + --------------------- + -- Compare_Streams -- + --------------------- + + procedure Compare_Streams + (Left, Right : in out Ada.Streams.Root_Stream_Type'Class) + is + Left_Buffer, Right_Buffer : Stream_Element_Array (0 .. 16#FFF#); + Left_Last, Right_Last : Stream_Element_Offset; + begin + loop + Read (Left, Left_Buffer, Left_Last); + Read (Right, Right_Buffer, Right_Last); + + if Left_Last /= Right_Last then + Ada.Text_IO.Put_Line ("Compare error :" + & Stream_Element_Offset'Image (Left_Last) + & " /= " + & Stream_Element_Offset'Image (Right_Last)); + + raise Constraint_Error; + + elsif Left_Buffer (0 .. Left_Last) + /= Right_Buffer (0 .. Right_Last) + then + Ada.Text_IO.Put_Line ("ERROR: IN and OUT files is not equal."); + raise Constraint_Error; + + end if; + + exit when Left_Last < Left_Buffer'Last; + end loop; + end Compare_Streams; + + ------------------ + -- Copy_Streams -- + ------------------ + + procedure Copy_Streams + (Source, Target : in out Ada.Streams.Root_Stream_Type'Class; + Buffer_Size : in Stream_Element_Offset := 1024) + is + Buffer : Stream_Element_Array (1 .. Buffer_Size); + Last : Stream_Element_Offset; + begin + loop + Read (Source, Buffer, Last); + Write (Target, Buffer (1 .. Last)); + + exit when Last < Buffer'Last; + end loop; + end Copy_Streams; + + ------------- + -- Data_In -- + ------------- + + procedure Data_In + (Item : out Stream_Element_Array; + Last : out Stream_Element_Offset) is + begin + Read (File_In, Item, Last); + end Data_In; + + -------------- + -- Data_Out -- + -------------- + + procedure Data_Out (Item : in Stream_Element_Array) is + begin + Write (File_Out, Item); + end Data_Out; + + ------------------- + -- Generate_File -- + ------------------- + + procedure Generate_File is + subtype Visible_Symbols is Stream_Element range 16#20# .. 16#7E#; + + package Random_Elements is + new Ada.Numerics.Discrete_Random (Visible_Symbols); + + Gen : Random_Elements.Generator; + Buffer : Stream_Element_Array := (1 .. 77 => 16#20#) & 10; + + Buffer_Count : constant Count := File_Size / Buffer'Length; + -- Number of same buffers in the packet. + + Density : constant Count := 30; -- from 0 to Buffer'Length - 2; + + procedure Fill_Buffer (J, D : in Count); + -- Change the part of the buffer. + + ----------------- + -- Fill_Buffer -- + ----------------- + + procedure Fill_Buffer (J, D : in Count) is + begin + for K in 0 .. D loop + Buffer + (Stream_Element_Offset ((J + K) mod (Buffer'Length - 1) + 1)) + := Random_Elements.Random (Gen); + + end loop; + end Fill_Buffer; + + begin + Random_Elements.Reset (Gen, Init_Random); + + Create (File_In, Out_File, In_File_Name); + + Fill_Buffer (1, Buffer'Length - 2); + + for J in 1 .. Buffer_Count loop + Write (File_In, Buffer); + + Fill_Buffer (J, Density); + end loop; + + -- fill remain size. + + Write + (File_In, + Buffer + (1 .. Stream_Element_Offset + (File_Size - Buffer'Length * Buffer_Count))); + + Flush (File_In); + Close (File_In); + end Generate_File; + + --------------------- + -- Print_Statistic -- + --------------------- + + procedure Print_Statistic (Msg : String; Data_Size : ZLib.Count) is + use Ada.Calendar; + use Ada.Text_IO; + + package Count_IO is new Integer_IO (ZLib.Count); + + Curr_Dur : Duration := Clock - Time_Stamp; + begin + Put (Msg); + + Set_Col (20); + Ada.Text_IO.Put ("size ="); + + Count_IO.Put + (Data_Size, + Width => Stream_IO.Count'Image (File_Size)'Length); + + Put_Line (" duration =" & Duration'Image (Curr_Dur)); + end Print_Statistic; + + ----------- + -- Stamp -- + ----------- + + procedure Stamp is + begin + Time_Stamp := Ada.Calendar.Clock; + end Stamp; + +begin + Ada.Text_IO.Put_Line ("ZLib " & ZLib.Version); + + loop + Generate_File; + + for Level in ZLib.Compression_Level'Range loop + + Ada.Text_IO.Put_Line ("Level =" + & ZLib.Compression_Level'Image (Level)); + + -- Test generic interface. + Open (File_In, In_File, In_File_Name); + Create (File_Out, Out_File, Z_File_Name); + + Stamp; + + -- Deflate using generic instantiation. + + ZLib.Deflate_Init + (Filter => Filter, + Level => Level, + Strategy => Strategy, + Header => Header); + + Translate (Filter); + Print_Statistic ("Generic compress", ZLib.Total_Out (Filter)); + ZLib.Close (Filter); + + Close (File_In); + Close (File_Out); + + Open (File_In, In_File, Z_File_Name); + Create (File_Out, Out_File, Out_File_Name); + + Stamp; + + -- Inflate using generic instantiation. + + ZLib.Inflate_Init (Filter, Header => Header); + + Translate (Filter); + Print_Statistic ("Generic decompress", ZLib.Total_Out (Filter)); + + ZLib.Close (Filter); + + Close (File_In); + Close (File_Out); + + Compare_Files (In_File_Name, Out_File_Name); + + -- Test stream interface. + + -- Compress to the back stream. + + Open (File_In, In_File, In_File_Name); + Create (File_Back, Out_File, Z_File_Name); + + Stamp; + + ZLib.Streams.Create + (Stream => File_Z, + Mode => ZLib.Streams.Out_Stream, + Back => ZLib.Streams.Stream_Access + (Stream (File_Back)), + Back_Compressed => True, + Level => Level, + Strategy => Strategy, + Header => Header); + + Copy_Streams + (Source => Stream (File_In).all, + Target => File_Z); + + -- Flushing internal buffers to the back stream. + + ZLib.Streams.Flush (File_Z, ZLib.Finish); + + Print_Statistic ("Write compress", + ZLib.Streams.Write_Total_Out (File_Z)); + + ZLib.Streams.Close (File_Z); + + Close (File_In); + Close (File_Back); + + -- Compare reading from original file and from + -- decompression stream. + + Open (File_In, In_File, In_File_Name); + Open (File_Back, In_File, Z_File_Name); + + ZLib.Streams.Create + (Stream => File_Z, + Mode => ZLib.Streams.In_Stream, + Back => ZLib.Streams.Stream_Access + (Stream (File_Back)), + Back_Compressed => True, + Header => Header); + + Stamp; + Compare_Streams (Stream (File_In).all, File_Z); + + Print_Statistic ("Read decompress", + ZLib.Streams.Read_Total_Out (File_Z)); + + ZLib.Streams.Close (File_Z); + Close (File_In); + Close (File_Back); + + -- Compress by reading from compression stream. + + Open (File_Back, In_File, In_File_Name); + Create (File_Out, Out_File, Z_File_Name); + + ZLib.Streams.Create + (Stream => File_Z, + Mode => ZLib.Streams.In_Stream, + Back => ZLib.Streams.Stream_Access + (Stream (File_Back)), + Back_Compressed => False, + Level => Level, + Strategy => Strategy, + Header => Header); + + Stamp; + Copy_Streams + (Source => File_Z, + Target => Stream (File_Out).all); + + Print_Statistic ("Read compress", + ZLib.Streams.Read_Total_Out (File_Z)); + + ZLib.Streams.Close (File_Z); + + Close (File_Out); + Close (File_Back); + + -- Decompress to decompression stream. + + Open (File_In, In_File, Z_File_Name); + Create (File_Back, Out_File, Out_File_Name); + + ZLib.Streams.Create + (Stream => File_Z, + Mode => ZLib.Streams.Out_Stream, + Back => ZLib.Streams.Stream_Access + (Stream (File_Back)), + Back_Compressed => False, + Header => Header); + + Stamp; + + Copy_Streams + (Source => Stream (File_In).all, + Target => File_Z); + + Print_Statistic ("Write decompress", + ZLib.Streams.Write_Total_Out (File_Z)); + + ZLib.Streams.Close (File_Z); + Close (File_In); + Close (File_Back); + + Compare_Files (In_File_Name, Out_File_Name); + end loop; + + Ada.Text_IO.Put_Line (Count'Image (File_Size) & " Ok."); + + exit when not Continuous; + + File_Size := File_Size + 1; + end loop; +end Test; diff --git a/cpukit/zlib/contrib/ada/zlib-streams.adb b/cpukit/zlib/contrib/ada/zlib-streams.adb new file mode 100644 index 0000000000..10a4732959 --- /dev/null +++ b/cpukit/zlib/contrib/ada/zlib-streams.adb @@ -0,0 +1,225 @@ +---------------------------------------------------------------- +-- ZLib for Ada thick binding. -- +-- -- +-- Copyright (C) 2002-2003 Dmitriy Anisimkov -- +-- -- +-- Open source license information is in the zlib.ads file. -- +---------------------------------------------------------------- + +-- $Id$ + +with Ada.Unchecked_Deallocation; + +package body ZLib.Streams is + + ----------- + -- Close -- + ----------- + + procedure Close (Stream : in out Stream_Type) is + procedure Free is new Ada.Unchecked_Deallocation + (Stream_Element_Array, Buffer_Access); + begin + if Stream.Mode = Out_Stream or Stream.Mode = Duplex then + -- We should flush the data written by the writer. + + Flush (Stream, Finish); + + Close (Stream.Writer); + end if; + + if Stream.Mode = In_Stream or Stream.Mode = Duplex then + Close (Stream.Reader); + Free (Stream.Buffer); + end if; + end Close; + + ------------ + -- Create -- + ------------ + + procedure Create + (Stream : out Stream_Type; + Mode : in Stream_Mode; + Back : in Stream_Access; + Back_Compressed : in Boolean; + Level : in Compression_Level := Default_Compression; + Strategy : in Strategy_Type := Default_Strategy; + Header : in Header_Type := Default; + Read_Buffer_Size : in Ada.Streams.Stream_Element_Offset + := Default_Buffer_Size; + Write_Buffer_Size : in Ada.Streams.Stream_Element_Offset + := Default_Buffer_Size) + is + + subtype Buffer_Subtype is Stream_Element_Array (1 .. Read_Buffer_Size); + + procedure Init_Filter + (Filter : in out Filter_Type; + Compress : in Boolean); + + ----------------- + -- Init_Filter -- + ----------------- + + procedure Init_Filter + (Filter : in out Filter_Type; + Compress : in Boolean) is + begin + if Compress then + Deflate_Init + (Filter, Level, Strategy, Header => Header); + else + Inflate_Init (Filter, Header => Header); + end if; + end Init_Filter; + + begin + Stream.Back := Back; + Stream.Mode := Mode; + + if Mode = Out_Stream or Mode = Duplex then + Init_Filter (Stream.Writer, Back_Compressed); + Stream.Buffer_Size := Write_Buffer_Size; + else + Stream.Buffer_Size := 0; + end if; + + if Mode = In_Stream or Mode = Duplex then + Init_Filter (Stream.Reader, not Back_Compressed); + + Stream.Buffer := new Buffer_Subtype; + Stream.Rest_First := Stream.Buffer'Last + 1; + Stream.Rest_Last := Stream.Buffer'Last; + end if; + end Create; + + ----------- + -- Flush -- + ----------- + + procedure Flush + (Stream : in out Stream_Type; + Mode : in Flush_Mode := Sync_Flush) + is + Buffer : Stream_Element_Array (1 .. Stream.Buffer_Size); + Last : Stream_Element_Offset; + begin + loop + Flush (Stream.Writer, Buffer, Last, Mode); + + Ada.Streams.Write (Stream.Back.all, Buffer (1 .. Last)); + + exit when Last < Buffer'Last; + end loop; + end Flush; + + ------------- + -- Is_Open -- + ------------- + + function Is_Open (Stream : Stream_Type) return Boolean is + begin + return Is_Open (Stream.Reader) or else Is_Open (Stream.Writer); + end Is_Open; + + ---------- + -- Read -- + ---------- + + procedure Read + (Stream : in out Stream_Type; + Item : out Stream_Element_Array; + Last : out Stream_Element_Offset) + is + + procedure Read + (Item : out Stream_Element_Array; + Last : out Stream_Element_Offset); + + ---------- + -- Read -- + ---------- + + procedure Read + (Item : out Stream_Element_Array; + Last : out Stream_Element_Offset) is + begin + Ada.Streams.Read (Stream.Back.all, Item, Last); + end Read; + + procedure Read is new ZLib.Read + (Read => Read, + Buffer => Stream.Buffer.all, + Rest_First => Stream.Rest_First, + Rest_Last => Stream.Rest_Last); + + begin + Read (Stream.Reader, Item, Last); + end Read; + + ------------------- + -- Read_Total_In -- + ------------------- + + function Read_Total_In (Stream : in Stream_Type) return Count is + begin + return Total_In (Stream.Reader); + end Read_Total_In; + + -------------------- + -- Read_Total_Out -- + -------------------- + + function Read_Total_Out (Stream : in Stream_Type) return Count is + begin + return Total_Out (Stream.Reader); + end Read_Total_Out; + + ----------- + -- Write -- + ----------- + + procedure Write + (Stream : in out Stream_Type; + Item : in Stream_Element_Array) + is + + procedure Write (Item : in Stream_Element_Array); + + ----------- + -- Write -- + ----------- + + procedure Write (Item : in Stream_Element_Array) is + begin + Ada.Streams.Write (Stream.Back.all, Item); + end Write; + + procedure Write is new ZLib.Write + (Write => Write, + Buffer_Size => Stream.Buffer_Size); + + begin + Write (Stream.Writer, Item, No_Flush); + end Write; + + -------------------- + -- Write_Total_In -- + -------------------- + + function Write_Total_In (Stream : in Stream_Type) return Count is + begin + return Total_In (Stream.Writer); + end Write_Total_In; + + --------------------- + -- Write_Total_Out -- + --------------------- + + function Write_Total_Out (Stream : in Stream_Type) return Count is + begin + return Total_Out (Stream.Writer); + end Write_Total_Out; + +end ZLib.Streams; diff --git a/cpukit/zlib/contrib/ada/zlib-streams.ads b/cpukit/zlib/contrib/ada/zlib-streams.ads new file mode 100644 index 0000000000..7dcbf7e8b6 --- /dev/null +++ b/cpukit/zlib/contrib/ada/zlib-streams.ads @@ -0,0 +1,114 @@ +---------------------------------------------------------------- +-- ZLib for Ada thick binding. -- +-- -- +-- Copyright (C) 2002-2003 Dmitriy Anisimkov -- +-- -- +-- Open source license information is in the zlib.ads file. -- +---------------------------------------------------------------- + +-- $Id$ + +package ZLib.Streams is + + type Stream_Mode is (In_Stream, Out_Stream, Duplex); + + type Stream_Access is access all Ada.Streams.Root_Stream_Type'Class; + + type Stream_Type is + new Ada.Streams.Root_Stream_Type with private; + + procedure Read + (Stream : in out Stream_Type; + Item : out Ada.Streams.Stream_Element_Array; + Last : out Ada.Streams.Stream_Element_Offset); + + procedure Write + (Stream : in out Stream_Type; + Item : in Ada.Streams.Stream_Element_Array); + + procedure Flush + (Stream : in out Stream_Type; + Mode : in Flush_Mode := Sync_Flush); + -- Flush the written data to the back stream, + -- all data placed to the compressor is flushing to the Back stream. + -- Should not be used untill necessary, becouse it is decreasing + -- compression. + + function Read_Total_In (Stream : in Stream_Type) return Count; + pragma Inline (Read_Total_In); + -- Return total number of bytes read from back stream so far. + + function Read_Total_Out (Stream : in Stream_Type) return Count; + pragma Inline (Read_Total_Out); + -- Return total number of bytes read so far. + + function Write_Total_In (Stream : in Stream_Type) return Count; + pragma Inline (Write_Total_In); + -- Return total number of bytes written so far. + + function Write_Total_Out (Stream : in Stream_Type) return Count; + pragma Inline (Write_Total_Out); + -- Return total number of bytes written to the back stream. + + procedure Create + (Stream : out Stream_Type; + Mode : in Stream_Mode; + Back : in Stream_Access; + Back_Compressed : in Boolean; + Level : in Compression_Level := Default_Compression; + Strategy : in Strategy_Type := Default_Strategy; + Header : in Header_Type := Default; + Read_Buffer_Size : in Ada.Streams.Stream_Element_Offset + := Default_Buffer_Size; + Write_Buffer_Size : in Ada.Streams.Stream_Element_Offset + := Default_Buffer_Size); + -- Create the Comression/Decompression stream. + -- If mode is In_Stream then Write operation is disabled. + -- If mode is Out_Stream then Read operation is disabled. + + -- If Back_Compressed is true then + -- Data written to the Stream is compressing to the Back stream + -- and data read from the Stream is decompressed data from the Back stream. + + -- If Back_Compressed is false then + -- Data written to the Stream is decompressing to the Back stream + -- and data read from the Stream is compressed data from the Back stream. + + -- !!! When the Need_Header is False ZLib-Ada is using undocumented + -- ZLib 1.1.4 functionality to do not create/wait for ZLib headers. + + function Is_Open (Stream : Stream_Type) return Boolean; + + procedure Close (Stream : in out Stream_Type); + +private + + use Ada.Streams; + + type Buffer_Access is access all Stream_Element_Array; + + type Stream_Type + is new Root_Stream_Type with + record + Mode : Stream_Mode; + + Buffer : Buffer_Access; + Rest_First : Stream_Element_Offset; + Rest_Last : Stream_Element_Offset; + -- Buffer for Read operation. + -- We need to have this buffer in the record + -- becouse not all read data from back stream + -- could be processed during the read operation. + + Buffer_Size : Stream_Element_Offset; + -- Buffer size for write operation. + -- We do not need to have this buffer + -- in the record becouse all data could be + -- processed in the write operation. + + Back : Stream_Access; + Reader : Filter_Type; + Writer : Filter_Type; + end record; + +end ZLib.Streams; diff --git a/cpukit/zlib/contrib/ada/zlib-thin.adb b/cpukit/zlib/contrib/ada/zlib-thin.adb new file mode 100644 index 0000000000..30924ed7ab --- /dev/null +++ b/cpukit/zlib/contrib/ada/zlib-thin.adb @@ -0,0 +1,141 @@ +---------------------------------------------------------------- +-- ZLib for Ada thick binding. -- +-- -- +-- Copyright (C) 2002-2003 Dmitriy Anisimkov -- +-- -- +-- Open source license information is in the zlib.ads file. -- +---------------------------------------------------------------- + +-- $Id$ + +package body ZLib.Thin is + + ZLIB_VERSION : constant Chars_Ptr := zlibVersion; + + Z_Stream_Size : constant Int := Z_Stream'Size / System.Storage_Unit; + + -------------- + -- Avail_In -- + -------------- + + function Avail_In (Strm : in Z_Stream) return UInt is + begin + return Strm.Avail_In; + end Avail_In; + + --------------- + -- Avail_Out -- + --------------- + + function Avail_Out (Strm : in Z_Stream) return UInt is + begin + return Strm.Avail_Out; + end Avail_Out; + + ------------------ + -- Deflate_Init -- + ------------------ + + function Deflate_Init + (strm : Z_Streamp; + level : Int; + method : Int; + windowBits : Int; + memLevel : Int; + strategy : Int) + return Int is + begin + return deflateInit2 + (strm, + level, + method, + windowBits, + memLevel, + strategy, + ZLIB_VERSION, + Z_Stream_Size); + end Deflate_Init; + + ------------------ + -- Inflate_Init -- + ------------------ + + function Inflate_Init (strm : Z_Streamp; windowBits : Int) return Int is + begin + return inflateInit2 (strm, windowBits, ZLIB_VERSION, Z_Stream_Size); + end Inflate_Init; + + ------------------------ + -- Last_Error_Message -- + ------------------------ + + function Last_Error_Message (Strm : in Z_Stream) return String is + use Interfaces.C.Strings; + begin + if Strm.msg = Null_Ptr then + return ""; + else + return Value (Strm.msg); + end if; + end Last_Error_Message; + + ------------ + -- Set_In -- + ------------ + + procedure Set_In + (Strm : in out Z_Stream; + Buffer : in Voidp; + Size : in UInt) is + begin + Strm.Next_In := Buffer; + Strm.Avail_In := Size; + end Set_In; + + ------------------ + -- Set_Mem_Func -- + ------------------ + + procedure Set_Mem_Func + (Strm : in out Z_Stream; + Opaque : in Voidp; + Alloc : in alloc_func; + Free : in free_func) is + begin + Strm.opaque := Opaque; + Strm.zalloc := Alloc; + Strm.zfree := Free; + end Set_Mem_Func; + + ------------- + -- Set_Out -- + ------------- + + procedure Set_Out + (Strm : in out Z_Stream; + Buffer : in Voidp; + Size : in UInt) is + begin + Strm.Next_Out := Buffer; + Strm.Avail_Out := Size; + end Set_Out; + + -------------- + -- Total_In -- + -------------- + + function Total_In (Strm : in Z_Stream) return ULong is + begin + return Strm.Total_In; + end Total_In; + + --------------- + -- Total_Out -- + --------------- + + function Total_Out (Strm : in Z_Stream) return ULong is + begin + return Strm.Total_Out; + end Total_Out; + +end ZLib.Thin; diff --git a/cpukit/zlib/contrib/ada/zlib-thin.ads b/cpukit/zlib/contrib/ada/zlib-thin.ads new file mode 100644 index 0000000000..2bc085f0aa --- /dev/null +++ b/cpukit/zlib/contrib/ada/zlib-thin.ads @@ -0,0 +1,450 @@ +---------------------------------------------------------------- +-- ZLib for Ada thick binding. -- +-- -- +-- Copyright (C) 2002-2003 Dmitriy Anisimkov -- +-- -- +-- Open source license information is in the zlib.ads file. -- +---------------------------------------------------------------- + +-- $Id$ + +with Interfaces.C.Strings; + +with System; + +private package ZLib.Thin is + + -- From zconf.h + + MAX_MEM_LEVEL : constant := 9; -- zconf.h:105 + -- zconf.h:105 + MAX_WBITS : constant := 15; -- zconf.h:115 + -- 32K LZ77 window + -- zconf.h:115 + SEEK_SET : constant := 8#0000#; -- zconf.h:244 + -- Seek from beginning of file. + -- zconf.h:244 + SEEK_CUR : constant := 1; -- zconf.h:245 + -- Seek from current position. + -- zconf.h:245 + SEEK_END : constant := 2; -- zconf.h:246 + -- Set file pointer to EOF plus "offset" + -- zconf.h:246 + + type Byte is new Interfaces.C.unsigned_char; -- 8 bits + -- zconf.h:214 + type UInt is new Interfaces.C.unsigned; -- 16 bits or more + -- zconf.h:216 + type Int is new Interfaces.C.int; + + type ULong is new Interfaces.C.unsigned_long; -- 32 bits or more + -- zconf.h:217 + subtype Chars_Ptr is Interfaces.C.Strings.chars_ptr; + + type ULong_Access is access ULong; + type Int_Access is access Int; + + subtype Voidp is System.Address; -- zconf.h:232 + + subtype Byte_Access is Voidp; + + Nul : constant Voidp := System.Null_Address; + -- end from zconf + + Z_NO_FLUSH : constant := 8#0000#; -- zlib.h:125 + -- zlib.h:125 + Z_PARTIAL_FLUSH : constant := 1; -- zlib.h:126 + -- will be removed, use + -- Z_SYNC_FLUSH instead + -- zlib.h:126 + Z_SYNC_FLUSH : constant := 2; -- zlib.h:127 + -- zlib.h:127 + Z_FULL_FLUSH : constant := 3; -- zlib.h:128 + -- zlib.h:128 + Z_FINISH : constant := 4; -- zlib.h:129 + -- zlib.h:129 + Z_OK : constant := 8#0000#; -- zlib.h:132 + -- zlib.h:132 + Z_STREAM_END : constant := 1; -- zlib.h:133 + -- zlib.h:133 + Z_NEED_DICT : constant := 2; -- zlib.h:134 + -- zlib.h:134 + Z_ERRNO : constant := -1; -- zlib.h:135 + -- zlib.h:135 + Z_STREAM_ERROR : constant := -2; -- zlib.h:136 + -- zlib.h:136 + Z_DATA_ERROR : constant := -3; -- zlib.h:137 + -- zlib.h:137 + Z_MEM_ERROR : constant := -4; -- zlib.h:138 + -- zlib.h:138 + Z_BUF_ERROR : constant := -5; -- zlib.h:139 + -- zlib.h:139 + Z_VERSION_ERROR : constant := -6; -- zlib.h:140 + -- zlib.h:140 + Z_NO_COMPRESSION : constant := 8#0000#; -- zlib.h:145 + -- zlib.h:145 + Z_BEST_SPEED : constant := 1; -- zlib.h:146 + -- zlib.h:146 + Z_BEST_COMPRESSION : constant := 9; -- zlib.h:147 + -- zlib.h:147 + Z_DEFAULT_COMPRESSION : constant := -1; -- zlib.h:148 + -- zlib.h:148 + Z_FILTERED : constant := 1; -- zlib.h:151 + -- zlib.h:151 + Z_HUFFMAN_ONLY : constant := 2; -- zlib.h:152 + -- zlib.h:152 + Z_DEFAULT_STRATEGY : constant := 8#0000#; -- zlib.h:153 + -- zlib.h:153 + Z_BINARY : constant := 8#0000#; -- zlib.h:156 + -- zlib.h:156 + Z_ASCII : constant := 1; -- zlib.h:157 + -- zlib.h:157 + Z_UNKNOWN : constant := 2; -- zlib.h:158 + -- zlib.h:158 + Z_DEFLATED : constant := 8; -- zlib.h:161 + -- zlib.h:161 + Z_NULL : constant := 8#0000#; -- zlib.h:164 + -- for initializing zalloc, zfree, opaque + -- zlib.h:164 + type gzFile is new Voidp; -- zlib.h:646 + + type Z_Stream is private; + + type Z_Streamp is access all Z_Stream; -- zlib.h:89 + + type alloc_func is access function + (Opaque : Voidp; + Items : UInt; + Size : UInt) + return Voidp; -- zlib.h:63 + + type free_func is access procedure (opaque : Voidp; address : Voidp); + + function zlibVersion return Chars_Ptr; + + function Deflate (strm : Z_Streamp; flush : Int) return Int; + + function DeflateEnd (strm : Z_Streamp) return Int; + + function Inflate (strm : Z_Streamp; flush : Int) return Int; + + function InflateEnd (strm : Z_Streamp) return Int; + + function deflateSetDictionary + (strm : Z_Streamp; + dictionary : Byte_Access; + dictLength : UInt) + return Int; + + function deflateCopy (dest : Z_Streamp; source : Z_Streamp) return Int; + -- zlib.h:478 + + function deflateReset (strm : Z_Streamp) return Int; -- zlib.h:495 + + function deflateParams + (strm : Z_Streamp; + level : Int; + strategy : Int) + return Int; -- zlib.h:506 + + function inflateSetDictionary + (strm : Z_Streamp; + dictionary : Byte_Access; + dictLength : UInt) + return Int; -- zlib.h:548 + + function inflateSync (strm : Z_Streamp) return Int; -- zlib.h:565 + + function inflateReset (strm : Z_Streamp) return Int; -- zlib.h:580 + + function compress + (dest : Byte_Access; + destLen : ULong_Access; + source : Byte_Access; + sourceLen : ULong) + return Int; -- zlib.h:601 + + function compress2 + (dest : Byte_Access; + destLen : ULong_Access; + source : Byte_Access; + sourceLen : ULong; + level : Int) + return Int; -- zlib.h:615 + + function uncompress + (dest : Byte_Access; + destLen : ULong_Access; + source : Byte_Access; + sourceLen : ULong) + return Int; + + function gzopen (path : Chars_Ptr; mode : Chars_Ptr) return gzFile; + + function gzdopen (fd : Int; mode : Chars_Ptr) return gzFile; + + function gzsetparams + (file : gzFile; + level : Int; + strategy : Int) + return Int; + + function gzread + (file : gzFile; + buf : Voidp; + len : UInt) + return Int; + + function gzwrite + (file : in gzFile; + buf : in Voidp; + len : in UInt) + return Int; + + function gzprintf (file : in gzFile; format : in Chars_Ptr) return Int; + + function gzputs (file : in gzFile; s : in Chars_Ptr) return Int; + + function gzgets + (file : gzFile; + buf : Chars_Ptr; + len : Int) + return Chars_Ptr; + + function gzputc (file : gzFile; char : Int) return Int; + + function gzgetc (file : gzFile) return Int; + + function gzflush (file : gzFile; flush : Int) return Int; + + function gzseek + (file : gzFile; + offset : Int; + whence : Int) + return Int; + + function gzrewind (file : gzFile) return Int; + + function gztell (file : gzFile) return Int; + + function gzeof (file : gzFile) return Int; + + function gzclose (file : gzFile) return Int; + + function gzerror (file : gzFile; errnum : Int_Access) return Chars_Ptr; + + function adler32 + (adler : ULong; + buf : Byte_Access; + len : UInt) + return ULong; + + function crc32 + (crc : ULong; + buf : Byte_Access; + len : UInt) + return ULong; + + function deflateInit + (strm : Z_Streamp; + level : Int; + version : Chars_Ptr; + stream_size : Int) + return Int; + + function deflateInit2 + (strm : Z_Streamp; + level : Int; + method : Int; + windowBits : Int; + memLevel : Int; + strategy : Int; + version : Chars_Ptr; + stream_size : Int) + return Int; + + function Deflate_Init + (strm : Z_Streamp; + level : Int; + method : Int; + windowBits : Int; + memLevel : Int; + strategy : Int) + return Int; + pragma Inline (Deflate_Init); + + function inflateInit + (strm : Z_Streamp; + version : Chars_Ptr; + stream_size : Int) + return Int; + + function inflateInit2 + (strm : in Z_Streamp; + windowBits : in Int; + version : in Chars_Ptr; + stream_size : in Int) + return Int; + + function inflateBackInit + (strm : in Z_Streamp; + windowBits : in Int; + window : in Byte_Access; + version : in Chars_Ptr; + stream_size : in Int) + return Int; + -- Size of window have to be 2**windowBits. + + function Inflate_Init (strm : Z_Streamp; windowBits : Int) return Int; + pragma Inline (Inflate_Init); + + function zError (err : Int) return Chars_Ptr; + + function inflateSyncPoint (z : Z_Streamp) return Int; + + function get_crc_table return ULong_Access; + + -- Interface to the available fields of the z_stream structure. + -- The application must update next_in and avail_in when avail_in has + -- dropped to zero. It must update next_out and avail_out when avail_out + -- has dropped to zero. The application must initialize zalloc, zfree and + -- opaque before calling the init function. + + procedure Set_In + (Strm : in out Z_Stream; + Buffer : in Voidp; + Size : in UInt); + pragma Inline (Set_In); + + procedure Set_Out + (Strm : in out Z_Stream; + Buffer : in Voidp; + Size : in UInt); + pragma Inline (Set_Out); + + procedure Set_Mem_Func + (Strm : in out Z_Stream; + Opaque : in Voidp; + Alloc : in alloc_func; + Free : in free_func); + pragma Inline (Set_Mem_Func); + + function Last_Error_Message (Strm : in Z_Stream) return String; + pragma Inline (Last_Error_Message); + + function Avail_Out (Strm : in Z_Stream) return UInt; + pragma Inline (Avail_Out); + + function Avail_In (Strm : in Z_Stream) return UInt; + pragma Inline (Avail_In); + + function Total_In (Strm : in Z_Stream) return ULong; + pragma Inline (Total_In); + + function Total_Out (Strm : in Z_Stream) return ULong; + pragma Inline (Total_Out); + + function inflateCopy + (dest : in Z_Streamp; + Source : in Z_Streamp) + return Int; + + function compressBound (Source_Len : in ULong) return ULong; + + function deflateBound + (Strm : in Z_Streamp; + Source_Len : in ULong) + return ULong; + + function gzungetc (C : in Int; File : in gzFile) return Int; + + function zlibCompileFlags return ULong; + +private + + type Z_Stream is record -- zlib.h:68 + Next_In : Voidp := Nul; -- next input byte + Avail_In : UInt := 0; -- number of bytes available at next_in + Total_In : ULong := 0; -- total nb of input bytes read so far + Next_Out : Voidp := Nul; -- next output byte should be put there + Avail_Out : UInt := 0; -- remaining free space at next_out + Total_Out : ULong := 0; -- total nb of bytes output so far + msg : Chars_Ptr; -- last error message, NULL if no error + state : Voidp; -- not visible by applications + zalloc : alloc_func := null; -- used to allocate the internal state + zfree : free_func := null; -- used to free the internal state + opaque : Voidp; -- private data object passed to + -- zalloc and zfree + data_type : Int; -- best guess about the data type: + -- ascii or binary + adler : ULong; -- adler32 value of the uncompressed + -- data + reserved : ULong; -- reserved for future use + end record; + + pragma Convention (C, Z_Stream); + + pragma Import (C, zlibVersion, "zlibVersion"); + pragma Import (C, Deflate, "deflate"); + pragma Import (C, DeflateEnd, "deflateEnd"); + pragma Import (C, Inflate, "inflate"); + pragma Import (C, InflateEnd, "inflateEnd"); + pragma Import (C, deflateSetDictionary, "deflateSetDictionary"); + pragma Import (C, deflateCopy, "deflateCopy"); + pragma Import (C, deflateReset, "deflateReset"); + pragma Import (C, deflateParams, "deflateParams"); + pragma Import (C, inflateSetDictionary, "inflateSetDictionary"); + pragma Import (C, inflateSync, "inflateSync"); + pragma Import (C, inflateReset, "inflateReset"); + pragma Import (C, compress, "compress"); + pragma Import (C, compress2, "compress2"); + pragma Import (C, uncompress, "uncompress"); + pragma Import (C, gzopen, "gzopen"); + pragma Import (C, gzdopen, "gzdopen"); + pragma Import (C, gzsetparams, "gzsetparams"); + pragma Import (C, gzread, "gzread"); + pragma Import (C, gzwrite, "gzwrite"); + pragma Import (C, gzprintf, "gzprintf"); + pragma Import (C, gzputs, "gzputs"); + pragma Import (C, gzgets, "gzgets"); + pragma Import (C, gzputc, "gzputc"); + pragma Import (C, gzgetc, "gzgetc"); + pragma Import (C, gzflush, "gzflush"); + pragma Import (C, gzseek, "gzseek"); + pragma Import (C, gzrewind, "gzrewind"); + pragma Import (C, gztell, "gztell"); + pragma Import (C, gzeof, "gzeof"); + pragma Import (C, gzclose, "gzclose"); + pragma Import (C, gzerror, "gzerror"); + pragma Import (C, adler32, "adler32"); + pragma Import (C, crc32, "crc32"); + pragma Import (C, deflateInit, "deflateInit_"); + pragma Import (C, inflateInit, "inflateInit_"); + pragma Import (C, deflateInit2, "deflateInit2_"); + pragma Import (C, inflateInit2, "inflateInit2_"); + pragma Import (C, zError, "zError"); + pragma Import (C, inflateSyncPoint, "inflateSyncPoint"); + pragma Import (C, get_crc_table, "get_crc_table"); + + -- since zlib 1.2.0: + + pragma Import (C, inflateCopy, "inflateCopy"); + pragma Import (C, compressBound, "compressBound"); + pragma Import (C, deflateBound, "deflateBound"); + pragma Import (C, gzungetc, "gzungetc"); + pragma Import (C, zlibCompileFlags, "zlibCompileFlags"); + + pragma Import (C, inflateBackInit, "inflateBackInit_"); + + -- I stopped binding the inflateBack routines, becouse realize that + -- it does not support zlib and gzip headers for now, and have no + -- symmetric deflateBack routines. + -- ZLib-Ada is symmetric regarding deflate/inflate data transformation + -- and has a similar generic callback interface for the + -- deflate/inflate transformation based on the regular Deflate/Inflate + -- routines. + + -- pragma Import (C, inflateBack, "inflateBack"); + -- pragma Import (C, inflateBackEnd, "inflateBackEnd"); + +end ZLib.Thin; diff --git a/cpukit/zlib/contrib/ada/zlib.adb b/cpukit/zlib/contrib/ada/zlib.adb new file mode 100644 index 0000000000..8927b48f1b --- /dev/null +++ b/cpukit/zlib/contrib/ada/zlib.adb @@ -0,0 +1,701 @@ +---------------------------------------------------------------- +-- ZLib for Ada thick binding. -- +-- -- +-- Copyright (C) 2002-2004 Dmitriy Anisimkov -- +-- -- +-- Open source license information is in the zlib.ads file. -- +---------------------------------------------------------------- + +-- $Id$ + +with Ada.Exceptions; +with Ada.Unchecked_Conversion; +with Ada.Unchecked_Deallocation; + +with Interfaces.C.Strings; + +with ZLib.Thin; + +package body ZLib is + + use type Thin.Int; + + type Z_Stream is new Thin.Z_Stream; + + type Return_Code_Enum is + (OK, + STREAM_END, + NEED_DICT, + ERRNO, + STREAM_ERROR, + DATA_ERROR, + MEM_ERROR, + BUF_ERROR, + VERSION_ERROR); + + type Flate_Step_Function is access + function (Strm : in Thin.Z_Streamp; Flush : in Thin.Int) return Thin.Int; + pragma Convention (C, Flate_Step_Function); + + type Flate_End_Function is access + function (Ctrm : in Thin.Z_Streamp) return Thin.Int; + pragma Convention (C, Flate_End_Function); + + type Flate_Type is record + Step : Flate_Step_Function; + Done : Flate_End_Function; + end record; + + subtype Footer_Array is Stream_Element_Array (1 .. 8); + + Simple_GZip_Header : constant Stream_Element_Array (1 .. 10) + := (16#1f#, 16#8b#, -- Magic header + 16#08#, -- Z_DEFLATED + 16#00#, -- Flags + 16#00#, 16#00#, 16#00#, 16#00#, -- Time + 16#00#, -- XFlags + 16#03# -- OS code + ); + -- The simplest gzip header is not for informational, but just for + -- gzip format compatibility. + -- Note that some code below is using assumption + -- Simple_GZip_Header'Last > Footer_Array'Last, so do not make + -- Simple_GZip_Header'Last <= Footer_Array'Last. + + Return_Code : constant array (Thin.Int range <>) of Return_Code_Enum + := (0 => OK, + 1 => STREAM_END, + 2 => NEED_DICT, + -1 => ERRNO, + -2 => STREAM_ERROR, + -3 => DATA_ERROR, + -4 => MEM_ERROR, + -5 => BUF_ERROR, + -6 => VERSION_ERROR); + + Flate : constant array (Boolean) of Flate_Type + := (True => (Step => Thin.Deflate'Access, + Done => Thin.DeflateEnd'Access), + False => (Step => Thin.Inflate'Access, + Done => Thin.InflateEnd'Access)); + + Flush_Finish : constant array (Boolean) of Flush_Mode + := (True => Finish, False => No_Flush); + + procedure Raise_Error (Stream : in Z_Stream); + pragma Inline (Raise_Error); + + procedure Raise_Error (Message : in String); + pragma Inline (Raise_Error); + + procedure Check_Error (Stream : in Z_Stream; Code : in Thin.Int); + + procedure Free is new Ada.Unchecked_Deallocation + (Z_Stream, Z_Stream_Access); + + function To_Thin_Access is new Ada.Unchecked_Conversion + (Z_Stream_Access, Thin.Z_Streamp); + + procedure Translate_GZip + (Filter : in out Filter_Type; + In_Data : in Ada.Streams.Stream_Element_Array; + In_Last : out Ada.Streams.Stream_Element_Offset; + Out_Data : out Ada.Streams.Stream_Element_Array; + Out_Last : out Ada.Streams.Stream_Element_Offset; + Flush : in Flush_Mode); + -- Separate translate routine for make gzip header. + + procedure Translate_Auto + (Filter : in out Filter_Type; + In_Data : in Ada.Streams.Stream_Element_Array; + In_Last : out Ada.Streams.Stream_Element_Offset; + Out_Data : out Ada.Streams.Stream_Element_Array; + Out_Last : out Ada.Streams.Stream_Element_Offset; + Flush : in Flush_Mode); + -- translate routine without additional headers. + + ----------------- + -- Check_Error -- + ----------------- + + procedure Check_Error (Stream : in Z_Stream; Code : in Thin.Int) is + use type Thin.Int; + begin + if Code /= Thin.Z_OK then + Raise_Error + (Return_Code_Enum'Image (Return_Code (Code)) + & ": " & Last_Error_Message (Stream)); + end if; + end Check_Error; + + ----------- + -- Close -- + ----------- + + procedure Close + (Filter : in out Filter_Type; + Ignore_Error : in Boolean := False) + is + Code : Thin.Int; + begin + if not Ignore_Error and then not Is_Open (Filter) then + raise Status_Error; + end if; + + Code := Flate (Filter.Compression).Done (To_Thin_Access (Filter.Strm)); + + if Ignore_Error or else Code = Thin.Z_OK then + Free (Filter.Strm); + else + declare + Error_Message : constant String + := Last_Error_Message (Filter.Strm.all); + begin + Free (Filter.Strm); + Ada.Exceptions.Raise_Exception + (ZLib_Error'Identity, + Return_Code_Enum'Image (Return_Code (Code)) + & ": " & Error_Message); + end; + end if; + end Close; + + ----------- + -- CRC32 -- + ----------- + + function CRC32 + (CRC : in Unsigned_32; + Data : in Ada.Streams.Stream_Element_Array) + return Unsigned_32 + is + use Thin; + begin + return Unsigned_32 (crc32 (ULong (CRC), + Data'Address, + Data'Length)); + end CRC32; + + procedure CRC32 + (CRC : in out Unsigned_32; + Data : in Ada.Streams.Stream_Element_Array) is + begin + CRC := CRC32 (CRC, Data); + end CRC32; + + ------------------ + -- Deflate_Init -- + ------------------ + + procedure Deflate_Init + (Filter : in out Filter_Type; + Level : in Compression_Level := Default_Compression; + Strategy : in Strategy_Type := Default_Strategy; + Method : in Compression_Method := Deflated; + Window_Bits : in Window_Bits_Type := Default_Window_Bits; + Memory_Level : in Memory_Level_Type := Default_Memory_Level; + Header : in Header_Type := Default) + is + use type Thin.Int; + Win_Bits : Thin.Int := Thin.Int (Window_Bits); + begin + if Is_Open (Filter) then + raise Status_Error; + end if; + + -- We allow ZLib to make header only in case of default header type. + -- Otherwise we would either do header by ourselfs, or do not do + -- header at all. + + if Header = None or else Header = GZip then + Win_Bits := -Win_Bits; + end if; + + -- For the GZip CRC calculation and make headers. + + if Header = GZip then + Filter.CRC := 0; + Filter.Offset := Simple_GZip_Header'First; + else + Filter.Offset := Simple_GZip_Header'Last + 1; + end if; + + Filter.Strm := new Z_Stream; + Filter.Compression := True; + Filter.Stream_End := False; + Filter.Header := Header; + + if Thin.Deflate_Init + (To_Thin_Access (Filter.Strm), + Level => Thin.Int (Level), + method => Thin.Int (Method), + windowBits => Win_Bits, + memLevel => Thin.Int (Memory_Level), + strategy => Thin.Int (Strategy)) /= Thin.Z_OK + then + Raise_Error (Filter.Strm.all); + end if; + end Deflate_Init; + + ----------- + -- Flush -- + ----------- + + procedure Flush + (Filter : in out Filter_Type; + Out_Data : out Ada.Streams.Stream_Element_Array; + Out_Last : out Ada.Streams.Stream_Element_Offset; + Flush : in Flush_Mode) + is + No_Data : Stream_Element_Array := (1 .. 0 => 0); + Last : Stream_Element_Offset; + begin + Translate (Filter, No_Data, Last, Out_Data, Out_Last, Flush); + end Flush; + + ----------------------- + -- Generic_Translate -- + ----------------------- + + procedure Generic_Translate + (Filter : in out ZLib.Filter_Type; + In_Buffer_Size : in Integer := Default_Buffer_Size; + Out_Buffer_Size : in Integer := Default_Buffer_Size) + is + In_Buffer : Stream_Element_Array + (1 .. Stream_Element_Offset (In_Buffer_Size)); + Out_Buffer : Stream_Element_Array + (1 .. Stream_Element_Offset (Out_Buffer_Size)); + Last : Stream_Element_Offset; + In_Last : Stream_Element_Offset; + In_First : Stream_Element_Offset; + Out_Last : Stream_Element_Offset; + begin + Main : loop + Data_In (In_Buffer, Last); + + In_First := In_Buffer'First; + + loop + Translate + (Filter => Filter, + In_Data => In_Buffer (In_First .. Last), + In_Last => In_Last, + Out_Data => Out_Buffer, + Out_Last => Out_Last, + Flush => Flush_Finish (Last < In_Buffer'First)); + + if Out_Buffer'First <= Out_Last then + Data_Out (Out_Buffer (Out_Buffer'First .. Out_Last)); + end if; + + exit Main when Stream_End (Filter); + + -- The end of in buffer. + + exit when In_Last = Last; + + In_First := In_Last + 1; + end loop; + end loop Main; + + end Generic_Translate; + + ------------------ + -- Inflate_Init -- + ------------------ + + procedure Inflate_Init + (Filter : in out Filter_Type; + Window_Bits : in Window_Bits_Type := Default_Window_Bits; + Header : in Header_Type := Default) + is + use type Thin.Int; + Win_Bits : Thin.Int := Thin.Int (Window_Bits); + + procedure Check_Version; + -- Check the latest header types compatibility. + + procedure Check_Version is + begin + if Version <= "1.1.4" then + Raise_Error + ("Inflate header type " & Header_Type'Image (Header) + & " incompatible with ZLib version " & Version); + end if; + end Check_Version; + + begin + if Is_Open (Filter) then + raise Status_Error; + end if; + + case Header is + when None => + Check_Version; + + -- Inflate data without headers determined + -- by negative Win_Bits. + + Win_Bits := -Win_Bits; + when GZip => + Check_Version; + + -- Inflate gzip data defined by flag 16. + + Win_Bits := Win_Bits + 16; + when Auto => + Check_Version; + + -- Inflate with automatic detection + -- of gzip or native header defined by flag 32. + + Win_Bits := Win_Bits + 32; + when Default => null; + end case; + + Filter.Strm := new Z_Stream; + Filter.Compression := False; + Filter.Stream_End := False; + Filter.Header := Header; + + if Thin.Inflate_Init + (To_Thin_Access (Filter.Strm), Win_Bits) /= Thin.Z_OK + then + Raise_Error (Filter.Strm.all); + end if; + end Inflate_Init; + + ------------- + -- Is_Open -- + ------------- + + function Is_Open (Filter : in Filter_Type) return Boolean is + begin + return Filter.Strm /= null; + end Is_Open; + + ----------------- + -- Raise_Error -- + ----------------- + + procedure Raise_Error (Message : in String) is + begin + Ada.Exceptions.Raise_Exception (ZLib_Error'Identity, Message); + end Raise_Error; + + procedure Raise_Error (Stream : in Z_Stream) is + begin + Raise_Error (Last_Error_Message (Stream)); + end Raise_Error; + + ---------- + -- Read -- + ---------- + + procedure Read + (Filter : in out Filter_Type; + Item : out Ada.Streams.Stream_Element_Array; + Last : out Ada.Streams.Stream_Element_Offset; + Flush : in Flush_Mode := No_Flush) + is + In_Last : Stream_Element_Offset; + Item_First : Ada.Streams.Stream_Element_Offset := Item'First; + V_Flush : Flush_Mode := Flush; + + begin + pragma Assert (Rest_First in Buffer'First .. Buffer'Last + 1); + pragma Assert (Rest_Last in Buffer'First - 1 .. Buffer'Last); + + loop + if Rest_Last = Buffer'First - 1 then + V_Flush := Finish; + + elsif Rest_First > Rest_Last then + Read (Buffer, Rest_Last); + Rest_First := Buffer'First; + + if Rest_Last < Buffer'First then + V_Flush := Finish; + end if; + end if; + + Translate + (Filter => Filter, + In_Data => Buffer (Rest_First .. Rest_Last), + In_Last => In_Last, + Out_Data => Item (Item_First .. Item'Last), + Out_Last => Last, + Flush => V_Flush); + + Rest_First := In_Last + 1; + + exit when Stream_End (Filter) + or else Last = Item'Last + or else (Last >= Item'First and then Allow_Read_Some); + + Item_First := Last + 1; + end loop; + end Read; + + ---------------- + -- Stream_End -- + ---------------- + + function Stream_End (Filter : in Filter_Type) return Boolean is + begin + if Filter.Header = GZip and Filter.Compression then + return Filter.Stream_End + and then Filter.Offset = Footer_Array'Last + 1; + else + return Filter.Stream_End; + end if; + end Stream_End; + + -------------- + -- Total_In -- + -------------- + + function Total_In (Filter : in Filter_Type) return Count is + begin + return Count (Thin.Total_In (To_Thin_Access (Filter.Strm).all)); + end Total_In; + + --------------- + -- Total_Out -- + --------------- + + function Total_Out (Filter : in Filter_Type) return Count is + begin + return Count (Thin.Total_Out (To_Thin_Access (Filter.Strm).all)); + end Total_Out; + + --------------- + -- Translate -- + --------------- + + procedure Translate + (Filter : in out Filter_Type; + In_Data : in Ada.Streams.Stream_Element_Array; + In_Last : out Ada.Streams.Stream_Element_Offset; + Out_Data : out Ada.Streams.Stream_Element_Array; + Out_Last : out Ada.Streams.Stream_Element_Offset; + Flush : in Flush_Mode) is + begin + if Filter.Header = GZip and then Filter.Compression then + Translate_GZip + (Filter => Filter, + In_Data => In_Data, + In_Last => In_Last, + Out_Data => Out_Data, + Out_Last => Out_Last, + Flush => Flush); + else + Translate_Auto + (Filter => Filter, + In_Data => In_Data, + In_Last => In_Last, + Out_Data => Out_Data, + Out_Last => Out_Last, + Flush => Flush); + end if; + end Translate; + + -------------------- + -- Translate_Auto -- + -------------------- + + procedure Translate_Auto + (Filter : in out Filter_Type; + In_Data : in Ada.Streams.Stream_Element_Array; + In_Last : out Ada.Streams.Stream_Element_Offset; + Out_Data : out Ada.Streams.Stream_Element_Array; + Out_Last : out Ada.Streams.Stream_Element_Offset; + Flush : in Flush_Mode) + is + use type Thin.Int; + Code : Thin.Int; + + begin + if not Is_Open (Filter) then + raise Status_Error; + end if; + + if Out_Data'Length = 0 and then In_Data'Length = 0 then + raise Constraint_Error; + end if; + + Set_Out (Filter.Strm.all, Out_Data'Address, Out_Data'Length); + Set_In (Filter.Strm.all, In_Data'Address, In_Data'Length); + + Code := Flate (Filter.Compression).Step + (To_Thin_Access (Filter.Strm), + Thin.Int (Flush)); + + if Code = Thin.Z_STREAM_END then + Filter.Stream_End := True; + else + Check_Error (Filter.Strm.all, Code); + end if; + + In_Last := In_Data'Last + - Stream_Element_Offset (Avail_In (Filter.Strm.all)); + Out_Last := Out_Data'Last + - Stream_Element_Offset (Avail_Out (Filter.Strm.all)); + end Translate_Auto; + + -------------------- + -- Translate_GZip -- + -------------------- + + procedure Translate_GZip + (Filter : in out Filter_Type; + In_Data : in Ada.Streams.Stream_Element_Array; + In_Last : out Ada.Streams.Stream_Element_Offset; + Out_Data : out Ada.Streams.Stream_Element_Array; + Out_Last : out Ada.Streams.Stream_Element_Offset; + Flush : in Flush_Mode) + is + Out_First : Stream_Element_Offset; + + procedure Add_Data (Data : in Stream_Element_Array); + -- Add data to stream from the Filter.Offset till necessary, + -- used for add gzip headr/footer. + + procedure Put_32 + (Item : in out Stream_Element_Array; + Data : in Unsigned_32); + pragma Inline (Put_32); + + -------------- + -- Add_Data -- + -------------- + + procedure Add_Data (Data : in Stream_Element_Array) is + Data_First : Stream_Element_Offset renames Filter.Offset; + Data_Last : Stream_Element_Offset; + Data_Len : Stream_Element_Offset; -- -1 + Out_Len : Stream_Element_Offset; -- -1 + begin + Out_First := Out_Last + 1; + + if Data_First > Data'Last then + return; + end if; + + Data_Len := Data'Last - Data_First; + Out_Len := Out_Data'Last - Out_First; + + if Data_Len <= Out_Len then + Out_Last := Out_First + Data_Len; + Data_Last := Data'Last; + else + Out_Last := Out_Data'Last; + Data_Last := Data_First + Out_Len; + end if; + + Out_Data (Out_First .. Out_Last) := Data (Data_First .. Data_Last); + + Data_First := Data_Last + 1; + Out_First := Out_Last + 1; + end Add_Data; + + ------------ + -- Put_32 -- + ------------ + + procedure Put_32 + (Item : in out Stream_Element_Array; + Data : in Unsigned_32) + is + D : Unsigned_32 := Data; + begin + for J in Item'First .. Item'First + 3 loop + Item (J) := Stream_Element (D and 16#FF#); + D := Shift_Right (D, 8); + end loop; + end Put_32; + + begin + Out_Last := Out_Data'First - 1; + + if not Filter.Stream_End then + Add_Data (Simple_GZip_Header); + + Translate_Auto + (Filter => Filter, + In_Data => In_Data, + In_Last => In_Last, + Out_Data => Out_Data (Out_First .. Out_Data'Last), + Out_Last => Out_Last, + Flush => Flush); + + CRC32 (Filter.CRC, In_Data (In_Data'First .. In_Last)); + end if; + + if Filter.Stream_End and then Out_Last <= Out_Data'Last then + -- This detection method would work only when + -- Simple_GZip_Header'Last > Footer_Array'Last + + if Filter.Offset = Simple_GZip_Header'Last + 1 then + Filter.Offset := Footer_Array'First; + end if; + + declare + Footer : Footer_Array; + begin + Put_32 (Footer, Filter.CRC); + Put_32 (Footer (Footer'First + 4 .. Footer'Last), + Unsigned_32 (Total_In (Filter))); + Add_Data (Footer); + end; + end if; + end Translate_GZip; + + ------------- + -- Version -- + ------------- + + function Version return String is + begin + return Interfaces.C.Strings.Value (Thin.zlibVersion); + end Version; + + ----------- + -- Write -- + ----------- + + procedure Write + (Filter : in out Filter_Type; + Item : in Ada.Streams.Stream_Element_Array; + Flush : in Flush_Mode := No_Flush) + is + Buffer : Stream_Element_Array (1 .. Buffer_Size); + In_Last : Stream_Element_Offset; + Out_Last : Stream_Element_Offset; + In_First : Stream_Element_Offset := Item'First; + begin + if Item'Length = 0 and Flush = No_Flush then + return; + end if; + + loop + Translate + (Filter => Filter, + In_Data => Item (In_First .. Item'Last), + In_Last => In_Last, + Out_Data => Buffer, + Out_Last => Out_Last, + Flush => Flush); + + if Out_Last >= Buffer'First then + Write (Buffer (1 .. Out_Last)); + end if; + + exit when In_Last = Item'Last or Stream_End (Filter); + + In_First := In_Last + 1; + end loop; + end Write; + +end ZLib; diff --git a/cpukit/zlib/contrib/ada/zlib.ads b/cpukit/zlib/contrib/ada/zlib.ads new file mode 100644 index 0000000000..9ada859572 --- /dev/null +++ b/cpukit/zlib/contrib/ada/zlib.ads @@ -0,0 +1,328 @@ +------------------------------------------------------------------------------ +-- ZLib for Ada thick binding. -- +-- -- +-- Copyright (C) 2002-2004 Dmitriy Anisimkov -- +-- -- +-- This library is free software; you can redistribute it and/or modify -- +-- it under the terms of the GNU General Public License as published by -- +-- the Free Software Foundation; either version 2 of the License, or (at -- +-- your option) any later version. -- +-- -- +-- This library is distributed in the hope that it will be useful, but -- +-- WITHOUT ANY WARRANTY; without even the implied warranty of -- +-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -- +-- General Public License for more details. -- +-- -- +-- You should have received a copy of the GNU General Public License -- +-- along with this library; if not, write to the Free Software Foundation, -- +-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. -- +-- -- +-- As a special exception, if other files instantiate generics from this -- +-- unit, or you link this unit with other files to produce an executable, -- +-- this unit does not by itself cause the resulting executable to be -- +-- covered by the GNU General Public License. This exception does not -- +-- however invalidate any other reasons why the executable file might be -- +-- covered by the GNU Public License. -- +------------------------------------------------------------------------------ + +-- $Id$ + +with Ada.Streams; + +with Interfaces; + +package ZLib is + + ZLib_Error : exception; + Status_Error : exception; + + type Compression_Level is new Integer range -1 .. 9; + + type Flush_Mode is private; + + type Compression_Method is private; + + type Window_Bits_Type is new Integer range 8 .. 15; + + type Memory_Level_Type is new Integer range 1 .. 9; + + type Unsigned_32 is new Interfaces.Unsigned_32; + + type Strategy_Type is private; + + type Header_Type is (None, Auto, Default, GZip); + -- Header type usage have a some limitation for inflate. + -- See comment for Inflate_Init. + + subtype Count is Ada.Streams.Stream_Element_Count; + + Default_Memory_Level : constant Memory_Level_Type := 8; + Default_Window_Bits : constant Window_Bits_Type := 15; + + ---------------------------------- + -- Compression method constants -- + ---------------------------------- + + Deflated : constant Compression_Method; + -- Only one method allowed in this ZLib version + + --------------------------------- + -- Compression level constants -- + --------------------------------- + + No_Compression : constant Compression_Level := 0; + Best_Speed : constant Compression_Level := 1; + Best_Compression : constant Compression_Level := 9; + Default_Compression : constant Compression_Level := -1; + + -------------------------- + -- Flush mode constants -- + -------------------------- + + No_Flush : constant Flush_Mode; + -- Regular way for compression, no flush + + Partial_Flush : constant Flush_Mode; + -- Will be removed, use Z_SYNC_FLUSH instead + + Sync_Flush : constant Flush_Mode; + -- All pending output is flushed to the output buffer and the output + -- is aligned on a byte boundary, so that the decompressor can get all + -- input data available so far. (In particular avail_in is zero after the + -- call if enough output space has been provided before the call.) + -- Flushing may degrade compression for some compression algorithms and so + -- it should be used only when necessary. + + Block_Flush : constant Flush_Mode; + -- Z_BLOCK requests that inflate() stop + -- if and when it get to the next deflate block boundary. When decoding the + -- zlib or gzip format, this will cause inflate() to return immediately + -- after the header and before the first block. When doing a raw inflate, + -- inflate() will go ahead and process the first block, and will return + -- when it gets to the end of that block, or when it runs out of data. + + Full_Flush : constant Flush_Mode; + -- All output is flushed as with SYNC_FLUSH, and the compression state + -- is reset so that decompression can restart from this point if previous + -- compressed data has been damaged or if random access is desired. Using + -- Full_Flush too often can seriously degrade the compression. + + Finish : constant Flush_Mode; + -- Just for tell the compressor that input data is complete. + + ------------------------------------ + -- Compression strategy constants -- + ------------------------------------ + + -- RLE stategy could be used only in version 1.2.0 and later. + + Filtered : constant Strategy_Type; + Huffman_Only : constant Strategy_Type; + RLE : constant Strategy_Type; + Default_Strategy : constant Strategy_Type; + + Default_Buffer_Size : constant := 4096; + + type Filter_Type is tagged limited private; + -- The filter is for compression and for decompression. + -- The usage of the type is depend of its initialization. + + function Version return String; + pragma Inline (Version); + -- Return string representation of the ZLib version. + + procedure Deflate_Init + (Filter : in out Filter_Type; + Level : in Compression_Level := Default_Compression; + Strategy : in Strategy_Type := Default_Strategy; + Method : in Compression_Method := Deflated; + Window_Bits : in Window_Bits_Type := Default_Window_Bits; + Memory_Level : in Memory_Level_Type := Default_Memory_Level; + Header : in Header_Type := Default); + -- Compressor initialization. + -- When Header parameter is Auto or Default, then default zlib header + -- would be provided for compressed data. + -- When Header is GZip, then gzip header would be set instead of + -- default header. + -- When Header is None, no header would be set for compressed data. + + procedure Inflate_Init + (Filter : in out Filter_Type; + Window_Bits : in Window_Bits_Type := Default_Window_Bits; + Header : in Header_Type := Default); + -- Decompressor initialization. + -- Default header type mean that ZLib default header is expecting in the + -- input compressed stream. + -- Header type None mean that no header is expecting in the input stream. + -- GZip header type mean that GZip header is expecting in the + -- input compressed stream. + -- Auto header type mean that header type (GZip or Native) would be + -- detected automatically in the input stream. + -- Note that header types parameter values None, GZip and Auto are + -- supported for inflate routine only in ZLib versions 1.2.0.2 and later. + -- Deflate_Init is supporting all header types. + + function Is_Open (Filter : in Filter_Type) return Boolean; + pragma Inline (Is_Open); + -- Is the filter opened for compression or decompression. + + procedure Close + (Filter : in out Filter_Type; + Ignore_Error : in Boolean := False); + -- Closing the compression or decompressor. + -- If stream is closing before the complete and Ignore_Error is False, + -- The exception would be raised. + + generic + with procedure Data_In + (Item : out Ada.Streams.Stream_Element_Array; + Last : out Ada.Streams.Stream_Element_Offset); + with procedure Data_Out + (Item : in Ada.Streams.Stream_Element_Array); + procedure Generic_Translate + (Filter : in out Filter_Type; + In_Buffer_Size : in Integer := Default_Buffer_Size; + Out_Buffer_Size : in Integer := Default_Buffer_Size); + -- Compress/decompress data fetch from Data_In routine and pass the result + -- to the Data_Out routine. User should provide Data_In and Data_Out + -- for compression/decompression data flow. + -- Compression or decompression depend on Filter initialization. + + function Total_In (Filter : in Filter_Type) return Count; + pragma Inline (Total_In); + -- Returns total number of input bytes read so far + + function Total_Out (Filter : in Filter_Type) return Count; + pragma Inline (Total_Out); + -- Returns total number of bytes output so far + + function CRC32 + (CRC : in Unsigned_32; + Data : in Ada.Streams.Stream_Element_Array) + return Unsigned_32; + pragma Inline (CRC32); + -- Compute CRC32, it could be necessary for make gzip format + + procedure CRC32 + (CRC : in out Unsigned_32; + Data : in Ada.Streams.Stream_Element_Array); + pragma Inline (CRC32); + -- Compute CRC32, it could be necessary for make gzip format + + ------------------------------------------------- + -- Below is more complex low level routines. -- + ------------------------------------------------- + + procedure Translate + (Filter : in out Filter_Type; + In_Data : in Ada.Streams.Stream_Element_Array; + In_Last : out Ada.Streams.Stream_Element_Offset; + Out_Data : out Ada.Streams.Stream_Element_Array; + Out_Last : out Ada.Streams.Stream_Element_Offset; + Flush : in Flush_Mode); + -- Compress/decompress the In_Data buffer and place the result into + -- Out_Data. In_Last is the index of last element from In_Data accepted by + -- the Filter. Out_Last is the last element of the received data from + -- Filter. To tell the filter that incoming data are complete put the + -- Flush parameter to Finish. + + function Stream_End (Filter : in Filter_Type) return Boolean; + pragma Inline (Stream_End); + -- Return the true when the stream is complete. + + procedure Flush + (Filter : in out Filter_Type; + Out_Data : out Ada.Streams.Stream_Element_Array; + Out_Last : out Ada.Streams.Stream_Element_Offset; + Flush : in Flush_Mode); + pragma Inline (Flush); + -- Flushing the data from the compressor. + + generic + with procedure Write + (Item : in Ada.Streams.Stream_Element_Array); + -- User should provide this routine for accept + -- compressed/decompressed data. + + Buffer_Size : in Ada.Streams.Stream_Element_Offset + := Default_Buffer_Size; + -- Buffer size for Write user routine. + + procedure Write + (Filter : in out Filter_Type; + Item : in Ada.Streams.Stream_Element_Array; + Flush : in Flush_Mode := No_Flush); + -- Compress/Decompress data from Item to the generic parameter procedure + -- Write. Output buffer size could be set in Buffer_Size generic parameter. + + generic + with procedure Read + (Item : out Ada.Streams.Stream_Element_Array; + Last : out Ada.Streams.Stream_Element_Offset); + -- User should provide data for compression/decompression + -- thru this routine. + + Buffer : in out Ada.Streams.Stream_Element_Array; + -- Buffer for keep remaining data from the previous + -- back read. + + Rest_First, Rest_Last : in out Ada.Streams.Stream_Element_Offset; + -- Rest_First have to be initialized to Buffer'Last + 1 + -- Rest_Last have to be initialized to Buffer'Last + -- before usage. + + Allow_Read_Some : in Boolean := False; + -- Is it allowed to return Last < Item'Last before end of data. + + procedure Read + (Filter : in out Filter_Type; + Item : out Ada.Streams.Stream_Element_Array; + Last : out Ada.Streams.Stream_Element_Offset; + Flush : in Flush_Mode := No_Flush); + -- Compress/Decompress data from generic parameter procedure Read to the + -- Item. User should provide Buffer and initialized Rest_First, Rest_Last + -- indicators. If Allow_Read_Some is True, Read routines could return + -- Last < Item'Last only at end of stream. + +private + + use Ada.Streams; + + pragma Assert (Ada.Streams.Stream_Element'Size = 8); + pragma Assert (Ada.Streams.Stream_Element'Modulus = 2**8); + + type Flush_Mode is new Integer range 0 .. 5; + + type Compression_Method is new Integer range 8 .. 8; + + type Strategy_Type is new Integer range 0 .. 3; + + No_Flush : constant Flush_Mode := 0; + Partial_Flush : constant Flush_Mode := 1; + Sync_Flush : constant Flush_Mode := 2; + Full_Flush : constant Flush_Mode := 3; + Finish : constant Flush_Mode := 4; + Block_Flush : constant Flush_Mode := 5; + + Filtered : constant Strategy_Type := 1; + Huffman_Only : constant Strategy_Type := 2; + RLE : constant Strategy_Type := 3; + Default_Strategy : constant Strategy_Type := 0; + + Deflated : constant Compression_Method := 8; + + type Z_Stream; + + type Z_Stream_Access is access all Z_Stream; + + type Filter_Type is tagged limited record + Strm : Z_Stream_Access; + Compression : Boolean; + Stream_End : Boolean; + Header : Header_Type; + CRC : Unsigned_32; + Offset : Stream_Element_Offset; + -- Offset for gzip header/footer output. + end record; + +end ZLib; diff --git a/cpukit/zlib/contrib/ada/zlib.gpr b/cpukit/zlib/contrib/ada/zlib.gpr new file mode 100644 index 0000000000..296b22aa96 --- /dev/null +++ b/cpukit/zlib/contrib/ada/zlib.gpr @@ -0,0 +1,20 @@ +project Zlib is + + for Languages use ("Ada"); + for Source_Dirs use ("."); + for Object_Dir use "."; + for Main use ("test.adb", "mtest.adb", "read.adb", "buffer_demo"); + + package Compiler is + for Default_Switches ("ada") use ("-gnatwcfilopru", "-gnatVcdfimorst", "-gnatyabcefhiklmnoprst"); + end Compiler; + + package Linker is + for Default_Switches ("ada") use ("-lz"); + end Linker; + + package Builder is + for Default_Switches ("ada") use ("-s", "-gnatQ"); + end Builder; + +end Zlib; diff --git a/cpukit/zlib/contrib/asm586/README.586 b/cpukit/zlib/contrib/asm586/README.586 new file mode 100644 index 0000000000..6bb78f3206 --- /dev/null +++ b/cpukit/zlib/contrib/asm586/README.586 @@ -0,0 +1,43 @@ +This is a patched version of zlib modified to use +Pentium-optimized assembly code in the deflation algorithm. The files +changed/added by this patch are: + +README.586 +match.S + +The effectiveness of these modifications is a bit marginal, as the the +program's bottleneck seems to be mostly L1-cache contention, for which +there is no real way to work around without rewriting the basic +algorithm. The speedup on average is around 5-10% (which is generally +less than the amount of variance between subsequent executions). +However, when used at level 9 compression, the cache contention can +drop enough for the assembly version to achieve 10-20% speedup (and +sometimes more, depending on the amount of overall redundancy in the +files). Even here, though, cache contention can still be the limiting +factor, depending on the nature of the program using the zlib library. +This may also mean that better improvements will be seen on a Pentium +with MMX, which suffers much less from L1-cache contention, but I have +not yet verified this. + +Note that this code has been tailored for the Pentium in particular, +and will not perform well on the Pentium Pro (due to the use of a +partial register in the inner loop). + +If you are using an assembler other than GNU as, you will have to +translate match.S to use your assembler's syntax. (Have fun.) + +Brian Raiter +breadbox@muppetlabs.com +April, 1998 + + +Added for zlib 1.1.3: + +The patches come from +http://www.muppetlabs.com/~breadbox/software/assembly.html + +To compile zlib with this asm file, copy match.S to the zlib directory +then do: + +CFLAGS="-O3 -DASMV" ./configure +make OBJA=match.o diff --git a/cpukit/zlib/contrib/asm586/match.S b/cpukit/zlib/contrib/asm586/match.S new file mode 100644 index 0000000000..8f1614078f --- /dev/null +++ b/cpukit/zlib/contrib/asm586/match.S @@ -0,0 +1,354 @@ +/* match.s -- Pentium-optimized version of longest_match() + * Written for zlib 1.1.2 + * Copyright (C) 1998 Brian Raiter + * + * This is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License. + */ + +#ifndef NO_UNDERLINE +#define match_init _match_init +#define longest_match _longest_match +#endif + +#define MAX_MATCH (258) +#define MIN_MATCH (3) +#define MIN_LOOKAHEAD (MAX_MATCH + MIN_MATCH + 1) +#define MAX_MATCH_8 ((MAX_MATCH + 7) & ~7) + +/* stack frame offsets */ + +#define wmask 0 /* local copy of s->wmask */ +#define window 4 /* local copy of s->window */ +#define windowbestlen 8 /* s->window + bestlen */ +#define chainlenscanend 12 /* high word: current chain len */ + /* low word: last bytes sought */ +#define scanstart 16 /* first two bytes of string */ +#define scanalign 20 /* dword-misalignment of string */ +#define nicematch 24 /* a good enough match size */ +#define bestlen 28 /* size of best match so far */ +#define scan 32 /* ptr to string wanting match */ + +#define LocalVarsSize (36) +/* saved ebx 36 */ +/* saved edi 40 */ +/* saved esi 44 */ +/* saved ebp 48 */ +/* return address 52 */ +#define deflatestate 56 /* the function arguments */ +#define curmatch 60 + +/* Offsets for fields in the deflate_state structure. These numbers + * are calculated from the definition of deflate_state, with the + * assumption that the compiler will dword-align the fields. (Thus, + * changing the definition of deflate_state could easily cause this + * program to crash horribly, without so much as a warning at + * compile time. Sigh.) + */ +#define dsWSize 36 +#define dsWMask 44 +#define dsWindow 48 +#define dsPrev 56 +#define dsMatchLen 88 +#define dsPrevMatch 92 +#define dsStrStart 100 +#define dsMatchStart 104 +#define dsLookahead 108 +#define dsPrevLen 112 +#define dsMaxChainLen 116 +#define dsGoodMatch 132 +#define dsNiceMatch 136 + + +.file "match.S" + +.globl match_init, longest_match + +.text + +/* uInt longest_match(deflate_state *deflatestate, IPos curmatch) */ + +longest_match: + +/* Save registers that the compiler may be using, and adjust %esp to */ +/* make room for our stack frame. */ + + pushl %ebp + pushl %edi + pushl %esi + pushl %ebx + subl $LocalVarsSize, %esp + +/* Retrieve the function arguments. %ecx will hold cur_match */ +/* throughout the entire function. %edx will hold the pointer to the */ +/* deflate_state structure during the function's setup (before */ +/* entering the main loop). */ + + movl deflatestate(%esp), %edx + movl curmatch(%esp), %ecx + +/* if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead; */ + + movl dsNiceMatch(%edx), %eax + movl dsLookahead(%edx), %ebx + cmpl %eax, %ebx + jl LookaheadLess + movl %eax, %ebx +LookaheadLess: movl %ebx, nicematch(%esp) + +/* register Bytef *scan = s->window + s->strstart; */ + + movl dsWindow(%edx), %esi + movl %esi, window(%esp) + movl dsStrStart(%edx), %ebp + lea (%esi,%ebp), %edi + movl %edi, scan(%esp) + +/* Determine how many bytes the scan ptr is off from being */ +/* dword-aligned. */ + + movl %edi, %eax + negl %eax + andl $3, %eax + movl %eax, scanalign(%esp) + +/* IPos limit = s->strstart > (IPos)MAX_DIST(s) ? */ +/* s->strstart - (IPos)MAX_DIST(s) : NIL; */ + + movl dsWSize(%edx), %eax + subl $MIN_LOOKAHEAD, %eax + subl %eax, %ebp + jg LimitPositive + xorl %ebp, %ebp +LimitPositive: + +/* unsigned chain_length = s->max_chain_length; */ +/* if (s->prev_length >= s->good_match) { */ +/* chain_length >>= 2; */ +/* } */ + + movl dsPrevLen(%edx), %eax + movl dsGoodMatch(%edx), %ebx + cmpl %ebx, %eax + movl dsMaxChainLen(%edx), %ebx + jl LastMatchGood + shrl $2, %ebx +LastMatchGood: + +/* chainlen is decremented once beforehand so that the function can */ +/* use the sign flag instead of the zero flag for the exit test. */ +/* It is then shifted into the high word, to make room for the scanend */ +/* scanend value, which it will always accompany. */ + + decl %ebx + shll $16, %ebx + +/* int best_len = s->prev_length; */ + + movl dsPrevLen(%edx), %eax + movl %eax, bestlen(%esp) + +/* Store the sum of s->window + best_len in %esi locally, and in %esi. */ + + addl %eax, %esi + movl %esi, windowbestlen(%esp) + +/* register ush scan_start = *(ushf*)scan; */ +/* register ush scan_end = *(ushf*)(scan+best_len-1); */ + + movw (%edi), %bx + movw %bx, scanstart(%esp) + movw -1(%edi,%eax), %bx + movl %ebx, chainlenscanend(%esp) + +/* Posf *prev = s->prev; */ +/* uInt wmask = s->w_mask; */ + + movl dsPrev(%edx), %edi + movl dsWMask(%edx), %edx + mov %edx, wmask(%esp) + +/* Jump into the main loop. */ + + jmp LoopEntry + +.balign 16 + +/* do { + * match = s->window + cur_match; + * if (*(ushf*)(match+best_len-1) != scan_end || + * *(ushf*)match != scan_start) continue; + * [...] + * } while ((cur_match = prev[cur_match & wmask]) > limit + * && --chain_length != 0); + * + * Here is the inner loop of the function. The function will spend the + * majority of its time in this loop, and majority of that time will + * be spent in the first ten instructions. + * + * Within this loop: + * %ebx = chainlenscanend - i.e., ((chainlen << 16) | scanend) + * %ecx = curmatch + * %edx = curmatch & wmask + * %esi = windowbestlen - i.e., (window + bestlen) + * %edi = prev + * %ebp = limit + * + * Two optimization notes on the choice of instructions: + * + * The first instruction uses a 16-bit address, which costs an extra, + * unpairable cycle. This is cheaper than doing a 32-bit access and + * zeroing the high word, due to the 3-cycle misalignment penalty which + * would occur half the time. This also turns out to be cheaper than + * doing two separate 8-bit accesses, as the memory is so rarely in the + * L1 cache. + * + * The window buffer, however, apparently spends a lot of time in the + * cache, and so it is faster to retrieve the word at the end of the + * match string with two 8-bit loads. The instructions that test the + * word at the beginning of the match string, however, are executed + * much less frequently, and there it was cheaper to use 16-bit + * instructions, which avoided the necessity of saving off and + * subsequently reloading one of the other registers. + */ +LookupLoop: + /* 1 U & V */ + movw (%edi,%edx,2), %cx /* 2 U pipe */ + movl wmask(%esp), %edx /* 2 V pipe */ + cmpl %ebp, %ecx /* 3 U pipe */ + jbe LeaveNow /* 3 V pipe */ + subl $0x00010000, %ebx /* 4 U pipe */ + js LeaveNow /* 4 V pipe */ +LoopEntry: movb -1(%esi,%ecx), %al /* 5 U pipe */ + andl %ecx, %edx /* 5 V pipe */ + cmpb %bl, %al /* 6 U pipe */ + jnz LookupLoop /* 6 V pipe */ + movb (%esi,%ecx), %ah + cmpb %bh, %ah + jnz LookupLoop + movl window(%esp), %eax + movw (%eax,%ecx), %ax + cmpw scanstart(%esp), %ax + jnz LookupLoop + +/* Store the current value of chainlen. */ + + movl %ebx, chainlenscanend(%esp) + +/* Point %edi to the string under scrutiny, and %esi to the string we */ +/* are hoping to match it up with. In actuality, %esi and %edi are */ +/* both pointed (MAX_MATCH_8 - scanalign) bytes ahead, and %edx is */ +/* initialized to -(MAX_MATCH_8 - scanalign). */ + + movl window(%esp), %esi + movl scan(%esp), %edi + addl %ecx, %esi + movl scanalign(%esp), %eax + movl $(-MAX_MATCH_8), %edx + lea MAX_MATCH_8(%edi,%eax), %edi + lea MAX_MATCH_8(%esi,%eax), %esi + +/* Test the strings for equality, 8 bytes at a time. At the end, + * adjust %edx so that it is offset to the exact byte that mismatched. + * + * We already know at this point that the first three bytes of the + * strings match each other, and they can be safely passed over before + * starting the compare loop. So what this code does is skip over 0-3 + * bytes, as much as necessary in order to dword-align the %edi + * pointer. (%esi will still be misaligned three times out of four.) + * + * It should be confessed that this loop usually does not represent + * much of the total running time. Replacing it with a more + * straightforward "rep cmpsb" would not drastically degrade + * performance. + */ +LoopCmps: + movl (%esi,%edx), %eax + movl (%edi,%edx), %ebx + xorl %ebx, %eax + jnz LeaveLoopCmps + movl 4(%esi,%edx), %eax + movl 4(%edi,%edx), %ebx + xorl %ebx, %eax + jnz LeaveLoopCmps4 + addl $8, %edx + jnz LoopCmps + jmp LenMaximum +LeaveLoopCmps4: addl $4, %edx +LeaveLoopCmps: testl $0x0000FFFF, %eax + jnz LenLower + addl $2, %edx + shrl $16, %eax +LenLower: subb $1, %al + adcl $0, %edx + +/* Calculate the length of the match. If it is longer than MAX_MATCH, */ +/* then automatically accept it as the best possible match and leave. */ + + lea (%edi,%edx), %eax + movl scan(%esp), %edi + subl %edi, %eax + cmpl $MAX_MATCH, %eax + jge LenMaximum + +/* If the length of the match is not longer than the best match we */ +/* have so far, then forget it and return to the lookup loop. */ + + movl deflatestate(%esp), %edx + movl bestlen(%esp), %ebx + cmpl %ebx, %eax + jg LongerMatch + movl chainlenscanend(%esp), %ebx + movl windowbestlen(%esp), %esi + movl dsPrev(%edx), %edi + movl wmask(%esp), %edx + andl %ecx, %edx + jmp LookupLoop + +/* s->match_start = cur_match; */ +/* best_len = len; */ +/* if (len >= nice_match) break; */ +/* scan_end = *(ushf*)(scan+best_len-1); */ + +LongerMatch: movl nicematch(%esp), %ebx + movl %eax, bestlen(%esp) + movl %ecx, dsMatchStart(%edx) + cmpl %ebx, %eax + jge LeaveNow + movl window(%esp), %esi + addl %eax, %esi + movl %esi, windowbestlen(%esp) + movl chainlenscanend(%esp), %ebx + movw -1(%edi,%eax), %bx + movl dsPrev(%edx), %edi + movl %ebx, chainlenscanend(%esp) + movl wmask(%esp), %edx + andl %ecx, %edx + jmp LookupLoop + +/* Accept the current string, with the maximum possible length. */ + +LenMaximum: movl deflatestate(%esp), %edx + movl $MAX_MATCH, bestlen(%esp) + movl %ecx, dsMatchStart(%edx) + +/* if ((uInt)best_len <= s->lookahead) return (uInt)best_len; */ +/* return s->lookahead; */ + +LeaveNow: + movl deflatestate(%esp), %edx + movl bestlen(%esp), %ebx + movl dsLookahead(%edx), %eax + cmpl %eax, %ebx + jg LookaheadRet + movl %ebx, %eax +LookaheadRet: + +/* Restore the stack and return from whence we came. */ + + addl $LocalVarsSize, %esp + popl %ebx + popl %esi + popl %edi + popl %ebp +match_init: ret diff --git a/cpukit/zlib/contrib/asm686/README.686 b/cpukit/zlib/contrib/asm686/README.686 new file mode 100644 index 0000000000..a593f23afd --- /dev/null +++ b/cpukit/zlib/contrib/asm686/README.686 @@ -0,0 +1,34 @@ +This is a patched version of zlib, modified to use +Pentium-Pro-optimized assembly code in the deflation algorithm. The +files changed/added by this patch are: + +README.686 +match.S + +The speedup that this patch provides varies, depending on whether the +compiler used to build the original version of zlib falls afoul of the +PPro's speed traps. My own tests show a speedup of around 10-20% at +the default compression level, and 20-30% using -9, against a version +compiled using gcc 2.7.2.3. Your mileage may vary. + +Note that this code has been tailored for the PPro/PII in particular, +and will not perform particuarly well on a Pentium. + +If you are using an assembler other than GNU as, you will have to +translate match.S to use your assembler's syntax. (Have fun.) + +Brian Raiter +breadbox@muppetlabs.com +April, 1998 + + +Added for zlib 1.1.3: + +The patches come from +http://www.muppetlabs.com/~breadbox/software/assembly.html + +To compile zlib with this asm file, copy match.S to the zlib directory +then do: + +CFLAGS="-O3 -DASMV" ./configure +make OBJA=match.o diff --git a/cpukit/zlib/contrib/asm686/match.S b/cpukit/zlib/contrib/asm686/match.S new file mode 100644 index 0000000000..8e86c33c28 --- /dev/null +++ b/cpukit/zlib/contrib/asm686/match.S @@ -0,0 +1,327 @@ +/* match.s -- Pentium-Pro-optimized version of longest_match() + * Written for zlib 1.1.2 + * Copyright (C) 1998 Brian Raiter + * + * This is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License. + */ + +#ifndef NO_UNDERLINE +#define match_init _match_init +#define longest_match _longest_match +#endif + +#define MAX_MATCH (258) +#define MIN_MATCH (3) +#define MIN_LOOKAHEAD (MAX_MATCH + MIN_MATCH + 1) +#define MAX_MATCH_8 ((MAX_MATCH + 7) & ~7) + +/* stack frame offsets */ + +#define chainlenwmask 0 /* high word: current chain len */ + /* low word: s->wmask */ +#define window 4 /* local copy of s->window */ +#define windowbestlen 8 /* s->window + bestlen */ +#define scanstart 16 /* first two bytes of string */ +#define scanend 12 /* last two bytes of string */ +#define scanalign 20 /* dword-misalignment of string */ +#define nicematch 24 /* a good enough match size */ +#define bestlen 28 /* size of best match so far */ +#define scan 32 /* ptr to string wanting match */ + +#define LocalVarsSize (36) +/* saved ebx 36 */ +/* saved edi 40 */ +/* saved esi 44 */ +/* saved ebp 48 */ +/* return address 52 */ +#define deflatestate 56 /* the function arguments */ +#define curmatch 60 + +/* Offsets for fields in the deflate_state structure. These numbers + * are calculated from the definition of deflate_state, with the + * assumption that the compiler will dword-align the fields. (Thus, + * changing the definition of deflate_state could easily cause this + * program to crash horribly, without so much as a warning at + * compile time. Sigh.) + */ +#define dsWSize 36 +#define dsWMask 44 +#define dsWindow 48 +#define dsPrev 56 +#define dsMatchLen 88 +#define dsPrevMatch 92 +#define dsStrStart 100 +#define dsMatchStart 104 +#define dsLookahead 108 +#define dsPrevLen 112 +#define dsMaxChainLen 116 +#define dsGoodMatch 132 +#define dsNiceMatch 136 + + +.file "match.S" + +.globl match_init, longest_match + +.text + +/* uInt longest_match(deflate_state *deflatestate, IPos curmatch) */ + +longest_match: + +/* Save registers that the compiler may be using, and adjust %esp to */ +/* make room for our stack frame. */ + + pushl %ebp + pushl %edi + pushl %esi + pushl %ebx + subl $LocalVarsSize, %esp + +/* Retrieve the function arguments. %ecx will hold cur_match */ +/* throughout the entire function. %edx will hold the pointer to the */ +/* deflate_state structure during the function's setup (before */ +/* entering the main loop). */ + + movl deflatestate(%esp), %edx + movl curmatch(%esp), %ecx + +/* uInt wmask = s->w_mask; */ +/* unsigned chain_length = s->max_chain_length; */ +/* if (s->prev_length >= s->good_match) { */ +/* chain_length >>= 2; */ +/* } */ + + movl dsPrevLen(%edx), %eax + movl dsGoodMatch(%edx), %ebx + cmpl %ebx, %eax + movl dsWMask(%edx), %eax + movl dsMaxChainLen(%edx), %ebx + jl LastMatchGood + shrl $2, %ebx +LastMatchGood: + +/* chainlen is decremented once beforehand so that the function can */ +/* use the sign flag instead of the zero flag for the exit test. */ +/* It is then shifted into the high word, to make room for the wmask */ +/* value, which it will always accompany. */ + + decl %ebx + shll $16, %ebx + orl %eax, %ebx + movl %ebx, chainlenwmask(%esp) + +/* if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead; */ + + movl dsNiceMatch(%edx), %eax + movl dsLookahead(%edx), %ebx + cmpl %eax, %ebx + jl LookaheadLess + movl %eax, %ebx +LookaheadLess: movl %ebx, nicematch(%esp) + +/* register Bytef *scan = s->window + s->strstart; */ + + movl dsWindow(%edx), %esi + movl %esi, window(%esp) + movl dsStrStart(%edx), %ebp + lea (%esi,%ebp), %edi + movl %edi, scan(%esp) + +/* Determine how many bytes the scan ptr is off from being */ +/* dword-aligned. */ + + movl %edi, %eax + negl %eax + andl $3, %eax + movl %eax, scanalign(%esp) + +/* IPos limit = s->strstart > (IPos)MAX_DIST(s) ? */ +/* s->strstart - (IPos)MAX_DIST(s) : NIL; */ + + movl dsWSize(%edx), %eax + subl $MIN_LOOKAHEAD, %eax + subl %eax, %ebp + jg LimitPositive + xorl %ebp, %ebp +LimitPositive: + +/* int best_len = s->prev_length; */ + + movl dsPrevLen(%edx), %eax + movl %eax, bestlen(%esp) + +/* Store the sum of s->window + best_len in %esi locally, and in %esi. */ + + addl %eax, %esi + movl %esi, windowbestlen(%esp) + +/* register ush scan_start = *(ushf*)scan; */ +/* register ush scan_end = *(ushf*)(scan+best_len-1); */ +/* Posf *prev = s->prev; */ + + movzwl (%edi), %ebx + movl %ebx, scanstart(%esp) + movzwl -1(%edi,%eax), %ebx + movl %ebx, scanend(%esp) + movl dsPrev(%edx), %edi + +/* Jump into the main loop. */ + + movl chainlenwmask(%esp), %edx + jmp LoopEntry + +.balign 16 + +/* do { + * match = s->window + cur_match; + * if (*(ushf*)(match+best_len-1) != scan_end || + * *(ushf*)match != scan_start) continue; + * [...] + * } while ((cur_match = prev[cur_match & wmask]) > limit + * && --chain_length != 0); + * + * Here is the inner loop of the function. The function will spend the + * majority of its time in this loop, and majority of that time will + * be spent in the first ten instructions. + * + * Within this loop: + * %ebx = scanend + * %ecx = curmatch + * %edx = chainlenwmask - i.e., ((chainlen << 16) | wmask) + * %esi = windowbestlen - i.e., (window + bestlen) + * %edi = prev + * %ebp = limit + */ +LookupLoop: + andl %edx, %ecx + movzwl (%edi,%ecx,2), %ecx + cmpl %ebp, %ecx + jbe LeaveNow + subl $0x00010000, %edx + js LeaveNow +LoopEntry: movzwl -1(%esi,%ecx), %eax + cmpl %ebx, %eax + jnz LookupLoop + movl window(%esp), %eax + movzwl (%eax,%ecx), %eax + cmpl scanstart(%esp), %eax + jnz LookupLoop + +/* Store the current value of chainlen. */ + + movl %edx, chainlenwmask(%esp) + +/* Point %edi to the string under scrutiny, and %esi to the string we */ +/* are hoping to match it up with. In actuality, %esi and %edi are */ +/* both pointed (MAX_MATCH_8 - scanalign) bytes ahead, and %edx is */ +/* initialized to -(MAX_MATCH_8 - scanalign). */ + + movl window(%esp), %esi + movl scan(%esp), %edi + addl %ecx, %esi + movl scanalign(%esp), %eax + movl $(-MAX_MATCH_8), %edx + lea MAX_MATCH_8(%edi,%eax), %edi + lea MAX_MATCH_8(%esi,%eax), %esi + +/* Test the strings for equality, 8 bytes at a time. At the end, + * adjust %edx so that it is offset to the exact byte that mismatched. + * + * We already know at this point that the first three bytes of the + * strings match each other, and they can be safely passed over before + * starting the compare loop. So what this code does is skip over 0-3 + * bytes, as much as necessary in order to dword-align the %edi + * pointer. (%esi will still be misaligned three times out of four.) + * + * It should be confessed that this loop usually does not represent + * much of the total running time. Replacing it with a more + * straightforward "rep cmpsb" would not drastically degrade + * performance. + */ +LoopCmps: + movl (%esi,%edx), %eax + xorl (%edi,%edx), %eax + jnz LeaveLoopCmps + movl 4(%esi,%edx), %eax + xorl 4(%edi,%edx), %eax + jnz LeaveLoopCmps4 + addl $8, %edx + jnz LoopCmps + jmp LenMaximum +LeaveLoopCmps4: addl $4, %edx +LeaveLoopCmps: testl $0x0000FFFF, %eax + jnz LenLower + addl $2, %edx + shrl $16, %eax +LenLower: subb $1, %al + adcl $0, %edx + +/* Calculate the length of the match. If it is longer than MAX_MATCH, */ +/* then automatically accept it as the best possible match and leave. */ + + lea (%edi,%edx), %eax + movl scan(%esp), %edi + subl %edi, %eax + cmpl $MAX_MATCH, %eax + jge LenMaximum + +/* If the length of the match is not longer than the best match we */ +/* have so far, then forget it and return to the lookup loop. */ + + movl deflatestate(%esp), %edx + movl bestlen(%esp), %ebx + cmpl %ebx, %eax + jg LongerMatch + movl windowbestlen(%esp), %esi + movl dsPrev(%edx), %edi + movl scanend(%esp), %ebx + movl chainlenwmask(%esp), %edx + jmp LookupLoop + +/* s->match_start = cur_match; */ +/* best_len = len; */ +/* if (len >= nice_match) break; */ +/* scan_end = *(ushf*)(scan+best_len-1); */ + +LongerMatch: movl nicematch(%esp), %ebx + movl %eax, bestlen(%esp) + movl %ecx, dsMatchStart(%edx) + cmpl %ebx, %eax + jge LeaveNow + movl window(%esp), %esi + addl %eax, %esi + movl %esi, windowbestlen(%esp) + movzwl -1(%edi,%eax), %ebx + movl dsPrev(%edx), %edi + movl %ebx, scanend(%esp) + movl chainlenwmask(%esp), %edx + jmp LookupLoop + +/* Accept the current string, with the maximum possible length. */ + +LenMaximum: movl deflatestate(%esp), %edx + movl $MAX_MATCH, bestlen(%esp) + movl %ecx, dsMatchStart(%edx) + +/* if ((uInt)best_len <= s->lookahead) return (uInt)best_len; */ +/* return s->lookahead; */ + +LeaveNow: + movl deflatestate(%esp), %edx + movl bestlen(%esp), %ebx + movl dsLookahead(%edx), %eax + cmpl %eax, %ebx + jg LookaheadRet + movl %ebx, %eax +LookaheadRet: + +/* Restore the stack and return from whence we came. */ + + addl $LocalVarsSize, %esp + popl %ebx + popl %esi + popl %edi + popl %ebp +match_init: ret diff --git a/cpukit/zlib/contrib/blast/Makefile b/cpukit/zlib/contrib/blast/Makefile new file mode 100644 index 0000000000..9be80bafe0 --- /dev/null +++ b/cpukit/zlib/contrib/blast/Makefile @@ -0,0 +1,8 @@ +blast: blast.c blast.h + cc -DTEST -o blast blast.c + +test: blast + blast < test.pk | cmp - test.txt + +clean: + rm -f blast blast.o diff --git a/cpukit/zlib/contrib/blast/README b/cpukit/zlib/contrib/blast/README new file mode 100644 index 0000000000..e3a60b3f5c --- /dev/null +++ b/cpukit/zlib/contrib/blast/README @@ -0,0 +1,4 @@ +Read blast.h for purpose and usage. + +Mark Adler +madler@alumni.caltech.edu diff --git a/cpukit/zlib/contrib/blast/blast.c b/cpukit/zlib/contrib/blast/blast.c new file mode 100644 index 0000000000..4ce697a41f --- /dev/null +++ b/cpukit/zlib/contrib/blast/blast.c @@ -0,0 +1,444 @@ +/* blast.c + * Copyright (C) 2003 Mark Adler + * For conditions of distribution and use, see copyright notice in blast.h + * version 1.1, 16 Feb 2003 + * + * blast.c decompresses data compressed by the PKWare Compression Library. + * This function provides functionality similar to the explode() function of + * the PKWare library, hence the name "blast". + * + * This decompressor is based on the excellent format description provided by + * Ben Rudiak-Gould in comp.compression on August 13, 2001. Interestingly, the + * example Ben provided in the post is incorrect. The distance 110001 should + * instead be 111000. When corrected, the example byte stream becomes: + * + * 00 04 82 24 25 8f 80 7f + * + * which decompresses to "AIAIAIAIAIAIA" (without the quotes). + */ + +/* + * Change history: + * + * 1.0 12 Feb 2003 - First version + * 1.1 16 Feb 2003 - Fixed distance check for > 4 GB uncompressed data + */ + +#include /* for setjmp(), longjmp(), and jmp_buf */ +#include "blast.h" /* prototype for blast() */ + +#define local static /* for local function definitions */ +#define MAXBITS 13 /* maximum code length */ +#define MAXWIN 4096 /* maximum window size */ + +/* input and output state */ +struct state { + /* input state */ + blast_in infun; /* input function provided by user */ + void *inhow; /* opaque information passed to infun() */ + unsigned char *in; /* next input location */ + unsigned left; /* available input at in */ + int bitbuf; /* bit buffer */ + int bitcnt; /* number of bits in bit buffer */ + + /* input limit error return state for bits() and decode() */ + jmp_buf env; + + /* output state */ + blast_out outfun; /* output function provided by user */ + void *outhow; /* opaque information passed to outfun() */ + unsigned next; /* index of next write location in out[] */ + int first; /* true to check distances (for first 4K) */ + unsigned char out[MAXWIN]; /* output buffer and sliding window */ +}; + +/* + * Return need bits from the input stream. This always leaves less than + * eight bits in the buffer. bits() works properly for need == 0. + * + * Format notes: + * + * - Bits are stored in bytes from the least significant bit to the most + * significant bit. Therefore bits are dropped from the bottom of the bit + * buffer, using shift right, and new bytes are appended to the top of the + * bit buffer, using shift left. + */ +local int bits(struct state *s, int need) +{ + int val; /* bit accumulator */ + + /* load at least need bits into val */ + val = s->bitbuf; + while (s->bitcnt < need) { + if (s->left == 0) { + s->left = s->infun(s->inhow, &(s->in)); + if (s->left == 0) longjmp(s->env, 1); /* out of input */ + } + val |= (int)(*(s->in)++) << s->bitcnt; /* load eight bits */ + s->left--; + s->bitcnt += 8; + } + + /* drop need bits and update buffer, always zero to seven bits left */ + s->bitbuf = val >> need; + s->bitcnt -= need; + + /* return need bits, zeroing the bits above that */ + return val & ((1 << need) - 1); +} + +/* + * Huffman code decoding tables. count[1..MAXBITS] is the number of symbols of + * each length, which for a canonical code are stepped through in order. + * symbol[] are the symbol values in canonical order, where the number of + * entries is the sum of the counts in count[]. The decoding process can be + * seen in the function decode() below. + */ +struct huffman { + short *count; /* number of symbols of each length */ + short *symbol; /* canonically ordered symbols */ +}; + +/* + * Decode a code from the stream s using huffman table h. Return the symbol or + * a negative value if there is an error. If all of the lengths are zero, i.e. + * an empty code, or if the code is incomplete and an invalid code is received, + * then -9 is returned after reading MAXBITS bits. + * + * Format notes: + * + * - The codes as stored in the compressed data are bit-reversed relative to + * a simple integer ordering of codes of the same lengths. Hence below the + * bits are pulled from the compressed data one at a time and used to + * build the code value reversed from what is in the stream in order to + * permit simple integer comparisons for decoding. + * + * - The first code for the shortest length is all ones. Subsequent codes of + * the same length are simply integer decrements of the previous code. When + * moving up a length, a one bit is appended to the code. For a complete + * code, the last code of the longest length will be all zeros. To support + * this ordering, the bits pulled during decoding are inverted to apply the + * more "natural" ordering starting with all zeros and incrementing. + */ +local int decode(struct state *s, struct huffman *h) +{ + int len; /* current number of bits in code */ + int code; /* len bits being decoded */ + int first; /* first code of length len */ + int count; /* number of codes of length len */ + int index; /* index of first code of length len in symbol table */ + int bitbuf; /* bits from stream */ + int left; /* bits left in next or left to process */ + short *next; /* next number of codes */ + + bitbuf = s->bitbuf; + left = s->bitcnt; + code = first = index = 0; + len = 1; + next = h->count + 1; + while (1) { + while (left--) { + code |= (bitbuf & 1) ^ 1; /* invert code */ + bitbuf >>= 1; + count = *next++; + if (code < first + count) { /* if length len, return symbol */ + s->bitbuf = bitbuf; + s->bitcnt = (s->bitcnt - len) & 7; + return h->symbol[index + (code - first)]; + } + index += count; /* else update for next length */ + first += count; + first <<= 1; + code <<= 1; + len++; + } + left = (MAXBITS+1) - len; + if (left == 0) break; + if (s->left == 0) { + s->left = s->infun(s->inhow, &(s->in)); + if (s->left == 0) longjmp(s->env, 1); /* out of input */ + } + bitbuf = *(s->in)++; + s->left--; + if (left > 8) left = 8; + } + return -9; /* ran out of codes */ +} + +/* + * Given a list of repeated code lengths rep[0..n-1], where each byte is a + * count (high four bits + 1) and a code length (low four bits), generate the + * list of code lengths. This compaction reduces the size of the object code. + * Then given the list of code lengths length[0..n-1] representing a canonical + * Huffman code for n symbols, construct the tables required to decode those + * codes. Those tables are the number of codes of each length, and the symbols + * sorted by length, retaining their original order within each length. The + * return value is zero for a complete code set, negative for an over- + * subscribed code set, and positive for an incomplete code set. The tables + * can be used if the return value is zero or positive, but they cannot be used + * if the return value is negative. If the return value is zero, it is not + * possible for decode() using that table to return an error--any stream of + * enough bits will resolve to a symbol. If the return value is positive, then + * it is possible for decode() using that table to return an error for received + * codes past the end of the incomplete lengths. + */ +local int construct(struct huffman *h, const unsigned char *rep, int n) +{ + int symbol; /* current symbol when stepping through length[] */ + int len; /* current length when stepping through h->count[] */ + int left; /* number of possible codes left of current length */ + short offs[MAXBITS+1]; /* offsets in symbol table for each length */ + short length[256]; /* code lengths */ + + /* convert compact repeat counts into symbol bit length list */ + symbol = 0; + do { + len = *rep++; + left = (len >> 4) + 1; + len &= 15; + do { + length[symbol++] = len; + } while (--left); + } while (--n); + n = symbol; + + /* count number of codes of each length */ + for (len = 0; len <= MAXBITS; len++) + h->count[len] = 0; + for (symbol = 0; symbol < n; symbol++) + (h->count[length[symbol]])++; /* assumes lengths are within bounds */ + if (h->count[0] == n) /* no codes! */ + return 0; /* complete, but decode() will fail */ + + /* check for an over-subscribed or incomplete set of lengths */ + left = 1; /* one possible code of zero length */ + for (len = 1; len <= MAXBITS; len++) { + left <<= 1; /* one more bit, double codes left */ + left -= h->count[len]; /* deduct count from possible codes */ + if (left < 0) return left; /* over-subscribed--return negative */ + } /* left > 0 means incomplete */ + + /* generate offsets into symbol table for each length for sorting */ + offs[1] = 0; + for (len = 1; len < MAXBITS; len++) + offs[len + 1] = offs[len] + h->count[len]; + + /* + * put symbols in table sorted by length, by symbol order within each + * length + */ + for (symbol = 0; symbol < n; symbol++) + if (length[symbol] != 0) + h->symbol[offs[length[symbol]]++] = symbol; + + /* return zero for complete set, positive for incomplete set */ + return left; +} + +/* + * Decode PKWare Compression Library stream. + * + * Format notes: + * + * - First byte is 0 if literals are uncoded or 1 if they are coded. Second + * byte is 4, 5, or 6 for the number of extra bits in the distance code. + * This is the base-2 logarithm of the dictionary size minus six. + * + * - Compressed data is a combination of literals and length/distance pairs + * terminated by an end code. Literals are either Huffman coded or + * uncoded bytes. A length/distance pair is a coded length followed by a + * coded distance to represent a string that occurs earlier in the + * uncompressed data that occurs again at the current location. + * + * - A bit preceding a literal or length/distance pair indicates which comes + * next, 0 for literals, 1 for length/distance. + * + * - If literals are uncoded, then the next eight bits are the literal, in the + * normal bit order in th stream, i.e. no bit-reversal is needed. Similarly, + * no bit reversal is needed for either the length extra bits or the distance + * extra bits. + * + * - Literal bytes are simply written to the output. A length/distance pair is + * an instruction to copy previously uncompressed bytes to the output. The + * copy is from distance bytes back in the output stream, copying for length + * bytes. + * + * - Distances pointing before the beginning of the output data are not + * permitted. + * + * - Overlapped copies, where the length is greater than the distance, are + * allowed and common. For example, a distance of one and a length of 518 + * simply copies the last byte 518 times. A distance of four and a length of + * twelve copies the last four bytes three times. A simple forward copy + * ignoring whether the length is greater than the distance or not implements + * this correctly. + */ +local int decomp(struct state *s) +{ + int lit; /* true if literals are coded */ + int dict; /* log2(dictionary size) - 6 */ + int symbol; /* decoded symbol, extra bits for distance */ + int len; /* length for copy */ + int dist; /* distance for copy */ + int copy; /* copy counter */ + unsigned char *from, *to; /* copy pointers */ + static int virgin = 1; /* build tables once */ + static short litcnt[MAXBITS+1], litsym[256]; /* litcode memory */ + static short lencnt[MAXBITS+1], lensym[16]; /* lencode memory */ + static short distcnt[MAXBITS+1], distsym[64]; /* distcode memory */ + static struct huffman litcode = {litcnt, litsym}; /* length code */ + static struct huffman lencode = {lencnt, lensym}; /* length code */ + static struct huffman distcode = {distcnt, distsym};/* distance code */ + /* bit lengths of literal codes */ + static const unsigned char litlen[] = { + 11, 124, 8, 7, 28, 7, 188, 13, 76, 4, 10, 8, 12, 10, 12, 10, 8, 23, 8, + 9, 7, 6, 7, 8, 7, 6, 55, 8, 23, 24, 12, 11, 7, 9, 11, 12, 6, 7, 22, 5, + 7, 24, 6, 11, 9, 6, 7, 22, 7, 11, 38, 7, 9, 8, 25, 11, 8, 11, 9, 12, + 8, 12, 5, 38, 5, 38, 5, 11, 7, 5, 6, 21, 6, 10, 53, 8, 7, 24, 10, 27, + 44, 253, 253, 253, 252, 252, 252, 13, 12, 45, 12, 45, 12, 61, 12, 45, + 44, 173}; + /* bit lengths of length codes 0..15 */ + static const unsigned char lenlen[] = {2, 35, 36, 53, 38, 23}; + /* bit lengths of distance codes 0..63 */ + static const unsigned char distlen[] = {2, 20, 53, 230, 247, 151, 248}; + static const short base[16] = { /* base for length codes */ + 3, 2, 4, 5, 6, 7, 8, 9, 10, 12, 16, 24, 40, 72, 136, 264}; + static const char extra[16] = { /* extra bits for length codes */ + 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 5, 6, 7, 8}; + + /* set up decoding tables (once--might not be thread-safe) */ + if (virgin) { + construct(&litcode, litlen, sizeof(litlen)); + construct(&lencode, lenlen, sizeof(lenlen)); + construct(&distcode, distlen, sizeof(distlen)); + virgin = 0; + } + + /* read header */ + lit = bits(s, 8); + if (lit > 1) return -1; + dict = bits(s, 8); + if (dict < 4 || dict > 6) return -2; + + /* decode literals and length/distance pairs */ + do { + if (bits(s, 1)) { + /* get length */ + symbol = decode(s, &lencode); + len = base[symbol] + bits(s, extra[symbol]); + if (len == 519) break; /* end code */ + + /* get distance */ + symbol = len == 2 ? 2 : dict; + dist = decode(s, &distcode) << symbol; + dist += bits(s, symbol); + dist++; + if (s->first && dist > s->next) + return -3; /* distance too far back */ + + /* copy length bytes from distance bytes back */ + do { + to = s->out + s->next; + from = to - dist; + copy = MAXWIN; + if (s->next < dist) { + from += copy; + copy = dist; + } + copy -= s->next; + if (copy > len) copy = len; + len -= copy; + s->next += copy; + do { + *to++ = *from++; + } while (--copy); + if (s->next == MAXWIN) { + if (s->outfun(s->outhow, s->out, s->next)) return 1; + s->next = 0; + s->first = 0; + } + } while (len != 0); + } + else { + /* get literal and write it */ + symbol = lit ? decode(s, &litcode) : bits(s, 8); + s->out[s->next++] = symbol; + if (s->next == MAXWIN) { + if (s->outfun(s->outhow, s->out, s->next)) return 1; + s->next = 0; + s->first = 0; + } + } + } while (1); + return 0; +} + +/* See comments in blast.h */ +int blast(blast_in infun, void *inhow, blast_out outfun, void *outhow) +{ + struct state s; /* input/output state */ + int err; /* return value */ + + /* initialize input state */ + s.infun = infun; + s.inhow = inhow; + s.left = 0; + s.bitbuf = 0; + s.bitcnt = 0; + + /* initialize output state */ + s.outfun = outfun; + s.outhow = outhow; + s.next = 0; + s.first = 1; + + /* return if bits() or decode() tries to read past available input */ + if (setjmp(s.env) != 0) /* if came back here via longjmp(), */ + err = 2; /* then skip decomp(), return error */ + else + err = decomp(&s); /* decompress */ + + /* write any leftover output and update the error code if needed */ + if (err != 1 && s.next && s.outfun(s.outhow, s.out, s.next) && err == 0) + err = 1; + return err; +} + +#ifdef TEST +/* Example of how to use blast() */ +#include +#include + +#define CHUNK 16384 + +local unsigned inf(void *how, unsigned char **buf) +{ + static unsigned char hold[CHUNK]; + + *buf = hold; + return fread(hold, 1, CHUNK, (FILE *)how); +} + +local int outf(void *how, unsigned char *buf, unsigned len) +{ + return fwrite(buf, 1, len, (FILE *)how) != len; +} + +/* Decompress a PKWare Compression Library stream from stdin to stdout */ +int main(void) +{ + int ret, n; + + /* decompress to stdout */ + ret = blast(inf, stdin, outf, stdout); + if (ret != 0) fprintf(stderr, "blast error: %d\n", ret); + + /* see if there are any leftover bytes */ + n = 0; + while (getchar() != EOF) n++; + if (n) fprintf(stderr, "blast warning: %d unused bytes of input\n", n); + + /* return blast() error code */ + return ret; +} +#endif diff --git a/cpukit/zlib/contrib/blast/blast.h b/cpukit/zlib/contrib/blast/blast.h new file mode 100644 index 0000000000..ce9e5410f4 --- /dev/null +++ b/cpukit/zlib/contrib/blast/blast.h @@ -0,0 +1,71 @@ +/* blast.h -- interface for blast.c + Copyright (C) 2003 Mark Adler + version 1.1, 16 Feb 2003 + + This software is provided 'as-is', without any express or implied + warranty. In no event will the author be held liable for any damages + arising from the use of this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute it + freely, subject to the following restrictions: + + 1. The origin of this software must not be misrepresented; you must not + claim that you wrote the original software. If you use this software + in a product, an acknowledgment in the product documentation would be + appreciated but is not required. + 2. Altered source versions must be plainly marked as such, and must not be + misrepresented as being the original software. + 3. This notice may not be removed or altered from any source distribution. + + Mark Adler madler@alumni.caltech.edu + */ + + +/* + * blast() decompresses the PKWare Data Compression Library (DCL) compressed + * format. It provides the same functionality as the explode() function in + * that library. (Note: PKWare overused the "implode" verb, and the format + * used by their library implode() function is completely different and + * incompatible with the implode compression method supported by PKZIP.) + */ + + +typedef unsigned (*blast_in)(void *how, unsigned char **buf); +typedef int (*blast_out)(void *how, unsigned char *buf, unsigned len); +/* Definitions for input/output functions passed to blast(). See below for + * what the provided functions need to do. + */ + + +int blast(blast_in infun, void *inhow, blast_out outfun, void *outhow); +/* Decompress input to output using the provided infun() and outfun() calls. + * On success, the return value of blast() is zero. If there is an error in + * the source data, i.e. it is not in the proper format, then a negative value + * is returned. If there is not enough input available or there is not enough + * output space, then a positive error is returned. + * + * The input function is invoked: len = infun(how, &buf), where buf is set by + * infun() to point to the input buffer, and infun() returns the number of + * available bytes there. If infun() returns zero, then blast() returns with + * an input error. (blast() only asks for input if it needs it.) inhow is for + * use by the application to pass an input descriptor to infun(), if desired. + * + * The output function is invoked: err = outfun(how, buf, len), where the bytes + * to be written are buf[0..len-1]. If err is not zero, then blast() returns + * with an output error. outfun() is always called with len <= 4096. outhow + * is for use by the application to pass an output descriptor to outfun(), if + * desired. + * + * The return codes are: + * + * 2: ran out of input before completing decompression + * 1: output error before completing decompression + * 0: successful decompression + * -1: literal flag not zero or one + * -2: dictionary size not in 4..6 + * -3: distance is too far back + * + * At the bottom of blast.c is an example program that uses blast() that can be + * compiled to produce a command-line decompression filter by defining TEST. + */ diff --git a/cpukit/zlib/contrib/blast/test.pk b/cpukit/zlib/contrib/blast/test.pk new file mode 100644 index 0000000000..be10b2bbb2 Binary files /dev/null and b/cpukit/zlib/contrib/blast/test.pk differ diff --git a/cpukit/zlib/contrib/blast/test.txt b/cpukit/zlib/contrib/blast/test.txt new file mode 100644 index 0000000000..bfdf1c5dca --- /dev/null +++ b/cpukit/zlib/contrib/blast/test.txt @@ -0,0 +1 @@ +AIAIAIAIAIAIA \ No newline at end of file diff --git a/cpukit/zlib/contrib/delphi/ZLib.pas b/cpukit/zlib/contrib/delphi/ZLib.pas new file mode 100644 index 0000000000..b9d33e2d72 --- /dev/null +++ b/cpukit/zlib/contrib/delphi/ZLib.pas @@ -0,0 +1,557 @@ +{*******************************************************} +{ } +{ Borland Delphi Supplemental Components } +{ ZLIB Data Compression Interface Unit } +{ } +{ Copyright (c) 1997,99 Borland Corporation } +{ } +{*******************************************************} + +{ Updated for zlib 1.2.x by Cosmin Truta } + +unit ZLib; + +interface + +uses SysUtils, Classes; + +type + TAlloc = function (AppData: Pointer; Items, Size: Integer): Pointer; cdecl; + TFree = procedure (AppData, Block: Pointer); cdecl; + + // Internal structure. Ignore. + TZStreamRec = packed record + next_in: PChar; // next input byte + avail_in: Integer; // number of bytes available at next_in + total_in: Longint; // total nb of input bytes read so far + + next_out: PChar; // next output byte should be put here + avail_out: Integer; // remaining free space at next_out + total_out: Longint; // total nb of bytes output so far + + msg: PChar; // last error message, NULL if no error + internal: Pointer; // not visible by applications + + zalloc: TAlloc; // used to allocate the internal state + zfree: TFree; // used to free the internal state + AppData: Pointer; // private data object passed to zalloc and zfree + + data_type: Integer; // best guess about the data type: ascii or binary + adler: Longint; // adler32 value of the uncompressed data + reserved: Longint; // reserved for future use + end; + + // Abstract ancestor class + TCustomZlibStream = class(TStream) + private + FStrm: TStream; + FStrmPos: Integer; + FOnProgress: TNotifyEvent; + FZRec: TZStreamRec; + FBuffer: array [Word] of Char; + protected + procedure Progress(Sender: TObject); dynamic; + property OnProgress: TNotifyEvent read FOnProgress write FOnProgress; + constructor Create(Strm: TStream); + end; + +{ TCompressionStream compresses data on the fly as data is written to it, and + stores the compressed data to another stream. + + TCompressionStream is write-only and strictly sequential. Reading from the + stream will raise an exception. Using Seek to move the stream pointer + will raise an exception. + + Output data is cached internally, written to the output stream only when + the internal output buffer is full. All pending output data is flushed + when the stream is destroyed. + + The Position property returns the number of uncompressed bytes of + data that have been written to the stream so far. + + CompressionRate returns the on-the-fly percentage by which the original + data has been compressed: (1 - (CompressedBytes / UncompressedBytes)) * 100 + If raw data size = 100 and compressed data size = 25, the CompressionRate + is 75% + + The OnProgress event is called each time the output buffer is filled and + written to the output stream. This is useful for updating a progress + indicator when you are writing a large chunk of data to the compression + stream in a single call.} + + + TCompressionLevel = (clNone, clFastest, clDefault, clMax); + + TCompressionStream = class(TCustomZlibStream) + private + function GetCompressionRate: Single; + public + constructor Create(CompressionLevel: TCompressionLevel; Dest: TStream); + destructor Destroy; override; + function Read(var Buffer; Count: Longint): Longint; override; + function Write(const Buffer; Count: Longint): Longint; override; + function Seek(Offset: Longint; Origin: Word): Longint; override; + property CompressionRate: Single read GetCompressionRate; + property OnProgress; + end; + +{ TDecompressionStream decompresses data on the fly as data is read from it. + + Compressed data comes from a separate source stream. TDecompressionStream + is read-only and unidirectional; you can seek forward in the stream, but not + backwards. The special case of setting the stream position to zero is + allowed. Seeking forward decompresses data until the requested position in + the uncompressed data has been reached. Seeking backwards, seeking relative + to the end of the stream, requesting the size of the stream, and writing to + the stream will raise an exception. + + The Position property returns the number of bytes of uncompressed data that + have been read from the stream so far. + + The OnProgress event is called each time the internal input buffer of + compressed data is exhausted and the next block is read from the input stream. + This is useful for updating a progress indicator when you are reading a + large chunk of data from the decompression stream in a single call.} + + TDecompressionStream = class(TCustomZlibStream) + public + constructor Create(Source: TStream); + destructor Destroy; override; + function Read(var Buffer; Count: Longint): Longint; override; + function Write(const Buffer; Count: Longint): Longint; override; + function Seek(Offset: Longint; Origin: Word): Longint; override; + property OnProgress; + end; + + + +{ CompressBuf compresses data, buffer to buffer, in one call. + In: InBuf = ptr to compressed data + InBytes = number of bytes in InBuf + Out: OutBuf = ptr to newly allocated buffer containing decompressed data + OutBytes = number of bytes in OutBuf } +procedure CompressBuf(const InBuf: Pointer; InBytes: Integer; + out OutBuf: Pointer; out OutBytes: Integer); + + +{ DecompressBuf decompresses data, buffer to buffer, in one call. + In: InBuf = ptr to compressed data + InBytes = number of bytes in InBuf + OutEstimate = zero, or est. size of the decompressed data + Out: OutBuf = ptr to newly allocated buffer containing decompressed data + OutBytes = number of bytes in OutBuf } +procedure DecompressBuf(const InBuf: Pointer; InBytes: Integer; + OutEstimate: Integer; out OutBuf: Pointer; out OutBytes: Integer); + +{ DecompressToUserBuf decompresses data, buffer to buffer, in one call. + In: InBuf = ptr to compressed data + InBytes = number of bytes in InBuf + Out: OutBuf = ptr to user-allocated buffer to contain decompressed data + BufSize = number of bytes in OutBuf } +procedure DecompressToUserBuf(const InBuf: Pointer; InBytes: Integer; + const OutBuf: Pointer; BufSize: Integer); + +const + zlib_version = '1.2.2'; + +type + EZlibError = class(Exception); + ECompressionError = class(EZlibError); + EDecompressionError = class(EZlibError); + +implementation + +uses ZLibConst; + +const + Z_NO_FLUSH = 0; + Z_PARTIAL_FLUSH = 1; + Z_SYNC_FLUSH = 2; + Z_FULL_FLUSH = 3; + Z_FINISH = 4; + + Z_OK = 0; + Z_STREAM_END = 1; + Z_NEED_DICT = 2; + Z_ERRNO = (-1); + Z_STREAM_ERROR = (-2); + Z_DATA_ERROR = (-3); + Z_MEM_ERROR = (-4); + Z_BUF_ERROR = (-5); + Z_VERSION_ERROR = (-6); + + Z_NO_COMPRESSION = 0; + Z_BEST_SPEED = 1; + Z_BEST_COMPRESSION = 9; + Z_DEFAULT_COMPRESSION = (-1); + + Z_FILTERED = 1; + Z_HUFFMAN_ONLY = 2; + Z_RLE = 3; + Z_DEFAULT_STRATEGY = 0; + + Z_BINARY = 0; + Z_ASCII = 1; + Z_UNKNOWN = 2; + + Z_DEFLATED = 8; + + +{$L adler32.obj} +{$L compress.obj} +{$L crc32.obj} +{$L deflate.obj} +{$L infback.obj} +{$L inffast.obj} +{$L inflate.obj} +{$L inftrees.obj} +{$L trees.obj} +{$L uncompr.obj} +{$L zutil.obj} + +procedure adler32; external; +procedure compressBound; external; +procedure crc32; external; +procedure deflateInit2_; external; +procedure deflateParams; external; + +function _malloc(Size: Integer): Pointer; cdecl; +begin + Result := AllocMem(Size); +end; + +procedure _free(Block: Pointer); cdecl; +begin + FreeMem(Block); +end; + +procedure _memset(P: Pointer; B: Byte; count: Integer); cdecl; +begin + FillChar(P^, count, B); +end; + +procedure _memcpy(dest, source: Pointer; count: Integer); cdecl; +begin + Move(source^, dest^, count); +end; + + + +// deflate compresses data +function deflateInit_(var strm: TZStreamRec; level: Integer; version: PChar; + recsize: Integer): Integer; external; +function deflate(var strm: TZStreamRec; flush: Integer): Integer; external; +function deflateEnd(var strm: TZStreamRec): Integer; external; + +// inflate decompresses data +function inflateInit_(var strm: TZStreamRec; version: PChar; + recsize: Integer): Integer; external; +function inflate(var strm: TZStreamRec; flush: Integer): Integer; external; +function inflateEnd(var strm: TZStreamRec): Integer; external; +function inflateReset(var strm: TZStreamRec): Integer; external; + + +function zlibAllocMem(AppData: Pointer; Items, Size: Integer): Pointer; cdecl; +begin +// GetMem(Result, Items*Size); + Result := AllocMem(Items * Size); +end; + +procedure zlibFreeMem(AppData, Block: Pointer); cdecl; +begin + FreeMem(Block); +end; + +{function zlibCheck(code: Integer): Integer; +begin + Result := code; + if code < 0 then + raise EZlibError.Create('error'); //!! +end;} + +function CCheck(code: Integer): Integer; +begin + Result := code; + if code < 0 then + raise ECompressionError.Create('error'); //!! +end; + +function DCheck(code: Integer): Integer; +begin + Result := code; + if code < 0 then + raise EDecompressionError.Create('error'); //!! +end; + +procedure CompressBuf(const InBuf: Pointer; InBytes: Integer; + out OutBuf: Pointer; out OutBytes: Integer); +var + strm: TZStreamRec; + P: Pointer; +begin + FillChar(strm, sizeof(strm), 0); + strm.zalloc := zlibAllocMem; + strm.zfree := zlibFreeMem; + OutBytes := ((InBytes + (InBytes div 10) + 12) + 255) and not 255; + GetMem(OutBuf, OutBytes); + try + strm.next_in := InBuf; + strm.avail_in := InBytes; + strm.next_out := OutBuf; + strm.avail_out := OutBytes; + CCheck(deflateInit_(strm, Z_BEST_COMPRESSION, zlib_version, sizeof(strm))); + try + while CCheck(deflate(strm, Z_FINISH)) <> Z_STREAM_END do + begin + P := OutBuf; + Inc(OutBytes, 256); + ReallocMem(OutBuf, OutBytes); + strm.next_out := PChar(Integer(OutBuf) + (Integer(strm.next_out) - Integer(P))); + strm.avail_out := 256; + end; + finally + CCheck(deflateEnd(strm)); + end; + ReallocMem(OutBuf, strm.total_out); + OutBytes := strm.total_out; + except + FreeMem(OutBuf); + raise + end; +end; + + +procedure DecompressBuf(const InBuf: Pointer; InBytes: Integer; + OutEstimate: Integer; out OutBuf: Pointer; out OutBytes: Integer); +var + strm: TZStreamRec; + P: Pointer; + BufInc: Integer; +begin + FillChar(strm, sizeof(strm), 0); + strm.zalloc := zlibAllocMem; + strm.zfree := zlibFreeMem; + BufInc := (InBytes + 255) and not 255; + if OutEstimate = 0 then + OutBytes := BufInc + else + OutBytes := OutEstimate; + GetMem(OutBuf, OutBytes); + try + strm.next_in := InBuf; + strm.avail_in := InBytes; + strm.next_out := OutBuf; + strm.avail_out := OutBytes; + DCheck(inflateInit_(strm, zlib_version, sizeof(strm))); + try + while DCheck(inflate(strm, Z_NO_FLUSH)) <> Z_STREAM_END do + begin + P := OutBuf; + Inc(OutBytes, BufInc); + ReallocMem(OutBuf, OutBytes); + strm.next_out := PChar(Integer(OutBuf) + (Integer(strm.next_out) - Integer(P))); + strm.avail_out := BufInc; + end; + finally + DCheck(inflateEnd(strm)); + end; + ReallocMem(OutBuf, strm.total_out); + OutBytes := strm.total_out; + except + FreeMem(OutBuf); + raise + end; +end; + +procedure DecompressToUserBuf(const InBuf: Pointer; InBytes: Integer; + const OutBuf: Pointer; BufSize: Integer); +var + strm: TZStreamRec; +begin + FillChar(strm, sizeof(strm), 0); + strm.zalloc := zlibAllocMem; + strm.zfree := zlibFreeMem; + strm.next_in := InBuf; + strm.avail_in := InBytes; + strm.next_out := OutBuf; + strm.avail_out := BufSize; + DCheck(inflateInit_(strm, zlib_version, sizeof(strm))); + try + if DCheck(inflate(strm, Z_FINISH)) <> Z_STREAM_END then + raise EZlibError.CreateRes(@sTargetBufferTooSmall); + finally + DCheck(inflateEnd(strm)); + end; +end; + +// TCustomZlibStream + +constructor TCustomZLibStream.Create(Strm: TStream); +begin + inherited Create; + FStrm := Strm; + FStrmPos := Strm.Position; + FZRec.zalloc := zlibAllocMem; + FZRec.zfree := zlibFreeMem; +end; + +procedure TCustomZLibStream.Progress(Sender: TObject); +begin + if Assigned(FOnProgress) then FOnProgress(Sender); +end; + + +// TCompressionStream + +constructor TCompressionStream.Create(CompressionLevel: TCompressionLevel; + Dest: TStream); +const + Levels: array [TCompressionLevel] of ShortInt = + (Z_NO_COMPRESSION, Z_BEST_SPEED, Z_DEFAULT_COMPRESSION, Z_BEST_COMPRESSION); +begin + inherited Create(Dest); + FZRec.next_out := FBuffer; + FZRec.avail_out := sizeof(FBuffer); + CCheck(deflateInit_(FZRec, Levels[CompressionLevel], zlib_version, sizeof(FZRec))); +end; + +destructor TCompressionStream.Destroy; +begin + FZRec.next_in := nil; + FZRec.avail_in := 0; + try + if FStrm.Position <> FStrmPos then FStrm.Position := FStrmPos; + while (CCheck(deflate(FZRec, Z_FINISH)) <> Z_STREAM_END) + and (FZRec.avail_out = 0) do + begin + FStrm.WriteBuffer(FBuffer, sizeof(FBuffer)); + FZRec.next_out := FBuffer; + FZRec.avail_out := sizeof(FBuffer); + end; + if FZRec.avail_out < sizeof(FBuffer) then + FStrm.WriteBuffer(FBuffer, sizeof(FBuffer) - FZRec.avail_out); + finally + deflateEnd(FZRec); + end; + inherited Destroy; +end; + +function TCompressionStream.Read(var Buffer; Count: Longint): Longint; +begin + raise ECompressionError.CreateRes(@sInvalidStreamOp); +end; + +function TCompressionStream.Write(const Buffer; Count: Longint): Longint; +begin + FZRec.next_in := @Buffer; + FZRec.avail_in := Count; + if FStrm.Position <> FStrmPos then FStrm.Position := FStrmPos; + while (FZRec.avail_in > 0) do + begin + CCheck(deflate(FZRec, 0)); + if FZRec.avail_out = 0 then + begin + FStrm.WriteBuffer(FBuffer, sizeof(FBuffer)); + FZRec.next_out := FBuffer; + FZRec.avail_out := sizeof(FBuffer); + FStrmPos := FStrm.Position; + Progress(Self); + end; + end; + Result := Count; +end; + +function TCompressionStream.Seek(Offset: Longint; Origin: Word): Longint; +begin + if (Offset = 0) and (Origin = soFromCurrent) then + Result := FZRec.total_in + else + raise ECompressionError.CreateRes(@sInvalidStreamOp); +end; + +function TCompressionStream.GetCompressionRate: Single; +begin + if FZRec.total_in = 0 then + Result := 0 + else + Result := (1.0 - (FZRec.total_out / FZRec.total_in)) * 100.0; +end; + + +// TDecompressionStream + +constructor TDecompressionStream.Create(Source: TStream); +begin + inherited Create(Source); + FZRec.next_in := FBuffer; + FZRec.avail_in := 0; + DCheck(inflateInit_(FZRec, zlib_version, sizeof(FZRec))); +end; + +destructor TDecompressionStream.Destroy; +begin + FStrm.Seek(-FZRec.avail_in, 1); + inflateEnd(FZRec); + inherited Destroy; +end; + +function TDecompressionStream.Read(var Buffer; Count: Longint): Longint; +begin + FZRec.next_out := @Buffer; + FZRec.avail_out := Count; + if FStrm.Position <> FStrmPos then FStrm.Position := FStrmPos; + while (FZRec.avail_out > 0) do + begin + if FZRec.avail_in = 0 then + begin + FZRec.avail_in := FStrm.Read(FBuffer, sizeof(FBuffer)); + if FZRec.avail_in = 0 then + begin + Result := Count - FZRec.avail_out; + Exit; + end; + FZRec.next_in := FBuffer; + FStrmPos := FStrm.Position; + Progress(Self); + end; + CCheck(inflate(FZRec, 0)); + end; + Result := Count; +end; + +function TDecompressionStream.Write(const Buffer; Count: Longint): Longint; +begin + raise EDecompressionError.CreateRes(@sInvalidStreamOp); +end; + +function TDecompressionStream.Seek(Offset: Longint; Origin: Word): Longint; +var + I: Integer; + Buf: array [0..4095] of Char; +begin + if (Offset = 0) and (Origin = soFromBeginning) then + begin + DCheck(inflateReset(FZRec)); + FZRec.next_in := FBuffer; + FZRec.avail_in := 0; + FStrm.Position := 0; + FStrmPos := 0; + end + else if ( (Offset >= 0) and (Origin = soFromCurrent)) or + ( ((Offset - FZRec.total_out) > 0) and (Origin = soFromBeginning)) then + begin + if Origin = soFromBeginning then Dec(Offset, FZRec.total_out); + if Offset > 0 then + begin + for I := 1 to Offset div sizeof(Buf) do + ReadBuffer(Buf, sizeof(Buf)); + ReadBuffer(Buf, Offset mod sizeof(Buf)); + end; + end + else + raise EDecompressionError.CreateRes(@sInvalidStreamOp); + Result := FZRec.total_out; +end; + + +end. diff --git a/cpukit/zlib/contrib/delphi/ZLibConst.pas b/cpukit/zlib/contrib/delphi/ZLibConst.pas new file mode 100644 index 0000000000..cdfe13671d --- /dev/null +++ b/cpukit/zlib/contrib/delphi/ZLibConst.pas @@ -0,0 +1,11 @@ +unit ZLibConst; + +interface + +resourcestring + sTargetBufferTooSmall = 'ZLib error: target buffer may be too small'; + sInvalidStreamOp = 'Invalid stream operation'; + +implementation + +end. diff --git a/cpukit/zlib/contrib/delphi/readme.txt b/cpukit/zlib/contrib/delphi/readme.txt new file mode 100644 index 0000000000..2dc9a8bba2 --- /dev/null +++ b/cpukit/zlib/contrib/delphi/readme.txt @@ -0,0 +1,76 @@ + +Overview +======== + +This directory contains an update to the ZLib interface unit, +distributed by Borland as a Delphi supplemental component. + +The original ZLib unit is Copyright (c) 1997,99 Borland Corp., +and is based on zlib version 1.0.4. There are a series of bugs +and security problems associated with that old zlib version, and +we recommend the users to update their ZLib unit. + + +Summary of modifications +======================== + +- Improved makefile, adapted to zlib version 1.2.1. + +- Some field types from TZStreamRec are changed from Integer to + Longint, for consistency with the zlib.h header, and for 64-bit + readiness. + +- The zlib_version constant is updated. + +- The new Z_RLE strategy has its corresponding symbolic constant. + +- The allocation and deallocation functions and function types + (TAlloc, TFree, zlibAllocMem and zlibFreeMem) are now cdecl, + and _malloc and _free are added as C RTL stubs. As a result, + the original C sources of zlib can be compiled out of the box, + and linked to the ZLib unit. + + +Suggestions for improvements +============================ + +Currently, the ZLib unit provides only a limited wrapper around +the zlib library, and much of the original zlib functionality is +missing. Handling compressed file formats like ZIP/GZIP or PNG +cannot be implemented without having this functionality. +Applications that handle these formats are either using their own, +duplicated code, or not using the ZLib unit at all. + +Here are a few suggestions: + +- Checksum class wrappers around adler32() and crc32(), similar + to the Java classes that implement the java.util.zip.Checksum + interface. + +- The ability to read and write raw deflate streams, without the + zlib stream header and trailer. Raw deflate streams are used + in the ZIP file format. + +- The ability to read and write gzip streams, used in the GZIP + file format, and normally produced by the gzip program. + +- The ability to select a different compression strategy, useful + to PNG and MNG image compression, and to multimedia compression + in general. Besides the compression level + + TCompressionLevel = (clNone, clFastest, clDefault, clMax); + + which, in fact, could have used the 'z' prefix and avoided + TColor-like symbols + + TCompressionLevel = (zcNone, zcFastest, zcDefault, zcMax); + + there could be a compression strategy + + TCompressionStrategy = (zsDefault, zsFiltered, zsHuffmanOnly, zsRle); + +- ZIP and GZIP stream handling via TStreams. + + +-- +Cosmin Truta diff --git a/cpukit/zlib/contrib/delphi/zlibd32.mak b/cpukit/zlib/contrib/delphi/zlibd32.mak new file mode 100644 index 0000000000..88fafa0b14 --- /dev/null +++ b/cpukit/zlib/contrib/delphi/zlibd32.mak @@ -0,0 +1,93 @@ +# Makefile for zlib +# For use with Delphi and C++ Builder under Win32 +# Updated for zlib 1.2.x by Cosmin Truta + +# ------------ Borland C++ ------------ + +# This project uses the Delphi (fastcall/register) calling convention: +LOC = -DZEXPORT=__fastcall -DZEXPORTVA=__cdecl + +CC = bcc32 +LD = bcc32 +AR = tlib +# do not use "-pr" in CFLAGS +CFLAGS = -a -d -k- -O2 $(LOC) +LDFLAGS = + + +# variables +ZLIB_LIB = zlib.lib + +OBJ1 = adler32.obj compress.obj crc32.obj deflate.obj gzio.obj infback.obj +OBJ2 = inffast.obj inflate.obj inftrees.obj trees.obj uncompr.obj zutil.obj +OBJP1 = +adler32.obj+compress.obj+crc32.obj+deflate.obj+gzio.obj+infback.obj +OBJP2 = +inffast.obj+inflate.obj+inftrees.obj+trees.obj+uncompr.obj+zutil.obj + + +# targets +all: $(ZLIB_LIB) example.exe minigzip.exe + +.c.obj: + $(CC) -c $(CFLAGS) $*.c + +adler32.obj: adler32.c zlib.h zconf.h + +compress.obj: compress.c zlib.h zconf.h + +crc32.obj: crc32.c zlib.h zconf.h crc32.h + +deflate.obj: deflate.c deflate.h zutil.h zlib.h zconf.h + +gzio.obj: gzio.c zutil.h zlib.h zconf.h + +infback.obj: infback.c zutil.h zlib.h zconf.h inftrees.h inflate.h \ + inffast.h inffixed.h + +inffast.obj: inffast.c zutil.h zlib.h zconf.h inftrees.h inflate.h \ + inffast.h + +inflate.obj: inflate.c zutil.h zlib.h zconf.h inftrees.h inflate.h \ + inffast.h inffixed.h + +inftrees.obj: inftrees.c zutil.h zlib.h zconf.h inftrees.h + +trees.obj: trees.c zutil.h zlib.h zconf.h deflate.h trees.h + +uncompr.obj: uncompr.c zlib.h zconf.h + +zutil.obj: zutil.c zutil.h zlib.h zconf.h + +example.obj: example.c zlib.h zconf.h + +minigzip.obj: minigzip.c zlib.h zconf.h + + +# For the sake of the old Borland make, +# the command line is cut to fit in the MS-DOS 128 byte limit: +$(ZLIB_LIB): $(OBJ1) $(OBJ2) + -del $(ZLIB_LIB) + $(AR) $(ZLIB_LIB) $(OBJP1) + $(AR) $(ZLIB_LIB) $(OBJP2) + + +# testing +test: example.exe minigzip.exe + example + echo hello world | minigzip | minigzip -d + +example.exe: example.obj $(ZLIB_LIB) + $(LD) $(LDFLAGS) example.obj $(ZLIB_LIB) + +minigzip.exe: minigzip.obj $(ZLIB_LIB) + $(LD) $(LDFLAGS) minigzip.obj $(ZLIB_LIB) + + +# cleanup +clean: + -del *.obj + -del *.exe + -del *.lib + -del *.tds + -del zlib.bak + -del foo.gz + diff --git a/cpukit/zlib/contrib/dotzlib/DotZLib.build b/cpukit/zlib/contrib/dotzlib/DotZLib.build new file mode 100644 index 0000000000..ed19cc9dcd --- /dev/null +++ b/cpukit/zlib/contrib/dotzlib/DotZLib.build @@ -0,0 +1,33 @@ + + + A .Net wrapper library around ZLib1.dll + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + \ No newline at end of file diff --git a/cpukit/zlib/contrib/dotzlib/DotZLib.chm b/cpukit/zlib/contrib/dotzlib/DotZLib.chm new file mode 100644 index 0000000000..0bc7df76e4 Binary files /dev/null and b/cpukit/zlib/contrib/dotzlib/DotZLib.chm differ diff --git a/cpukit/zlib/contrib/dotzlib/DotZLib.sln b/cpukit/zlib/contrib/dotzlib/DotZLib.sln new file mode 100644 index 0000000000..ac45ca048b --- /dev/null +++ b/cpukit/zlib/contrib/dotzlib/DotZLib.sln @@ -0,0 +1,21 @@ +Microsoft Visual Studio Solution File, Format Version 8.00 +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DotZLib", "DotZLib\DotZLib.csproj", "{BB1EE0B1-1808-46CB-B786-949D91117FC5}" + ProjectSection(ProjectDependencies) = postProject + EndProjectSection +EndProject +Global + GlobalSection(SolutionConfiguration) = preSolution + Debug = Debug + Release = Release + EndGlobalSection + GlobalSection(ProjectConfiguration) = postSolution + {BB1EE0B1-1808-46CB-B786-949D91117FC5}.Debug.ActiveCfg = Debug|.NET + {BB1EE0B1-1808-46CB-B786-949D91117FC5}.Debug.Build.0 = Debug|.NET + {BB1EE0B1-1808-46CB-B786-949D91117FC5}.Release.ActiveCfg = Release|.NET + {BB1EE0B1-1808-46CB-B786-949D91117FC5}.Release.Build.0 = Release|.NET + EndGlobalSection + GlobalSection(ExtensibilityGlobals) = postSolution + EndGlobalSection + GlobalSection(ExtensibilityAddIns) = postSolution + EndGlobalSection +EndGlobal diff --git a/cpukit/zlib/contrib/dotzlib/DotZLib/AssemblyInfo.cs b/cpukit/zlib/contrib/dotzlib/DotZLib/AssemblyInfo.cs new file mode 100644 index 0000000000..6fc0fdcc24 --- /dev/null +++ b/cpukit/zlib/contrib/dotzlib/DotZLib/AssemblyInfo.cs @@ -0,0 +1,58 @@ +using System.Reflection; +using System.Runtime.CompilerServices; + +// +// General Information about an assembly is controlled through the following +// set of attributes. Change these attribute values to modify the information +// associated with an assembly. +// +[assembly: AssemblyTitle("DotZLib")] +[assembly: AssemblyDescription(".Net bindings for ZLib compression dll 1.2.x")] +[assembly: AssemblyConfiguration("")] +[assembly: AssemblyCompany("Henrik Ravn")] +[assembly: AssemblyProduct("")] +[assembly: AssemblyCopyright("(c) 2004 by Henrik Ravn")] +[assembly: AssemblyTrademark("")] +[assembly: AssemblyCulture("")] + +// +// Version information for an assembly consists of the following four values: +// +// Major Version +// Minor Version +// Build Number +// Revision +// +// You can specify all the values or you can default the Revision and Build Numbers +// by using the '*' as shown below: + +[assembly: AssemblyVersion("1.0.*")] + +// +// In order to sign your assembly you must specify a key to use. Refer to the +// Microsoft .NET Framework documentation for more information on assembly signing. +// +// Use the attributes below to control which key is used for signing. +// +// Notes: +// (*) If no key is specified, the assembly is not signed. +// (*) KeyName refers to a key that has been installed in the Crypto Service +// Provider (CSP) on your machine. KeyFile refers to a file which contains +// a key. +// (*) If the KeyFile and the KeyName values are both specified, the +// following processing occurs: +// (1) If the KeyName can be found in the CSP, that key is used. +// (2) If the KeyName does not exist and the KeyFile does exist, the key +// in the KeyFile is installed into the CSP and used. +// (*) In order to create a KeyFile, you can use the sn.exe (Strong Name) utility. +// When specifying the KeyFile, the location of the KeyFile should be +// relative to the project output directory which is +// %Project Directory%\obj\. For example, if your KeyFile is +// located in the project directory, you would specify the AssemblyKeyFile +// attribute as [assembly: AssemblyKeyFile("..\\..\\mykey.snk")] +// (*) Delay Signing is an advanced option - see the Microsoft .NET Framework +// documentation for more information on this. +// +[assembly: AssemblyDelaySign(false)] +[assembly: AssemblyKeyFile("")] +[assembly: AssemblyKeyName("")] diff --git a/cpukit/zlib/contrib/dotzlib/DotZLib/ChecksumImpl.cs b/cpukit/zlib/contrib/dotzlib/DotZLib/ChecksumImpl.cs new file mode 100644 index 0000000000..dfe7e90a8a --- /dev/null +++ b/cpukit/zlib/contrib/dotzlib/DotZLib/ChecksumImpl.cs @@ -0,0 +1,202 @@ +// +// © Copyright Henrik Ravn 2004 +// +// Use, modification and distribution are subject to the Boost Software License, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) +// + +using System; +using System.Runtime.InteropServices; +using System.Text; + + +namespace DotZLib +{ + #region ChecksumGeneratorBase + /// + /// Implements the common functionality needed for all s + /// + /// + public abstract class ChecksumGeneratorBase : ChecksumGenerator + { + /// + /// The value of the current checksum + /// + protected uint _current; + + /// + /// Initializes a new instance of the checksum generator base - the current checksum is + /// set to zero + /// + public ChecksumGeneratorBase() + { + _current = 0; + } + + /// + /// Initializes a new instance of the checksum generator basewith a specified value + /// + /// The value to set the current checksum to + public ChecksumGeneratorBase(uint initialValue) + { + _current = initialValue; + } + + /// + /// Resets the current checksum to zero + /// + public void Reset() { _current = 0; } + + /// + /// Gets the current checksum value + /// + public uint Value { get { return _current; } } + + /// + /// Updates the current checksum with part of an array of bytes + /// + /// The data to update the checksum with + /// Where in data to start updating + /// The number of bytes from data to use + /// The sum of offset and count is larger than the length of data + /// data is a null reference + /// Offset or count is negative. + /// All the other Update methods are implmeneted in terms of this one. + /// This is therefore the only method a derived class has to implement + public abstract void Update(byte[] data, int offset, int count); + + /// + /// Updates the current checksum with an array of bytes. + /// + /// The data to update the checksum with + public void Update(byte[] data) + { + Update(data, 0, data.Length); + } + + /// + /// Updates the current checksum with the data from a string + /// + /// The string to update the checksum with + /// The characters in the string are converted by the UTF-8 encoding + public void Update(string data) + { + Update(Encoding.UTF8.GetBytes(data)); + } + + /// + /// Updates the current checksum with the data from a string, using a specific encoding + /// + /// The string to update the checksum with + /// The encoding to use + public void Update(string data, Encoding encoding) + { + Update(encoding.GetBytes(data)); + } + + } + #endregion + + #region CRC32 + /// + /// Implements a CRC32 checksum generator + /// + public sealed class CRC32Checksum : ChecksumGeneratorBase + { + #region DLL imports + + [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)] + private static extern uint crc32(uint crc, int data, uint length); + + #endregion + + /// + /// Initializes a new instance of the CRC32 checksum generator + /// + public CRC32Checksum() : base() {} + + /// + /// Initializes a new instance of the CRC32 checksum generator with a specified value + /// + /// The value to set the current checksum to + public CRC32Checksum(uint initialValue) : base(initialValue) {} + + /// + /// Updates the current checksum with part of an array of bytes + /// + /// The data to update the checksum with + /// Where in data to start updating + /// The number of bytes from data to use + /// The sum of offset and count is larger than the length of data + /// data is a null reference + /// Offset or count is negative. + public override void Update(byte[] data, int offset, int count) + { + if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException(); + if ((offset+count) > data.Length) throw new ArgumentException(); + GCHandle hData = GCHandle.Alloc(data, GCHandleType.Pinned); + try + { + _current = crc32(_current, hData.AddrOfPinnedObject().ToInt32()+offset, (uint)count); + } + finally + { + hData.Free(); + } + } + + } + #endregion + + #region Adler + /// + /// Implements a checksum generator that computes the Adler checksum on data + /// + public sealed class AdlerChecksum : ChecksumGeneratorBase + { + #region DLL imports + + [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)] + private static extern uint adler32(uint adler, int data, uint length); + + #endregion + + /// + /// Initializes a new instance of the Adler checksum generator + /// + public AdlerChecksum() : base() {} + + /// + /// Initializes a new instance of the Adler checksum generator with a specified value + /// + /// The value to set the current checksum to + public AdlerChecksum(uint initialValue) : base(initialValue) {} + + /// + /// Updates the current checksum with part of an array of bytes + /// + /// The data to update the checksum with + /// Where in data to start updating + /// The number of bytes from data to use + /// The sum of offset and count is larger than the length of data + /// data is a null reference + /// Offset or count is negative. + public override void Update(byte[] data, int offset, int count) + { + if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException(); + if ((offset+count) > data.Length) throw new ArgumentException(); + GCHandle hData = GCHandle.Alloc(data, GCHandleType.Pinned); + try + { + _current = adler32(_current, hData.AddrOfPinnedObject().ToInt32()+offset, (uint)count); + } + finally + { + hData.Free(); + } + } + + } + #endregion + +} \ No newline at end of file diff --git a/cpukit/zlib/contrib/dotzlib/DotZLib/CircularBuffer.cs b/cpukit/zlib/contrib/dotzlib/DotZLib/CircularBuffer.cs new file mode 100644 index 0000000000..16997e906b --- /dev/null +++ b/cpukit/zlib/contrib/dotzlib/DotZLib/CircularBuffer.cs @@ -0,0 +1,83 @@ +// +// © Copyright Henrik Ravn 2004 +// +// Use, modification and distribution are subject to the Boost Software License, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) +// + +using System; +using System.Diagnostics; + +namespace DotZLib +{ + + /// + /// This class implements a circular buffer + /// + internal class CircularBuffer + { + #region Private data + private int _capacity; + private int _head; + private int _tail; + private int _size; + private byte[] _buffer; + #endregion + + public CircularBuffer(int capacity) + { + Debug.Assert( capacity > 0 ); + _buffer = new byte[capacity]; + _capacity = capacity; + _head = 0; + _tail = 0; + _size = 0; + } + + public int Size { get { return _size; } } + + public int Put(byte[] source, int offset, int count) + { + Debug.Assert( count > 0 ); + int trueCount = Math.Min(count, _capacity - Size); + for (int i = 0; i < trueCount; ++i) + _buffer[(_tail+i) % _capacity] = source[offset+i]; + _tail += trueCount; + _tail %= _capacity; + _size += trueCount; + return trueCount; + } + + public bool Put(byte b) + { + if (Size == _capacity) // no room + return false; + _buffer[_tail++] = b; + _tail %= _capacity; + ++_size; + return true; + } + + public int Get(byte[] destination, int offset, int count) + { + int trueCount = Math.Min(count,Size); + for (int i = 0; i < trueCount; ++i) + destination[offset + i] = _buffer[(_head+i) % _capacity]; + _head += trueCount; + _head %= _capacity; + _size -= trueCount; + return trueCount; + } + + public int Get() + { + if (Size == 0) + return -1; + + int result = (int)_buffer[_head++ % _capacity]; + --_size; + return result; + } + + } +} diff --git a/cpukit/zlib/contrib/dotzlib/DotZLib/CodecBase.cs b/cpukit/zlib/contrib/dotzlib/DotZLib/CodecBase.cs new file mode 100644 index 0000000000..954db7db05 --- /dev/null +++ b/cpukit/zlib/contrib/dotzlib/DotZLib/CodecBase.cs @@ -0,0 +1,198 @@ +// +// © Copyright Henrik Ravn 2004 +// +// Use, modification and distribution are subject to the Boost Software License, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) +// + +using System; +using System.Runtime.InteropServices; + +namespace DotZLib +{ + /// + /// Implements the common functionality needed for all s + /// + public abstract class CodecBase : Codec, IDisposable + { + + #region Data members + + /// + /// Instance of the internal zlib buffer structure that is + /// passed to all functions in the zlib dll + /// + internal ZStream _ztream = new ZStream(); + + /// + /// True if the object instance has been disposed, false otherwise + /// + protected bool _isDisposed = false; + + /// + /// The size of the internal buffers + /// + protected const int kBufferSize = 16384; + + private byte[] _outBuffer = new byte[kBufferSize]; + private byte[] _inBuffer = new byte[kBufferSize]; + + private GCHandle _hInput; + private GCHandle _hOutput; + + private uint _checksum = 0; + + #endregion + + /// + /// Initializes a new instance of the CodeBase class. + /// + public CodecBase() + { + try + { + _hInput = GCHandle.Alloc(_inBuffer, GCHandleType.Pinned); + _hOutput = GCHandle.Alloc(_outBuffer, GCHandleType.Pinned); + } + catch (Exception) + { + CleanUp(false); + throw; + } + } + + + #region Codec Members + + /// + /// Occurs when more processed data are available. + /// + public event DataAvailableHandler DataAvailable; + + /// + /// Fires the event + /// + protected void OnDataAvailable() + { + if (_ztream.total_out > 0) + { + if (DataAvailable != null) + DataAvailable( _outBuffer, 0, (int)_ztream.total_out); + resetOutput(); + } + } + + /// + /// Adds more data to the codec to be processed. + /// + /// Byte array containing the data to be added to the codec + /// Adding data may, or may not, raise the DataAvailable event + public void Add(byte[] data) + { + Add(data,0,data.Length); + } + + /// + /// Adds more data to the codec to be processed. + /// + /// Byte array containing the data to be added to the codec + /// The index of the first byte to add from data + /// The number of bytes to add + /// Adding data may, or may not, raise the DataAvailable event + /// This must be implemented by a derived class + public abstract void Add(byte[] data, int offset, int count); + + /// + /// Finishes up any pending data that needs to be processed and handled. + /// + /// This must be implemented by a derived class + public abstract void Finish(); + + /// + /// Gets the checksum of the data that has been added so far + /// + public uint Checksum { get { return _checksum; } } + + #endregion + + #region Destructor & IDisposable stuff + + /// + /// Destroys this instance + /// + ~CodecBase() + { + CleanUp(false); + } + + /// + /// Releases any unmanaged resources and calls the method of the derived class + /// + public void Dispose() + { + CleanUp(true); + } + + /// + /// Performs any codec specific cleanup + /// + /// This must be implemented by a derived class + protected abstract void CleanUp(); + + // performs the release of the handles and calls the dereived CleanUp() + private void CleanUp(bool isDisposing) + { + if (!_isDisposed) + { + CleanUp(); + if (_hInput.IsAllocated) + _hInput.Free(); + if (_hOutput.IsAllocated) + _hOutput.Free(); + + _isDisposed = true; + } + } + + + #endregion + + #region Helper methods + + /// + /// Copies a number of bytes to the internal codec buffer - ready for proccesing + /// + /// The byte array that contains the data to copy + /// The index of the first byte to copy + /// The number of bytes to copy from data + protected void copyInput(byte[] data, int startIndex, int count) + { + Array.Copy(data, startIndex, _inBuffer,0, count); + _ztream.next_in = _hInput.AddrOfPinnedObject(); + _ztream.total_in = 0; + _ztream.avail_in = (uint)count; + + } + + /// + /// Resets the internal output buffers to a known state - ready for processing + /// + protected void resetOutput() + { + _ztream.total_out = 0; + _ztream.avail_out = kBufferSize; + _ztream.next_out = _hOutput.AddrOfPinnedObject(); + } + + /// + /// Updates the running checksum property + /// + /// The new checksum value + protected void setChecksum(uint newSum) + { + _checksum = newSum; + } + #endregion + + } +} diff --git a/cpukit/zlib/contrib/dotzlib/DotZLib/Deflater.cs b/cpukit/zlib/contrib/dotzlib/DotZLib/Deflater.cs new file mode 100644 index 0000000000..d7b8dcccac --- /dev/null +++ b/cpukit/zlib/contrib/dotzlib/DotZLib/Deflater.cs @@ -0,0 +1,106 @@ +// +// © Copyright Henrik Ravn 2004 +// +// Use, modification and distribution are subject to the Boost Software License, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) +// + +using System; +using System.Diagnostics; +using System.Runtime.InteropServices; + +namespace DotZLib +{ + + /// + /// Implements a data compressor, using the deflate algorithm in the ZLib dll + /// + public sealed class Deflater : CodecBase + { + #region Dll imports + [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl, CharSet=CharSet.Ansi)] + private static extern int deflateInit_(ref ZStream sz, int level, string vs, int size); + + [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)] + private static extern int deflate(ref ZStream sz, int flush); + + [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)] + private static extern int deflateReset(ref ZStream sz); + + [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)] + private static extern int deflateEnd(ref ZStream sz); + #endregion + + /// + /// Constructs an new instance of the Deflater + /// + /// The compression level to use for this Deflater + public Deflater(CompressLevel level) : base() + { + int retval = deflateInit_(ref _ztream, (int)level, Info.Version, Marshal.SizeOf(_ztream)); + if (retval != 0) + throw new ZLibException(retval, "Could not initialize deflater"); + + resetOutput(); + } + + /// + /// Adds more data to the codec to be processed. + /// + /// Byte array containing the data to be added to the codec + /// The index of the first byte to add from data + /// The number of bytes to add + /// Adding data may, or may not, raise the DataAvailable event + public override void Add(byte[] data, int offset, int count) + { + if (data == null) throw new ArgumentNullException(); + if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException(); + if ((offset+count) > data.Length) throw new ArgumentException(); + + int total = count; + int inputIndex = offset; + int err = 0; + + while (err >= 0 && inputIndex < total) + { + copyInput(data, inputIndex, Math.Min(total - inputIndex, kBufferSize)); + while (err >= 0 && _ztream.avail_in > 0) + { + err = deflate(ref _ztream, (int)FlushTypes.None); + if (err == 0) + while (_ztream.avail_out == 0) + { + OnDataAvailable(); + err = deflate(ref _ztream, (int)FlushTypes.None); + } + inputIndex += (int)_ztream.total_in; + } + } + setChecksum( _ztream.adler ); + } + + + /// + /// Finishes up any pending data that needs to be processed and handled. + /// + public override void Finish() + { + int err; + do + { + err = deflate(ref _ztream, (int)FlushTypes.Finish); + OnDataAvailable(); + } + while (err == 0); + setChecksum( _ztream.adler ); + deflateReset(ref _ztream); + resetOutput(); + } + + /// + /// Closes the internal zlib deflate stream + /// + protected override void CleanUp() { deflateEnd(ref _ztream); } + + } +} diff --git a/cpukit/zlib/contrib/dotzlib/DotZLib/DotZLib.cs b/cpukit/zlib/contrib/dotzlib/DotZLib/DotZLib.cs new file mode 100644 index 0000000000..410deb0885 --- /dev/null +++ b/cpukit/zlib/contrib/dotzlib/DotZLib/DotZLib.cs @@ -0,0 +1,288 @@ +// +// © Copyright Henrik Ravn 2004 +// +// Use, modification and distribution are subject to the Boost Software License, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) +// + +using System; +using System.IO; +using System.Runtime.InteropServices; +using System.Text; + + +namespace DotZLib +{ + + #region Internal types + + /// + /// Defines constants for the various flush types used with zlib + /// + internal enum FlushTypes + { + None, Partial, Sync, Full, Finish, Block + } + + #region ZStream structure + // internal mapping of the zlib zstream structure for marshalling + [StructLayoutAttribute(LayoutKind.Sequential, Pack=4, Size=0, CharSet=CharSet.Ansi)] + internal struct ZStream + { + public IntPtr next_in; + public uint avail_in; + public uint total_in; + + public IntPtr next_out; + public uint avail_out; + public uint total_out; + + [MarshalAs(UnmanagedType.LPStr)] + string msg; + uint state; + + uint zalloc; + uint zfree; + uint opaque; + + int data_type; + public uint adler; + uint reserved; + } + + #endregion + + #endregion + + #region Public enums + /// + /// Defines constants for the available compression levels in zlib + /// + public enum CompressLevel : int + { + /// + /// The default compression level with a reasonable compromise between compression and speed + /// + Default = -1, + /// + /// No compression at all. The data are passed straight through. + /// + None = 0, + /// + /// The maximum compression rate available. + /// + Best = 9, + /// + /// The fastest available compression level. + /// + Fastest = 1 + } + #endregion + + #region Exception classes + /// + /// The exception that is thrown when an error occurs on the zlib dll + /// + public class ZLibException : ApplicationException + { + /// + /// Initializes a new instance of the class with a specified + /// error message and error code + /// + /// The zlib error code that caused the exception + /// A message that (hopefully) describes the error + public ZLibException(int errorCode, string msg) : base(String.Format("ZLib error {0} {1}", errorCode, msg)) + { + } + + /// + /// Initializes a new instance of the class with a specified + /// error code + /// + /// The zlib error code that caused the exception + public ZLibException(int errorCode) : base(String.Format("ZLib error {0}", errorCode)) + { + } + } + #endregion + + #region Interfaces + + /// + /// Declares methods and properties that enables a running checksum to be calculated + /// + public interface ChecksumGenerator + { + /// + /// Gets the current value of the checksum + /// + uint Value { get; } + + /// + /// Clears the current checksum to 0 + /// + void Reset(); + + /// + /// Updates the current checksum with an array of bytes + /// + /// The data to update the checksum with + void Update(byte[] data); + + /// + /// Updates the current checksum with part of an array of bytes + /// + /// The data to update the checksum with + /// Where in data to start updating + /// The number of bytes from data to use + /// The sum of offset and count is larger than the length of data + /// data is a null reference + /// Offset or count is negative. + void Update(byte[] data, int offset, int count); + + /// + /// Updates the current checksum with the data from a string + /// + /// The string to update the checksum with + /// The characters in the string are converted by the UTF-8 encoding + void Update(string data); + + /// + /// Updates the current checksum with the data from a string, using a specific encoding + /// + /// The string to update the checksum with + /// The encoding to use + void Update(string data, Encoding encoding); + } + + + /// + /// Represents the method that will be called from a codec when new data + /// are available. + /// + /// The byte array containing the processed data + /// The index of the first processed byte in data + /// The number of processed bytes available + /// On return from this method, the data may be overwritten, so grab it while you can. + /// You cannot assume that startIndex will be zero. + /// + public delegate void DataAvailableHandler(byte[] data, int startIndex, int count); + + /// + /// Declares methods and events for implementing compressors/decompressors + /// + public interface Codec + { + /// + /// Occurs when more processed data are available. + /// + event DataAvailableHandler DataAvailable; + + /// + /// Adds more data to the codec to be processed. + /// + /// Byte array containing the data to be added to the codec + /// Adding data may, or may not, raise the DataAvailable event + void Add(byte[] data); + + /// + /// Adds more data to the codec to be processed. + /// + /// Byte array containing the data to be added to the codec + /// The index of the first byte to add from data + /// The number of bytes to add + /// Adding data may, or may not, raise the DataAvailable event + void Add(byte[] data, int offset, int count); + + /// + /// Finishes up any pending data that needs to be processed and handled. + /// + void Finish(); + + /// + /// Gets the checksum of the data that has been added so far + /// + uint Checksum { get; } + + + } + + #endregion + + #region Classes + /// + /// Encapsulates general information about the ZLib library + /// + public class Info + { + #region DLL imports + [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)] + private static extern uint zlibCompileFlags(); + + [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)] + private static extern string zlibVersion(); + #endregion + + #region Private stuff + private uint _flags; + + // helper function that unpacks a bitsize mask + private static int bitSize(uint bits) + { + switch (bits) + { + case 0: return 16; + case 1: return 32; + case 2: return 64; + } + return -1; + } + #endregion + + /// + /// Constructs an instance of the Info class. + /// + public Info() + { + _flags = zlibCompileFlags(); + } + + /// + /// True if the library is compiled with debug info + /// + public bool HasDebugInfo { get { return 0 != (_flags & 0x100); } } + + /// + /// True if the library is compiled with assembly optimizations + /// + public bool UsesAssemblyCode { get { return 0 != (_flags & 0x200); } } + + /// + /// Gets the size of the unsigned int that was compiled into Zlib + /// + public int SizeOfUInt { get { return bitSize(_flags & 3); } } + + /// + /// Gets the size of the unsigned long that was compiled into Zlib + /// + public int SizeOfULong { get { return bitSize((_flags >> 2) & 3); } } + + /// + /// Gets the size of the pointers that were compiled into Zlib + /// + public int SizeOfPointer { get { return bitSize((_flags >> 4) & 3); } } + + /// + /// Gets the size of the z_off_t type that was compiled into Zlib + /// + public int SizeOfOffset { get { return bitSize((_flags >> 6) & 3); } } + + /// + /// Gets the version of ZLib as a string, e.g. "1.2.1" + /// + public static string Version { get { return zlibVersion(); } } + } + + #endregion + +} diff --git a/cpukit/zlib/contrib/dotzlib/DotZLib/DotZLib.csproj b/cpukit/zlib/contrib/dotzlib/DotZLib/DotZLib.csproj new file mode 100644 index 0000000000..71eeb8590a --- /dev/null +++ b/cpukit/zlib/contrib/dotzlib/DotZLib/DotZLib.csproj @@ -0,0 +1,141 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/cpukit/zlib/contrib/dotzlib/DotZLib/GZipStream.cs b/cpukit/zlib/contrib/dotzlib/DotZLib/GZipStream.cs new file mode 100644 index 0000000000..f861675b51 --- /dev/null +++ b/cpukit/zlib/contrib/dotzlib/DotZLib/GZipStream.cs @@ -0,0 +1,301 @@ +// +// © Copyright Henrik Ravn 2004 +// +// Use, modification and distribution are subject to the Boost Software License, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) +// + +using System; +using System.IO; +using System.Runtime.InteropServices; + +namespace DotZLib +{ + /// + /// Implements a compressed , in GZip (.gz) format. + /// + public class GZipStream : Stream, IDisposable + { + #region Dll Imports + [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl, CharSet=CharSet.Ansi)] + private static extern IntPtr gzopen(string name, string mode); + + [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)] + private static extern int gzclose(IntPtr gzFile); + + [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)] + private static extern int gzwrite(IntPtr gzFile, int data, int length); + + [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)] + private static extern int gzread(IntPtr gzFile, int data, int length); + + [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)] + private static extern int gzgetc(IntPtr gzFile); + + [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)] + private static extern int gzputc(IntPtr gzFile, int c); + + #endregion + + #region Private data + private IntPtr _gzFile; + private bool _isDisposed = false; + private bool _isWriting; + #endregion + + #region Constructors + /// + /// Creates a new file as a writeable GZipStream + /// + /// The name of the compressed file to create + /// The compression level to use when adding data + /// If an error occurred in the internal zlib function + public GZipStream(string fileName, CompressLevel level) + { + _isWriting = true; + _gzFile = gzopen(fileName, String.Format("wb{0}", (int)level)); + if (_gzFile == IntPtr.Zero) + throw new ZLibException(-1, "Could not open " + fileName); + } + + /// + /// Opens an existing file as a readable GZipStream + /// + /// The name of the file to open + /// If an error occurred in the internal zlib function + public GZipStream(string fileName) + { + _isWriting = false; + _gzFile = gzopen(fileName, "rb"); + if (_gzFile == IntPtr.Zero) + throw new ZLibException(-1, "Could not open " + fileName); + + } + #endregion + + #region Access properties + /// + /// Returns true of this stream can be read from, false otherwise + /// + public override bool CanRead + { + get + { + return !_isWriting; + } + } + + + /// + /// Returns false. + /// + public override bool CanSeek + { + get + { + return false; + } + } + + /// + /// Returns true if this tsream is writeable, false otherwise + /// + public override bool CanWrite + { + get + { + return _isWriting; + } + } + #endregion + + #region Destructor & IDispose stuff + + /// + /// Destroys this instance + /// + ~GZipStream() + { + cleanUp(false); + } + + /// + /// Closes the external file handle + /// + public void Dispose() + { + cleanUp(true); + } + + // Does the actual closing of the file handle. + private void cleanUp(bool isDisposing) + { + if (!_isDisposed) + { + gzclose(_gzFile); + _isDisposed = true; + } + } + #endregion + + #region Basic reading and writing + /// + /// Attempts to read a number of bytes from the stream. + /// + /// The destination data buffer + /// The index of the first destination byte in buffer + /// The number of bytes requested + /// The number of bytes read + /// If buffer is null + /// If count or offset are negative + /// If offset + count is > buffer.Length + /// If this stream is not readable. + /// If this stream has been disposed. + public override int Read(byte[] buffer, int offset, int count) + { + if (!CanRead) throw new NotSupportedException(); + if (buffer == null) throw new ArgumentNullException(); + if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException(); + if ((offset+count) > buffer.Length) throw new ArgumentException(); + if (_isDisposed) throw new ObjectDisposedException("GZipStream"); + + GCHandle h = GCHandle.Alloc(buffer, GCHandleType.Pinned); + int result; + try + { + result = gzread(_gzFile, h.AddrOfPinnedObject().ToInt32() + offset, count); + if (result < 0) + throw new IOException(); + } + finally + { + h.Free(); + } + return result; + } + + /// + /// Attempts to read a single byte from the stream. + /// + /// The byte that was read, or -1 in case of error or End-Of-File + public override int ReadByte() + { + if (!CanRead) throw new NotSupportedException(); + if (_isDisposed) throw new ObjectDisposedException("GZipStream"); + return gzgetc(_gzFile); + } + + /// + /// Writes a number of bytes to the stream + /// + /// + /// + /// + /// If buffer is null + /// If count or offset are negative + /// If offset + count is > buffer.Length + /// If this stream is not writeable. + /// If this stream has been disposed. + public override void Write(byte[] buffer, int offset, int count) + { + if (!CanWrite) throw new NotSupportedException(); + if (buffer == null) throw new ArgumentNullException(); + if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException(); + if ((offset+count) > buffer.Length) throw new ArgumentException(); + if (_isDisposed) throw new ObjectDisposedException("GZipStream"); + + GCHandle h = GCHandle.Alloc(buffer, GCHandleType.Pinned); + try + { + int result = gzwrite(_gzFile, h.AddrOfPinnedObject().ToInt32() + offset, count); + if (result < 0) + throw new IOException(); + } + finally + { + h.Free(); + } + } + + /// + /// Writes a single byte to the stream + /// + /// The byte to add to the stream. + /// If this stream is not writeable. + /// If this stream has been disposed. + public override void WriteByte(byte value) + { + if (!CanWrite) throw new NotSupportedException(); + if (_isDisposed) throw new ObjectDisposedException("GZipStream"); + + int result = gzputc(_gzFile, (int)value); + if (result < 0) + throw new IOException(); + } + #endregion + + #region Position & length stuff + /// + /// Not supported. + /// + /// + /// Always thrown + public override void SetLength(long value) + { + throw new NotSupportedException(); + } + + /// + /// Not suppported. + /// + /// + /// + /// + /// Always thrown + public override long Seek(long offset, SeekOrigin origin) + { + throw new NotSupportedException(); + } + + /// + /// Flushes the GZipStream. + /// + /// In this implementation, this method does nothing. This is because excessive + /// flushing may degrade the achievable compression rates. + public override void Flush() + { + // left empty on purpose + } + + /// + /// Gets/sets the current position in the GZipStream. Not suppported. + /// + /// In this implementation this property is not supported + /// Always thrown + public override long Position + { + get + { + throw new NotSupportedException(); + } + set + { + throw new NotSupportedException(); + } + } + + /// + /// Gets the size of the stream. Not suppported. + /// + /// In this implementation this property is not supported + /// Always thrown + public override long Length + { + get + { + throw new NotSupportedException(); + } + } + #endregion + } +} diff --git a/cpukit/zlib/contrib/dotzlib/DotZLib/Inflater.cs b/cpukit/zlib/contrib/dotzlib/DotZLib/Inflater.cs new file mode 100644 index 0000000000..4e60cda078 --- /dev/null +++ b/cpukit/zlib/contrib/dotzlib/DotZLib/Inflater.cs @@ -0,0 +1,105 @@ +// +// © Copyright Henrik Ravn 2004 +// +// Use, modification and distribution are subject to the Boost Software License, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) +// + +using System; +using System.Diagnostics; +using System.Runtime.InteropServices; + +namespace DotZLib +{ + + /// + /// Implements a data decompressor, using the inflate algorithm in the ZLib dll + /// + public class Inflater : CodecBase + { + #region Dll imports + [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl, CharSet=CharSet.Ansi)] + private static extern int inflateInit_(ref ZStream sz, string vs, int size); + + [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)] + private static extern int inflate(ref ZStream sz, int flush); + + [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)] + private static extern int inflateReset(ref ZStream sz); + + [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)] + private static extern int inflateEnd(ref ZStream sz); + #endregion + + /// + /// Constructs an new instance of the Inflater + /// + public Inflater() : base() + { + int retval = inflateInit_(ref _ztream, Info.Version, Marshal.SizeOf(_ztream)); + if (retval != 0) + throw new ZLibException(retval, "Could not initialize inflater"); + + resetOutput(); + } + + + /// + /// Adds more data to the codec to be processed. + /// + /// Byte array containing the data to be added to the codec + /// The index of the first byte to add from data + /// The number of bytes to add + /// Adding data may, or may not, raise the DataAvailable event + public override void Add(byte[] data, int offset, int count) + { + if (data == null) throw new ArgumentNullException(); + if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException(); + if ((offset+count) > data.Length) throw new ArgumentException(); + + int total = count; + int inputIndex = offset; + int err = 0; + + while (err >= 0 && inputIndex < total) + { + copyInput(data, inputIndex, Math.Min(total - inputIndex, kBufferSize)); + err = inflate(ref _ztream, (int)FlushTypes.None); + if (err == 0) + while (_ztream.avail_out == 0) + { + OnDataAvailable(); + err = inflate(ref _ztream, (int)FlushTypes.None); + } + + inputIndex += (int)_ztream.total_in; + } + setChecksum( _ztream.adler ); + } + + + /// + /// Finishes up any pending data that needs to be processed and handled. + /// + public override void Finish() + { + int err; + do + { + err = inflate(ref _ztream, (int)FlushTypes.Finish); + OnDataAvailable(); + } + while (err == 0); + setChecksum( _ztream.adler ); + inflateReset(ref _ztream); + resetOutput(); + } + + /// + /// Closes the internal zlib inflate stream + /// + protected override void CleanUp() { inflateEnd(ref _ztream); } + + + } +} diff --git a/cpukit/zlib/contrib/dotzlib/DotZLib/UnitTests.cs b/cpukit/zlib/contrib/dotzlib/DotZLib/UnitTests.cs new file mode 100644 index 0000000000..2f374b6e30 --- /dev/null +++ b/cpukit/zlib/contrib/dotzlib/DotZLib/UnitTests.cs @@ -0,0 +1,274 @@ +// +// © Copyright Henrik Ravn 2004 +// +// Use, modification and distribution are subject to the Boost Software License, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) +// + +using System; +using System.Collections; +using System.IO; + +// uncomment the define below to include unit tests +//#define nunit +#if nunit +using NUnit.Framework; + +// Unit tests for the DotZLib class library +// ---------------------------------------- +// +// Use this with NUnit 2 from http://www.nunit.org +// + +namespace DotZLibTests +{ + using DotZLib; + + // helper methods + internal class Utils + { + public static bool byteArrEqual( byte[] lhs, byte[] rhs ) + { + if (lhs.Length != rhs.Length) + return false; + for (int i = lhs.Length-1; i >= 0; --i) + if (lhs[i] != rhs[i]) + return false; + return true; + } + + } + + + [TestFixture] + public class CircBufferTests + { + #region Circular buffer tests + [Test] + public void SinglePutGet() + { + CircularBuffer buf = new CircularBuffer(10); + Assert.AreEqual( 0, buf.Size ); + Assert.AreEqual( -1, buf.Get() ); + + Assert.IsTrue(buf.Put( 1 )); + Assert.AreEqual( 1, buf.Size ); + Assert.AreEqual( 1, buf.Get() ); + Assert.AreEqual( 0, buf.Size ); + Assert.AreEqual( -1, buf.Get() ); + } + + [Test] + public void BlockPutGet() + { + CircularBuffer buf = new CircularBuffer(10); + byte[] arr = {1,2,3,4,5,6,7,8,9,10}; + Assert.AreEqual( 10, buf.Put(arr,0,10) ); + Assert.AreEqual( 10, buf.Size ); + Assert.IsFalse( buf.Put(11) ); + Assert.AreEqual( 1, buf.Get() ); + Assert.IsTrue( buf.Put(11) ); + + byte[] arr2 = (byte[])arr.Clone(); + Assert.AreEqual( 9, buf.Get(arr2,1,9) ); + Assert.IsTrue( Utils.byteArrEqual(arr,arr2) ); + } + + #endregion + } + + [TestFixture] + public class ChecksumTests + { + #region CRC32 Tests + [Test] + public void CRC32_Null() + { + CRC32Checksum crc32 = new CRC32Checksum(); + Assert.AreEqual( 0, crc32.Value ); + + crc32 = new CRC32Checksum(1); + Assert.AreEqual( 1, crc32.Value ); + + crc32 = new CRC32Checksum(556); + Assert.AreEqual( 556, crc32.Value ); + } + + [Test] + public void CRC32_Data() + { + CRC32Checksum crc32 = new CRC32Checksum(); + byte[] data = { 1,2,3,4,5,6,7 }; + crc32.Update(data); + Assert.AreEqual( 0x70e46888, crc32.Value ); + + crc32 = new CRC32Checksum(); + crc32.Update("penguin"); + Assert.AreEqual( 0x0e5c1a120, crc32.Value ); + + crc32 = new CRC32Checksum(1); + crc32.Update("penguin"); + Assert.AreEqual(0x43b6aa94, crc32.Value); + + } + #endregion + + #region Adler tests + + [Test] + public void Adler_Null() + { + AdlerChecksum adler = new AdlerChecksum(); + Assert.AreEqual(0, adler.Value); + + adler = new AdlerChecksum(1); + Assert.AreEqual( 1, adler.Value ); + + adler = new AdlerChecksum(556); + Assert.AreEqual( 556, adler.Value ); + } + + [Test] + public void Adler_Data() + { + AdlerChecksum adler = new AdlerChecksum(1); + byte[] data = { 1,2,3,4,5,6,7 }; + adler.Update(data); + Assert.AreEqual( 0x5b001d, adler.Value ); + + adler = new AdlerChecksum(); + adler.Update("penguin"); + Assert.AreEqual(0x0bcf02f6, adler.Value ); + + adler = new AdlerChecksum(1); + adler.Update("penguin"); + Assert.AreEqual(0x0bd602f7, adler.Value); + + } + #endregion + } + + [TestFixture] + public class InfoTests + { + #region Info tests + [Test] + public void Info_Version() + { + Info info = new Info(); + Assert.AreEqual("1.2.2", Info.Version); + Assert.AreEqual(32, info.SizeOfUInt); + Assert.AreEqual(32, info.SizeOfULong); + Assert.AreEqual(32, info.SizeOfPointer); + Assert.AreEqual(32, info.SizeOfOffset); + } + #endregion + } + + [TestFixture] + public class DeflateInflateTests + { + #region Deflate tests + [Test] + public void Deflate_Init() + { + using (Deflater def = new Deflater(CompressLevel.Default)) + { + } + } + + private ArrayList compressedData = new ArrayList(); + private uint adler1; + + private ArrayList uncompressedData = new ArrayList(); + private uint adler2; + + public void CDataAvail(byte[] data, int startIndex, int count) + { + for (int i = 0; i < count; ++i) + compressedData.Add(data[i+startIndex]); + } + + [Test] + public void Deflate_Compress() + { + compressedData.Clear(); + + byte[] testData = new byte[35000]; + for (int i = 0; i < testData.Length; ++i) + testData[i] = 5; + + using (Deflater def = new Deflater((CompressLevel)5)) + { + def.DataAvailable += new DataAvailableHandler(CDataAvail); + def.Add(testData); + def.Finish(); + adler1 = def.Checksum; + } + } + #endregion + + #region Inflate tests + [Test] + public void Inflate_Init() + { + using (Inflater inf = new Inflater()) + { + } + } + + private void DDataAvail(byte[] data, int startIndex, int count) + { + for (int i = 0; i < count; ++i) + uncompressedData.Add(data[i+startIndex]); + } + + [Test] + public void Inflate_Expand() + { + uncompressedData.Clear(); + + using (Inflater inf = new Inflater()) + { + inf.DataAvailable += new DataAvailableHandler(DDataAvail); + inf.Add((byte[])compressedData.ToArray(typeof(byte))); + inf.Finish(); + adler2 = inf.Checksum; + } + Assert.AreEqual( adler1, adler2 ); + } + #endregion + } + + [TestFixture] + public class GZipStreamTests + { + #region GZipStream test + [Test] + public void GZipStream_WriteRead() + { + using (GZipStream gzOut = new GZipStream("gzstream.gz", CompressLevel.Best)) + { + BinaryWriter writer = new BinaryWriter(gzOut); + writer.Write("hi there"); + writer.Write(Math.PI); + writer.Write(42); + } + + using (GZipStream gzIn = new GZipStream("gzstream.gz")) + { + BinaryReader reader = new BinaryReader(gzIn); + string s = reader.ReadString(); + Assert.AreEqual("hi there",s); + double d = reader.ReadDouble(); + Assert.AreEqual(Math.PI, d); + int i = reader.ReadInt32(); + Assert.AreEqual(42,i); + } + + } + #endregion + } +} + +#endif \ No newline at end of file diff --git a/cpukit/zlib/contrib/dotzlib/LICENSE_1_0.txt b/cpukit/zlib/contrib/dotzlib/LICENSE_1_0.txt new file mode 100644 index 0000000000..30aac2cf47 --- /dev/null +++ b/cpukit/zlib/contrib/dotzlib/LICENSE_1_0.txt @@ -0,0 +1,23 @@ +Boost Software License - Version 1.0 - August 17th, 2003 + +Permission is hereby granted, free of charge, to any person or organization +obtaining a copy of the software and accompanying documentation covered by +this license (the "Software") to use, reproduce, display, distribute, +execute, and transmit the Software, and to prepare derivative works of the +Software, and to permit third-parties to whom the Software is furnished to +do so, all subject to the following: + +The copyright notices in the Software and this entire statement, including +the above license grant, this restriction and the following disclaimer, +must be included in all copies of the Software, in whole or in part, and +all derivative works of the Software, unless such copies or derivative +works are solely in the form of machine-executable object code generated by +a source language processor. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT +SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE +FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE, +ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER +DEALINGS IN THE SOFTWARE. \ No newline at end of file diff --git a/cpukit/zlib/contrib/dotzlib/readme.txt b/cpukit/zlib/contrib/dotzlib/readme.txt new file mode 100644 index 0000000000..210f4b0019 --- /dev/null +++ b/cpukit/zlib/contrib/dotzlib/readme.txt @@ -0,0 +1,58 @@ +This directory contains a .Net wrapper class library for the ZLib1.dll + +The wrapper includes support for inflating/deflating memory buffers, +.Net streaming wrappers for the gz streams part of zlib, and wrappers +for the checksum parts of zlib. See DotZLib/UnitTests.cs for examples. + +Directory structure: +-------------------- + +LICENSE_1_0.txt - License file. +readme.txt - This file. +DotZLib.chm - Class library documentation +DotZLib.build - NAnt build file +DotZLib.sln - Microsoft Visual Studio 2003 solution file + +DotZLib\*.cs - Source files for the class library + +Unit tests: +----------- +The file DotZLib/UnitTests.cs contains unit tests for use with NUnit 2.1 or higher. +To include unit tests in the build, define nunit before building. + + +Build instructions: +------------------- + +1. Using Visual Studio.Net 2003: + Open DotZLib.sln in VS.Net and build from there. Output file (DotZLib.dll) + will be found ./DotZLib/bin/release or ./DotZLib/bin/debug, depending on + you are building the release or debug version of the library. Check + DotZLib/UnitTests.cs for instructions on how to include unit tests in the + build. + +2. Using NAnt: + Open a command prompt with access to the build environment and run nant + in the same directory as the DotZLib.build file. + You can define 2 properties on the nant command-line to control the build: + debug={true|false} to toggle between release/debug builds (default=true). + nunit={true|false} to include or esclude unit tests (default=true). + Also the target clean will remove binaries. + Output file (DotZLib.dll) will be found in either ./DotZLib/bin/release + or ./DotZLib/bin/debug, depending on whether you are building the release + or debug version of the library. + + Examples: + nant -D:debug=false -D:nunit=false + will build a release mode version of the library without unit tests. + nant + will build a debug version of the library with unit tests + nant clean + will remove all previously built files. + + +--------------------------------- +Copyright (c) Henrik Ravn 2004 + +Use, modification and distribution are subject to the Boost Software License, Version 1.0. +(See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) diff --git a/cpukit/zlib/contrib/infback9/README b/cpukit/zlib/contrib/infback9/README new file mode 100644 index 0000000000..e75ed13294 --- /dev/null +++ b/cpukit/zlib/contrib/infback9/README @@ -0,0 +1 @@ +See infback9.h for what this is and how to use it. diff --git a/cpukit/zlib/contrib/infback9/infback9.c b/cpukit/zlib/contrib/infback9/infback9.c new file mode 100644 index 0000000000..f5ddde67da --- /dev/null +++ b/cpukit/zlib/contrib/infback9/infback9.c @@ -0,0 +1,608 @@ +/* infback9.c -- inflate deflate64 data using a call-back interface + * Copyright (C) 1995-2003 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +#include "zutil.h" +#include "infback9.h" +#include "inftree9.h" +#include "inflate9.h" + +#define WSIZE 65536UL + +/* + strm provides memory allocation functions in zalloc and zfree, or + Z_NULL to use the library memory allocation functions. + + window is a user-supplied window and output buffer that is 64K bytes. + */ +int ZEXPORT inflateBack9Init_(strm, window, version, stream_size) +z_stream FAR *strm; +unsigned char FAR *window; +const char *version; +int stream_size; +{ + struct inflate_state FAR *state; + + if (version == Z_NULL || version[0] != ZLIB_VERSION[0] || + stream_size != (int)(sizeof(z_stream))) + return Z_VERSION_ERROR; + if (strm == Z_NULL || window == Z_NULL) + return Z_STREAM_ERROR; + strm->msg = Z_NULL; /* in case we return an error */ + if (strm->zalloc == (alloc_func)0) { + strm->zalloc = zcalloc; + strm->opaque = (voidpf)0; + } + if (strm->zfree == (free_func)0) strm->zfree = zcfree; + state = (struct inflate_state FAR *)ZALLOC(strm, 1, + sizeof(struct inflate_state)); + if (state == Z_NULL) return Z_MEM_ERROR; + Tracev((stderr, "inflate: allocated\n")); + strm->state = (voidpf)state; + state->window = window; + return Z_OK; +} + +/* + Build and output length and distance decoding tables for fixed code + decoding. + */ +#ifdef MAKEFIXED +#include + +void makefixed9(void) +{ + unsigned sym, bits, low, size; + code *next, *lenfix, *distfix; + struct inflate_state state; + code fixed[544]; + + /* literal/length table */ + sym = 0; + while (sym < 144) state.lens[sym++] = 8; + while (sym < 256) state.lens[sym++] = 9; + while (sym < 280) state.lens[sym++] = 7; + while (sym < 288) state.lens[sym++] = 8; + next = fixed; + lenfix = next; + bits = 9; + inflate_table9(LENS, state.lens, 288, &(next), &(bits), state.work); + + /* distance table */ + sym = 0; + while (sym < 32) state.lens[sym++] = 5; + distfix = next; + bits = 5; + inflate_table9(DISTS, state.lens, 32, &(next), &(bits), state.work); + + /* write tables */ + puts(" /* inffix9.h -- table for decoding deflate64 fixed codes"); + puts(" * Generated automatically by makefixed9()."); + puts(" */"); + puts(""); + puts(" /* WARNING: this file should *not* be used by applications."); + puts(" It is part of the implementation of this library and is"); + puts(" subject to change. Applications should only use zlib.h."); + puts(" */"); + puts(""); + size = 1U << 9; + printf(" static const code lenfix[%u] = {", size); + low = 0; + for (;;) { + if ((low % 6) == 0) printf("\n "); + printf("{%u,%u,%d}", lenfix[low].op, lenfix[low].bits, + lenfix[low].val); + if (++low == size) break; + putchar(','); + } + puts("\n };"); + size = 1U << 5; + printf("\n static const code distfix[%u] = {", size); + low = 0; + for (;;) { + if ((low % 5) == 0) printf("\n "); + printf("{%u,%u,%d}", distfix[low].op, distfix[low].bits, + distfix[low].val); + if (++low == size) break; + putchar(','); + } + puts("\n };"); +} +#endif /* MAKEFIXED */ + +/* Macros for inflateBack(): */ + +/* Clear the input bit accumulator */ +#define INITBITS() \ + do { \ + hold = 0; \ + bits = 0; \ + } while (0) + +/* Assure that some input is available. If input is requested, but denied, + then return a Z_BUF_ERROR from inflateBack(). */ +#define PULL() \ + do { \ + if (have == 0) { \ + have = in(in_desc, &next); \ + if (have == 0) { \ + next = Z_NULL; \ + ret = Z_BUF_ERROR; \ + goto inf_leave; \ + } \ + } \ + } while (0) + +/* Get a byte of input into the bit accumulator, or return from inflateBack() + with an error if there is no input available. */ +#define PULLBYTE() \ + do { \ + PULL(); \ + have--; \ + hold += (unsigned long)(*next++) << bits; \ + bits += 8; \ + } while (0) + +/* Assure that there are at least n bits in the bit accumulator. If there is + not enough available input to do that, then return from inflateBack() with + an error. */ +#define NEEDBITS(n) \ + do { \ + while (bits < (unsigned)(n)) \ + PULLBYTE(); \ + } while (0) + +/* Return the low n bits of the bit accumulator (n <= 16) */ +#define BITS(n) \ + ((unsigned)hold & ((1U << (n)) - 1)) + +/* Remove n bits from the bit accumulator */ +#define DROPBITS(n) \ + do { \ + hold >>= (n); \ + bits -= (unsigned)(n); \ + } while (0) + +/* Remove zero to seven bits as needed to go to a byte boundary */ +#define BYTEBITS() \ + do { \ + hold >>= bits & 7; \ + bits -= bits & 7; \ + } while (0) + +/* Assure that some output space is available, by writing out the window + if it's full. If the write fails, return from inflateBack() with a + Z_BUF_ERROR. */ +#define ROOM() \ + do { \ + if (left == 0) { \ + put = window; \ + left = WSIZE; \ + wrap = 1; \ + if (out(out_desc, put, (unsigned)left)) { \ + ret = Z_BUF_ERROR; \ + goto inf_leave; \ + } \ + } \ + } while (0) + +/* + strm provides the memory allocation functions and window buffer on input, + and provides information on the unused input on return. For Z_DATA_ERROR + returns, strm will also provide an error message. + + in() and out() are the call-back input and output functions. When + inflateBack() needs more input, it calls in(). When inflateBack() has + filled the window with output, or when it completes with data in the + window, it calls out() to write out the data. The application must not + change the provided input until in() is called again or inflateBack() + returns. The application must not change the window/output buffer until + inflateBack() returns. + + in() and out() are called with a descriptor parameter provided in the + inflateBack() call. This parameter can be a structure that provides the + information required to do the read or write, as well as accumulated + information on the input and output such as totals and check values. + + in() should return zero on failure. out() should return non-zero on + failure. If either in() or out() fails, than inflateBack() returns a + Z_BUF_ERROR. strm->next_in can be checked for Z_NULL to see whether it + was in() or out() that caused in the error. Otherwise, inflateBack() + returns Z_STREAM_END on success, Z_DATA_ERROR for an deflate format + error, or Z_MEM_ERROR if it could not allocate memory for the state. + inflateBack() can also return Z_STREAM_ERROR if the input parameters + are not correct, i.e. strm is Z_NULL or the state was not initialized. + */ +int ZEXPORT inflateBack9(strm, in, in_desc, out, out_desc) +z_stream FAR *strm; +in_func in; +void FAR *in_desc; +out_func out; +void FAR *out_desc; +{ + struct inflate_state FAR *state; + unsigned char FAR *next; /* next input */ + unsigned char FAR *put; /* next output */ + unsigned have; /* available input */ + unsigned long left; /* available output */ + inflate_mode mode; /* current inflate mode */ + int lastblock; /* true if processing last block */ + int wrap; /* true if the window has wrapped */ + unsigned long write; /* window write index */ + unsigned char FAR *window; /* allocated sliding window, if needed */ + unsigned long hold; /* bit buffer */ + unsigned bits; /* bits in bit buffer */ + unsigned extra; /* extra bits needed */ + unsigned long length; /* literal or length of data to copy */ + unsigned long offset; /* distance back to copy string from */ + unsigned long copy; /* number of stored or match bytes to copy */ + unsigned char FAR *from; /* where to copy match bytes from */ + code const FAR *lencode; /* starting table for length/literal codes */ + code const FAR *distcode; /* starting table for distance codes */ + unsigned lenbits; /* index bits for lencode */ + unsigned distbits; /* index bits for distcode */ + code this; /* current decoding table entry */ + code last; /* parent table entry */ + unsigned len; /* length to copy for repeats, bits to drop */ + int ret; /* return code */ + static const unsigned short order[19] = /* permutation of code lengths */ + {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15}; +#include "inffix9.h" + + /* Check that the strm exists and that the state was initialized */ + if (strm == Z_NULL || strm->state == Z_NULL) + return Z_STREAM_ERROR; + state = (struct inflate_state FAR *)strm->state; + + /* Reset the state */ + strm->msg = Z_NULL; + mode = TYPE; + lastblock = 0; + write = 0; + wrap = 0; + window = state->window; + next = strm->next_in; + have = next != Z_NULL ? strm->avail_in : 0; + hold = 0; + bits = 0; + put = window; + left = WSIZE; + lencode = Z_NULL; + distcode = Z_NULL; + + /* Inflate until end of block marked as last */ + for (;;) + switch (mode) { + case TYPE: + /* determine and dispatch block type */ + if (lastblock) { + BYTEBITS(); + mode = DONE; + break; + } + NEEDBITS(3); + lastblock = BITS(1); + DROPBITS(1); + switch (BITS(2)) { + case 0: /* stored block */ + Tracev((stderr, "inflate: stored block%s\n", + lastblock ? " (last)" : "")); + mode = STORED; + break; + case 1: /* fixed block */ + lencode = lenfix; + lenbits = 9; + distcode = distfix; + distbits = 5; + Tracev((stderr, "inflate: fixed codes block%s\n", + lastblock ? " (last)" : "")); + mode = LEN; /* decode codes */ + break; + case 2: /* dynamic block */ + Tracev((stderr, "inflate: dynamic codes block%s\n", + lastblock ? " (last)" : "")); + mode = TABLE; + break; + case 3: + strm->msg = (char *)"invalid block type"; + mode = BAD; + } + DROPBITS(2); + break; + + case STORED: + /* get and verify stored block length */ + BYTEBITS(); /* go to byte boundary */ + NEEDBITS(32); + if ((hold & 0xffff) != ((hold >> 16) ^ 0xffff)) { + strm->msg = (char *)"invalid stored block lengths"; + mode = BAD; + break; + } + length = (unsigned)hold & 0xffff; + Tracev((stderr, "inflate: stored length %lu\n", + length)); + INITBITS(); + + /* copy stored block from input to output */ + while (length != 0) { + copy = length; + PULL(); + ROOM(); + if (copy > have) copy = have; + if (copy > left) copy = left; + zmemcpy(put, next, copy); + have -= copy; + next += copy; + left -= copy; + put += copy; + length -= copy; + } + Tracev((stderr, "inflate: stored end\n")); + mode = TYPE; + break; + + case TABLE: + /* get dynamic table entries descriptor */ + NEEDBITS(14); + state->nlen = BITS(5) + 257; + DROPBITS(5); + state->ndist = BITS(5) + 1; + DROPBITS(5); + state->ncode = BITS(4) + 4; + DROPBITS(4); + if (state->nlen > 286) { + strm->msg = (char *)"too many length symbols"; + mode = BAD; + break; + } + Tracev((stderr, "inflate: table sizes ok\n")); + + /* get code length code lengths (not a typo) */ + state->have = 0; + while (state->have < state->ncode) { + NEEDBITS(3); + state->lens[order[state->have++]] = (unsigned short)BITS(3); + DROPBITS(3); + } + while (state->have < 19) + state->lens[order[state->have++]] = 0; + state->next = state->codes; + lencode = (code const FAR *)(state->next); + lenbits = 7; + ret = inflate_table9(CODES, state->lens, 19, &(state->next), + &(lenbits), state->work); + if (ret) { + strm->msg = (char *)"invalid code lengths set"; + mode = BAD; + break; + } + Tracev((stderr, "inflate: code lengths ok\n")); + + /* get length and distance code code lengths */ + state->have = 0; + while (state->have < state->nlen + state->ndist) { + for (;;) { + this = lencode[BITS(lenbits)]; + if ((unsigned)(this.bits) <= bits) break; + PULLBYTE(); + } + if (this.val < 16) { + NEEDBITS(this.bits); + DROPBITS(this.bits); + state->lens[state->have++] = this.val; + } + else { + if (this.val == 16) { + NEEDBITS(this.bits + 2); + DROPBITS(this.bits); + if (state->have == 0) { + strm->msg = (char *)"invalid bit length repeat"; + mode = BAD; + break; + } + len = (unsigned)(state->lens[state->have - 1]); + copy = 3 + BITS(2); + DROPBITS(2); + } + else if (this.val == 17) { + NEEDBITS(this.bits + 3); + DROPBITS(this.bits); + len = 0; + copy = 3 + BITS(3); + DROPBITS(3); + } + else { + NEEDBITS(this.bits + 7); + DROPBITS(this.bits); + len = 0; + copy = 11 + BITS(7); + DROPBITS(7); + } + if (state->have + copy > state->nlen + state->ndist) { + strm->msg = (char *)"invalid bit length repeat"; + mode = BAD; + break; + } + while (copy--) + state->lens[state->have++] = (unsigned short)len; + } + } + + /* handle error breaks in while */ + if (mode == BAD) break; + + /* build code tables */ + state->next = state->codes; + lencode = (code const FAR *)(state->next); + lenbits = 9; + ret = inflate_table9(LENS, state->lens, state->nlen, + &(state->next), &(lenbits), state->work); + if (ret) { + strm->msg = (char *)"invalid literal/lengths set"; + mode = BAD; + break; + } + distcode = (code const FAR *)(state->next); + distbits = 6; + ret = inflate_table9(DISTS, state->lens + state->nlen, + state->ndist, &(state->next), &(distbits), + state->work); + if (ret) { + strm->msg = (char *)"invalid distances set"; + mode = BAD; + break; + } + Tracev((stderr, "inflate: codes ok\n")); + mode = LEN; + + case LEN: + /* get a literal, length, or end-of-block code */ + for (;;) { + this = lencode[BITS(lenbits)]; + if ((unsigned)(this.bits) <= bits) break; + PULLBYTE(); + } + if (this.op && (this.op & 0xf0) == 0) { + last = this; + for (;;) { + this = lencode[last.val + + (BITS(last.bits + last.op) >> last.bits)]; + if ((unsigned)(last.bits + this.bits) <= bits) break; + PULLBYTE(); + } + DROPBITS(last.bits); + } + DROPBITS(this.bits); + length = (unsigned)this.val; + + /* process literal */ + if (this.op == 0) { + Tracevv((stderr, this.val >= 0x20 && this.val < 0x7f ? + "inflate: literal '%c'\n" : + "inflate: literal 0x%02x\n", this.val)); + ROOM(); + *put++ = (unsigned char)(length); + left--; + mode = LEN; + break; + } + + /* process end of block */ + if (this.op & 32) { + Tracevv((stderr, "inflate: end of block\n")); + mode = TYPE; + break; + } + + /* invalid code */ + if (this.op & 64) { + strm->msg = (char *)"invalid literal/length code"; + mode = BAD; + break; + } + + /* length code -- get extra bits, if any */ + extra = (unsigned)(this.op) & 31; + if (extra != 0) { + NEEDBITS(extra); + length += BITS(extra); + DROPBITS(extra); + } + Tracevv((stderr, "inflate: length %lu\n", length)); + + /* get distance code */ + for (;;) { + this = distcode[BITS(distbits)]; + if ((unsigned)(this.bits) <= bits) break; + PULLBYTE(); + } + if ((this.op & 0xf0) == 0) { + last = this; + for (;;) { + this = distcode[last.val + + (BITS(last.bits + last.op) >> last.bits)]; + if ((unsigned)(last.bits + this.bits) <= bits) break; + PULLBYTE(); + } + DROPBITS(last.bits); + } + DROPBITS(this.bits); + if (this.op & 64) { + strm->msg = (char *)"invalid distance code"; + mode = BAD; + break; + } + offset = (unsigned)this.val; + + /* get distance extra bits, if any */ + extra = (unsigned)(this.op) & 15; + if (extra != 0) { + NEEDBITS(extra); + offset += BITS(extra); + DROPBITS(extra); + } + if (offset > WSIZE - (wrap ? 0: left)) { + strm->msg = (char *)"invalid distance too far back"; + mode = BAD; + break; + } + Tracevv((stderr, "inflate: distance %lu\n", offset)); + + /* copy match from window to output */ + do { + ROOM(); + copy = WSIZE - offset; + if (copy < left) { + from = put + copy; + copy = left - copy; + } + else { + from = put - offset; + copy = left; + } + if (copy > length) copy = length; + length -= copy; + left -= copy; + do { + *put++ = *from++; + } while (--copy); + } while (length != 0); + break; + + case DONE: + /* inflate stream terminated properly -- write leftover output */ + ret = Z_STREAM_END; + if (left < WSIZE) { + if (out(out_desc, window, (unsigned)(WSIZE - left))) + ret = Z_BUF_ERROR; + } + goto inf_leave; + + case BAD: + ret = Z_DATA_ERROR; + goto inf_leave; + + default: /* can't happen, but makes compilers happy */ + ret = Z_STREAM_ERROR; + goto inf_leave; + } + + /* Return unused input */ + inf_leave: + strm->next_in = next; + strm->avail_in = have; + return ret; +} + +int ZEXPORT inflateBack9End(strm) +z_stream FAR *strm; +{ + if (strm == Z_NULL || strm->state == Z_NULL || strm->zfree == (free_func)0) + return Z_STREAM_ERROR; + ZFREE(strm, strm->state); + strm->state = Z_NULL; + Tracev((stderr, "inflate: end\n")); + return Z_OK; +} diff --git a/cpukit/zlib/contrib/infback9/infback9.h b/cpukit/zlib/contrib/infback9/infback9.h new file mode 100644 index 0000000000..10bf58c368 --- /dev/null +++ b/cpukit/zlib/contrib/infback9/infback9.h @@ -0,0 +1,29 @@ +/* infback9.h -- header for using inflateBack9 functions + * Copyright (C) 2003 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* + * This header file and associated patches provide a decoder for PKWare's + * undocumented deflate64 compression method (method 9). Use with infback9.c, + * inftree9.h, inftree9.c, and inffix9.h. These patches are not supported. + * This should be compiled with zlib, since it uses zutil.h and zutil.o. + * This code has not yet been tested on 16-bit architectures. See the + * comments in zlib.h for inflateBack() usage. These functions are used + * identically, except that there is no windowBits parameter, and a 64K + * window must be provided. Also if int's are 16 bits, then a zero for + * the third parameter of the "out" function actually means 65536UL. + * zlib.h must be included before this header file. + */ + +ZEXTERN int ZEXPORT inflateBack9 OF((z_stream FAR *strm, + in_func in, void FAR *in_desc, + out_func out, void FAR *out_desc)); +ZEXTERN int ZEXPORT inflateBack9End OF((z_stream FAR *strm)); +ZEXTERN int ZEXPORT inflateBack9Init_ OF((z_stream FAR *strm, + unsigned char FAR *window, + const char *version, + int stream_size)); +#define inflateBack9Init(strm, window) \ + inflateBack9Init_((strm), (window), \ + ZLIB_VERSION, sizeof(z_stream)) diff --git a/cpukit/zlib/contrib/infback9/inffix9.h b/cpukit/zlib/contrib/infback9/inffix9.h new file mode 100644 index 0000000000..ee5671d2df --- /dev/null +++ b/cpukit/zlib/contrib/infback9/inffix9.h @@ -0,0 +1,107 @@ + /* inffix9.h -- table for decoding deflate64 fixed codes + * Generated automatically by makefixed9(). + */ + + /* WARNING: this file should *not* be used by applications. + It is part of the implementation of this library and is + subject to change. Applications should only use zlib.h. + */ + + static const code lenfix[512] = { + {96,7,0},{0,8,80},{0,8,16},{132,8,115},{130,7,31},{0,8,112}, + {0,8,48},{0,9,192},{128,7,10},{0,8,96},{0,8,32},{0,9,160}, + {0,8,0},{0,8,128},{0,8,64},{0,9,224},{128,7,6},{0,8,88}, + {0,8,24},{0,9,144},{131,7,59},{0,8,120},{0,8,56},{0,9,208}, + {129,7,17},{0,8,104},{0,8,40},{0,9,176},{0,8,8},{0,8,136}, + {0,8,72},{0,9,240},{128,7,4},{0,8,84},{0,8,20},{133,8,227}, + {131,7,43},{0,8,116},{0,8,52},{0,9,200},{129,7,13},{0,8,100}, + {0,8,36},{0,9,168},{0,8,4},{0,8,132},{0,8,68},{0,9,232}, + {128,7,8},{0,8,92},{0,8,28},{0,9,152},{132,7,83},{0,8,124}, + {0,8,60},{0,9,216},{130,7,23},{0,8,108},{0,8,44},{0,9,184}, + {0,8,12},{0,8,140},{0,8,76},{0,9,248},{128,7,3},{0,8,82}, + {0,8,18},{133,8,163},{131,7,35},{0,8,114},{0,8,50},{0,9,196}, + {129,7,11},{0,8,98},{0,8,34},{0,9,164},{0,8,2},{0,8,130}, + {0,8,66},{0,9,228},{128,7,7},{0,8,90},{0,8,26},{0,9,148}, + {132,7,67},{0,8,122},{0,8,58},{0,9,212},{130,7,19},{0,8,106}, + {0,8,42},{0,9,180},{0,8,10},{0,8,138},{0,8,74},{0,9,244}, + {128,7,5},{0,8,86},{0,8,22},{65,8,0},{131,7,51},{0,8,118}, + {0,8,54},{0,9,204},{129,7,15},{0,8,102},{0,8,38},{0,9,172}, + {0,8,6},{0,8,134},{0,8,70},{0,9,236},{128,7,9},{0,8,94}, + {0,8,30},{0,9,156},{132,7,99},{0,8,126},{0,8,62},{0,9,220}, + {130,7,27},{0,8,110},{0,8,46},{0,9,188},{0,8,14},{0,8,142}, + {0,8,78},{0,9,252},{96,7,0},{0,8,81},{0,8,17},{133,8,131}, + {130,7,31},{0,8,113},{0,8,49},{0,9,194},{128,7,10},{0,8,97}, + {0,8,33},{0,9,162},{0,8,1},{0,8,129},{0,8,65},{0,9,226}, + {128,7,6},{0,8,89},{0,8,25},{0,9,146},{131,7,59},{0,8,121}, + {0,8,57},{0,9,210},{129,7,17},{0,8,105},{0,8,41},{0,9,178}, + {0,8,9},{0,8,137},{0,8,73},{0,9,242},{128,7,4},{0,8,85}, + {0,8,21},{144,8,3},{131,7,43},{0,8,117},{0,8,53},{0,9,202}, + {129,7,13},{0,8,101},{0,8,37},{0,9,170},{0,8,5},{0,8,133}, + {0,8,69},{0,9,234},{128,7,8},{0,8,93},{0,8,29},{0,9,154}, + {132,7,83},{0,8,125},{0,8,61},{0,9,218},{130,7,23},{0,8,109}, + {0,8,45},{0,9,186},{0,8,13},{0,8,141},{0,8,77},{0,9,250}, + {128,7,3},{0,8,83},{0,8,19},{133,8,195},{131,7,35},{0,8,115}, + {0,8,51},{0,9,198},{129,7,11},{0,8,99},{0,8,35},{0,9,166}, + {0,8,3},{0,8,131},{0,8,67},{0,9,230},{128,7,7},{0,8,91}, + {0,8,27},{0,9,150},{132,7,67},{0,8,123},{0,8,59},{0,9,214}, + {130,7,19},{0,8,107},{0,8,43},{0,9,182},{0,8,11},{0,8,139}, + {0,8,75},{0,9,246},{128,7,5},{0,8,87},{0,8,23},{77,8,0}, + {131,7,51},{0,8,119},{0,8,55},{0,9,206},{129,7,15},{0,8,103}, + {0,8,39},{0,9,174},{0,8,7},{0,8,135},{0,8,71},{0,9,238}, + {128,7,9},{0,8,95},{0,8,31},{0,9,158},{132,7,99},{0,8,127}, + {0,8,63},{0,9,222},{130,7,27},{0,8,111},{0,8,47},{0,9,190}, + {0,8,15},{0,8,143},{0,8,79},{0,9,254},{96,7,0},{0,8,80}, + {0,8,16},{132,8,115},{130,7,31},{0,8,112},{0,8,48},{0,9,193}, + {128,7,10},{0,8,96},{0,8,32},{0,9,161},{0,8,0},{0,8,128}, + {0,8,64},{0,9,225},{128,7,6},{0,8,88},{0,8,24},{0,9,145}, + {131,7,59},{0,8,120},{0,8,56},{0,9,209},{129,7,17},{0,8,104}, + {0,8,40},{0,9,177},{0,8,8},{0,8,136},{0,8,72},{0,9,241}, + {128,7,4},{0,8,84},{0,8,20},{133,8,227},{131,7,43},{0,8,116}, + {0,8,52},{0,9,201},{129,7,13},{0,8,100},{0,8,36},{0,9,169}, + {0,8,4},{0,8,132},{0,8,68},{0,9,233},{128,7,8},{0,8,92}, + {0,8,28},{0,9,153},{132,7,83},{0,8,124},{0,8,60},{0,9,217}, + {130,7,23},{0,8,108},{0,8,44},{0,9,185},{0,8,12},{0,8,140}, + {0,8,76},{0,9,249},{128,7,3},{0,8,82},{0,8,18},{133,8,163}, + {131,7,35},{0,8,114},{0,8,50},{0,9,197},{129,7,11},{0,8,98}, + {0,8,34},{0,9,165},{0,8,2},{0,8,130},{0,8,66},{0,9,229}, + {128,7,7},{0,8,90},{0,8,26},{0,9,149},{132,7,67},{0,8,122}, + {0,8,58},{0,9,213},{130,7,19},{0,8,106},{0,8,42},{0,9,181}, + {0,8,10},{0,8,138},{0,8,74},{0,9,245},{128,7,5},{0,8,86}, + {0,8,22},{65,8,0},{131,7,51},{0,8,118},{0,8,54},{0,9,205}, + {129,7,15},{0,8,102},{0,8,38},{0,9,173},{0,8,6},{0,8,134}, + {0,8,70},{0,9,237},{128,7,9},{0,8,94},{0,8,30},{0,9,157}, + {132,7,99},{0,8,126},{0,8,62},{0,9,221},{130,7,27},{0,8,110}, + {0,8,46},{0,9,189},{0,8,14},{0,8,142},{0,8,78},{0,9,253}, + {96,7,0},{0,8,81},{0,8,17},{133,8,131},{130,7,31},{0,8,113}, + {0,8,49},{0,9,195},{128,7,10},{0,8,97},{0,8,33},{0,9,163}, + {0,8,1},{0,8,129},{0,8,65},{0,9,227},{128,7,6},{0,8,89}, + {0,8,25},{0,9,147},{131,7,59},{0,8,121},{0,8,57},{0,9,211}, + {129,7,17},{0,8,105},{0,8,41},{0,9,179},{0,8,9},{0,8,137}, + {0,8,73},{0,9,243},{128,7,4},{0,8,85},{0,8,21},{144,8,3}, + {131,7,43},{0,8,117},{0,8,53},{0,9,203},{129,7,13},{0,8,101}, + {0,8,37},{0,9,171},{0,8,5},{0,8,133},{0,8,69},{0,9,235}, + {128,7,8},{0,8,93},{0,8,29},{0,9,155},{132,7,83},{0,8,125}, + {0,8,61},{0,9,219},{130,7,23},{0,8,109},{0,8,45},{0,9,187}, + {0,8,13},{0,8,141},{0,8,77},{0,9,251},{128,7,3},{0,8,83}, + {0,8,19},{133,8,195},{131,7,35},{0,8,115},{0,8,51},{0,9,199}, + {129,7,11},{0,8,99},{0,8,35},{0,9,167},{0,8,3},{0,8,131}, + {0,8,67},{0,9,231},{128,7,7},{0,8,91},{0,8,27},{0,9,151}, + {132,7,67},{0,8,123},{0,8,59},{0,9,215},{130,7,19},{0,8,107}, + {0,8,43},{0,9,183},{0,8,11},{0,8,139},{0,8,75},{0,9,247}, + {128,7,5},{0,8,87},{0,8,23},{77,8,0},{131,7,51},{0,8,119}, + {0,8,55},{0,9,207},{129,7,15},{0,8,103},{0,8,39},{0,9,175}, + {0,8,7},{0,8,135},{0,8,71},{0,9,239},{128,7,9},{0,8,95}, + {0,8,31},{0,9,159},{132,7,99},{0,8,127},{0,8,63},{0,9,223}, + {130,7,27},{0,8,111},{0,8,47},{0,9,191},{0,8,15},{0,8,143}, + {0,8,79},{0,9,255} + }; + + static const code distfix[32] = { + {128,5,1},{135,5,257},{131,5,17},{139,5,4097},{129,5,5}, + {137,5,1025},{133,5,65},{141,5,16385},{128,5,3},{136,5,513}, + {132,5,33},{140,5,8193},{130,5,9},{138,5,2049},{134,5,129}, + {142,5,32769},{128,5,2},{135,5,385},{131,5,25},{139,5,6145}, + {129,5,7},{137,5,1537},{133,5,97},{141,5,24577},{128,5,4}, + {136,5,769},{132,5,49},{140,5,12289},{130,5,13},{138,5,3073}, + {134,5,193},{142,5,49153} + }; diff --git a/cpukit/zlib/contrib/infback9/inflate9.h b/cpukit/zlib/contrib/infback9/inflate9.h new file mode 100644 index 0000000000..ee9a79394b --- /dev/null +++ b/cpukit/zlib/contrib/infback9/inflate9.h @@ -0,0 +1,47 @@ +/* inflate9.h -- internal inflate state definition + * Copyright (C) 1995-2003 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* WARNING: this file should *not* be used by applications. It is + part of the implementation of the compression library and is + subject to change. Applications should only use zlib.h. + */ + +/* Possible inflate modes between inflate() calls */ +typedef enum { + TYPE, /* i: waiting for type bits, including last-flag bit */ + STORED, /* i: waiting for stored size (length and complement) */ + TABLE, /* i: waiting for dynamic block table lengths */ + LEN, /* i: waiting for length/lit code */ + DONE, /* finished check, done -- remain here until reset */ + BAD /* got a data error -- remain here until reset */ +} inflate_mode; + +/* + State transitions between above modes - + + (most modes can go to the BAD mode -- not shown for clarity) + + Read deflate blocks: + TYPE -> STORED or TABLE or LEN or DONE + STORED -> TYPE + TABLE -> LENLENS -> CODELENS -> LEN + Read deflate codes: + LEN -> LEN or TYPE + */ + +/* state maintained between inflate() calls. Approximately 7K bytes. */ +struct inflate_state { + /* sliding window */ + unsigned char FAR *window; /* allocated sliding window, if needed */ + /* dynamic table building */ + unsigned ncode; /* number of code length code lengths */ + unsigned nlen; /* number of length code lengths */ + unsigned ndist; /* number of distance code lengths */ + unsigned have; /* number of code lengths in lens[] */ + code FAR *next; /* next available space in codes[] */ + unsigned short lens[320]; /* temporary storage for code lengths */ + unsigned short work[288]; /* work area for code table building */ + code codes[ENOUGH]; /* space for code tables */ +}; diff --git a/cpukit/zlib/contrib/infback9/inftree9.c b/cpukit/zlib/contrib/infback9/inftree9.c new file mode 100644 index 0000000000..29bef6ab99 --- /dev/null +++ b/cpukit/zlib/contrib/infback9/inftree9.c @@ -0,0 +1,323 @@ +/* inftree9.c -- generate Huffman trees for efficient decoding + * Copyright (C) 1995-2003 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +#include "zutil.h" +#include "inftree9.h" + +#define MAXBITS 15 + +const char inflate9_copyright[] = + " inflate9 1.2.2.2 Copyright 1995-2004 Mark Adler "; +/* + If you use the zlib library in a product, an acknowledgment is welcome + in the documentation of your product. If for some reason you cannot + include such an acknowledgment, I would appreciate that you keep this + copyright string in the executable of your product. + */ + +/* + Build a set of tables to decode the provided canonical Huffman code. + The code lengths are lens[0..codes-1]. The result starts at *table, + whose indices are 0..2^bits-1. work is a writable array of at least + lens shorts, which is used as a work area. type is the type of code + to be generated, CODES, LENS, or DISTS. On return, zero is success, + -1 is an invalid code, and +1 means that ENOUGH isn't enough. table + on return points to the next available entry's address. bits is the + requested root table index bits, and on return it is the actual root + table index bits. It will differ if the request is greater than the + longest code or if it is less than the shortest code. + */ +int inflate_table9(type, lens, codes, table, bits, work) +codetype type; +unsigned short FAR *lens; +unsigned codes; +code FAR * FAR *table; +unsigned FAR *bits; +unsigned short FAR *work; +{ + unsigned len; /* a code's length in bits */ + unsigned sym; /* index of code symbols */ + unsigned min, max; /* minimum and maximum code lengths */ + unsigned root; /* number of index bits for root table */ + unsigned curr; /* number of index bits for current table */ + unsigned drop; /* code bits to drop for sub-table */ + int left; /* number of prefix codes available */ + unsigned used; /* code entries in table used */ + unsigned huff; /* Huffman code */ + unsigned incr; /* for incrementing code, index */ + unsigned fill; /* index for replicating entries */ + unsigned low; /* low bits for current root entry */ + unsigned mask; /* mask for low root bits */ + code this; /* table entry for duplication */ + code FAR *next; /* next available space in table */ + const unsigned short FAR *base; /* base value table to use */ + const unsigned short FAR *extra; /* extra bits table to use */ + int end; /* use base and extra for symbol > end */ + unsigned short count[MAXBITS+1]; /* number of codes of each length */ + unsigned short offs[MAXBITS+1]; /* offsets in table for each length */ + static const unsigned short lbase[31] = { /* Length codes 257..285 base */ + 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, + 19, 23, 27, 31, 35, 43, 51, 59, 67, 83, 99, 115, + 131, 163, 195, 227, 3, 0, 0}; + static const unsigned short lext[31] = { /* Length codes 257..285 extra */ + 128, 128, 128, 128, 128, 128, 128, 128, 129, 129, 129, 129, + 130, 130, 130, 130, 131, 131, 131, 131, 132, 132, 132, 132, + 133, 133, 133, 133, 144, 72, 199}; + static const unsigned short dbase[32] = { /* Distance codes 0..31 base */ + 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, + 65, 97, 129, 193, 257, 385, 513, 769, 1025, 1537, 2049, 3073, + 4097, 6145, 8193, 12289, 16385, 24577, 32769, 49153}; + static const unsigned short dext[32] = { /* Distance codes 0..31 extra */ + 128, 128, 128, 128, 129, 129, 130, 130, 131, 131, 132, 132, + 133, 133, 134, 134, 135, 135, 136, 136, 137, 137, 138, 138, + 139, 139, 140, 140, 141, 141, 142, 142}; + + /* + Process a set of code lengths to create a canonical Huffman code. The + code lengths are lens[0..codes-1]. Each length corresponds to the + symbols 0..codes-1. The Huffman code is generated by first sorting the + symbols by length from short to long, and retaining the symbol order + for codes with equal lengths. Then the code starts with all zero bits + for the first code of the shortest length, and the codes are integer + increments for the same length, and zeros are appended as the length + increases. For the deflate format, these bits are stored backwards + from their more natural integer increment ordering, and so when the + decoding tables are built in the large loop below, the integer codes + are incremented backwards. + + This routine assumes, but does not check, that all of the entries in + lens[] are in the range 0..MAXBITS. The caller must assure this. + 1..MAXBITS is interpreted as that code length. zero means that that + symbol does not occur in this code. + + The codes are sorted by computing a count of codes for each length, + creating from that a table of starting indices for each length in the + sorted table, and then entering the symbols in order in the sorted + table. The sorted table is work[], with that space being provided by + the caller. + + The length counts are used for other purposes as well, i.e. finding + the minimum and maximum length codes, determining if there are any + codes at all, checking for a valid set of lengths, and looking ahead + at length counts to determine sub-table sizes when building the + decoding tables. + */ + + /* accumulate lengths for codes (assumes lens[] all in 0..MAXBITS) */ + for (len = 0; len <= MAXBITS; len++) + count[len] = 0; + for (sym = 0; sym < codes; sym++) + count[lens[sym]]++; + + /* bound code lengths, force root to be within code lengths */ + root = *bits; + for (max = MAXBITS; max >= 1; max--) + if (count[max] != 0) break; + if (root > max) root = max; + if (max == 0) return -1; /* no codes! */ + for (min = 1; min <= MAXBITS; min++) + if (count[min] != 0) break; + if (root < min) root = min; + + /* check for an over-subscribed or incomplete set of lengths */ + left = 1; + for (len = 1; len <= MAXBITS; len++) { + left <<= 1; + left -= count[len]; + if (left < 0) return -1; /* over-subscribed */ + } + if (left > 0 && (type == CODES || (codes - count[0] != 1))) + return -1; /* incomplete set */ + + /* generate offsets into symbol table for each length for sorting */ + offs[1] = 0; + for (len = 1; len < MAXBITS; len++) + offs[len + 1] = offs[len] + count[len]; + + /* sort symbols by length, by symbol order within each length */ + for (sym = 0; sym < codes; sym++) + if (lens[sym] != 0) work[offs[lens[sym]]++] = (unsigned short)sym; + + /* + Create and fill in decoding tables. In this loop, the table being + filled is at next and has curr index bits. The code being used is huff + with length len. That code is converted to an index by dropping drop + bits off of the bottom. For codes where len is less than drop + curr, + those top drop + curr - len bits are incremented through all values to + fill the table with replicated entries. + + root is the number of index bits for the root table. When len exceeds + root, sub-tables are created pointed to by the root entry with an index + of the low root bits of huff. This is saved in low to check for when a + new sub-table should be started. drop is zero when the root table is + being filled, and drop is root when sub-tables are being filled. + + When a new sub-table is needed, it is necessary to look ahead in the + code lengths to determine what size sub-table is needed. The length + counts are used for this, and so count[] is decremented as codes are + entered in the tables. + + used keeps track of how many table entries have been allocated from the + provided *table space. It is checked when a LENS table is being made + against the space in *table, ENOUGH, minus the maximum space needed by + the worst case distance code, MAXD. This should never happen, but the + sufficiency of ENOUGH has not been proven exhaustively, hence the check. + This assumes that when type == LENS, bits == 9. + + sym increments through all symbols, and the loop terminates when + all codes of length max, i.e. all codes, have been processed. This + routine permits incomplete codes, so another loop after this one fills + in the rest of the decoding tables with invalid code markers. + */ + + /* set up for code type */ + switch (type) { + case CODES: + base = extra = work; /* dummy value--not used */ + end = 19; + break; + case LENS: + base = lbase; + base -= 257; + extra = lext; + extra -= 257; + end = 256; + break; + default: /* DISTS */ + base = dbase; + extra = dext; + end = -1; + } + + /* initialize state for loop */ + huff = 0; /* starting code */ + sym = 0; /* starting code symbol */ + len = min; /* starting code length */ + next = *table; /* current table to fill in */ + curr = root; /* current table index bits */ + drop = 0; /* current bits to drop from code for index */ + low = (unsigned)(-1); /* trigger new sub-table when len > root */ + used = 1U << root; /* use root table entries */ + mask = used - 1; /* mask for comparing low */ + + /* check available table space */ + if (type == LENS && used >= ENOUGH - MAXD) + return 1; + + /* process all codes and make table entries */ + for (;;) { + /* create table entry */ + this.bits = (unsigned char)(len - drop); + if ((int)(work[sym]) < end) { + this.op = (unsigned char)0; + this.val = work[sym]; + } + else if ((int)(work[sym]) > end) { + this.op = (unsigned char)(extra[work[sym]]); + this.val = base[work[sym]]; + } + else { + this.op = (unsigned char)(32 + 64); /* end of block */ + this.val = 0; + } + + /* replicate for those indices with low len bits equal to huff */ + incr = 1U << (len - drop); + fill = 1U << curr; + do { + fill -= incr; + next[(huff >> drop) + fill] = this; + } while (fill != 0); + + /* backwards increment the len-bit code huff */ + incr = 1U << (len - 1); + while (huff & incr) + incr >>= 1; + if (incr != 0) { + huff &= incr - 1; + huff += incr; + } + else + huff = 0; + + /* go to next symbol, update count, len */ + sym++; + if (--(count[len]) == 0) { + if (len == max) break; + len = lens[work[sym]]; + } + + /* create new sub-table if needed */ + if (len > root && (huff & mask) != low) { + /* if first time, transition to sub-tables */ + if (drop == 0) + drop = root; + + /* increment past last table */ + next += 1U << curr; + + /* determine length of next table */ + curr = len - drop; + left = (int)(1 << curr); + while (curr + drop < max) { + left -= count[curr + drop]; + if (left <= 0) break; + curr++; + left <<= 1; + } + + /* check for enough space */ + used += 1U << curr; + if (type == LENS && used >= ENOUGH - MAXD) + return 1; + + /* point entry in root table to sub-table */ + low = huff & mask; + (*table)[low].op = (unsigned char)curr; + (*table)[low].bits = (unsigned char)root; + (*table)[low].val = (unsigned short)(next - *table); + } + } + + /* + Fill in rest of table for incomplete codes. This loop is similar to the + loop above in incrementing huff for table indices. It is assumed that + len is equal to curr + drop, so there is no loop needed to increment + through high index bits. When the current sub-table is filled, the loop + drops back to the root table to fill in any remaining entries there. + */ + this.op = (unsigned char)64; /* invalid code marker */ + this.bits = (unsigned char)(len - drop); + this.val = (unsigned short)0; + while (huff != 0) { + /* when done with sub-table, drop back to root table */ + if (drop != 0 && (huff & mask) != low) { + drop = 0; + len = root; + next = *table; + curr = root; + this.bits = (unsigned char)len; + } + + /* put invalid code marker in table */ + next[huff >> drop] = this; + + /* backwards increment the len-bit code huff */ + incr = 1U << (len - 1); + while (huff & incr) + incr >>= 1; + if (incr != 0) { + huff &= incr - 1; + huff += incr; + } + else + huff = 0; + } + + /* set return parameters */ + *table += used; + *bits = root; + return 0; +} diff --git a/cpukit/zlib/contrib/infback9/inftree9.h b/cpukit/zlib/contrib/infback9/inftree9.h new file mode 100644 index 0000000000..6a699a798f --- /dev/null +++ b/cpukit/zlib/contrib/infback9/inftree9.h @@ -0,0 +1,55 @@ +/* inftree9.h -- header to use inftree9.c + * Copyright (C) 1995-2003 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* WARNING: this file should *not* be used by applications. It is + part of the implementation of the compression library and is + subject to change. Applications should only use zlib.h. + */ + +/* Structure for decoding tables. Each entry provides either the + information needed to do the operation requested by the code that + indexed that table entry, or it provides a pointer to another + table that indexes more bits of the code. op indicates whether + the entry is a pointer to another table, a literal, a length or + distance, an end-of-block, or an invalid code. For a table + pointer, the low four bits of op is the number of index bits of + that table. For a length or distance, the low four bits of op + is the number of extra bits to get after the code. bits is + the number of bits in this code or part of the code to drop off + of the bit buffer. val is the actual byte to output in the case + of a literal, the base length or distance, or the offset from + the current table to the next table. Each entry is four bytes. */ +typedef struct { + unsigned char op; /* operation, extra bits, table bits */ + unsigned char bits; /* bits in this part of the code */ + unsigned short val; /* offset in table or code value */ +} code; + +/* op values as set by inflate_table(): + 00000000 - literal + 0000tttt - table link, tttt != 0 is the number of table index bits + 100eeeee - length or distance, eeee is the number of extra bits + 01100000 - end of block + 01000000 - invalid code + */ + +/* Maximum size of dynamic tree. The maximum found in a long but non- + exhaustive search was 1004 code structures (850 for length/literals + and 154 for distances, the latter actually the result of an + exhaustive search). The true maximum is not known, but the value + below is more than safe. */ +#define ENOUGH 1440 +#define MAXD 154 + +/* Type of code to build for inftable() */ +typedef enum { + CODES, + LENS, + DISTS +} codetype; + +extern int inflate_table9 OF((codetype type, unsigned short FAR *lens, + unsigned codes, code FAR * FAR *table, + unsigned FAR *bits, unsigned short FAR *work)); diff --git a/cpukit/zlib/contrib/inflate86/inffas86.c b/cpukit/zlib/contrib/inflate86/inffas86.c new file mode 100644 index 0000000000..6da76358cc --- /dev/null +++ b/cpukit/zlib/contrib/inflate86/inffas86.c @@ -0,0 +1,1157 @@ +/* inffas86.c is a hand tuned assembler version of + * + * inffast.c -- fast decoding + * Copyright (C) 1995-2003 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + * + * Copyright (C) 2003 Chris Anderson + * Please use the copyright conditions above. + * + * Dec-29-2003 -- I added AMD64 inflate asm support. This version is also + * slightly quicker on x86 systems because, instead of using rep movsb to copy + * data, it uses rep movsw, which moves data in 2-byte chunks instead of single + * bytes. I've tested the AMD64 code on a Fedora Core 1 + the x86_64 updates + * from http://fedora.linux.duke.edu/fc1_x86_64 + * which is running on an Athlon 64 3000+ / Gigabyte GA-K8VT800M system with + * 1GB ram. The 64-bit version is about 4% faster than the 32-bit version, + * when decompressing mozilla-source-1.3.tar.gz. + * + * Mar-13-2003 -- Most of this is derived from inffast.S which is derived from + * the gcc -S output of zlib-1.2.0/inffast.c. Zlib-1.2.0 is in beta release at + * the moment. I have successfully compiled and tested this code with gcc2.96, + * gcc3.2, icc5.0, msvc6.0. It is very close to the speed of inffast.S + * compiled with gcc -DNO_MMX, but inffast.S is still faster on the P3 with MMX + * enabled. I will attempt to merge the MMX code into this version. Newer + * versions of this and inffast.S can be found at + * http://www.eetbeetee.com/zlib/ and http://www.charm.net/~christop/zlib/ + */ + +#include "zutil.h" +#include "inftrees.h" +#include "inflate.h" +#include "inffast.h" + +/* Mark Adler's comments from inffast.c: */ + +/* + Decode literal, length, and distance codes and write out the resulting + literal and match bytes until either not enough input or output is + available, an end-of-block is encountered, or a data error is encountered. + When large enough input and output buffers are supplied to inflate(), for + example, a 16K input buffer and a 64K output buffer, more than 95% of the + inflate execution time is spent in this routine. + + Entry assumptions: + + state->mode == LEN + strm->avail_in >= 6 + strm->avail_out >= 258 + start >= strm->avail_out + state->bits < 8 + + On return, state->mode is one of: + + LEN -- ran out of enough output space or enough available input + TYPE -- reached end of block code, inflate() to interpret next block + BAD -- error in block data + + Notes: + + - The maximum input bits used by a length/distance pair is 15 bits for the + length code, 5 bits for the length extra, 15 bits for the distance code, + and 13 bits for the distance extra. This totals 48 bits, or six bytes. + Therefore if strm->avail_in >= 6, then there is enough input to avoid + checking for available input while decoding. + + - The maximum bytes that a single length/distance pair can output is 258 + bytes, which is the maximum length that can be coded. inflate_fast() + requires strm->avail_out >= 258 for each loop to avoid checking for + output space. + */ +void inflate_fast(strm, start) +z_streamp strm; +unsigned start; /* inflate()'s starting value for strm->avail_out */ +{ + struct inflate_state FAR *state; + struct inffast_ar { +/* 64 32 x86 x86_64 */ +/* ar offset register */ +/* 0 0 */ void *esp; /* esp save */ +/* 8 4 */ void *ebp; /* ebp save */ +/* 16 8 */ unsigned char FAR *in; /* esi rsi local strm->next_in */ +/* 24 12 */ unsigned char FAR *last; /* r9 while in < last */ +/* 32 16 */ unsigned char FAR *out; /* edi rdi local strm->next_out */ +/* 40 20 */ unsigned char FAR *beg; /* inflate()'s init next_out */ +/* 48 24 */ unsigned char FAR *end; /* r10 while out < end */ +/* 56 28 */ unsigned char FAR *window;/* size of window, wsize!=0 */ +/* 64 32 */ code const FAR *lcode; /* ebp rbp local strm->lencode */ +/* 72 36 */ code const FAR *dcode; /* r11 local strm->distcode */ +/* 80 40 */ unsigned long hold; /* edx rdx local strm->hold */ +/* 88 44 */ unsigned bits; /* ebx rbx local strm->bits */ +/* 92 48 */ unsigned wsize; /* window size */ +/* 96 52 */ unsigned write; /* window write index */ +/*100 56 */ unsigned lmask; /* r12 mask for lcode */ +/*104 60 */ unsigned dmask; /* r13 mask for dcode */ +/*108 64 */ unsigned len; /* r14 match length */ +/*112 68 */ unsigned dist; /* r15 match distance */ +/*116 72 */ unsigned status; /* set when state chng*/ + } ar; + +#if defined( __GNUC__ ) && defined( __amd64__ ) && ! defined( __i386 ) +#define PAD_AVAIL_IN 6 +#define PAD_AVAIL_OUT 258 +#else +#define PAD_AVAIL_IN 5 +#define PAD_AVAIL_OUT 257 +#endif + + /* copy state to local variables */ + state = (struct inflate_state FAR *)strm->state; + ar.in = strm->next_in; + ar.last = ar.in + (strm->avail_in - PAD_AVAIL_IN); + ar.out = strm->next_out; + ar.beg = ar.out - (start - strm->avail_out); + ar.end = ar.out + (strm->avail_out - PAD_AVAIL_OUT); + ar.wsize = state->wsize; + ar.write = state->write; + ar.window = state->window; + ar.hold = state->hold; + ar.bits = state->bits; + ar.lcode = state->lencode; + ar.dcode = state->distcode; + ar.lmask = (1U << state->lenbits) - 1; + ar.dmask = (1U << state->distbits) - 1; + + /* decode literals and length/distances until end-of-block or not enough + input data or output space */ + + /* align in on 1/2 hold size boundary */ + while (((unsigned long)(void *)ar.in & (sizeof(ar.hold) / 2 - 1)) != 0) { + ar.hold += (unsigned long)*ar.in++ << ar.bits; + ar.bits += 8; + } + +#if defined( __GNUC__ ) && defined( __amd64__ ) && ! defined( __i386 ) + __asm__ __volatile__ ( +" leaq %0, %%rax\n" +" movq %%rbp, 8(%%rax)\n" /* save regs rbp and rsp */ +" movq %%rsp, (%%rax)\n" +" movq %%rax, %%rsp\n" /* make rsp point to &ar */ +" movq 16(%%rsp), %%rsi\n" /* rsi = in */ +" movq 32(%%rsp), %%rdi\n" /* rdi = out */ +" movq 24(%%rsp), %%r9\n" /* r9 = last */ +" movq 48(%%rsp), %%r10\n" /* r10 = end */ +" movq 64(%%rsp), %%rbp\n" /* rbp = lcode */ +" movq 72(%%rsp), %%r11\n" /* r11 = dcode */ +" movq 80(%%rsp), %%rdx\n" /* rdx = hold */ +" movl 88(%%rsp), %%ebx\n" /* ebx = bits */ +" movl 100(%%rsp), %%r12d\n" /* r12d = lmask */ +" movl 104(%%rsp), %%r13d\n" /* r13d = dmask */ + /* r14d = len */ + /* r15d = dist */ +" cld\n" +" cmpq %%rdi, %%r10\n" +" je .L_one_time\n" /* if only one decode left */ +" cmpq %%rsi, %%r9\n" +" je .L_one_time\n" +" jmp .L_do_loop\n" + +".L_one_time:\n" +" movq %%r12, %%r8\n" /* r8 = lmask */ +" cmpb $32, %%bl\n" +" ja .L_get_length_code_one_time\n" + +" lodsl\n" /* eax = *(uint *)in++ */ +" movb %%bl, %%cl\n" /* cl = bits, needs it for shifting */ +" addb $32, %%bl\n" /* bits += 32 */ +" shlq %%cl, %%rax\n" +" orq %%rax, %%rdx\n" /* hold |= *((uint *)in)++ << bits */ +" jmp .L_get_length_code_one_time\n" + +".align 32,0x90\n" +".L_while_test:\n" +" cmpq %%rdi, %%r10\n" +" jbe .L_break_loop\n" +" cmpq %%rsi, %%r9\n" +" jbe .L_break_loop\n" + +".L_do_loop:\n" +" movq %%r12, %%r8\n" /* r8 = lmask */ +" cmpb $32, %%bl\n" +" ja .L_get_length_code\n" /* if (32 < bits) */ + +" lodsl\n" /* eax = *(uint *)in++ */ +" movb %%bl, %%cl\n" /* cl = bits, needs it for shifting */ +" addb $32, %%bl\n" /* bits += 32 */ +" shlq %%cl, %%rax\n" +" orq %%rax, %%rdx\n" /* hold |= *((uint *)in)++ << bits */ + +".L_get_length_code:\n" +" andq %%rdx, %%r8\n" /* r8 &= hold */ +" movl (%%rbp,%%r8,4), %%eax\n" /* eax = lcode[hold & lmask] */ + +" movb %%ah, %%cl\n" /* cl = this.bits */ +" subb %%ah, %%bl\n" /* bits -= this.bits */ +" shrq %%cl, %%rdx\n" /* hold >>= this.bits */ + +" testb %%al, %%al\n" +" jnz .L_test_for_length_base\n" /* if (op != 0) 45.7% */ + +" movq %%r12, %%r8\n" /* r8 = lmask */ +" shrl $16, %%eax\n" /* output this.val char */ +" stosb\n" + +".L_get_length_code_one_time:\n" +" andq %%rdx, %%r8\n" /* r8 &= hold */ +" movl (%%rbp,%%r8,4), %%eax\n" /* eax = lcode[hold & lmask] */ + +".L_dolen:\n" +" movb %%ah, %%cl\n" /* cl = this.bits */ +" subb %%ah, %%bl\n" /* bits -= this.bits */ +" shrq %%cl, %%rdx\n" /* hold >>= this.bits */ + +" testb %%al, %%al\n" +" jnz .L_test_for_length_base\n" /* if (op != 0) 45.7% */ + +" shrl $16, %%eax\n" /* output this.val char */ +" stosb\n" +" jmp .L_while_test\n" + +".align 32,0x90\n" +".L_test_for_length_base:\n" +" movl %%eax, %%r14d\n" /* len = this */ +" shrl $16, %%r14d\n" /* len = this.val */ +" movb %%al, %%cl\n" + +" testb $16, %%al\n" +" jz .L_test_for_second_level_length\n" /* if ((op & 16) == 0) 8% */ +" andb $15, %%cl\n" /* op &= 15 */ +" jz .L_decode_distance\n" /* if (!op) */ + +".L_add_bits_to_len:\n" +" subb %%cl, %%bl\n" +" xorl %%eax, %%eax\n" +" incl %%eax\n" +" shll %%cl, %%eax\n" +" decl %%eax\n" +" andl %%edx, %%eax\n" /* eax &= hold */ +" shrq %%cl, %%rdx\n" +" addl %%eax, %%r14d\n" /* len += hold & mask[op] */ + +".L_decode_distance:\n" +" movq %%r13, %%r8\n" /* r8 = dmask */ +" cmpb $32, %%bl\n" +" ja .L_get_distance_code\n" /* if (32 < bits) */ + +" lodsl\n" /* eax = *(uint *)in++ */ +" movb %%bl, %%cl\n" /* cl = bits, needs it for shifting */ +" addb $32, %%bl\n" /* bits += 32 */ +" shlq %%cl, %%rax\n" +" orq %%rax, %%rdx\n" /* hold |= *((uint *)in)++ << bits */ + +".L_get_distance_code:\n" +" andq %%rdx, %%r8\n" /* r8 &= hold */ +" movl (%%r11,%%r8,4), %%eax\n" /* eax = dcode[hold & dmask] */ + +".L_dodist:\n" +" movl %%eax, %%r15d\n" /* dist = this */ +" shrl $16, %%r15d\n" /* dist = this.val */ +" movb %%ah, %%cl\n" +" subb %%ah, %%bl\n" /* bits -= this.bits */ +" shrq %%cl, %%rdx\n" /* hold >>= this.bits */ +" movb %%al, %%cl\n" /* cl = this.op */ + +" testb $16, %%al\n" /* if ((op & 16) == 0) */ +" jz .L_test_for_second_level_dist\n" +" andb $15, %%cl\n" /* op &= 15 */ +" jz .L_check_dist_one\n" + +".L_add_bits_to_dist:\n" +" subb %%cl, %%bl\n" +" xorl %%eax, %%eax\n" +" incl %%eax\n" +" shll %%cl, %%eax\n" +" decl %%eax\n" /* (1 << op) - 1 */ +" andl %%edx, %%eax\n" /* eax &= hold */ +" shrq %%cl, %%rdx\n" +" addl %%eax, %%r15d\n" /* dist += hold & ((1 << op) - 1) */ + +".L_check_window:\n" +" movq %%rsi, %%r8\n" /* save in so from can use it's reg */ +" movq %%rdi, %%rax\n" +" subq 40(%%rsp), %%rax\n" /* nbytes = out - beg */ + +" cmpl %%r15d, %%eax\n" +" jb .L_clip_window\n" /* if (dist > nbytes) 4.2% */ + +" movl %%r14d, %%ecx\n" /* ecx = len */ +" movq %%rdi, %%rsi\n" +" subq %%r15, %%rsi\n" /* from = out - dist */ + +" sarl %%ecx\n" +" jnc .L_copy_two\n" /* if len % 2 == 0 */ + +" rep movsw\n" +" movb (%%rsi), %%al\n" +" movb %%al, (%%rdi)\n" +" incq %%rdi\n" + +" movq %%r8, %%rsi\n" /* move in back to %rsi, toss from */ +" jmp .L_while_test\n" + +".L_copy_two:\n" +" rep movsw\n" +" movq %%r8, %%rsi\n" /* move in back to %rsi, toss from */ +" jmp .L_while_test\n" + +".align 32,0x90\n" +".L_check_dist_one:\n" +" cmpl $1, %%r15d\n" /* if dist 1, is a memset */ +" jne .L_check_window\n" +" cmpq %%rdi, 40(%%rsp)\n" /* if out == beg, outside window */ +" je .L_check_window\n" + +" movl %%r14d, %%ecx\n" /* ecx = len */ +" movb -1(%%rdi), %%al\n" +" movb %%al, %%ah\n" + +" sarl %%ecx\n" +" jnc .L_set_two\n" +" movb %%al, (%%rdi)\n" +" incq %%rdi\n" + +".L_set_two:\n" +" rep stosw\n" +" jmp .L_while_test\n" + +".align 32,0x90\n" +".L_test_for_second_level_length:\n" +" testb $64, %%al\n" +" jnz .L_test_for_end_of_block\n" /* if ((op & 64) != 0) */ + +" xorl %%eax, %%eax\n" +" incl %%eax\n" +" shll %%cl, %%eax\n" +" decl %%eax\n" +" andl %%edx, %%eax\n" /* eax &= hold */ +" addl %%r14d, %%eax\n" /* eax += len */ +" movl (%%rbp,%%rax,4), %%eax\n" /* eax = lcode[val+(hold&mask[op])]*/ +" jmp .L_dolen\n" + +".align 32,0x90\n" +".L_test_for_second_level_dist:\n" +" testb $64, %%al\n" +" jnz .L_invalid_distance_code\n" /* if ((op & 64) != 0) */ + +" xorl %%eax, %%eax\n" +" incl %%eax\n" +" shll %%cl, %%eax\n" +" decl %%eax\n" +" andl %%edx, %%eax\n" /* eax &= hold */ +" addl %%r15d, %%eax\n" /* eax += dist */ +" movl (%%r11,%%rax,4), %%eax\n" /* eax = dcode[val+(hold&mask[op])]*/ +" jmp .L_dodist\n" + +".align 32,0x90\n" +".L_clip_window:\n" +" movl %%eax, %%ecx\n" /* ecx = nbytes */ +" movl 92(%%rsp), %%eax\n" /* eax = wsize, prepare for dist cmp */ +" negl %%ecx\n" /* nbytes = -nbytes */ + +" cmpl %%r15d, %%eax\n" +" jb .L_invalid_distance_too_far\n" /* if (dist > wsize) */ + +" addl %%r15d, %%ecx\n" /* nbytes = dist - nbytes */ +" cmpl $0, 96(%%rsp)\n" +" jne .L_wrap_around_window\n" /* if (write != 0) */ + +" movq 56(%%rsp), %%rsi\n" /* from = window */ +" subl %%ecx, %%eax\n" /* eax -= nbytes */ +" addq %%rax, %%rsi\n" /* from += wsize - nbytes */ + +" movl %%r14d, %%eax\n" /* eax = len */ +" cmpl %%ecx, %%r14d\n" +" jbe .L_do_copy\n" /* if (nbytes >= len) */ + +" subl %%ecx, %%eax\n" /* eax -= nbytes */ +" rep movsb\n" +" movq %%rdi, %%rsi\n" +" subq %%r15, %%rsi\n" /* from = &out[ -dist ] */ +" jmp .L_do_copy\n" + +".align 32,0x90\n" +".L_wrap_around_window:\n" +" movl 96(%%rsp), %%eax\n" /* eax = write */ +" cmpl %%eax, %%ecx\n" +" jbe .L_contiguous_in_window\n" /* if (write >= nbytes) */ + +" movl 92(%%rsp), %%esi\n" /* from = wsize */ +" addq 56(%%rsp), %%rsi\n" /* from += window */ +" addq %%rax, %%rsi\n" /* from += write */ +" subq %%rcx, %%rsi\n" /* from -= nbytes */ +" subl %%eax, %%ecx\n" /* nbytes -= write */ + +" movl %%r14d, %%eax\n" /* eax = len */ +" cmpl %%ecx, %%eax\n" +" jbe .L_do_copy\n" /* if (nbytes >= len) */ + +" subl %%ecx, %%eax\n" /* len -= nbytes */ +" rep movsb\n" +" movq 56(%%rsp), %%rsi\n" /* from = window */ +" movl 96(%%rsp), %%ecx\n" /* nbytes = write */ +" cmpl %%ecx, %%eax\n" +" jbe .L_do_copy\n" /* if (nbytes >= len) */ + +" subl %%ecx, %%eax\n" /* len -= nbytes */ +" rep movsb\n" +" movq %%rdi, %%rsi\n" +" subq %%r15, %%rsi\n" /* from = out - dist */ +" jmp .L_do_copy\n" + +".align 32,0x90\n" +".L_contiguous_in_window:\n" +" movq 56(%%rsp), %%rsi\n" /* rsi = window */ +" addq %%rax, %%rsi\n" +" subq %%rcx, %%rsi\n" /* from += write - nbytes */ + +" movl %%r14d, %%eax\n" /* eax = len */ +" cmpl %%ecx, %%eax\n" +" jbe .L_do_copy\n" /* if (nbytes >= len) */ + +" subl %%ecx, %%eax\n" /* len -= nbytes */ +" rep movsb\n" +" movq %%rdi, %%rsi\n" +" subq %%r15, %%rsi\n" /* from = out - dist */ +" jmp .L_do_copy\n" /* if (nbytes >= len) */ + +".align 32,0x90\n" +".L_do_copy:\n" +" movl %%eax, %%ecx\n" /* ecx = len */ +" rep movsb\n" + +" movq %%r8, %%rsi\n" /* move in back to %esi, toss from */ +" jmp .L_while_test\n" + +".L_test_for_end_of_block:\n" +" testb $32, %%al\n" +" jz .L_invalid_literal_length_code\n" +" movl $1, 116(%%rsp)\n" +" jmp .L_break_loop_with_status\n" + +".L_invalid_literal_length_code:\n" +" movl $2, 116(%%rsp)\n" +" jmp .L_break_loop_with_status\n" + +".L_invalid_distance_code:\n" +" movl $3, 116(%%rsp)\n" +" jmp .L_break_loop_with_status\n" + +".L_invalid_distance_too_far:\n" +" movl $4, 116(%%rsp)\n" +" jmp .L_break_loop_with_status\n" + +".L_break_loop:\n" +" movl $0, 116(%%rsp)\n" + +".L_break_loop_with_status:\n" +/* put in, out, bits, and hold back into ar and pop esp */ +" movq %%rsi, 16(%%rsp)\n" /* in */ +" movq %%rdi, 32(%%rsp)\n" /* out */ +" movl %%ebx, 88(%%rsp)\n" /* bits */ +" movq %%rdx, 80(%%rsp)\n" /* hold */ +" movq (%%rsp), %%rax\n" /* restore rbp and rsp */ +" movq 8(%%rsp), %%rbp\n" +" movq %%rax, %%rsp\n" + : + : "m" (ar) + : "memory", "%rax", "%rbx", "%rcx", "%rdx", "%rsi", "%rdi", + "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15" + ); +#elif ( defined( __GNUC__ ) || defined( __ICC ) ) && defined( __i386 ) + __asm__ __volatile__ ( +" leal %0, %%eax\n" +" movl %%esp, (%%eax)\n" /* save esp, ebp */ +" movl %%ebp, 4(%%eax)\n" +" movl %%eax, %%esp\n" +" movl 8(%%esp), %%esi\n" /* esi = in */ +" movl 16(%%esp), %%edi\n" /* edi = out */ +" movl 40(%%esp), %%edx\n" /* edx = hold */ +" movl 44(%%esp), %%ebx\n" /* ebx = bits */ +" movl 32(%%esp), %%ebp\n" /* ebp = lcode */ + +" cld\n" +" jmp .L_do_loop\n" + +".align 32,0x90\n" +".L_while_test:\n" +" cmpl %%edi, 24(%%esp)\n" /* out < end */ +" jbe .L_break_loop\n" +" cmpl %%esi, 12(%%esp)\n" /* in < last */ +" jbe .L_break_loop\n" + +".L_do_loop:\n" +" cmpb $15, %%bl\n" +" ja .L_get_length_code\n" /* if (15 < bits) */ + +" xorl %%eax, %%eax\n" +" lodsw\n" /* al = *(ushort *)in++ */ +" movb %%bl, %%cl\n" /* cl = bits, needs it for shifting */ +" addb $16, %%bl\n" /* bits += 16 */ +" shll %%cl, %%eax\n" +" orl %%eax, %%edx\n" /* hold |= *((ushort *)in)++ << bits */ + +".L_get_length_code:\n" +" movl 56(%%esp), %%eax\n" /* eax = lmask */ +" andl %%edx, %%eax\n" /* eax &= hold */ +" movl (%%ebp,%%eax,4), %%eax\n" /* eax = lcode[hold & lmask] */ + +".L_dolen:\n" +" movb %%ah, %%cl\n" /* cl = this.bits */ +" subb %%ah, %%bl\n" /* bits -= this.bits */ +" shrl %%cl, %%edx\n" /* hold >>= this.bits */ + +" testb %%al, %%al\n" +" jnz .L_test_for_length_base\n" /* if (op != 0) 45.7% */ + +" shrl $16, %%eax\n" /* output this.val char */ +" stosb\n" +" jmp .L_while_test\n" + +".align 32,0x90\n" +".L_test_for_length_base:\n" +" movl %%eax, %%ecx\n" /* len = this */ +" shrl $16, %%ecx\n" /* len = this.val */ +" movl %%ecx, 64(%%esp)\n" /* save len */ +" movb %%al, %%cl\n" + +" testb $16, %%al\n" +" jz .L_test_for_second_level_length\n" /* if ((op & 16) == 0) 8% */ +" andb $15, %%cl\n" /* op &= 15 */ +" jz .L_decode_distance\n" /* if (!op) */ +" cmpb %%cl, %%bl\n" +" jae .L_add_bits_to_len\n" /* if (op <= bits) */ + +" movb %%cl, %%ch\n" /* stash op in ch, freeing cl */ +" xorl %%eax, %%eax\n" +" lodsw\n" /* al = *(ushort *)in++ */ +" movb %%bl, %%cl\n" /* cl = bits, needs it for shifting */ +" addb $16, %%bl\n" /* bits += 16 */ +" shll %%cl, %%eax\n" +" orl %%eax, %%edx\n" /* hold |= *((ushort *)in)++ << bits */ +" movb %%ch, %%cl\n" /* move op back to ecx */ + +".L_add_bits_to_len:\n" +" subb %%cl, %%bl\n" +" xorl %%eax, %%eax\n" +" incl %%eax\n" +" shll %%cl, %%eax\n" +" decl %%eax\n" +" andl %%edx, %%eax\n" /* eax &= hold */ +" shrl %%cl, %%edx\n" +" addl %%eax, 64(%%esp)\n" /* len += hold & mask[op] */ + +".L_decode_distance:\n" +" cmpb $15, %%bl\n" +" ja .L_get_distance_code\n" /* if (15 < bits) */ + +" xorl %%eax, %%eax\n" +" lodsw\n" /* al = *(ushort *)in++ */ +" movb %%bl, %%cl\n" /* cl = bits, needs it for shifting */ +" addb $16, %%bl\n" /* bits += 16 */ +" shll %%cl, %%eax\n" +" orl %%eax, %%edx\n" /* hold |= *((ushort *)in)++ << bits */ + +".L_get_distance_code:\n" +" movl 60(%%esp), %%eax\n" /* eax = dmask */ +" movl 36(%%esp), %%ecx\n" /* ecx = dcode */ +" andl %%edx, %%eax\n" /* eax &= hold */ +" movl (%%ecx,%%eax,4), %%eax\n"/* eax = dcode[hold & dmask] */ + +".L_dodist:\n" +" movl %%eax, %%ebp\n" /* dist = this */ +" shrl $16, %%ebp\n" /* dist = this.val */ +" movb %%ah, %%cl\n" +" subb %%ah, %%bl\n" /* bits -= this.bits */ +" shrl %%cl, %%edx\n" /* hold >>= this.bits */ +" movb %%al, %%cl\n" /* cl = this.op */ + +" testb $16, %%al\n" /* if ((op & 16) == 0) */ +" jz .L_test_for_second_level_dist\n" +" andb $15, %%cl\n" /* op &= 15 */ +" jz .L_check_dist_one\n" +" cmpb %%cl, %%bl\n" +" jae .L_add_bits_to_dist\n" /* if (op <= bits) 97.6% */ + +" movb %%cl, %%ch\n" /* stash op in ch, freeing cl */ +" xorl %%eax, %%eax\n" +" lodsw\n" /* al = *(ushort *)in++ */ +" movb %%bl, %%cl\n" /* cl = bits, needs it for shifting */ +" addb $16, %%bl\n" /* bits += 16 */ +" shll %%cl, %%eax\n" +" orl %%eax, %%edx\n" /* hold |= *((ushort *)in)++ << bits */ +" movb %%ch, %%cl\n" /* move op back to ecx */ + +".L_add_bits_to_dist:\n" +" subb %%cl, %%bl\n" +" xorl %%eax, %%eax\n" +" incl %%eax\n" +" shll %%cl, %%eax\n" +" decl %%eax\n" /* (1 << op) - 1 */ +" andl %%edx, %%eax\n" /* eax &= hold */ +" shrl %%cl, %%edx\n" +" addl %%eax, %%ebp\n" /* dist += hold & ((1 << op) - 1) */ + +".L_check_window:\n" +" movl %%esi, 8(%%esp)\n" /* save in so from can use it's reg */ +" movl %%edi, %%eax\n" +" subl 20(%%esp), %%eax\n" /* nbytes = out - beg */ + +" cmpl %%ebp, %%eax\n" +" jb .L_clip_window\n" /* if (dist > nbytes) 4.2% */ + +" movl 64(%%esp), %%ecx\n" /* ecx = len */ +" movl %%edi, %%esi\n" +" subl %%ebp, %%esi\n" /* from = out - dist */ + +" sarl %%ecx\n" +" jnc .L_copy_two\n" /* if len % 2 == 0 */ + +" rep movsw\n" +" movb (%%esi), %%al\n" +" movb %%al, (%%edi)\n" +" incl %%edi\n" + +" movl 8(%%esp), %%esi\n" /* move in back to %esi, toss from */ +" movl 32(%%esp), %%ebp\n" /* ebp = lcode */ +" jmp .L_while_test\n" + +".L_copy_two:\n" +" rep movsw\n" +" movl 8(%%esp), %%esi\n" /* move in back to %esi, toss from */ +" movl 32(%%esp), %%ebp\n" /* ebp = lcode */ +" jmp .L_while_test\n" + +".align 32,0x90\n" +".L_check_dist_one:\n" +" cmpl $1, %%ebp\n" /* if dist 1, is a memset */ +" jne .L_check_window\n" +" cmpl %%edi, 20(%%esp)\n" +" je .L_check_window\n" /* out == beg, if outside window */ + +" movl 64(%%esp), %%ecx\n" /* ecx = len */ +" movb -1(%%edi), %%al\n" +" movb %%al, %%ah\n" + +" sarl %%ecx\n" +" jnc .L_set_two\n" +" movb %%al, (%%edi)\n" +" incl %%edi\n" + +".L_set_two:\n" +" rep stosw\n" +" movl 32(%%esp), %%ebp\n" /* ebp = lcode */ +" jmp .L_while_test\n" + +".align 32,0x90\n" +".L_test_for_second_level_length:\n" +" testb $64, %%al\n" +" jnz .L_test_for_end_of_block\n" /* if ((op & 64) != 0) */ + +" xorl %%eax, %%eax\n" +" incl %%eax\n" +" shll %%cl, %%eax\n" +" decl %%eax\n" +" andl %%edx, %%eax\n" /* eax &= hold */ +" addl 64(%%esp), %%eax\n" /* eax += len */ +" movl (%%ebp,%%eax,4), %%eax\n" /* eax = lcode[val+(hold&mask[op])]*/ +" jmp .L_dolen\n" + +".align 32,0x90\n" +".L_test_for_second_level_dist:\n" +" testb $64, %%al\n" +" jnz .L_invalid_distance_code\n" /* if ((op & 64) != 0) */ + +" xorl %%eax, %%eax\n" +" incl %%eax\n" +" shll %%cl, %%eax\n" +" decl %%eax\n" +" andl %%edx, %%eax\n" /* eax &= hold */ +" addl %%ebp, %%eax\n" /* eax += dist */ +" movl 36(%%esp), %%ecx\n" /* ecx = dcode */ +" movl (%%ecx,%%eax,4), %%eax\n" /* eax = dcode[val+(hold&mask[op])]*/ +" jmp .L_dodist\n" + +".align 32,0x90\n" +".L_clip_window:\n" +" movl %%eax, %%ecx\n" +" movl 48(%%esp), %%eax\n" /* eax = wsize */ +" negl %%ecx\n" /* nbytes = -nbytes */ +" movl 28(%%esp), %%esi\n" /* from = window */ + +" cmpl %%ebp, %%eax\n" +" jb .L_invalid_distance_too_far\n" /* if (dist > wsize) */ + +" addl %%ebp, %%ecx\n" /* nbytes = dist - nbytes */ +" cmpl $0, 52(%%esp)\n" +" jne .L_wrap_around_window\n" /* if (write != 0) */ + +" subl %%ecx, %%eax\n" +" addl %%eax, %%esi\n" /* from += wsize - nbytes */ + +" movl 64(%%esp), %%eax\n" /* eax = len */ +" cmpl %%ecx, %%eax\n" +" jbe .L_do_copy\n" /* if (nbytes >= len) */ + +" subl %%ecx, %%eax\n" /* len -= nbytes */ +" rep movsb\n" +" movl %%edi, %%esi\n" +" subl %%ebp, %%esi\n" /* from = out - dist */ +" jmp .L_do_copy\n" + +".align 32,0x90\n" +".L_wrap_around_window:\n" +" movl 52(%%esp), %%eax\n" /* eax = write */ +" cmpl %%eax, %%ecx\n" +" jbe .L_contiguous_in_window\n" /* if (write >= nbytes) */ + +" addl 48(%%esp), %%esi\n" /* from += wsize */ +" addl %%eax, %%esi\n" /* from += write */ +" subl %%ecx, %%esi\n" /* from -= nbytes */ +" subl %%eax, %%ecx\n" /* nbytes -= write */ + +" movl 64(%%esp), %%eax\n" /* eax = len */ +" cmpl %%ecx, %%eax\n" +" jbe .L_do_copy\n" /* if (nbytes >= len) */ + +" subl %%ecx, %%eax\n" /* len -= nbytes */ +" rep movsb\n" +" movl 28(%%esp), %%esi\n" /* from = window */ +" movl 52(%%esp), %%ecx\n" /* nbytes = write */ +" cmpl %%ecx, %%eax\n" +" jbe .L_do_copy\n" /* if (nbytes >= len) */ + +" subl %%ecx, %%eax\n" /* len -= nbytes */ +" rep movsb\n" +" movl %%edi, %%esi\n" +" subl %%ebp, %%esi\n" /* from = out - dist */ +" jmp .L_do_copy\n" + +".align 32,0x90\n" +".L_contiguous_in_window:\n" +" addl %%eax, %%esi\n" +" subl %%ecx, %%esi\n" /* from += write - nbytes */ + +" movl 64(%%esp), %%eax\n" /* eax = len */ +" cmpl %%ecx, %%eax\n" +" jbe .L_do_copy\n" /* if (nbytes >= len) */ + +" subl %%ecx, %%eax\n" /* len -= nbytes */ +" rep movsb\n" +" movl %%edi, %%esi\n" +" subl %%ebp, %%esi\n" /* from = out - dist */ +" jmp .L_do_copy\n" /* if (nbytes >= len) */ + +".align 32,0x90\n" +".L_do_copy:\n" +" movl %%eax, %%ecx\n" +" rep movsb\n" + +" movl 8(%%esp), %%esi\n" /* move in back to %esi, toss from */ +" movl 32(%%esp), %%ebp\n" /* ebp = lcode */ +" jmp .L_while_test\n" + +".L_test_for_end_of_block:\n" +" testb $32, %%al\n" +" jz .L_invalid_literal_length_code\n" +" movl $1, 72(%%esp)\n" +" jmp .L_break_loop_with_status\n" + +".L_invalid_literal_length_code:\n" +" movl $2, 72(%%esp)\n" +" jmp .L_break_loop_with_status\n" + +".L_invalid_distance_code:\n" +" movl $3, 72(%%esp)\n" +" jmp .L_break_loop_with_status\n" + +".L_invalid_distance_too_far:\n" +" movl 8(%%esp), %%esi\n" +" movl $4, 72(%%esp)\n" +" jmp .L_break_loop_with_status\n" + +".L_break_loop:\n" +" movl $0, 72(%%esp)\n" + +".L_break_loop_with_status:\n" +/* put in, out, bits, and hold back into ar and pop esp */ +" movl %%esi, 8(%%esp)\n" /* save in */ +" movl %%edi, 16(%%esp)\n" /* save out */ +" movl %%ebx, 44(%%esp)\n" /* save bits */ +" movl %%edx, 40(%%esp)\n" /* save hold */ +" movl 4(%%esp), %%ebp\n" /* restore esp, ebp */ +" movl (%%esp), %%esp\n" + : + : "m" (ar) + : "memory", "%eax", "%ebx", "%ecx", "%edx", "%esi", "%edi" + ); +#elif defined( _MSC_VER ) && ! defined( _M_AMD64 ) + __asm { + lea eax, ar + mov [eax], esp /* save esp, ebp */ + mov [eax+4], ebp + mov esp, eax + mov esi, [esp+8] /* esi = in */ + mov edi, [esp+16] /* edi = out */ + mov edx, [esp+40] /* edx = hold */ + mov ebx, [esp+44] /* ebx = bits */ + mov ebp, [esp+32] /* ebp = lcode */ + + cld + jmp L_do_loop + +ALIGN 4 +L_while_test: + cmp [esp+24], edi + jbe L_break_loop + cmp [esp+12], esi + jbe L_break_loop + +L_do_loop: + cmp bl, 15 + ja L_get_length_code /* if (15 < bits) */ + + xor eax, eax + lodsw /* al = *(ushort *)in++ */ + mov cl, bl /* cl = bits, needs it for shifting */ + add bl, 16 /* bits += 16 */ + shl eax, cl + or edx, eax /* hold |= *((ushort *)in)++ << bits */ + +L_get_length_code: + mov eax, [esp+56] /* eax = lmask */ + and eax, edx /* eax &= hold */ + mov eax, [ebp+eax*4] /* eax = lcode[hold & lmask] */ + +L_dolen: + mov cl, ah /* cl = this.bits */ + sub bl, ah /* bits -= this.bits */ + shr edx, cl /* hold >>= this.bits */ + + test al, al + jnz L_test_for_length_base /* if (op != 0) 45.7% */ + + shr eax, 16 /* output this.val char */ + stosb + jmp L_while_test + +ALIGN 4 +L_test_for_length_base: + mov ecx, eax /* len = this */ + shr ecx, 16 /* len = this.val */ + mov [esp+64], ecx /* save len */ + mov cl, al + + test al, 16 + jz L_test_for_second_level_length /* if ((op & 16) == 0) 8% */ + and cl, 15 /* op &= 15 */ + jz L_decode_distance /* if (!op) */ + cmp bl, cl + jae L_add_bits_to_len /* if (op <= bits) */ + + mov ch, cl /* stash op in ch, freeing cl */ + xor eax, eax + lodsw /* al = *(ushort *)in++ */ + mov cl, bl /* cl = bits, needs it for shifting */ + add bl, 16 /* bits += 16 */ + shl eax, cl + or edx, eax /* hold |= *((ushort *)in)++ << bits */ + mov cl, ch /* move op back to ecx */ + +L_add_bits_to_len: + sub bl, cl + xor eax, eax + inc eax + shl eax, cl + dec eax + and eax, edx /* eax &= hold */ + shr edx, cl + add [esp+64], eax /* len += hold & mask[op] */ + +L_decode_distance: + cmp bl, 15 + ja L_get_distance_code /* if (15 < bits) */ + + xor eax, eax + lodsw /* al = *(ushort *)in++ */ + mov cl, bl /* cl = bits, needs it for shifting */ + add bl, 16 /* bits += 16 */ + shl eax, cl + or edx, eax /* hold |= *((ushort *)in)++ << bits */ + +L_get_distance_code: + mov eax, [esp+60] /* eax = dmask */ + mov ecx, [esp+36] /* ecx = dcode */ + and eax, edx /* eax &= hold */ + mov eax, [ecx+eax*4]/* eax = dcode[hold & dmask] */ + +L_dodist: + mov ebp, eax /* dist = this */ + shr ebp, 16 /* dist = this.val */ + mov cl, ah + sub bl, ah /* bits -= this.bits */ + shr edx, cl /* hold >>= this.bits */ + mov cl, al /* cl = this.op */ + + test al, 16 /* if ((op & 16) == 0) */ + jz L_test_for_second_level_dist + and cl, 15 /* op &= 15 */ + jz L_check_dist_one + cmp bl, cl + jae L_add_bits_to_dist /* if (op <= bits) 97.6% */ + + mov ch, cl /* stash op in ch, freeing cl */ + xor eax, eax + lodsw /* al = *(ushort *)in++ */ + mov cl, bl /* cl = bits, needs it for shifting */ + add bl, 16 /* bits += 16 */ + shl eax, cl + or edx, eax /* hold |= *((ushort *)in)++ << bits */ + mov cl, ch /* move op back to ecx */ + +L_add_bits_to_dist: + sub bl, cl + xor eax, eax + inc eax + shl eax, cl + dec eax /* (1 << op) - 1 */ + and eax, edx /* eax &= hold */ + shr edx, cl + add ebp, eax /* dist += hold & ((1 << op) - 1) */ + +L_check_window: + mov [esp+8], esi /* save in so from can use it's reg */ + mov eax, edi + sub eax, [esp+20] /* nbytes = out - beg */ + + cmp eax, ebp + jb L_clip_window /* if (dist > nbytes) 4.2% */ + + mov ecx, [esp+64] /* ecx = len */ + mov esi, edi + sub esi, ebp /* from = out - dist */ + + sar ecx, 1 + jnc L_copy_two + + rep movsw + mov al, [esi] + mov [edi], al + inc edi + + mov esi, [esp+8] /* move in back to %esi, toss from */ + mov ebp, [esp+32] /* ebp = lcode */ + jmp L_while_test + +L_copy_two: + rep movsw + mov esi, [esp+8] /* move in back to %esi, toss from */ + mov ebp, [esp+32] /* ebp = lcode */ + jmp L_while_test + +ALIGN 4 +L_check_dist_one: + cmp ebp, 1 /* if dist 1, is a memset */ + jne L_check_window + cmp [esp+20], edi + je L_check_window /* out == beg, if outside window */ + + mov ecx, [esp+64] /* ecx = len */ + mov al, [edi-1] + mov ah, al + + sar ecx, 1 + jnc L_set_two + mov [edi], al /* memset out with from[-1] */ + inc edi + +L_set_two: + rep stosw + mov ebp, [esp+32] /* ebp = lcode */ + jmp L_while_test + +ALIGN 4 +L_test_for_second_level_length: + test al, 64 + jnz L_test_for_end_of_block /* if ((op & 64) != 0) */ + + xor eax, eax + inc eax + shl eax, cl + dec eax + and eax, edx /* eax &= hold */ + add eax, [esp+64] /* eax += len */ + mov eax, [ebp+eax*4] /* eax = lcode[val+(hold&mask[op])]*/ + jmp L_dolen + +ALIGN 4 +L_test_for_second_level_dist: + test al, 64 + jnz L_invalid_distance_code /* if ((op & 64) != 0) */ + + xor eax, eax + inc eax + shl eax, cl + dec eax + and eax, edx /* eax &= hold */ + add eax, ebp /* eax += dist */ + mov ecx, [esp+36] /* ecx = dcode */ + mov eax, [ecx+eax*4] /* eax = dcode[val+(hold&mask[op])]*/ + jmp L_dodist + +ALIGN 4 +L_clip_window: + mov ecx, eax + mov eax, [esp+48] /* eax = wsize */ + neg ecx /* nbytes = -nbytes */ + mov esi, [esp+28] /* from = window */ + + cmp eax, ebp + jb L_invalid_distance_too_far /* if (dist > wsize) */ + + add ecx, ebp /* nbytes = dist - nbytes */ + cmp dword ptr [esp+52], 0 + jne L_wrap_around_window /* if (write != 0) */ + + sub eax, ecx + add esi, eax /* from += wsize - nbytes */ + + mov eax, [esp+64] /* eax = len */ + cmp eax, ecx + jbe L_do_copy /* if (nbytes >= len) */ + + sub eax, ecx /* len -= nbytes */ + rep movsb + mov esi, edi + sub esi, ebp /* from = out - dist */ + jmp L_do_copy + +ALIGN 4 +L_wrap_around_window: + mov eax, [esp+52] /* eax = write */ + cmp ecx, eax + jbe L_contiguous_in_window /* if (write >= nbytes) */ + + add esi, [esp+48] /* from += wsize */ + add esi, eax /* from += write */ + sub esi, ecx /* from -= nbytes */ + sub ecx, eax /* nbytes -= write */ + + mov eax, [esp+64] /* eax = len */ + cmp eax, ecx + jbe L_do_copy /* if (nbytes >= len) */ + + sub eax, ecx /* len -= nbytes */ + rep movsb + mov esi, [esp+28] /* from = window */ + mov ecx, [esp+52] /* nbytes = write */ + cmp eax, ecx + jbe L_do_copy /* if (nbytes >= len) */ + + sub eax, ecx /* len -= nbytes */ + rep movsb + mov esi, edi + sub esi, ebp /* from = out - dist */ + jmp L_do_copy + +ALIGN 4 +L_contiguous_in_window: + add esi, eax + sub esi, ecx /* from += write - nbytes */ + + mov eax, [esp+64] /* eax = len */ + cmp eax, ecx + jbe L_do_copy /* if (nbytes >= len) */ + + sub eax, ecx /* len -= nbytes */ + rep movsb + mov esi, edi + sub esi, ebp /* from = out - dist */ + jmp L_do_copy + +ALIGN 4 +L_do_copy: + mov ecx, eax + rep movsb + + mov esi, [esp+8] /* move in back to %esi, toss from */ + mov ebp, [esp+32] /* ebp = lcode */ + jmp L_while_test + +L_test_for_end_of_block: + test al, 32 + jz L_invalid_literal_length_code + mov dword ptr [esp+72], 1 + jmp L_break_loop_with_status + +L_invalid_literal_length_code: + mov dword ptr [esp+72], 2 + jmp L_break_loop_with_status + +L_invalid_distance_code: + mov dword ptr [esp+72], 3 + jmp L_break_loop_with_status + +L_invalid_distance_too_far: + mov esi, [esp+4] + mov dword ptr [esp+72], 4 + jmp L_break_loop_with_status + +L_break_loop: + mov dword ptr [esp+72], 0 + +L_break_loop_with_status: +/* put in, out, bits, and hold back into ar and pop esp */ + mov [esp+8], esi /* save in */ + mov [esp+16], edi /* save out */ + mov [esp+44], ebx /* save bits */ + mov [esp+40], edx /* save hold */ + mov ebp, [esp+4] /* restore esp, ebp */ + mov esp, [esp] + } +#else +#error "x86 architecture not defined" +#endif + + if (ar.status > 1) { + if (ar.status == 2) + strm->msg = "invalid literal/length code"; + else if (ar.status == 3) + strm->msg = "invalid distance code"; + else + strm->msg = "invalid distance too far back"; + state->mode = BAD; + } + else if ( ar.status == 1 ) { + state->mode = TYPE; + } + + /* return unused bytes (on entry, bits < 8, so in won't go too far back) */ + ar.len = ar.bits >> 3; + ar.in -= ar.len; + ar.bits -= ar.len << 3; + ar.hold &= (1U << ar.bits) - 1; + + /* update state and return */ + strm->next_in = ar.in; + strm->next_out = ar.out; + strm->avail_in = (unsigned)(ar.in < ar.last ? + PAD_AVAIL_IN + (ar.last - ar.in) : + PAD_AVAIL_IN - (ar.in - ar.last)); + strm->avail_out = (unsigned)(ar.out < ar.end ? + PAD_AVAIL_OUT + (ar.end - ar.out) : + PAD_AVAIL_OUT - (ar.out - ar.end)); + state->hold = ar.hold; + state->bits = ar.bits; + return; +} + diff --git a/cpukit/zlib/contrib/inflate86/inffast.S b/cpukit/zlib/contrib/inflate86/inffast.S new file mode 100644 index 0000000000..2245a2905b --- /dev/null +++ b/cpukit/zlib/contrib/inflate86/inffast.S @@ -0,0 +1,1368 @@ +/* + * inffast.S is a hand tuned assembler version of: + * + * inffast.c -- fast decoding + * Copyright (C) 1995-2003 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + * + * Copyright (C) 2003 Chris Anderson + * Please use the copyright conditions above. + * + * This version (Jan-23-2003) of inflate_fast was coded and tested under + * GNU/Linux on a pentium 3, using the gcc-3.2 compiler distribution. On that + * machine, I found that gzip style archives decompressed about 20% faster than + * the gcc-3.2 -O3 -fomit-frame-pointer compiled version. Your results will + * depend on how large of a buffer is used for z_stream.next_in & next_out + * (8K-32K worked best for my 256K cpu cache) and how much overhead there is in + * stream processing I/O and crc32/addler32. In my case, this routine used + * 70% of the cpu time and crc32 used 20%. + * + * I am confident that this version will work in the general case, but I have + * not tested a wide variety of datasets or a wide variety of platforms. + * + * Jan-24-2003 -- Added -DUSE_MMX define for slightly faster inflating. + * It should be a runtime flag instead of compile time flag... + * + * Jan-26-2003 -- Added runtime check for MMX support with cpuid instruction. + * With -DUSE_MMX, only MMX code is compiled. With -DNO_MMX, only non-MMX code + * is compiled. Without either option, runtime detection is enabled. Runtime + * detection should work on all modern cpus and the recomended algorithm (flip + * ID bit on eflags and then use the cpuid instruction) is used in many + * multimedia applications. Tested under win2k with gcc-2.95 and gas-2.12 + * distributed with cygwin3. Compiling with gcc-2.95 -c inffast.S -o + * inffast.obj generates a COFF object which can then be linked with MSVC++ + * compiled code. Tested under FreeBSD 4.7 with gcc-2.95. + * + * Jan-28-2003 -- Tested Athlon XP... MMX mode is slower than no MMX (and + * slower than compiler generated code). Adjusted cpuid check to use the MMX + * code only for Pentiums < P4 until I have more data on the P4. Speed + * improvment is only about 15% on the Athlon when compared with code generated + * with MSVC++. Not sure yet, but I think the P4 will also be slower using the + * MMX mode because many of it's x86 ALU instructions execute in .5 cycles and + * have less latency than MMX ops. Added code to buffer the last 11 bytes of + * the input stream since the MMX code grabs bits in chunks of 32, which + * differs from the inffast.c algorithm. I don't think there would have been + * read overruns where a page boundary was crossed (a segfault), but there + * could have been overruns when next_in ends on unaligned memory (unintialized + * memory read). + * + * Mar-13-2003 -- P4 MMX is slightly slower than P4 NO_MMX. I created a C + * version of the non-MMX code so that it doesn't depend on zstrm and zstate + * structure offsets which are hard coded in this file. This was last tested + * with zlib-1.2.0 which is currently in beta testing, newer versions of this + * and inffas86.c can be found at http://www.eetbeetee.com/zlib/ and + * http://www.charm.net/~christop/zlib/ + */ + + +/* + * if you have underscore linking problems (_inflate_fast undefined), try + * using -DGAS_COFF + */ +#if ! defined( GAS_COFF ) && ! defined( GAS_ELF ) + +#if defined( WIN32 ) || defined( __CYGWIN__ ) +#define GAS_COFF /* windows object format */ +#else +#define GAS_ELF +#endif + +#endif /* ! GAS_COFF && ! GAS_ELF */ + + +#if defined( GAS_COFF ) + +/* coff externals have underscores */ +#define inflate_fast _inflate_fast +#define inflate_fast_use_mmx _inflate_fast_use_mmx + +#endif /* GAS_COFF */ + + +.file "inffast.S" + +.globl inflate_fast + +.text +.align 4,0 +.L_invalid_literal_length_code_msg: +.string "invalid literal/length code" + +.align 4,0 +.L_invalid_distance_code_msg: +.string "invalid distance code" + +.align 4,0 +.L_invalid_distance_too_far_msg: +.string "invalid distance too far back" + +#if ! defined( NO_MMX ) +.align 4,0 +.L_mask: /* mask[N] = ( 1 << N ) - 1 */ +.long 0 +.long 1 +.long 3 +.long 7 +.long 15 +.long 31 +.long 63 +.long 127 +.long 255 +.long 511 +.long 1023 +.long 2047 +.long 4095 +.long 8191 +.long 16383 +.long 32767 +.long 65535 +.long 131071 +.long 262143 +.long 524287 +.long 1048575 +.long 2097151 +.long 4194303 +.long 8388607 +.long 16777215 +.long 33554431 +.long 67108863 +.long 134217727 +.long 268435455 +.long 536870911 +.long 1073741823 +.long 2147483647 +.long 4294967295 +#endif /* NO_MMX */ + +.text + +/* + * struct z_stream offsets, in zlib.h + */ +#define next_in_strm 0 /* strm->next_in */ +#define avail_in_strm 4 /* strm->avail_in */ +#define next_out_strm 12 /* strm->next_out */ +#define avail_out_strm 16 /* strm->avail_out */ +#define msg_strm 24 /* strm->msg */ +#define state_strm 28 /* strm->state */ + +/* + * struct inflate_state offsets, in inflate.h + */ +#define mode_state 0 /* state->mode */ +#define wsize_state 32 /* state->wsize */ +#define write_state 40 /* state->write */ +#define window_state 44 /* state->window */ +#define hold_state 48 /* state->hold */ +#define bits_state 52 /* state->bits */ +#define lencode_state 68 /* state->lencode */ +#define distcode_state 72 /* state->distcode */ +#define lenbits_state 76 /* state->lenbits */ +#define distbits_state 80 /* state->distbits */ + +/* + * inflate_fast's activation record + */ +#define local_var_size 64 /* how much local space for vars */ +#define strm_sp 88 /* first arg: z_stream * (local_var_size + 24) */ +#define start_sp 92 /* second arg: unsigned int (local_var_size + 28) */ + +/* + * offsets for local vars on stack + */ +#define out 60 /* unsigned char* */ +#define window 56 /* unsigned char* */ +#define wsize 52 /* unsigned int */ +#define write 48 /* unsigned int */ +#define in 44 /* unsigned char* */ +#define beg 40 /* unsigned char* */ +#define buf 28 /* char[ 12 ] */ +#define len 24 /* unsigned int */ +#define last 20 /* unsigned char* */ +#define end 16 /* unsigned char* */ +#define dcode 12 /* code* */ +#define lcode 8 /* code* */ +#define dmask 4 /* unsigned int */ +#define lmask 0 /* unsigned int */ + +/* + * typedef enum inflate_mode consts, in inflate.h + */ +#define INFLATE_MODE_TYPE 11 /* state->mode flags enum-ed in inflate.h */ +#define INFLATE_MODE_BAD 26 + + +#if ! defined( USE_MMX ) && ! defined( NO_MMX ) + +#define RUN_TIME_MMX + +#define CHECK_MMX 1 +#define DO_USE_MMX 2 +#define DONT_USE_MMX 3 + +.globl inflate_fast_use_mmx + +.data + +.align 4,0 +inflate_fast_use_mmx: /* integer flag for run time control 1=check,2=mmx,3=no */ +.long CHECK_MMX + +#if defined( GAS_ELF ) +/* elf info */ +.type inflate_fast_use_mmx,@object +.size inflate_fast_use_mmx,4 +#endif + +#endif /* RUN_TIME_MMX */ + +#if defined( GAS_COFF ) +/* coff info: scl 2 = extern, type 32 = function */ +.def inflate_fast; .scl 2; .type 32; .endef +#endif + +.text + +.align 32,0x90 +inflate_fast: + pushl %edi + pushl %esi + pushl %ebp + pushl %ebx + pushf /* save eflags (strm_sp, state_sp assumes this is 32 bits) */ + subl $local_var_size, %esp + cld + +#define strm_r %esi +#define state_r %edi + + movl strm_sp(%esp), strm_r + movl state_strm(strm_r), state_r + + /* in = strm->next_in; + * out = strm->next_out; + * last = in + strm->avail_in - 11; + * beg = out - (start - strm->avail_out); + * end = out + (strm->avail_out - 257); + */ + movl avail_in_strm(strm_r), %edx + movl next_in_strm(strm_r), %eax + + addl %eax, %edx /* avail_in += next_in */ + subl $11, %edx /* avail_in -= 11 */ + + movl %eax, in(%esp) + movl %edx, last(%esp) + + movl start_sp(%esp), %ebp + movl avail_out_strm(strm_r), %ecx + movl next_out_strm(strm_r), %ebx + + subl %ecx, %ebp /* start -= avail_out */ + negl %ebp /* start = -start */ + addl %ebx, %ebp /* start += next_out */ + + subl $257, %ecx /* avail_out -= 257 */ + addl %ebx, %ecx /* avail_out += out */ + + movl %ebx, out(%esp) + movl %ebp, beg(%esp) + movl %ecx, end(%esp) + + /* wsize = state->wsize; + * write = state->write; + * window = state->window; + * hold = state->hold; + * bits = state->bits; + * lcode = state->lencode; + * dcode = state->distcode; + * lmask = ( 1 << state->lenbits ) - 1; + * dmask = ( 1 << state->distbits ) - 1; + */ + + movl lencode_state(state_r), %eax + movl distcode_state(state_r), %ecx + + movl %eax, lcode(%esp) + movl %ecx, dcode(%esp) + + movl $1, %eax + movl lenbits_state(state_r), %ecx + shll %cl, %eax + decl %eax + movl %eax, lmask(%esp) + + movl $1, %eax + movl distbits_state(state_r), %ecx + shll %cl, %eax + decl %eax + movl %eax, dmask(%esp) + + movl wsize_state(state_r), %eax + movl write_state(state_r), %ecx + movl window_state(state_r), %edx + + movl %eax, wsize(%esp) + movl %ecx, write(%esp) + movl %edx, window(%esp) + + movl hold_state(state_r), %ebp + movl bits_state(state_r), %ebx + +#undef strm_r +#undef state_r + +#define in_r %esi +#define from_r %esi +#define out_r %edi + + movl in(%esp), in_r + movl last(%esp), %ecx + cmpl in_r, %ecx + ja .L_align_long /* if in < last */ + + addl $11, %ecx /* ecx = &in[ avail_in ] */ + subl in_r, %ecx /* ecx = avail_in */ + movl $12, %eax + subl %ecx, %eax /* eax = 12 - avail_in */ + leal buf(%esp), %edi + rep movsb /* memcpy( buf, in, avail_in ) */ + movl %eax, %ecx + xorl %eax, %eax + rep stosb /* memset( &buf[ avail_in ], 0, 12 - avail_in ) */ + leal buf(%esp), in_r /* in = buf */ + movl in_r, last(%esp) /* last = in, do just one iteration */ + jmp .L_is_aligned + + /* align in_r on long boundary */ +.L_align_long: + testl $3, in_r + jz .L_is_aligned + xorl %eax, %eax + movb (in_r), %al + incl in_r + movl %ebx, %ecx + addl $8, %ebx + shll %cl, %eax + orl %eax, %ebp + jmp .L_align_long + +.L_is_aligned: + movl out(%esp), out_r + +#if defined( NO_MMX ) + jmp .L_do_loop +#endif + +#if defined( USE_MMX ) + jmp .L_init_mmx +#endif + +/*** Runtime MMX check ***/ + +#if defined( RUN_TIME_MMX ) +.L_check_mmx: + cmpl $DO_USE_MMX, inflate_fast_use_mmx + je .L_init_mmx + ja .L_do_loop /* > 2 */ + + pushl %eax + pushl %ebx + pushl %ecx + pushl %edx + pushf + movl (%esp), %eax /* copy eflags to eax */ + xorl $0x200000, (%esp) /* try toggling ID bit of eflags (bit 21) + * to see if cpu supports cpuid... + * ID bit method not supported by NexGen but + * bios may load a cpuid instruction and + * cpuid may be disabled on Cyrix 5-6x86 */ + popf + pushf + popl %edx /* copy new eflags to edx */ + xorl %eax, %edx /* test if ID bit is flipped */ + jz .L_dont_use_mmx /* not flipped if zero */ + xorl %eax, %eax + cpuid + cmpl $0x756e6547, %ebx /* check for GenuineIntel in ebx,ecx,edx */ + jne .L_dont_use_mmx + cmpl $0x6c65746e, %ecx + jne .L_dont_use_mmx + cmpl $0x49656e69, %edx + jne .L_dont_use_mmx + movl $1, %eax + cpuid /* get cpu features */ + shrl $8, %eax + andl $15, %eax + cmpl $6, %eax /* check for Pentium family, is 0xf for P4 */ + jne .L_dont_use_mmx + testl $0x800000, %edx /* test if MMX feature is set (bit 23) */ + jnz .L_use_mmx + jmp .L_dont_use_mmx +.L_use_mmx: + movl $DO_USE_MMX, inflate_fast_use_mmx + jmp .L_check_mmx_pop +.L_dont_use_mmx: + movl $DONT_USE_MMX, inflate_fast_use_mmx +.L_check_mmx_pop: + popl %edx + popl %ecx + popl %ebx + popl %eax + jmp .L_check_mmx +#endif + + +/*** Non-MMX code ***/ + +#if defined ( NO_MMX ) || defined( RUN_TIME_MMX ) + +#define hold_r %ebp +#define bits_r %bl +#define bitslong_r %ebx + +.align 32,0x90 +.L_while_test: + /* while (in < last && out < end) + */ + cmpl out_r, end(%esp) + jbe .L_break_loop /* if (out >= end) */ + + cmpl in_r, last(%esp) + jbe .L_break_loop + +.L_do_loop: + /* regs: %esi = in, %ebp = hold, %bl = bits, %edi = out + * + * do { + * if (bits < 15) { + * hold |= *((unsigned short *)in)++ << bits; + * bits += 16 + * } + * this = lcode[hold & lmask] + */ + cmpb $15, bits_r + ja .L_get_length_code /* if (15 < bits) */ + + xorl %eax, %eax + lodsw /* al = *(ushort *)in++ */ + movb bits_r, %cl /* cl = bits, needs it for shifting */ + addb $16, bits_r /* bits += 16 */ + shll %cl, %eax + orl %eax, hold_r /* hold |= *((ushort *)in)++ << bits */ + +.L_get_length_code: + movl lmask(%esp), %edx /* edx = lmask */ + movl lcode(%esp), %ecx /* ecx = lcode */ + andl hold_r, %edx /* edx &= hold */ + movl (%ecx,%edx,4), %eax /* eax = lcode[hold & lmask] */ + +.L_dolen: + /* regs: %esi = in, %ebp = hold, %bl = bits, %edi = out + * + * dolen: + * bits -= this.bits; + * hold >>= this.bits + */ + movb %ah, %cl /* cl = this.bits */ + subb %ah, bits_r /* bits -= this.bits */ + shrl %cl, hold_r /* hold >>= this.bits */ + + /* check if op is a literal + * if (op == 0) { + * PUP(out) = this.val; + * } + */ + testb %al, %al + jnz .L_test_for_length_base /* if (op != 0) 45.7% */ + + shrl $16, %eax /* output this.val char */ + stosb + jmp .L_while_test + +.L_test_for_length_base: + /* regs: %esi = in, %ebp = hold, %bl = bits, %edi = out, %edx = len + * + * else if (op & 16) { + * len = this.val + * op &= 15 + * if (op) { + * if (op > bits) { + * hold |= *((unsigned short *)in)++ << bits; + * bits += 16 + * } + * len += hold & mask[op]; + * bits -= op; + * hold >>= op; + * } + */ +#define len_r %edx + movl %eax, len_r /* len = this */ + shrl $16, len_r /* len = this.val */ + movb %al, %cl + + testb $16, %al + jz .L_test_for_second_level_length /* if ((op & 16) == 0) 8% */ + andb $15, %cl /* op &= 15 */ + jz .L_save_len /* if (!op) */ + cmpb %cl, bits_r + jae .L_add_bits_to_len /* if (op <= bits) */ + + movb %cl, %ch /* stash op in ch, freeing cl */ + xorl %eax, %eax + lodsw /* al = *(ushort *)in++ */ + movb bits_r, %cl /* cl = bits, needs it for shifting */ + addb $16, bits_r /* bits += 16 */ + shll %cl, %eax + orl %eax, hold_r /* hold |= *((ushort *)in)++ << bits */ + movb %ch, %cl /* move op back to ecx */ + +.L_add_bits_to_len: + movl $1, %eax + shll %cl, %eax + decl %eax + subb %cl, bits_r + andl hold_r, %eax /* eax &= hold */ + shrl %cl, hold_r + addl %eax, len_r /* len += hold & mask[op] */ + +.L_save_len: + movl len_r, len(%esp) /* save len */ +#undef len_r + +.L_decode_distance: + /* regs: %esi = in, %ebp = hold, %bl = bits, %edi = out, %edx = dist + * + * if (bits < 15) { + * hold |= *((unsigned short *)in)++ << bits; + * bits += 16 + * } + * this = dcode[hold & dmask]; + * dodist: + * bits -= this.bits; + * hold >>= this.bits; + * op = this.op; + */ + + cmpb $15, bits_r + ja .L_get_distance_code /* if (15 < bits) */ + + xorl %eax, %eax + lodsw /* al = *(ushort *)in++ */ + movb bits_r, %cl /* cl = bits, needs it for shifting */ + addb $16, bits_r /* bits += 16 */ + shll %cl, %eax + orl %eax, hold_r /* hold |= *((ushort *)in)++ << bits */ + +.L_get_distance_code: + movl dmask(%esp), %edx /* edx = dmask */ + movl dcode(%esp), %ecx /* ecx = dcode */ + andl hold_r, %edx /* edx &= hold */ + movl (%ecx,%edx,4), %eax /* eax = dcode[hold & dmask] */ + +#define dist_r %edx +.L_dodist: + movl %eax, dist_r /* dist = this */ + shrl $16, dist_r /* dist = this.val */ + movb %ah, %cl + subb %ah, bits_r /* bits -= this.bits */ + shrl %cl, hold_r /* hold >>= this.bits */ + + /* if (op & 16) { + * dist = this.val + * op &= 15 + * if (op > bits) { + * hold |= *((unsigned short *)in)++ << bits; + * bits += 16 + * } + * dist += hold & mask[op]; + * bits -= op; + * hold >>= op; + */ + movb %al, %cl /* cl = this.op */ + + testb $16, %al /* if ((op & 16) == 0) */ + jz .L_test_for_second_level_dist + andb $15, %cl /* op &= 15 */ + jz .L_check_dist_one + cmpb %cl, bits_r + jae .L_add_bits_to_dist /* if (op <= bits) 97.6% */ + + movb %cl, %ch /* stash op in ch, freeing cl */ + xorl %eax, %eax + lodsw /* al = *(ushort *)in++ */ + movb bits_r, %cl /* cl = bits, needs it for shifting */ + addb $16, bits_r /* bits += 16 */ + shll %cl, %eax + orl %eax, hold_r /* hold |= *((ushort *)in)++ << bits */ + movb %ch, %cl /* move op back to ecx */ + +.L_add_bits_to_dist: + movl $1, %eax + shll %cl, %eax + decl %eax /* (1 << op) - 1 */ + subb %cl, bits_r + andl hold_r, %eax /* eax &= hold */ + shrl %cl, hold_r + addl %eax, dist_r /* dist += hold & ((1 << op) - 1) */ + jmp .L_check_window + +.L_check_window: + /* regs: %esi = from, %ebp = hold, %bl = bits, %edi = out, %edx = dist + * %ecx = nbytes + * + * nbytes = out - beg; + * if (dist <= nbytes) { + * from = out - dist; + * do { + * PUP(out) = PUP(from); + * } while (--len > 0) { + * } + */ + + movl in_r, in(%esp) /* save in so from can use it's reg */ + movl out_r, %eax + subl beg(%esp), %eax /* nbytes = out - beg */ + + cmpl dist_r, %eax + jb .L_clip_window /* if (dist > nbytes) 4.2% */ + + movl len(%esp), %ecx + movl out_r, from_r + subl dist_r, from_r /* from = out - dist */ + + subl $3, %ecx + movb (from_r), %al + movb %al, (out_r) + movb 1(from_r), %al + movb 2(from_r), %dl + addl $3, from_r + movb %al, 1(out_r) + movb %dl, 2(out_r) + addl $3, out_r + rep movsb + + movl in(%esp), in_r /* move in back to %esi, toss from */ + jmp .L_while_test + +.align 16,0x90 +.L_check_dist_one: + cmpl $1, dist_r + jne .L_check_window + cmpl out_r, beg(%esp) + je .L_check_window + + decl out_r + movl len(%esp), %ecx + movb (out_r), %al + subl $3, %ecx + + movb %al, 1(out_r) + movb %al, 2(out_r) + movb %al, 3(out_r) + addl $4, out_r + rep stosb + + jmp .L_while_test + +.align 16,0x90 +.L_test_for_second_level_length: + /* else if ((op & 64) == 0) { + * this = lcode[this.val + (hold & mask[op])]; + * } + */ + testb $64, %al + jnz .L_test_for_end_of_block /* if ((op & 64) != 0) */ + + movl $1, %eax + shll %cl, %eax + decl %eax + andl hold_r, %eax /* eax &= hold */ + addl %edx, %eax /* eax += this.val */ + movl lcode(%esp), %edx /* edx = lcode */ + movl (%edx,%eax,4), %eax /* eax = lcode[val + (hold&mask[op])] */ + jmp .L_dolen + +.align 16,0x90 +.L_test_for_second_level_dist: + /* else if ((op & 64) == 0) { + * this = dcode[this.val + (hold & mask[op])]; + * } + */ + testb $64, %al + jnz .L_invalid_distance_code /* if ((op & 64) != 0) */ + + movl $1, %eax + shll %cl, %eax + decl %eax + andl hold_r, %eax /* eax &= hold */ + addl %edx, %eax /* eax += this.val */ + movl dcode(%esp), %edx /* edx = dcode */ + movl (%edx,%eax,4), %eax /* eax = dcode[val + (hold&mask[op])] */ + jmp .L_dodist + +.align 16,0x90 +.L_clip_window: + /* regs: %esi = from, %ebp = hold, %bl = bits, %edi = out, %edx = dist + * %ecx = nbytes + * + * else { + * if (dist > wsize) { + * invalid distance + * } + * from = window; + * nbytes = dist - nbytes; + * if (write == 0) { + * from += wsize - nbytes; + */ +#define nbytes_r %ecx + movl %eax, nbytes_r + movl wsize(%esp), %eax /* prepare for dist compare */ + negl nbytes_r /* nbytes = -nbytes */ + movl window(%esp), from_r /* from = window */ + + cmpl dist_r, %eax + jb .L_invalid_distance_too_far /* if (dist > wsize) */ + + addl dist_r, nbytes_r /* nbytes = dist - nbytes */ + cmpl $0, write(%esp) + jne .L_wrap_around_window /* if (write != 0) */ + + subl nbytes_r, %eax + addl %eax, from_r /* from += wsize - nbytes */ + + /* regs: %esi = from, %ebp = hold, %bl = bits, %edi = out, %edx = dist + * %ecx = nbytes, %eax = len + * + * if (nbytes < len) { + * len -= nbytes; + * do { + * PUP(out) = PUP(from); + * } while (--nbytes); + * from = out - dist; + * } + * } + */ +#define len_r %eax + movl len(%esp), len_r + cmpl nbytes_r, len_r + jbe .L_do_copy1 /* if (nbytes >= len) */ + + subl nbytes_r, len_r /* len -= nbytes */ + rep movsb + movl out_r, from_r + subl dist_r, from_r /* from = out - dist */ + jmp .L_do_copy1 + + cmpl nbytes_r, len_r + jbe .L_do_copy1 /* if (nbytes >= len) */ + + subl nbytes_r, len_r /* len -= nbytes */ + rep movsb + movl out_r, from_r + subl dist_r, from_r /* from = out - dist */ + jmp .L_do_copy1 + +.L_wrap_around_window: + /* regs: %esi = from, %ebp = hold, %bl = bits, %edi = out, %edx = dist + * %ecx = nbytes, %eax = write, %eax = len + * + * else if (write < nbytes) { + * from += wsize + write - nbytes; + * nbytes -= write; + * if (nbytes < len) { + * len -= nbytes; + * do { + * PUP(out) = PUP(from); + * } while (--nbytes); + * from = window; + * nbytes = write; + * if (nbytes < len) { + * len -= nbytes; + * do { + * PUP(out) = PUP(from); + * } while(--nbytes); + * from = out - dist; + * } + * } + * } + */ +#define write_r %eax + movl write(%esp), write_r + cmpl write_r, nbytes_r + jbe .L_contiguous_in_window /* if (write >= nbytes) */ + + addl wsize(%esp), from_r + addl write_r, from_r + subl nbytes_r, from_r /* from += wsize + write - nbytes */ + subl write_r, nbytes_r /* nbytes -= write */ +#undef write_r + + movl len(%esp), len_r + cmpl nbytes_r, len_r + jbe .L_do_copy1 /* if (nbytes >= len) */ + + subl nbytes_r, len_r /* len -= nbytes */ + rep movsb + movl window(%esp), from_r /* from = window */ + movl write(%esp), nbytes_r /* nbytes = write */ + cmpl nbytes_r, len_r + jbe .L_do_copy1 /* if (nbytes >= len) */ + + subl nbytes_r, len_r /* len -= nbytes */ + rep movsb + movl out_r, from_r + subl dist_r, from_r /* from = out - dist */ + jmp .L_do_copy1 + +.L_contiguous_in_window: + /* regs: %esi = from, %ebp = hold, %bl = bits, %edi = out, %edx = dist + * %ecx = nbytes, %eax = write, %eax = len + * + * else { + * from += write - nbytes; + * if (nbytes < len) { + * len -= nbytes; + * do { + * PUP(out) = PUP(from); + * } while (--nbytes); + * from = out - dist; + * } + * } + */ +#define write_r %eax + addl write_r, from_r + subl nbytes_r, from_r /* from += write - nbytes */ +#undef write_r + + movl len(%esp), len_r + cmpl nbytes_r, len_r + jbe .L_do_copy1 /* if (nbytes >= len) */ + + subl nbytes_r, len_r /* len -= nbytes */ + rep movsb + movl out_r, from_r + subl dist_r, from_r /* from = out - dist */ + +.L_do_copy1: + /* regs: %esi = from, %esi = in, %ebp = hold, %bl = bits, %edi = out + * %eax = len + * + * while (len > 0) { + * PUP(out) = PUP(from); + * len--; + * } + * } + * } while (in < last && out < end); + */ +#undef nbytes_r +#define in_r %esi + movl len_r, %ecx + rep movsb + + movl in(%esp), in_r /* move in back to %esi, toss from */ + jmp .L_while_test + +#undef len_r +#undef dist_r + +#endif /* NO_MMX || RUN_TIME_MMX */ + + +/*** MMX code ***/ + +#if defined( USE_MMX ) || defined( RUN_TIME_MMX ) + +.align 32,0x90 +.L_init_mmx: + emms + +#undef bits_r +#undef bitslong_r +#define bitslong_r %ebp +#define hold_mm %mm0 + movd %ebp, hold_mm + movl %ebx, bitslong_r + +#define used_mm %mm1 +#define dmask2_mm %mm2 +#define lmask2_mm %mm3 +#define lmask_mm %mm4 +#define dmask_mm %mm5 +#define tmp_mm %mm6 + + movd lmask(%esp), lmask_mm + movq lmask_mm, lmask2_mm + movd dmask(%esp), dmask_mm + movq dmask_mm, dmask2_mm + pxor used_mm, used_mm + movl lcode(%esp), %ebx /* ebx = lcode */ + jmp .L_do_loop_mmx + +.align 32,0x90 +.L_while_test_mmx: + /* while (in < last && out < end) + */ + cmpl out_r, end(%esp) + jbe .L_break_loop /* if (out >= end) */ + + cmpl in_r, last(%esp) + jbe .L_break_loop + +.L_do_loop_mmx: + psrlq used_mm, hold_mm /* hold_mm >>= last bit length */ + + cmpl $32, bitslong_r + ja .L_get_length_code_mmx /* if (32 < bits) */ + + movd bitslong_r, tmp_mm + movd (in_r), %mm7 + addl $4, in_r + psllq tmp_mm, %mm7 + addl $32, bitslong_r + por %mm7, hold_mm /* hold_mm |= *((uint *)in)++ << bits */ + +.L_get_length_code_mmx: + pand hold_mm, lmask_mm + movd lmask_mm, %eax + movq lmask2_mm, lmask_mm + movl (%ebx,%eax,4), %eax /* eax = lcode[hold & lmask] */ + +.L_dolen_mmx: + movzbl %ah, %ecx /* ecx = this.bits */ + movd %ecx, used_mm + subl %ecx, bitslong_r /* bits -= this.bits */ + + testb %al, %al + jnz .L_test_for_length_base_mmx /* if (op != 0) 45.7% */ + + shrl $16, %eax /* output this.val char */ + stosb + jmp .L_while_test_mmx + +.L_test_for_length_base_mmx: +#define len_r %edx + movl %eax, len_r /* len = this */ + shrl $16, len_r /* len = this.val */ + + testb $16, %al + jz .L_test_for_second_level_length_mmx /* if ((op & 16) == 0) 8% */ + andl $15, %eax /* op &= 15 */ + jz .L_decode_distance_mmx /* if (!op) */ + + psrlq used_mm, hold_mm /* hold_mm >>= last bit length */ + movd %eax, used_mm + movd hold_mm, %ecx + subl %eax, bitslong_r + andl .L_mask(,%eax,4), %ecx + addl %ecx, len_r /* len += hold & mask[op] */ + +.L_decode_distance_mmx: + psrlq used_mm, hold_mm /* hold_mm >>= last bit length */ + + cmpl $32, bitslong_r + ja .L_get_dist_code_mmx /* if (32 < bits) */ + + movd bitslong_r, tmp_mm + movd (in_r), %mm7 + addl $4, in_r + psllq tmp_mm, %mm7 + addl $32, bitslong_r + por %mm7, hold_mm /* hold_mm |= *((uint *)in)++ << bits */ + +.L_get_dist_code_mmx: + movl dcode(%esp), %ebx /* ebx = dcode */ + pand hold_mm, dmask_mm + movd dmask_mm, %eax + movq dmask2_mm, dmask_mm + movl (%ebx,%eax,4), %eax /* eax = dcode[hold & lmask] */ + +.L_dodist_mmx: +#define dist_r %ebx + movzbl %ah, %ecx /* ecx = this.bits */ + movl %eax, dist_r + shrl $16, dist_r /* dist = this.val */ + subl %ecx, bitslong_r /* bits -= this.bits */ + movd %ecx, used_mm + + testb $16, %al /* if ((op & 16) == 0) */ + jz .L_test_for_second_level_dist_mmx + andl $15, %eax /* op &= 15 */ + jz .L_check_dist_one_mmx + +.L_add_bits_to_dist_mmx: + psrlq used_mm, hold_mm /* hold_mm >>= last bit length */ + movd %eax, used_mm /* save bit length of current op */ + movd hold_mm, %ecx /* get the next bits on input stream */ + subl %eax, bitslong_r /* bits -= op bits */ + andl .L_mask(,%eax,4), %ecx /* ecx = hold & mask[op] */ + addl %ecx, dist_r /* dist += hold & mask[op] */ + +.L_check_window_mmx: + movl in_r, in(%esp) /* save in so from can use it's reg */ + movl out_r, %eax + subl beg(%esp), %eax /* nbytes = out - beg */ + + cmpl dist_r, %eax + jb .L_clip_window_mmx /* if (dist > nbytes) 4.2% */ + + movl len_r, %ecx + movl out_r, from_r + subl dist_r, from_r /* from = out - dist */ + + subl $3, %ecx + movb (from_r), %al + movb %al, (out_r) + movb 1(from_r), %al + movb 2(from_r), %dl + addl $3, from_r + movb %al, 1(out_r) + movb %dl, 2(out_r) + addl $3, out_r + rep movsb + + movl in(%esp), in_r /* move in back to %esi, toss from */ + movl lcode(%esp), %ebx /* move lcode back to %ebx, toss dist */ + jmp .L_while_test_mmx + +.align 16,0x90 +.L_check_dist_one_mmx: + cmpl $1, dist_r + jne .L_check_window_mmx + cmpl out_r, beg(%esp) + je .L_check_window_mmx + + decl out_r + movl len_r, %ecx + movb (out_r), %al + subl $3, %ecx + + movb %al, 1(out_r) + movb %al, 2(out_r) + movb %al, 3(out_r) + addl $4, out_r + rep stosb + + movl lcode(%esp), %ebx /* move lcode back to %ebx, toss dist */ + jmp .L_while_test_mmx + +.align 16,0x90 +.L_test_for_second_level_length_mmx: + testb $64, %al + jnz .L_test_for_end_of_block /* if ((op & 64) != 0) */ + + andl $15, %eax + psrlq used_mm, hold_mm /* hold_mm >>= last bit length */ + movd hold_mm, %ecx + andl .L_mask(,%eax,4), %ecx + addl len_r, %ecx + movl (%ebx,%ecx,4), %eax /* eax = lcode[hold & lmask] */ + jmp .L_dolen_mmx + +.align 16,0x90 +.L_test_for_second_level_dist_mmx: + testb $64, %al + jnz .L_invalid_distance_code /* if ((op & 64) != 0) */ + + andl $15, %eax + psrlq used_mm, hold_mm /* hold_mm >>= last bit length */ + movd hold_mm, %ecx + andl .L_mask(,%eax,4), %ecx + movl dcode(%esp), %eax /* ecx = dcode */ + addl dist_r, %ecx + movl (%eax,%ecx,4), %eax /* eax = lcode[hold & lmask] */ + jmp .L_dodist_mmx + +.align 16,0x90 +.L_clip_window_mmx: +#define nbytes_r %ecx + movl %eax, nbytes_r + movl wsize(%esp), %eax /* prepare for dist compare */ + negl nbytes_r /* nbytes = -nbytes */ + movl window(%esp), from_r /* from = window */ + + cmpl dist_r, %eax + jb .L_invalid_distance_too_far /* if (dist > wsize) */ + + addl dist_r, nbytes_r /* nbytes = dist - nbytes */ + cmpl $0, write(%esp) + jne .L_wrap_around_window_mmx /* if (write != 0) */ + + subl nbytes_r, %eax + addl %eax, from_r /* from += wsize - nbytes */ + + cmpl nbytes_r, len_r + jbe .L_do_copy1_mmx /* if (nbytes >= len) */ + + subl nbytes_r, len_r /* len -= nbytes */ + rep movsb + movl out_r, from_r + subl dist_r, from_r /* from = out - dist */ + jmp .L_do_copy1_mmx + + cmpl nbytes_r, len_r + jbe .L_do_copy1_mmx /* if (nbytes >= len) */ + + subl nbytes_r, len_r /* len -= nbytes */ + rep movsb + movl out_r, from_r + subl dist_r, from_r /* from = out - dist */ + jmp .L_do_copy1_mmx + +.L_wrap_around_window_mmx: +#define write_r %eax + movl write(%esp), write_r + cmpl write_r, nbytes_r + jbe .L_contiguous_in_window_mmx /* if (write >= nbytes) */ + + addl wsize(%esp), from_r + addl write_r, from_r + subl nbytes_r, from_r /* from += wsize + write - nbytes */ + subl write_r, nbytes_r /* nbytes -= write */ +#undef write_r + + cmpl nbytes_r, len_r + jbe .L_do_copy1_mmx /* if (nbytes >= len) */ + + subl nbytes_r, len_r /* len -= nbytes */ + rep movsb + movl window(%esp), from_r /* from = window */ + movl write(%esp), nbytes_r /* nbytes = write */ + cmpl nbytes_r, len_r + jbe .L_do_copy1_mmx /* if (nbytes >= len) */ + + subl nbytes_r, len_r /* len -= nbytes */ + rep movsb + movl out_r, from_r + subl dist_r, from_r /* from = out - dist */ + jmp .L_do_copy1_mmx + +.L_contiguous_in_window_mmx: +#define write_r %eax + addl write_r, from_r + subl nbytes_r, from_r /* from += write - nbytes */ +#undef write_r + + cmpl nbytes_r, len_r + jbe .L_do_copy1_mmx /* if (nbytes >= len) */ + + subl nbytes_r, len_r /* len -= nbytes */ + rep movsb + movl out_r, from_r + subl dist_r, from_r /* from = out - dist */ + +.L_do_copy1_mmx: +#undef nbytes_r +#define in_r %esi + movl len_r, %ecx + rep movsb + + movl in(%esp), in_r /* move in back to %esi, toss from */ + movl lcode(%esp), %ebx /* move lcode back to %ebx, toss dist */ + jmp .L_while_test_mmx + +#undef hold_r +#undef bitslong_r + +#endif /* USE_MMX || RUN_TIME_MMX */ + + +/*** USE_MMX, NO_MMX, and RUNTIME_MMX from here on ***/ + +.L_invalid_distance_code: + /* else { + * strm->msg = "invalid distance code"; + * state->mode = BAD; + * } + */ + movl $.L_invalid_distance_code_msg, %ecx + movl $INFLATE_MODE_BAD, %edx + jmp .L_update_stream_state + +.L_test_for_end_of_block: + /* else if (op & 32) { + * state->mode = TYPE; + * break; + * } + */ + testb $32, %al + jz .L_invalid_literal_length_code /* if ((op & 32) == 0) */ + + movl $0, %ecx + movl $INFLATE_MODE_TYPE, %edx + jmp .L_update_stream_state + +.L_invalid_literal_length_code: + /* else { + * strm->msg = "invalid literal/length code"; + * state->mode = BAD; + * } + */ + movl $.L_invalid_literal_length_code_msg, %ecx + movl $INFLATE_MODE_BAD, %edx + jmp .L_update_stream_state + +.L_invalid_distance_too_far: + /* strm->msg = "invalid distance too far back"; + * state->mode = BAD; + */ + movl in(%esp), in_r /* from_r has in's reg, put in back */ + movl $.L_invalid_distance_too_far_msg, %ecx + movl $INFLATE_MODE_BAD, %edx + jmp .L_update_stream_state + +.L_update_stream_state: + /* set strm->msg = %ecx, strm->state->mode = %edx */ + movl strm_sp(%esp), %eax + testl %ecx, %ecx /* if (msg != NULL) */ + jz .L_skip_msg + movl %ecx, msg_strm(%eax) /* strm->msg = msg */ +.L_skip_msg: + movl state_strm(%eax), %eax /* state = strm->state */ + movl %edx, mode_state(%eax) /* state->mode = edx (BAD | TYPE) */ + jmp .L_break_loop + +.align 32,0x90 +.L_break_loop: + +/* + * Regs: + * + * bits = %ebp when mmx, and in %ebx when non-mmx + * hold = %hold_mm when mmx, and in %ebp when non-mmx + * in = %esi + * out = %edi + */ + +#if defined( USE_MMX ) || defined( RUN_TIME_MMX ) + +#if defined( RUN_TIME_MMX ) + + cmpl $DO_USE_MMX, inflate_fast_use_mmx + jne .L_update_next_in + +#endif /* RUN_TIME_MMX */ + + movl %ebp, %ebx + +.L_update_next_in: + +#endif + +#define strm_r %eax +#define state_r %edx + + /* len = bits >> 3; + * in -= len; + * bits -= len << 3; + * hold &= (1U << bits) - 1; + * state->hold = hold; + * state->bits = bits; + * strm->next_in = in; + * strm->next_out = out; + */ + movl strm_sp(%esp), strm_r + movl %ebx, %ecx + movl state_strm(strm_r), state_r + shrl $3, %ecx + subl %ecx, in_r + shll $3, %ecx + subl %ecx, %ebx + movl out_r, next_out_strm(strm_r) + movl %ebx, bits_state(state_r) + movl %ebx, %ecx + + leal buf(%esp), %ebx + cmpl %ebx, last(%esp) + jne .L_buf_not_used /* if buf != last */ + + subl %ebx, in_r /* in -= buf */ + movl next_in_strm(strm_r), %ebx + movl %ebx, last(%esp) /* last = strm->next_in */ + addl %ebx, in_r /* in += strm->next_in */ + movl avail_in_strm(strm_r), %ebx + subl $11, %ebx + addl %ebx, last(%esp) /* last = &strm->next_in[ avail_in - 11 ] */ + +.L_buf_not_used: + movl in_r, next_in_strm(strm_r) + + movl $1, %ebx + shll %cl, %ebx + decl %ebx + +#if defined( USE_MMX ) || defined( RUN_TIME_MMX ) + +#if defined( RUN_TIME_MMX ) + + cmpl $DO_USE_MMX, inflate_fast_use_mmx + jne .L_update_hold + +#endif /* RUN_TIME_MMX */ + + psrlq used_mm, hold_mm /* hold_mm >>= last bit length */ + movd hold_mm, %ebp + + emms + +.L_update_hold: + +#endif /* USE_MMX || RUN_TIME_MMX */ + + andl %ebx, %ebp + movl %ebp, hold_state(state_r) + +#define last_r %ebx + + /* strm->avail_in = in < last ? 11 + (last - in) : 11 - (in - last) */ + movl last(%esp), last_r + cmpl in_r, last_r + jbe .L_last_is_smaller /* if (in >= last) */ + + subl in_r, last_r /* last -= in */ + addl $11, last_r /* last += 11 */ + movl last_r, avail_in_strm(strm_r) + jmp .L_fixup_out +.L_last_is_smaller: + subl last_r, in_r /* in -= last */ + negl in_r /* in = -in */ + addl $11, in_r /* in += 11 */ + movl in_r, avail_in_strm(strm_r) + +#undef last_r +#define end_r %ebx + +.L_fixup_out: + /* strm->avail_out = out < end ? 257 + (end - out) : 257 - (out - end)*/ + movl end(%esp), end_r + cmpl out_r, end_r + jbe .L_end_is_smaller /* if (out >= end) */ + + subl out_r, end_r /* end -= out */ + addl $257, end_r /* end += 257 */ + movl end_r, avail_out_strm(strm_r) + jmp .L_done +.L_end_is_smaller: + subl end_r, out_r /* out -= end */ + negl out_r /* out = -out */ + addl $257, out_r /* out += 257 */ + movl out_r, avail_out_strm(strm_r) + +#undef end_r +#undef strm_r +#undef state_r + +.L_done: + addl $local_var_size, %esp + popf + popl %ebx + popl %ebp + popl %esi + popl %edi + ret + +#if defined( GAS_ELF ) +/* elf info */ +.type inflate_fast,@function +.size inflate_fast,.-inflate_fast +#endif diff --git a/cpukit/zlib/contrib/iostream/test.cpp b/cpukit/zlib/contrib/iostream/test.cpp new file mode 100644 index 0000000000..7d265b3b5c --- /dev/null +++ b/cpukit/zlib/contrib/iostream/test.cpp @@ -0,0 +1,24 @@ + +#include "zfstream.h" + +int main() { + + // Construct a stream object with this filebuffer. Anything sent + // to this stream will go to standard out. + gzofstream os( 1, ios::out ); + + // This text is getting compressed and sent to stdout. + // To prove this, run 'test | zcat'. + os << "Hello, Mommy" << endl; + + os << setcompressionlevel( Z_NO_COMPRESSION ); + os << "hello, hello, hi, ho!" << endl; + + setcompressionlevel( os, Z_DEFAULT_COMPRESSION ) + << "I'm compressing again" << endl; + + os.close(); + + return 0; + +} diff --git a/cpukit/zlib/contrib/iostream/zfstream.cpp b/cpukit/zlib/contrib/iostream/zfstream.cpp new file mode 100644 index 0000000000..d0cd85faaf --- /dev/null +++ b/cpukit/zlib/contrib/iostream/zfstream.cpp @@ -0,0 +1,329 @@ + +#include "zfstream.h" + +gzfilebuf::gzfilebuf() : + file(NULL), + mode(0), + own_file_descriptor(0) +{ } + +gzfilebuf::~gzfilebuf() { + + sync(); + if ( own_file_descriptor ) + close(); + +} + +gzfilebuf *gzfilebuf::open( const char *name, + int io_mode ) { + + if ( is_open() ) + return NULL; + + char char_mode[10]; + char *p = char_mode; + + if ( io_mode & ios::in ) { + mode = ios::in; + *p++ = 'r'; + } else if ( io_mode & ios::app ) { + mode = ios::app; + *p++ = 'a'; + } else { + mode = ios::out; + *p++ = 'w'; + } + + if ( io_mode & ios::binary ) { + mode |= ios::binary; + *p++ = 'b'; + } + + // Hard code the compression level + if ( io_mode & (ios::out|ios::app )) { + *p++ = '9'; + } + + // Put the end-of-string indicator + *p = '\0'; + + if ( (file = gzopen(name, char_mode)) == NULL ) + return NULL; + + own_file_descriptor = 1; + + return this; + +} + +gzfilebuf *gzfilebuf::attach( int file_descriptor, + int io_mode ) { + + if ( is_open() ) + return NULL; + + char char_mode[10]; + char *p = char_mode; + + if ( io_mode & ios::in ) { + mode = ios::in; + *p++ = 'r'; + } else if ( io_mode & ios::app ) { + mode = ios::app; + *p++ = 'a'; + } else { + mode = ios::out; + *p++ = 'w'; + } + + if ( io_mode & ios::binary ) { + mode |= ios::binary; + *p++ = 'b'; + } + + // Hard code the compression level + if ( io_mode & (ios::out|ios::app )) { + *p++ = '9'; + } + + // Put the end-of-string indicator + *p = '\0'; + + if ( (file = gzdopen(file_descriptor, char_mode)) == NULL ) + return NULL; + + own_file_descriptor = 0; + + return this; + +} + +gzfilebuf *gzfilebuf::close() { + + if ( is_open() ) { + + sync(); + gzclose( file ); + file = NULL; + + } + + return this; + +} + +int gzfilebuf::setcompressionlevel( int comp_level ) { + + return gzsetparams(file, comp_level, -2); + +} + +int gzfilebuf::setcompressionstrategy( int comp_strategy ) { + + return gzsetparams(file, -2, comp_strategy); + +} + + +streampos gzfilebuf::seekoff( streamoff off, ios::seek_dir dir, int which ) { + + return streampos(EOF); + +} + +int gzfilebuf::underflow() { + + // If the file hasn't been opened for reading, error. + if ( !is_open() || !(mode & ios::in) ) + return EOF; + + // if a buffer doesn't exists, allocate one. + if ( !base() ) { + + if ( (allocate()) == EOF ) + return EOF; + setp(0,0); + + } else { + + if ( in_avail() ) + return (unsigned char) *gptr(); + + if ( out_waiting() ) { + if ( flushbuf() == EOF ) + return EOF; + } + + } + + // Attempt to fill the buffer. + + int result = fillbuf(); + if ( result == EOF ) { + // disable get area + setg(0,0,0); + return EOF; + } + + return (unsigned char) *gptr(); + +} + +int gzfilebuf::overflow( int c ) { + + if ( !is_open() || !(mode & ios::out) ) + return EOF; + + if ( !base() ) { + if ( allocate() == EOF ) + return EOF; + setg(0,0,0); + } else { + if (in_avail()) { + return EOF; + } + if (out_waiting()) { + if (flushbuf() == EOF) + return EOF; + } + } + + int bl = blen(); + setp( base(), base() + bl); + + if ( c != EOF ) { + + *pptr() = c; + pbump(1); + + } + + return 0; + +} + +int gzfilebuf::sync() { + + if ( !is_open() ) + return EOF; + + if ( out_waiting() ) + return flushbuf(); + + return 0; + +} + +int gzfilebuf::flushbuf() { + + int n; + char *q; + + q = pbase(); + n = pptr() - q; + + if ( gzwrite( file, q, n) < n ) + return EOF; + + setp(0,0); + + return 0; + +} + +int gzfilebuf::fillbuf() { + + int required; + char *p; + + p = base(); + + required = blen(); + + int t = gzread( file, p, required ); + + if ( t <= 0) return EOF; + + setg( base(), base(), base()+t); + + return t; + +} + +gzfilestream_common::gzfilestream_common() : + ios( gzfilestream_common::rdbuf() ) +{ } + +gzfilestream_common::~gzfilestream_common() +{ } + +void gzfilestream_common::attach( int fd, int io_mode ) { + + if ( !buffer.attach( fd, io_mode) ) + clear( ios::failbit | ios::badbit ); + else + clear(); + +} + +void gzfilestream_common::open( const char *name, int io_mode ) { + + if ( !buffer.open( name, io_mode ) ) + clear( ios::failbit | ios::badbit ); + else + clear(); + +} + +void gzfilestream_common::close() { + + if ( !buffer.close() ) + clear( ios::failbit | ios::badbit ); + +} + +gzfilebuf *gzfilestream_common::rdbuf() +{ + return &buffer; +} + +gzifstream::gzifstream() : + ios( gzfilestream_common::rdbuf() ) +{ + clear( ios::badbit ); +} + +gzifstream::gzifstream( const char *name, int io_mode ) : + ios( gzfilestream_common::rdbuf() ) +{ + gzfilestream_common::open( name, io_mode ); +} + +gzifstream::gzifstream( int fd, int io_mode ) : + ios( gzfilestream_common::rdbuf() ) +{ + gzfilestream_common::attach( fd, io_mode ); +} + +gzifstream::~gzifstream() { } + +gzofstream::gzofstream() : + ios( gzfilestream_common::rdbuf() ) +{ + clear( ios::badbit ); +} + +gzofstream::gzofstream( const char *name, int io_mode ) : + ios( gzfilestream_common::rdbuf() ) +{ + gzfilestream_common::open( name, io_mode ); +} + +gzofstream::gzofstream( int fd, int io_mode ) : + ios( gzfilestream_common::rdbuf() ) +{ + gzfilestream_common::attach( fd, io_mode ); +} + +gzofstream::~gzofstream() { } diff --git a/cpukit/zlib/contrib/iostream/zfstream.h b/cpukit/zlib/contrib/iostream/zfstream.h new file mode 100644 index 0000000000..ed79098a3a --- /dev/null +++ b/cpukit/zlib/contrib/iostream/zfstream.h @@ -0,0 +1,128 @@ + +#ifndef zfstream_h +#define zfstream_h + +#include +#include "zlib.h" + +class gzfilebuf : public streambuf { + +public: + + gzfilebuf( ); + virtual ~gzfilebuf(); + + gzfilebuf *open( const char *name, int io_mode ); + gzfilebuf *attach( int file_descriptor, int io_mode ); + gzfilebuf *close(); + + int setcompressionlevel( int comp_level ); + int setcompressionstrategy( int comp_strategy ); + + inline int is_open() const { return (file !=NULL); } + + virtual streampos seekoff( streamoff, ios::seek_dir, int ); + + virtual int sync(); + +protected: + + virtual int underflow(); + virtual int overflow( int = EOF ); + +private: + + gzFile file; + short mode; + short own_file_descriptor; + + int flushbuf(); + int fillbuf(); + +}; + +class gzfilestream_common : virtual public ios { + + friend class gzifstream; + friend class gzofstream; + friend gzofstream &setcompressionlevel( gzofstream &, int ); + friend gzofstream &setcompressionstrategy( gzofstream &, int ); + +public: + virtual ~gzfilestream_common(); + + void attach( int fd, int io_mode ); + void open( const char *name, int io_mode ); + void close(); + +protected: + gzfilestream_common(); + +private: + gzfilebuf *rdbuf(); + + gzfilebuf buffer; + +}; + +class gzifstream : public gzfilestream_common, public istream { + +public: + + gzifstream(); + gzifstream( const char *name, int io_mode = ios::in ); + gzifstream( int fd, int io_mode = ios::in ); + + virtual ~gzifstream(); + +}; + +class gzofstream : public gzfilestream_common, public ostream { + +public: + + gzofstream(); + gzofstream( const char *name, int io_mode = ios::out ); + gzofstream( int fd, int io_mode = ios::out ); + + virtual ~gzofstream(); + +}; + +template class gzomanip { + friend gzofstream &operator<<(gzofstream &, const gzomanip &); +public: + gzomanip(gzofstream &(*f)(gzofstream &, T), T v) : func(f), val(v) { } +private: + gzofstream &(*func)(gzofstream &, T); + T val; +}; + +template gzofstream &operator<<(gzofstream &s, const gzomanip &m) +{ + return (*m.func)(s, m.val); +} + +inline gzofstream &setcompressionlevel( gzofstream &s, int l ) +{ + (s.rdbuf())->setcompressionlevel(l); + return s; +} + +inline gzofstream &setcompressionstrategy( gzofstream &s, int l ) +{ + (s.rdbuf())->setcompressionstrategy(l); + return s; +} + +inline gzomanip setcompressionlevel(int l) +{ + return gzomanip(&setcompressionlevel,l); +} + +inline gzomanip setcompressionstrategy(int l) +{ + return gzomanip(&setcompressionstrategy,l); +} + +#endif diff --git a/cpukit/zlib/contrib/iostream2/zstream.h b/cpukit/zlib/contrib/iostream2/zstream.h new file mode 100644 index 0000000000..861ef2bad9 --- /dev/null +++ b/cpukit/zlib/contrib/iostream2/zstream.h @@ -0,0 +1,307 @@ +/* + * + * Copyright (c) 1997 + * Christian Michelsen Research AS + * Advanced Computing + * Fantoftvegen 38, 5036 BERGEN, Norway + * http://www.cmr.no + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Christian Michelsen Research AS makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + */ + +#ifndef ZSTREAM__H +#define ZSTREAM__H + +/* + * zstream.h - C++ interface to the 'zlib' general purpose compression library + * $Id$ + */ + +#include +#include +#include +#include "zlib.h" + +#if defined(_WIN32) +# include +# include +# define SET_BINARY_MODE(file) setmode(fileno(file), O_BINARY) +#else +# define SET_BINARY_MODE(file) +#endif + +class zstringlen { +public: + zstringlen(class izstream&); + zstringlen(class ozstream&, const char*); + size_t value() const { return val.word; } +private: + struct Val { unsigned char byte; size_t word; } val; +}; + +// ----------------------------- izstream ----------------------------- + +class izstream +{ + public: + izstream() : m_fp(0) {} + izstream(FILE* fp) : m_fp(0) { open(fp); } + izstream(const char* name) : m_fp(0) { open(name); } + ~izstream() { close(); } + + /* Opens a gzip (.gz) file for reading. + * open() can be used to read a file which is not in gzip format; + * in this case read() will directly read from the file without + * decompression. errno can be checked to distinguish two error + * cases (if errno is zero, the zlib error is Z_MEM_ERROR). + */ + void open(const char* name) { + if (m_fp) close(); + m_fp = ::gzopen(name, "rb"); + } + + void open(FILE* fp) { + SET_BINARY_MODE(fp); + if (m_fp) close(); + m_fp = ::gzdopen(fileno(fp), "rb"); + } + + /* Flushes all pending input if necessary, closes the compressed file + * and deallocates all the (de)compression state. The return value is + * the zlib error number (see function error() below). + */ + int close() { + int r = ::gzclose(m_fp); + m_fp = 0; return r; + } + + /* Binary read the given number of bytes from the compressed file. + */ + int read(void* buf, size_t len) { + return ::gzread(m_fp, buf, len); + } + + /* Returns the error message for the last error which occurred on the + * given compressed file. errnum is set to zlib error number. If an + * error occurred in the file system and not in the compression library, + * errnum is set to Z_ERRNO and the application may consult errno + * to get the exact error code. + */ + const char* error(int* errnum) { + return ::gzerror(m_fp, errnum); + } + + gzFile fp() { return m_fp; } + + private: + gzFile m_fp; +}; + +/* + * Binary read the given (array of) object(s) from the compressed file. + * If the input file was not in gzip format, read() copies the objects number + * of bytes into the buffer. + * returns the number of uncompressed bytes actually read + * (0 for end of file, -1 for error). + */ +template +inline int read(izstream& zs, T* x, Items items) { + return ::gzread(zs.fp(), x, items*sizeof(T)); +} + +/* + * Binary input with the '>' operator. + */ +template +inline izstream& operator>(izstream& zs, T& x) { + ::gzread(zs.fp(), &x, sizeof(T)); + return zs; +} + + +inline zstringlen::zstringlen(izstream& zs) { + zs > val.byte; + if (val.byte == 255) zs > val.word; + else val.word = val.byte; +} + +/* + * Read length of string + the string with the '>' operator. + */ +inline izstream& operator>(izstream& zs, char* x) { + zstringlen len(zs); + ::gzread(zs.fp(), x, len.value()); + x[len.value()] = '\0'; + return zs; +} + +inline char* read_string(izstream& zs) { + zstringlen len(zs); + char* x = new char[len.value()+1]; + ::gzread(zs.fp(), x, len.value()); + x[len.value()] = '\0'; + return x; +} + +// ----------------------------- ozstream ----------------------------- + +class ozstream +{ + public: + ozstream() : m_fp(0), m_os(0) { + } + ozstream(FILE* fp, int level = Z_DEFAULT_COMPRESSION) + : m_fp(0), m_os(0) { + open(fp, level); + } + ozstream(const char* name, int level = Z_DEFAULT_COMPRESSION) + : m_fp(0), m_os(0) { + open(name, level); + } + ~ozstream() { + close(); + } + + /* Opens a gzip (.gz) file for writing. + * The compression level parameter should be in 0..9 + * errno can be checked to distinguish two error cases + * (if errno is zero, the zlib error is Z_MEM_ERROR). + */ + void open(const char* name, int level = Z_DEFAULT_COMPRESSION) { + char mode[4] = "wb\0"; + if (level != Z_DEFAULT_COMPRESSION) mode[2] = '0'+level; + if (m_fp) close(); + m_fp = ::gzopen(name, mode); + } + + /* open from a FILE pointer. + */ + void open(FILE* fp, int level = Z_DEFAULT_COMPRESSION) { + SET_BINARY_MODE(fp); + char mode[4] = "wb\0"; + if (level != Z_DEFAULT_COMPRESSION) mode[2] = '0'+level; + if (m_fp) close(); + m_fp = ::gzdopen(fileno(fp), mode); + } + + /* Flushes all pending output if necessary, closes the compressed file + * and deallocates all the (de)compression state. The return value is + * the zlib error number (see function error() below). + */ + int close() { + if (m_os) { + ::gzwrite(m_fp, m_os->str(), m_os->pcount()); + delete[] m_os->str(); delete m_os; m_os = 0; + } + int r = ::gzclose(m_fp); m_fp = 0; return r; + } + + /* Binary write the given number of bytes into the compressed file. + */ + int write(const void* buf, size_t len) { + return ::gzwrite(m_fp, (voidp) buf, len); + } + + /* Flushes all pending output into the compressed file. The parameter + * _flush is as in the deflate() function. The return value is the zlib + * error number (see function gzerror below). flush() returns Z_OK if + * the flush_ parameter is Z_FINISH and all output could be flushed. + * flush() should be called only when strictly necessary because it can + * degrade compression. + */ + int flush(int _flush) { + os_flush(); + return ::gzflush(m_fp, _flush); + } + + /* Returns the error message for the last error which occurred on the + * given compressed file. errnum is set to zlib error number. If an + * error occurred in the file system and not in the compression library, + * errnum is set to Z_ERRNO and the application may consult errno + * to get the exact error code. + */ + const char* error(int* errnum) { + return ::gzerror(m_fp, errnum); + } + + gzFile fp() { return m_fp; } + + ostream& os() { + if (m_os == 0) m_os = new ostrstream; + return *m_os; + } + + void os_flush() { + if (m_os && m_os->pcount()>0) { + ostrstream* oss = new ostrstream; + oss->fill(m_os->fill()); + oss->flags(m_os->flags()); + oss->precision(m_os->precision()); + oss->width(m_os->width()); + ::gzwrite(m_fp, m_os->str(), m_os->pcount()); + delete[] m_os->str(); delete m_os; m_os = oss; + } + } + + private: + gzFile m_fp; + ostrstream* m_os; +}; + +/* + * Binary write the given (array of) object(s) into the compressed file. + * returns the number of uncompressed bytes actually written + * (0 in case of error). + */ +template +inline int write(ozstream& zs, const T* x, Items items) { + return ::gzwrite(zs.fp(), (voidp) x, items*sizeof(T)); +} + +/* + * Binary output with the '<' operator. + */ +template +inline ozstream& operator<(ozstream& zs, const T& x) { + ::gzwrite(zs.fp(), (voidp) &x, sizeof(T)); + return zs; +} + +inline zstringlen::zstringlen(ozstream& zs, const char* x) { + val.byte = 255; val.word = ::strlen(x); + if (val.word < 255) zs < (val.byte = val.word); + else zs < val; +} + +/* + * Write length of string + the string with the '<' operator. + */ +inline ozstream& operator<(ozstream& zs, const char* x) { + zstringlen len(zs, x); + ::gzwrite(zs.fp(), (voidp) x, len.value()); + return zs; +} + +#ifdef _MSC_VER +inline ozstream& operator<(ozstream& zs, char* const& x) { + return zs < (const char*) x; +} +#endif + +/* + * Ascii write with the << operator; + */ +template +inline ostream& operator<<(ozstream& zs, const T& x) { + zs.os_flush(); + return zs.os() << x; +} + +#endif diff --git a/cpukit/zlib/contrib/iostream2/zstream_test.cpp b/cpukit/zlib/contrib/iostream2/zstream_test.cpp new file mode 100644 index 0000000000..6273f62d62 --- /dev/null +++ b/cpukit/zlib/contrib/iostream2/zstream_test.cpp @@ -0,0 +1,25 @@ +#include "zstream.h" +#include +#include +#include + +void main() { + char h[256] = "Hello"; + char* g = "Goodbye"; + ozstream out("temp.gz"); + out < "This works well" < h < g; + out.close(); + + izstream in("temp.gz"); // read it back + char *x = read_string(in), *y = new char[256], z[256]; + in > y > z; + in.close(); + cout << x << endl << y << endl << z << endl; + + out.open("temp.gz"); // try ascii output; zcat temp.gz to see the results + out << setw(50) << setfill('#') << setprecision(20) << x << endl << y << endl << z << endl; + out << z << endl << y << endl << x << endl; + out << 1.1234567890123456789 << endl; + + delete[] x; delete[] y; +} diff --git a/cpukit/zlib/contrib/iostream3/README b/cpukit/zlib/contrib/iostream3/README new file mode 100644 index 0000000000..f7b319ab91 --- /dev/null +++ b/cpukit/zlib/contrib/iostream3/README @@ -0,0 +1,35 @@ +These classes provide a C++ stream interface to the zlib library. It allows you +to do things like: + + gzofstream outf("blah.gz"); + outf << "These go into the gzip file " << 123 << endl; + +It does this by deriving a specialized stream buffer for gzipped files, which is +the way Stroustrup would have done it. :-> + +The gzifstream and gzofstream classes were originally written by Kevin Ruland +and made available in the zlib contrib/iostream directory. The older version still +compiles under gcc 2.xx, but not under gcc 3.xx, which sparked the development of +this version. + +The new classes are as standard-compliant as possible, closely following the +approach of the standard library's fstream classes. It compiles under gcc versions +3.2 and 3.3, but not under gcc 2.xx. This is mainly due to changes in the standard +library naming scheme. The new version of gzifstream/gzofstream/gzfilebuf differs +from the previous one in the following respects: +- added showmanyc +- added setbuf, with support for unbuffered output via setbuf(0,0) +- a few bug fixes of stream behavior +- gzipped output file opened with default compression level instead of maximum level +- setcompressionlevel()/strategy() members replaced by single setcompression() + +The code is provided "as is", with the permission to use, copy, modify, distribute +and sell it for any purpose without fee. + +Ludwig Schwardt + + +DSP Lab +Electrical & Electronic Engineering Department +University of Stellenbosch +South Africa diff --git a/cpukit/zlib/contrib/iostream3/TODO b/cpukit/zlib/contrib/iostream3/TODO new file mode 100644 index 0000000000..7032f97be0 --- /dev/null +++ b/cpukit/zlib/contrib/iostream3/TODO @@ -0,0 +1,17 @@ +Possible upgrades to gzfilebuf: + +- The ability to do putback (e.g. putbackfail) + +- The ability to seek (zlib supports this, but could be slow/tricky) + +- Simultaneous read/write access (does it make sense?) + +- Support for ios_base::ate open mode + +- Locale support? + +- Check public interface to see which calls give problems + (due to dependence on library internals) + +- Override operator<<(ostream&, gzfilebuf*) to allow direct copying + of stream buffer to stream ( i.e. os << is.rdbuf(); ) diff --git a/cpukit/zlib/contrib/iostream3/test.cc b/cpukit/zlib/contrib/iostream3/test.cc new file mode 100644 index 0000000000..94235334f2 --- /dev/null +++ b/cpukit/zlib/contrib/iostream3/test.cc @@ -0,0 +1,50 @@ +/* + * Test program for gzifstream and gzofstream + * + * by Ludwig Schwardt + * original version by Kevin Ruland + */ + +#include "zfstream.h" +#include // for cout + +int main() { + + gzofstream outf; + gzifstream inf; + char buf[80]; + + outf.open("test1.txt.gz"); + outf << "The quick brown fox sidestepped the lazy canine\n" + << 1.3 << "\nPlan " << 9 << std::endl; + outf.close(); + std::cout << "Wrote the following message to 'test1.txt.gz' (check with zcat or zless):\n" + << "The quick brown fox sidestepped the lazy canine\n" + << 1.3 << "\nPlan " << 9 << std::endl; + + std::cout << "\nReading 'test1.txt.gz' (buffered) produces:\n"; + inf.open("test1.txt.gz"); + while (inf.getline(buf,80,'\n')) { + std::cout << buf << "\t(" << inf.rdbuf()->in_avail() << " chars left in buffer)\n"; + } + inf.close(); + + outf.rdbuf()->pubsetbuf(0,0); + outf.open("test2.txt.gz"); + outf << setcompression(Z_NO_COMPRESSION) + << "The quick brown fox sidestepped the lazy canine\n" + << 1.3 << "\nPlan " << 9 << std::endl; + outf.close(); + std::cout << "\nWrote the same message to 'test2.txt.gz' in uncompressed form"; + + std::cout << "\nReading 'test2.txt.gz' (unbuffered) produces:\n"; + inf.rdbuf()->pubsetbuf(0,0); + inf.open("test2.txt.gz"); + while (inf.getline(buf,80,'\n')) { + std::cout << buf << "\t(" << inf.rdbuf()->in_avail() << " chars left in buffer)\n"; + } + inf.close(); + + return 0; + +} diff --git a/cpukit/zlib/contrib/iostream3/zfstream.cc b/cpukit/zlib/contrib/iostream3/zfstream.cc new file mode 100644 index 0000000000..94eb933444 --- /dev/null +++ b/cpukit/zlib/contrib/iostream3/zfstream.cc @@ -0,0 +1,479 @@ +/* + * A C++ I/O streams interface to the zlib gz* functions + * + * by Ludwig Schwardt + * original version by Kevin Ruland + * + * This version is standard-compliant and compatible with gcc 3.x. + */ + +#include "zfstream.h" +#include // for strcpy, strcat, strlen (mode strings) +#include // for BUFSIZ + +// Internal buffer sizes (default and "unbuffered" versions) +#define BIGBUFSIZE BUFSIZ +#define SMALLBUFSIZE 1 + +/*****************************************************************************/ + +// Default constructor +gzfilebuf::gzfilebuf() +: file(NULL), io_mode(std::ios_base::openmode(0)), own_fd(false), + buffer(NULL), buffer_size(BIGBUFSIZE), own_buffer(true) +{ + // No buffers to start with + this->disable_buffer(); +} + +// Destructor +gzfilebuf::~gzfilebuf() +{ + // Sync output buffer and close only if responsible for file + // (i.e. attached streams should be left open at this stage) + this->sync(); + if (own_fd) + this->close(); + // Make sure internal buffer is deallocated + this->disable_buffer(); +} + +// Set compression level and strategy +int +gzfilebuf::setcompression(int comp_level, + int comp_strategy) +{ + return gzsetparams(file, comp_level, comp_strategy); +} + +// Open gzipped file +gzfilebuf* +gzfilebuf::open(const char *name, + std::ios_base::openmode mode) +{ + // Fail if file already open + if (this->is_open()) + return NULL; + // Don't support simultaneous read/write access (yet) + if ((mode & std::ios_base::in) && (mode & std::ios_base::out)) + return NULL; + + // Build mode string for gzopen and check it [27.8.1.3.2] + char char_mode[6] = "\0\0\0\0\0"; + if (!this->open_mode(mode, char_mode)) + return NULL; + + // Attempt to open file + if ((file = gzopen(name, char_mode)) == NULL) + return NULL; + + // On success, allocate internal buffer and set flags + this->enable_buffer(); + io_mode = mode; + own_fd = true; + return this; +} + +// Attach to gzipped file +gzfilebuf* +gzfilebuf::attach(int fd, + std::ios_base::openmode mode) +{ + // Fail if file already open + if (this->is_open()) + return NULL; + // Don't support simultaneous read/write access (yet) + if ((mode & std::ios_base::in) && (mode & std::ios_base::out)) + return NULL; + + // Build mode string for gzdopen and check it [27.8.1.3.2] + char char_mode[6] = "\0\0\0\0\0"; + if (!this->open_mode(mode, char_mode)) + return NULL; + + // Attempt to attach to file + if ((file = gzdopen(fd, char_mode)) == NULL) + return NULL; + + // On success, allocate internal buffer and set flags + this->enable_buffer(); + io_mode = mode; + own_fd = false; + return this; +} + +// Close gzipped file +gzfilebuf* +gzfilebuf::close() +{ + // Fail immediately if no file is open + if (!this->is_open()) + return NULL; + // Assume success + gzfilebuf* retval = this; + // Attempt to sync and close gzipped file + if (this->sync() == -1) + retval = NULL; + if (gzclose(file) < 0) + retval = NULL; + // File is now gone anyway (postcondition [27.8.1.3.8]) + file = NULL; + own_fd = false; + // Destroy internal buffer if it exists + this->disable_buffer(); + return retval; +} + +/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ + +// Convert int open mode to mode string +bool +gzfilebuf::open_mode(std::ios_base::openmode mode, + char* c_mode) const +{ + bool testb = mode & std::ios_base::binary; + bool testi = mode & std::ios_base::in; + bool testo = mode & std::ios_base::out; + bool testt = mode & std::ios_base::trunc; + bool testa = mode & std::ios_base::app; + + // Check for valid flag combinations - see [27.8.1.3.2] (Table 92) + // Original zfstream hardcoded the compression level to maximum here... + // Double the time for less than 1% size improvement seems + // excessive though - keeping it at the default level + // To change back, just append "9" to the next three mode strings + if (!testi && testo && !testt && !testa) + strcpy(c_mode, "w"); + if (!testi && testo && !testt && testa) + strcpy(c_mode, "a"); + if (!testi && testo && testt && !testa) + strcpy(c_mode, "w"); + if (testi && !testo && !testt && !testa) + strcpy(c_mode, "r"); + // No read/write mode yet +// if (testi && testo && !testt && !testa) +// strcpy(c_mode, "r+"); +// if (testi && testo && testt && !testa) +// strcpy(c_mode, "w+"); + + // Mode string should be empty for invalid combination of flags + if (strlen(c_mode) == 0) + return false; + if (testb) + strcat(c_mode, "b"); + return true; +} + +// Determine number of characters in internal get buffer +std::streamsize +gzfilebuf::showmanyc() +{ + // Calls to underflow will fail if file not opened for reading + if (!this->is_open() || !(io_mode & std::ios_base::in)) + return -1; + // Make sure get area is in use + if (this->gptr() && (this->gptr() < this->egptr())) + return std::streamsize(this->egptr() - this->gptr()); + else + return 0; +} + +// Fill get area from gzipped file +gzfilebuf::int_type +gzfilebuf::underflow() +{ + // If something is left in the get area by chance, return it + // (this shouldn't normally happen, as underflow is only supposed + // to be called when gptr >= egptr, but it serves as error check) + if (this->gptr() && (this->gptr() < this->egptr())) + return traits_type::to_int_type(*(this->gptr())); + + // If the file hasn't been opened for reading, produce error + if (!this->is_open() || !(io_mode & std::ios_base::in)) + return traits_type::eof(); + + // Attempt to fill internal buffer from gzipped file + // (buffer must be guaranteed to exist...) + int bytes_read = gzread(file, buffer, buffer_size); + // Indicates error or EOF + if (bytes_read <= 0) + { + // Reset get area + this->setg(buffer, buffer, buffer); + return traits_type::eof(); + } + // Make all bytes read from file available as get area + this->setg(buffer, buffer, buffer + bytes_read); + + // Return next character in get area + return traits_type::to_int_type(*(this->gptr())); +} + +// Write put area to gzipped file +gzfilebuf::int_type +gzfilebuf::overflow(int_type c) +{ + // Determine whether put area is in use + if (this->pbase()) + { + // Double-check pointer range + if (this->pptr() > this->epptr() || this->pptr() < this->pbase()) + return traits_type::eof(); + // Add extra character to buffer if not EOF + if (!traits_type::eq_int_type(c, traits_type::eof())) + { + *(this->pptr()) = traits_type::to_char_type(c); + this->pbump(1); + } + // Number of characters to write to file + int bytes_to_write = this->pptr() - this->pbase(); + // Overflow doesn't fail if nothing is to be written + if (bytes_to_write > 0) + { + // If the file hasn't been opened for writing, produce error + if (!this->is_open() || !(io_mode & std::ios_base::out)) + return traits_type::eof(); + // If gzipped file won't accept all bytes written to it, fail + if (gzwrite(file, this->pbase(), bytes_to_write) != bytes_to_write) + return traits_type::eof(); + // Reset next pointer to point to pbase on success + this->pbump(-bytes_to_write); + } + } + // Write extra character to file if not EOF + else if (!traits_type::eq_int_type(c, traits_type::eof())) + { + // If the file hasn't been opened for writing, produce error + if (!this->is_open() || !(io_mode & std::ios_base::out)) + return traits_type::eof(); + // Impromptu char buffer (allows "unbuffered" output) + char_type last_char = traits_type::to_char_type(c); + // If gzipped file won't accept this character, fail + if (gzwrite(file, &last_char, 1) != 1) + return traits_type::eof(); + } + + // If you got here, you have succeeded (even if c was EOF) + // The return value should therefore be non-EOF + if (traits_type::eq_int_type(c, traits_type::eof())) + return traits_type::not_eof(c); + else + return c; +} + +// Assign new buffer +std::streambuf* +gzfilebuf::setbuf(char_type* p, + std::streamsize n) +{ + // First make sure stuff is sync'ed, for safety + if (this->sync() == -1) + return NULL; + // If buffering is turned off on purpose via setbuf(0,0), still allocate one... + // "Unbuffered" only really refers to put [27.8.1.4.10], while get needs at + // least a buffer of size 1 (very inefficient though, therefore make it bigger?) + // This follows from [27.5.2.4.3]/12 (gptr needs to point at something, it seems) + if (!p || !n) + { + // Replace existing buffer (if any) with small internal buffer + this->disable_buffer(); + buffer = NULL; + buffer_size = 0; + own_buffer = true; + this->enable_buffer(); + } + else + { + // Replace existing buffer (if any) with external buffer + this->disable_buffer(); + buffer = p; + buffer_size = n; + own_buffer = false; + this->enable_buffer(); + } + return this; +} + +// Write put area to gzipped file (i.e. ensures that put area is empty) +int +gzfilebuf::sync() +{ + return traits_type::eq_int_type(this->overflow(), traits_type::eof()) ? -1 : 0; +} + +/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ + +// Allocate internal buffer +void +gzfilebuf::enable_buffer() +{ + // If internal buffer required, allocate one + if (own_buffer && !buffer) + { + // Check for buffered vs. "unbuffered" + if (buffer_size > 0) + { + // Allocate internal buffer + buffer = new char_type[buffer_size]; + // Get area starts empty and will be expanded by underflow as need arises + this->setg(buffer, buffer, buffer); + // Setup entire internal buffer as put area. + // The one-past-end pointer actually points to the last element of the buffer, + // so that overflow(c) can safely add the extra character c to the sequence. + // These pointers remain in place for the duration of the buffer + this->setp(buffer, buffer + buffer_size - 1); + } + else + { + // Even in "unbuffered" case, (small?) get buffer is still required + buffer_size = SMALLBUFSIZE; + buffer = new char_type[buffer_size]; + this->setg(buffer, buffer, buffer); + // "Unbuffered" means no put buffer + this->setp(0, 0); + } + } + else + { + // If buffer already allocated, reset buffer pointers just to make sure no + // stale chars are lying around + this->setg(buffer, buffer, buffer); + this->setp(buffer, buffer + buffer_size - 1); + } +} + +// Destroy internal buffer +void +gzfilebuf::disable_buffer() +{ + // If internal buffer exists, deallocate it + if (own_buffer && buffer) + { + // Preserve unbuffered status by zeroing size + if (!this->pbase()) + buffer_size = 0; + delete[] buffer; + buffer = NULL; + this->setg(0, 0, 0); + this->setp(0, 0); + } + else + { + // Reset buffer pointers to initial state if external buffer exists + this->setg(buffer, buffer, buffer); + if (buffer) + this->setp(buffer, buffer + buffer_size - 1); + else + this->setp(0, 0); + } +} + +/*****************************************************************************/ + +// Default constructor initializes stream buffer +gzifstream::gzifstream() +: std::istream(NULL), sb() +{ this->init(&sb); } + +// Initialize stream buffer and open file +gzifstream::gzifstream(const char* name, + std::ios_base::openmode mode) +: std::istream(NULL), sb() +{ + this->init(&sb); + this->open(name, mode); +} + +// Initialize stream buffer and attach to file +gzifstream::gzifstream(int fd, + std::ios_base::openmode mode) +: std::istream(NULL), sb() +{ + this->init(&sb); + this->attach(fd, mode); +} + +// Open file and go into fail() state if unsuccessful +void +gzifstream::open(const char* name, + std::ios_base::openmode mode) +{ + if (!sb.open(name, mode | std::ios_base::in)) + this->setstate(std::ios_base::failbit); + else + this->clear(); +} + +// Attach to file and go into fail() state if unsuccessful +void +gzifstream::attach(int fd, + std::ios_base::openmode mode) +{ + if (!sb.attach(fd, mode | std::ios_base::in)) + this->setstate(std::ios_base::failbit); + else + this->clear(); +} + +// Close file +void +gzifstream::close() +{ + if (!sb.close()) + this->setstate(std::ios_base::failbit); +} + +/*****************************************************************************/ + +// Default constructor initializes stream buffer +gzofstream::gzofstream() +: std::ostream(NULL), sb() +{ this->init(&sb); } + +// Initialize stream buffer and open file +gzofstream::gzofstream(const char* name, + std::ios_base::openmode mode) +: std::ostream(NULL), sb() +{ + this->init(&sb); + this->open(name, mode); +} + +// Initialize stream buffer and attach to file +gzofstream::gzofstream(int fd, + std::ios_base::openmode mode) +: std::ostream(NULL), sb() +{ + this->init(&sb); + this->attach(fd, mode); +} + +// Open file and go into fail() state if unsuccessful +void +gzofstream::open(const char* name, + std::ios_base::openmode mode) +{ + if (!sb.open(name, mode | std::ios_base::out)) + this->setstate(std::ios_base::failbit); + else + this->clear(); +} + +// Attach to file and go into fail() state if unsuccessful +void +gzofstream::attach(int fd, + std::ios_base::openmode mode) +{ + if (!sb.attach(fd, mode | std::ios_base::out)) + this->setstate(std::ios_base::failbit); + else + this->clear(); +} + +// Close file +void +gzofstream::close() +{ + if (!sb.close()) + this->setstate(std::ios_base::failbit); +} diff --git a/cpukit/zlib/contrib/iostream3/zfstream.h b/cpukit/zlib/contrib/iostream3/zfstream.h new file mode 100644 index 0000000000..8574479ae1 --- /dev/null +++ b/cpukit/zlib/contrib/iostream3/zfstream.h @@ -0,0 +1,466 @@ +/* + * A C++ I/O streams interface to the zlib gz* functions + * + * by Ludwig Schwardt + * original version by Kevin Ruland + * + * This version is standard-compliant and compatible with gcc 3.x. + */ + +#ifndef ZFSTREAM_H +#define ZFSTREAM_H + +#include // not iostream, since we don't need cin/cout +#include +#include "zlib.h" + +/*****************************************************************************/ + +/** + * @brief Gzipped file stream buffer class. + * + * This class implements basic_filebuf for gzipped files. It doesn't yet support + * seeking (allowed by zlib but slow/limited), putback and read/write access + * (tricky). Otherwise, it attempts to be a drop-in replacement for the standard + * file streambuf. +*/ +class gzfilebuf : public std::streambuf +{ +public: + // Default constructor. + gzfilebuf(); + + // Destructor. + virtual + ~gzfilebuf(); + + /** + * @brief Set compression level and strategy on the fly. + * @param comp_level Compression level (see zlib.h for allowed values) + * @param comp_strategy Compression strategy (see zlib.h for allowed values) + * @return Z_OK on success, Z_STREAM_ERROR otherwise. + * + * Unfortunately, these parameters cannot be modified separately, as the + * previous zfstream version assumed. Since the strategy is seldom changed, + * it can default and setcompression(level) then becomes like the old + * setcompressionlevel(level). + */ + int + setcompression(int comp_level, + int comp_strategy = Z_DEFAULT_STRATEGY); + + /** + * @brief Check if file is open. + * @return True if file is open. + */ + bool + is_open() const { return (file != NULL); } + + /** + * @brief Open gzipped file. + * @param name File name. + * @param mode Open mode flags. + * @return @c this on success, NULL on failure. + */ + gzfilebuf* + open(const char* name, + std::ios_base::openmode mode); + + /** + * @brief Attach to already open gzipped file. + * @param fd File descriptor. + * @param mode Open mode flags. + * @return @c this on success, NULL on failure. + */ + gzfilebuf* + attach(int fd, + std::ios_base::openmode mode); + + /** + * @brief Close gzipped file. + * @return @c this on success, NULL on failure. + */ + gzfilebuf* + close(); + +protected: + /** + * @brief Convert ios open mode int to mode string used by zlib. + * @return True if valid mode flag combination. + */ + bool + open_mode(std::ios_base::openmode mode, + char* c_mode) const; + + /** + * @brief Number of characters available in stream buffer. + * @return Number of characters. + * + * This indicates number of characters in get area of stream buffer. + * These characters can be read without accessing the gzipped file. + */ + virtual std::streamsize + showmanyc(); + + /** + * @brief Fill get area from gzipped file. + * @return First character in get area on success, EOF on error. + * + * This actually reads characters from gzipped file to stream + * buffer. Always buffered. + */ + virtual int_type + underflow(); + + /** + * @brief Write put area to gzipped file. + * @param c Extra character to add to buffer contents. + * @return Non-EOF on success, EOF on error. + * + * This actually writes characters in stream buffer to + * gzipped file. With unbuffered output this is done one + * character at a time. + */ + virtual int_type + overflow(int_type c = traits_type::eof()); + + /** + * @brief Installs external stream buffer. + * @param p Pointer to char buffer. + * @param n Size of external buffer. + * @return @c this on success, NULL on failure. + * + * Call setbuf(0,0) to enable unbuffered output. + */ + virtual std::streambuf* + setbuf(char_type* p, + std::streamsize n); + + /** + * @brief Flush stream buffer to file. + * @return 0 on success, -1 on error. + * + * This calls underflow(EOF) to do the job. + */ + virtual int + sync(); + +// +// Some future enhancements +// +// virtual int_type uflow(); +// virtual int_type pbackfail(int_type c = traits_type::eof()); +// virtual pos_type +// seekoff(off_type off, +// std::ios_base::seekdir way, +// std::ios_base::openmode mode = std::ios_base::in|std::ios_base::out); +// virtual pos_type +// seekpos(pos_type sp, +// std::ios_base::openmode mode = std::ios_base::in|std::ios_base::out); + +private: + /** + * @brief Allocate internal buffer. + * + * This function is safe to call multiple times. It will ensure + * that a proper internal buffer exists if it is required. If the + * buffer already exists or is external, the buffer pointers will be + * reset to their original state. + */ + void + enable_buffer(); + + /** + * @brief Destroy internal buffer. + * + * This function is safe to call multiple times. It will ensure + * that the internal buffer is deallocated if it exists. In any + * case, it will also reset the buffer pointers. + */ + void + disable_buffer(); + + /** + * Underlying file pointer. + */ + gzFile file; + + /** + * Mode in which file was opened. + */ + std::ios_base::openmode io_mode; + + /** + * @brief True if this object owns file descriptor. + * + * This makes the class responsible for closing the file + * upon destruction. + */ + bool own_fd; + + /** + * @brief Stream buffer. + * + * For simplicity this remains allocated on the free store for the + * entire life span of the gzfilebuf object, unless replaced by setbuf. + */ + char_type* buffer; + + /** + * @brief Stream buffer size. + * + * Defaults to system default buffer size (typically 8192 bytes). + * Modified by setbuf. + */ + std::streamsize buffer_size; + + /** + * @brief True if this object owns stream buffer. + * + * This makes the class responsible for deleting the buffer + * upon destruction. + */ + bool own_buffer; +}; + +/*****************************************************************************/ + +/** + * @brief Gzipped file input stream class. + * + * This class implements ifstream for gzipped files. Seeking and putback + * is not supported yet. +*/ +class gzifstream : public std::istream +{ +public: + // Default constructor + gzifstream(); + + /** + * @brief Construct stream on gzipped file to be opened. + * @param name File name. + * @param mode Open mode flags (forced to contain ios::in). + */ + explicit + gzifstream(const char* name, + std::ios_base::openmode mode = std::ios_base::in); + + /** + * @brief Construct stream on already open gzipped file. + * @param fd File descriptor. + * @param mode Open mode flags (forced to contain ios::in). + */ + explicit + gzifstream(int fd, + std::ios_base::openmode mode = std::ios_base::in); + + /** + * Obtain underlying stream buffer. + */ + gzfilebuf* + rdbuf() const + { return const_cast(&sb); } + + /** + * @brief Check if file is open. + * @return True if file is open. + */ + bool + is_open() { return sb.is_open(); } + + /** + * @brief Open gzipped file. + * @param name File name. + * @param mode Open mode flags (forced to contain ios::in). + * + * Stream will be in state good() if file opens successfully; + * otherwise in state fail(). This differs from the behavior of + * ifstream, which never sets the state to good() and therefore + * won't allow you to reuse the stream for a second file unless + * you manually clear() the state. The choice is a matter of + * convenience. + */ + void + open(const char* name, + std::ios_base::openmode mode = std::ios_base::in); + + /** + * @brief Attach to already open gzipped file. + * @param fd File descriptor. + * @param mode Open mode flags (forced to contain ios::in). + * + * Stream will be in state good() if attach succeeded; otherwise + * in state fail(). + */ + void + attach(int fd, + std::ios_base::openmode mode = std::ios_base::in); + + /** + * @brief Close gzipped file. + * + * Stream will be in state fail() if close failed. + */ + void + close(); + +private: + /** + * Underlying stream buffer. + */ + gzfilebuf sb; +}; + +/*****************************************************************************/ + +/** + * @brief Gzipped file output stream class. + * + * This class implements ofstream for gzipped files. Seeking and putback + * is not supported yet. +*/ +class gzofstream : public std::ostream +{ +public: + // Default constructor + gzofstream(); + + /** + * @brief Construct stream on gzipped file to be opened. + * @param name File name. + * @param mode Open mode flags (forced to contain ios::out). + */ + explicit + gzofstream(const char* name, + std::ios_base::openmode mode = std::ios_base::out); + + /** + * @brief Construct stream on already open gzipped file. + * @param fd File descriptor. + * @param mode Open mode flags (forced to contain ios::out). + */ + explicit + gzofstream(int fd, + std::ios_base::openmode mode = std::ios_base::out); + + /** + * Obtain underlying stream buffer. + */ + gzfilebuf* + rdbuf() const + { return const_cast(&sb); } + + /** + * @brief Check if file is open. + * @return True if file is open. + */ + bool + is_open() { return sb.is_open(); } + + /** + * @brief Open gzipped file. + * @param name File name. + * @param mode Open mode flags (forced to contain ios::out). + * + * Stream will be in state good() if file opens successfully; + * otherwise in state fail(). This differs from the behavior of + * ofstream, which never sets the state to good() and therefore + * won't allow you to reuse the stream for a second file unless + * you manually clear() the state. The choice is a matter of + * convenience. + */ + void + open(const char* name, + std::ios_base::openmode mode = std::ios_base::out); + + /** + * @brief Attach to already open gzipped file. + * @param fd File descriptor. + * @param mode Open mode flags (forced to contain ios::out). + * + * Stream will be in state good() if attach succeeded; otherwise + * in state fail(). + */ + void + attach(int fd, + std::ios_base::openmode mode = std::ios_base::out); + + /** + * @brief Close gzipped file. + * + * Stream will be in state fail() if close failed. + */ + void + close(); + +private: + /** + * Underlying stream buffer. + */ + gzfilebuf sb; +}; + +/*****************************************************************************/ + +/** + * @brief Gzipped file output stream manipulator class. + * + * This class defines a two-argument manipulator for gzofstream. It is used + * as base for the setcompression(int,int) manipulator. +*/ +template + class gzomanip2 + { + public: + // Allows insertor to peek at internals + template + friend gzofstream& + operator<<(gzofstream&, + const gzomanip2&); + + // Constructor + gzomanip2(gzofstream& (*f)(gzofstream&, T1, T2), + T1 v1, + T2 v2); + private: + // Underlying manipulator function + gzofstream& + (*func)(gzofstream&, T1, T2); + + // Arguments for manipulator function + T1 val1; + T2 val2; + }; + +/*****************************************************************************/ + +// Manipulator function thunks through to stream buffer +inline gzofstream& +setcompression(gzofstream &gzs, int l, int s = Z_DEFAULT_STRATEGY) +{ + (gzs.rdbuf())->setcompression(l, s); + return gzs; +} + +// Manipulator constructor stores arguments +template + inline + gzomanip2::gzomanip2(gzofstream &(*f)(gzofstream &, T1, T2), + T1 v1, + T2 v2) + : func(f), val1(v1), val2(v2) + { } + +// Insertor applies underlying manipulator function to stream +template + inline gzofstream& + operator<<(gzofstream& s, const gzomanip2& m) + { return (*m.func)(s, m.val1, m.val2); } + +// Insert this onto stream to simplify setting of compression level +inline gzomanip2 +setcompression(int l, int s = Z_DEFAULT_STRATEGY) +{ return gzomanip2(&setcompression, l, s); } + +#endif // ZFSTREAM_H diff --git a/cpukit/zlib/contrib/masm686/match.asm b/cpukit/zlib/contrib/masm686/match.asm new file mode 100644 index 0000000000..2287804d44 --- /dev/null +++ b/cpukit/zlib/contrib/masm686/match.asm @@ -0,0 +1,408 @@ + +; match.asm -- Pentium-Pro optimized version of longest_match() +; +; Updated for zlib 1.1.3 and converted to MASM 6.1x +; Copyright (C) 2000 Dan Higdon +; and Chuck Walbourn +; Corrections by Cosmin Truta +; +; This is free software; you can redistribute it and/or modify it +; under the terms of the GNU General Public License. + +; Based on match.S +; Written for zlib 1.1.2 +; Copyright (C) 1998 Brian Raiter + + .686P + .MODEL FLAT + +;=========================================================================== +; EQUATES +;=========================================================================== + +MAX_MATCH EQU 258 +MIN_MATCH EQU 3 +MIN_LOOKAHEAD EQU (MAX_MATCH + MIN_MATCH + 1) +MAX_MATCH_8 EQU ((MAX_MATCH + 7) AND (NOT 7)) + +;=========================================================================== +; STRUCTURES +;=========================================================================== + +; This STRUCT assumes a 4-byte alignment + +DEFLATE_STATE STRUCT +ds_strm dd ? +ds_status dd ? +ds_pending_buf dd ? +ds_pending_buf_size dd ? +ds_pending_out dd ? +ds_pending dd ? +ds_wrap dd ? +ds_data_type db ? +ds_method db ? + db ? ; padding + db ? ; padding +ds_last_flush dd ? +ds_w_size dd ? ; used +ds_w_bits dd ? +ds_w_mask dd ? ; used +ds_window dd ? ; used +ds_window_size dd ? +ds_prev dd ? ; used +ds_head dd ? +ds_ins_h dd ? +ds_hash_size dd ? +ds_hash_bits dd ? +ds_hash_mask dd ? +ds_hash_shift dd ? +ds_block_start dd ? +ds_match_length dd ? ; used +ds_prev_match dd ? ; used +ds_match_available dd ? +ds_strstart dd ? ; used +ds_match_start dd ? ; used +ds_lookahead dd ? ; used +ds_prev_length dd ? ; used +ds_max_chain_length dd ? ; used +ds_max_laxy_match dd ? +ds_level dd ? +ds_strategy dd ? +ds_good_match dd ? ; used +ds_nice_match dd ? ; used + +; Don't need anymore of the struct for match +DEFLATE_STATE ENDS + +;=========================================================================== +; CODE +;=========================================================================== +_TEXT SEGMENT + +;--------------------------------------------------------------------------- +; match_init +;--------------------------------------------------------------------------- + ALIGN 4 +PUBLIC _match_init +_match_init PROC + ; no initialization needed + ret +_match_init ENDP + +;--------------------------------------------------------------------------- +; uInt longest_match(deflate_state *deflatestate, IPos curmatch) +;--------------------------------------------------------------------------- + ALIGN 4 + +PUBLIC _longest_match +_longest_match PROC + +; Since this code uses EBP for a scratch register, the stack frame must +; be manually constructed and referenced relative to the ESP register. + +; Stack image +; Variables +chainlenwmask = 0 ; high word: current chain len + ; low word: s->wmask +window = 4 ; local copy of s->window +windowbestlen = 8 ; s->window + bestlen +scanend = 12 ; last two bytes of string +scanstart = 16 ; first two bytes of string +scanalign = 20 ; dword-misalignment of string +nicematch = 24 ; a good enough match size +bestlen = 28 ; size of best match so far +scan = 32 ; ptr to string wanting match +varsize = 36 ; number of bytes (also offset to last saved register) + +; Saved Registers (actually pushed into place) +ebx_save = 36 +edi_save = 40 +esi_save = 44 +ebp_save = 48 + +; Parameters +retaddr = 52 +deflatestate = 56 +curmatch = 60 + +; Save registers that the compiler may be using + push ebp + push edi + push esi + push ebx + +; Allocate local variable space + sub esp,varsize + +; Retrieve the function arguments. ecx will hold cur_match +; throughout the entire function. edx will hold the pointer to the +; deflate_state structure during the function's setup (before +; entering the main loop). + + mov edx, [esp+deflatestate] +ASSUME edx:PTR DEFLATE_STATE + + mov ecx, [esp+curmatch] + +; uInt wmask = s->w_mask; +; unsigned chain_length = s->max_chain_length; +; if (s->prev_length >= s->good_match) { +; chain_length >>= 2; +; } + + mov eax, [edx].ds_prev_length + mov ebx, [edx].ds_good_match + cmp eax, ebx + mov eax, [edx].ds_w_mask + mov ebx, [edx].ds_max_chain_length + jl SHORT LastMatchGood + shr ebx, 2 +LastMatchGood: + +; chainlen is decremented once beforehand so that the function can +; use the sign flag instead of the zero flag for the exit test. +; It is then shifted into the high word, to make room for the wmask +; value, which it will always accompany. + + dec ebx + shl ebx, 16 + or ebx, eax + mov [esp+chainlenwmask], ebx + +; if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead; + + mov eax, [edx].ds_nice_match + mov ebx, [edx].ds_lookahead + cmp ebx, eax + jl SHORT LookaheadLess + mov ebx, eax +LookaheadLess: + mov [esp+nicematch], ebx + +;/* register Bytef *scan = s->window + s->strstart; */ + + mov esi, [edx].ds_window + mov [esp+window], esi + mov ebp, [edx].ds_strstart + lea edi, [esi+ebp] + mov [esp+scan],edi + +;/* Determine how many bytes the scan ptr is off from being */ +;/* dword-aligned. */ + + mov eax, edi + neg eax + and eax, 3 + mov [esp+scanalign], eax + +;/* IPos limit = s->strstart > (IPos)MAX_DIST(s) ? */ +;/* s->strstart - (IPos)MAX_DIST(s) : NIL; */ + + mov eax, [edx].ds_w_size + sub eax, MIN_LOOKAHEAD + sub ebp, eax + jg SHORT LimitPositive + xor ebp, ebp +LimitPositive: + +;/* int best_len = s->prev_length; */ + + mov eax, [edx].ds_prev_length + mov [esp+bestlen], eax + +;/* Store the sum of s->window + best_len in %esi locally, and in %esi. */ + + add esi, eax + mov [esp+windowbestlen], esi + +;/* register ush scan_start = *(ushf*)scan; */ +;/* register ush scan_end = *(ushf*)(scan+best_len-1); */ +;/* Posf *prev = s->prev; */ + + movzx ebx, WORD PTR[edi] + mov [esp+scanstart], ebx + movzx ebx, WORD PTR[eax+edi-1] + mov [esp+scanend], ebx + mov edi, [edx].ds_prev + +;/* Jump into the main loop. */ + + mov edx, [esp+chainlenwmask] + jmp SHORT LoopEntry + +;/* do { +; * match = s->window + cur_match; +; * if (*(ushf*)(match+best_len-1) != scan_end || +; * *(ushf*)match != scan_start) continue; +; * [...] +; * } while ((cur_match = prev[cur_match & wmask]) > limit +; * && --chain_length != 0); +; * +; * Here is the inner loop of the function. The function will spend the +; * majority of its time in this loop, and majority of that time will +; * be spent in the first ten instructions. +; * +; * Within this loop: +; * %ebx = scanend +; * %ecx = curmatch +; * %edx = chainlenwmask - i.e., ((chainlen << 16) | wmask) +; * %esi = windowbestlen - i.e., (window + bestlen) +; * %edi = prev +; * %ebp = limit +; */ + + ALIGN 4 +LookupLoop: + and ecx, edx + movzx ecx, WORD PTR[edi+ecx*2] + cmp ecx, ebp + jbe LeaveNow + sub edx, 000010000H + js LeaveNow + +LoopEntry: + movzx eax, WORD PTR[esi+ecx-1] + cmp eax, ebx + jnz SHORT LookupLoop + + mov eax, [esp+window] + movzx eax, WORD PTR[eax+ecx] + cmp eax, [esp+scanstart] + jnz SHORT LookupLoop + +;/* Store the current value of chainlen. */ + + mov [esp+chainlenwmask], edx + +;/* Point %edi to the string under scrutiny, and %esi to the string we */ +;/* are hoping to match it up with. In actuality, %esi and %edi are */ +;/* both pointed (MAX_MATCH_8 - scanalign) bytes ahead, and %edx is */ +;/* initialized to -(MAX_MATCH_8 - scanalign). */ + + mov esi, [esp+window] + mov edi, [esp+scan] + add esi, ecx + mov eax, [esp+scanalign] + mov edx, -MAX_MATCH_8 + lea edi, [edi+eax+MAX_MATCH_8] + lea esi, [esi+eax+MAX_MATCH_8] + +;/* Test the strings for equality, 8 bytes at a time. At the end, +; * adjust %edx so that it is offset to the exact byte that mismatched. +; * +; * We already know at this point that the first three bytes of the +; * strings match each other, and they can be safely passed over before +; * starting the compare loop. So what this code does is skip over 0-3 +; * bytes, as much as necessary in order to dword-align the %edi +; * pointer. (%esi will still be misaligned three times out of four.) +; * +; * It should be confessed that this loop usually does not represent +; * much of the total running time. Replacing it with a more +; * straightforward "rep cmpsb" would not drastically degrade +; * performance. +; */ + +LoopCmps: + mov eax, DWORD PTR[esi+edx] + xor eax, DWORD PTR[edi+edx] + jnz SHORT LeaveLoopCmps + + mov eax, DWORD PTR[esi+edx+4] + xor eax, DWORD PTR[edi+edx+4] + jnz SHORT LeaveLoopCmps4 + + add edx, 8 + jnz SHORT LoopCmps + jmp LenMaximum + ALIGN 4 + +LeaveLoopCmps4: + add edx, 4 + +LeaveLoopCmps: + test eax, 00000FFFFH + jnz SHORT LenLower + + add edx, 2 + shr eax, 16 + +LenLower: + sub al, 1 + adc edx, 0 + +;/* Calculate the length of the match. If it is longer than MAX_MATCH, */ +;/* then automatically accept it as the best possible match and leave. */ + + lea eax, [edi+edx] + mov edi, [esp+scan] + sub eax, edi + cmp eax, MAX_MATCH + jge SHORT LenMaximum + +;/* If the length of the match is not longer than the best match we */ +;/* have so far, then forget it and return to the lookup loop. */ + + mov edx, [esp+deflatestate] + mov ebx, [esp+bestlen] + cmp eax, ebx + jg SHORT LongerMatch + mov esi, [esp+windowbestlen] + mov edi, [edx].ds_prev + mov ebx, [esp+scanend] + mov edx, [esp+chainlenwmask] + jmp LookupLoop + ALIGN 4 + +;/* s->match_start = cur_match; */ +;/* best_len = len; */ +;/* if (len >= nice_match) break; */ +;/* scan_end = *(ushf*)(scan+best_len-1); */ + +LongerMatch: + mov ebx, [esp+nicematch] + mov [esp+bestlen], eax + mov [edx].ds_match_start, ecx + cmp eax, ebx + jge SHORT LeaveNow + mov esi, [esp+window] + add esi, eax + mov [esp+windowbestlen], esi + movzx ebx, WORD PTR[edi+eax-1] + mov edi, [edx].ds_prev + mov [esp+scanend], ebx + mov edx, [esp+chainlenwmask] + jmp LookupLoop + ALIGN 4 + +;/* Accept the current string, with the maximum possible length. */ + +LenMaximum: + mov edx, [esp+deflatestate] + mov DWORD PTR[esp+bestlen], MAX_MATCH + mov [edx].ds_match_start, ecx + +;/* if ((uInt)best_len <= s->lookahead) return (uInt)best_len; */ +;/* return s->lookahead; */ + +LeaveNow: + mov edx, [esp+deflatestate] + mov ebx, [esp+bestlen] + mov eax, [edx].ds_lookahead + cmp ebx, eax + jg SHORT LookaheadRet + mov eax, ebx +LookaheadRet: + +; Restore the stack and return from whence we came. + + add esp, varsize + pop ebx + pop esi + pop edi + pop ebp + ret + +_longest_match ENDP + +_TEXT ENDS +END diff --git a/cpukit/zlib/contrib/masmx86/gvmat32.asm b/cpukit/zlib/contrib/masmx86/gvmat32.asm new file mode 100644 index 0000000000..e841a7fda2 --- /dev/null +++ b/cpukit/zlib/contrib/masmx86/gvmat32.asm @@ -0,0 +1,909 @@ +; +; gvmat32.asm -- Asm portion of the optimized longest_match for 32 bits x86 +; Copyright (C) 1995-1996 Jean-loup Gailly and Gilles Vollant. +; File written by Gilles Vollant, by modifiying the longest_match +; from Jean-loup Gailly in deflate.c +; It need wmask == 0x7fff +; (assembly code is faster with a fixed wmask) +; +; For Visual C++ 4.2 and ML 6.11c (version in directory \MASM611C of Win95 DDK) +; I compile with : "ml /coff /Zi /c gvmat32.asm" +; + +;uInt longest_match_7fff(s, cur_match) +; deflate_state *s; +; IPos cur_match; /* current match */ + + NbStack equ 76 + cur_match equ dword ptr[esp+NbStack-0] + str_s equ dword ptr[esp+NbStack-4] +; 5 dword on top (ret,ebp,esi,edi,ebx) + adrret equ dword ptr[esp+NbStack-8] + pushebp equ dword ptr[esp+NbStack-12] + pushedi equ dword ptr[esp+NbStack-16] + pushesi equ dword ptr[esp+NbStack-20] + pushebx equ dword ptr[esp+NbStack-24] + + chain_length equ dword ptr [esp+NbStack-28] + limit equ dword ptr [esp+NbStack-32] + best_len equ dword ptr [esp+NbStack-36] + window equ dword ptr [esp+NbStack-40] + prev equ dword ptr [esp+NbStack-44] + scan_start equ word ptr [esp+NbStack-48] + wmask equ dword ptr [esp+NbStack-52] + match_start_ptr equ dword ptr [esp+NbStack-56] + nice_match equ dword ptr [esp+NbStack-60] + scan equ dword ptr [esp+NbStack-64] + + windowlen equ dword ptr [esp+NbStack-68] + match_start equ dword ptr [esp+NbStack-72] + strend equ dword ptr [esp+NbStack-76] + NbStackAdd equ (NbStack-24) + + .386p + + name gvmatch + .MODEL FLAT + + + +; all the +addstr offsets are due to the addition of pending_buf_size in zlib 1.04 +; and adding gzhead and gzindex in zlib 1.2.2.1 +; in the deflate_state structure since the asm code was first written +; (if you compile with zlib 1.0.4 or older, set addstr to 0). +; (if you compiler with zlib between 1.04 and 1.2.1, set addstr to 4) +; Note : these value are good with a 8 bytes boundary pack structure + + addstr equ 4+8 + dep_chain_length equ 70h+addstr + dep_window equ 2ch+addstr + dep_strstart equ 60h+addstr + dep_prev_length equ 6ch+addstr + dep_nice_match equ 84h+addstr + dep_w_size equ 20h+addstr + dep_prev equ 34h+addstr + dep_w_mask equ 28h+addstr + dep_good_match equ 80h+addstr + dep_match_start equ 64h+addstr + dep_lookahead equ 68h+addstr + + +_TEXT segment + +IFDEF NOUNDERLINE + public longest_match_7fff + public longest_match_686 +; public match_init +ELSE + public _longest_match_7fff + public _longest_match_686 +; public _match_init +ENDIF + + MAX_MATCH equ 258 + MIN_MATCH equ 3 + MIN_LOOKAHEAD equ (MAX_MATCH+MIN_MATCH+1) + + + +IFDEF NOUNDERLINE +;match_init proc near +; ret +;match_init endp +ELSE +;_match_init proc near +; ret +;_match_init endp +ENDIF + + +IFDEF NOUNDERLINE +longest_match_7fff proc near +ELSE +_longest_match_7fff proc near +ENDIF + + mov edx,[esp+4] + + + + push ebp + push edi + push esi + push ebx + + sub esp,NbStackAdd + +; initialize or check the variables used in match.asm. + mov ebp,edx + +; chain_length = s->max_chain_length +; if (prev_length>=good_match) chain_length >>= 2 + mov edx,[ebp+dep_chain_length] + mov ebx,[ebp+dep_prev_length] + cmp [ebp+dep_good_match],ebx + ja noshr + shr edx,2 +noshr: +; we increment chain_length because in the asm, the --chain_lenght is in the beginning of the loop + inc edx + mov edi,[ebp+dep_nice_match] + mov chain_length,edx + mov eax,[ebp+dep_lookahead] + cmp eax,edi +; if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead; + jae nolookaheadnicematch + mov edi,eax +nolookaheadnicematch: +; best_len = s->prev_length + mov best_len,ebx + +; window = s->window + mov esi,[ebp+dep_window] + mov ecx,[ebp+dep_strstart] + mov window,esi + + mov nice_match,edi +; scan = window + strstart + add esi,ecx + mov scan,esi +; dx = *window + mov dx,word ptr [esi] +; bx = *(window+best_len-1) + mov bx,word ptr [esi+ebx-1] + add esi,MAX_MATCH-1 +; scan_start = *scan + mov scan_start,dx +; strend = scan + MAX_MATCH-1 + mov strend,esi +; bx = scan_end = *(window+best_len-1) + +; IPos limit = s->strstart > (IPos)MAX_DIST(s) ? +; s->strstart - (IPos)MAX_DIST(s) : NIL; + + mov esi,[ebp+dep_w_size] + sub esi,MIN_LOOKAHEAD +; here esi = MAX_DIST(s) + sub ecx,esi + ja nodist + xor ecx,ecx +nodist: + mov limit,ecx + +; prev = s->prev + mov edx,[ebp+dep_prev] + mov prev,edx + +; + mov edx,dword ptr [ebp+dep_match_start] + mov bp,scan_start + mov eax,cur_match + mov match_start,edx + + mov edx,window + mov edi,edx + add edi,best_len + mov esi,prev + dec edi +; windowlen = window + best_len -1 + mov windowlen,edi + + jmp beginloop2 + align 4 + +; here, in the loop +; eax = ax = cur_match +; ecx = limit +; bx = scan_end +; bp = scan_start +; edi = windowlen (window + best_len -1) +; esi = prev + + +;// here; chain_length <=16 +normalbeg0add16: + add chain_length,16 + jz exitloop +normalbeg0: + cmp word ptr[edi+eax],bx + je normalbeg2noroll +rcontlabnoroll: +; cur_match = prev[cur_match & wmask] + and eax,7fffh + mov ax,word ptr[esi+eax*2] +; if cur_match > limit, go to exitloop + cmp ecx,eax + jnb exitloop +; if --chain_length != 0, go to exitloop + dec chain_length + jnz normalbeg0 + jmp exitloop + +normalbeg2noroll: +; if (scan_start==*(cur_match+window)) goto normalbeg2 + cmp bp,word ptr[edx+eax] + jne rcontlabnoroll + jmp normalbeg2 + +contloop3: + mov edi,windowlen + +; cur_match = prev[cur_match & wmask] + and eax,7fffh + mov ax,word ptr[esi+eax*2] +; if cur_match > limit, go to exitloop + cmp ecx,eax +jnbexitloopshort1: + jnb exitloop +; if --chain_length != 0, go to exitloop + + +; begin the main loop +beginloop2: + sub chain_length,16+1 +; if chain_length <=16, don't use the unrolled loop + jna normalbeg0add16 + +do16: + cmp word ptr[edi+eax],bx + je normalbeg2dc0 + +maccn MACRO lab + and eax,7fffh + mov ax,word ptr[esi+eax*2] + cmp ecx,eax + jnb exitloop + cmp word ptr[edi+eax],bx + je lab + ENDM + +rcontloop0: + maccn normalbeg2dc1 + +rcontloop1: + maccn normalbeg2dc2 + +rcontloop2: + maccn normalbeg2dc3 + +rcontloop3: + maccn normalbeg2dc4 + +rcontloop4: + maccn normalbeg2dc5 + +rcontloop5: + maccn normalbeg2dc6 + +rcontloop6: + maccn normalbeg2dc7 + +rcontloop7: + maccn normalbeg2dc8 + +rcontloop8: + maccn normalbeg2dc9 + +rcontloop9: + maccn normalbeg2dc10 + +rcontloop10: + maccn short normalbeg2dc11 + +rcontloop11: + maccn short normalbeg2dc12 + +rcontloop12: + maccn short normalbeg2dc13 + +rcontloop13: + maccn short normalbeg2dc14 + +rcontloop14: + maccn short normalbeg2dc15 + +rcontloop15: + and eax,7fffh + mov ax,word ptr[esi+eax*2] + cmp ecx,eax + jnb exitloop + + sub chain_length,16 + ja do16 + jmp normalbeg0add16 + +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; + +normbeg MACRO rcontlab,valsub +; if we are here, we know that *(match+best_len-1) == scan_end + cmp bp,word ptr[edx+eax] +; if (match != scan_start) goto rcontlab + jne rcontlab +; calculate the good chain_length, and we'll compare scan and match string + add chain_length,16-valsub + jmp iseq + ENDM + + +normalbeg2dc11: + normbeg rcontloop11,11 + +normalbeg2dc12: + normbeg short rcontloop12,12 + +normalbeg2dc13: + normbeg short rcontloop13,13 + +normalbeg2dc14: + normbeg short rcontloop14,14 + +normalbeg2dc15: + normbeg short rcontloop15,15 + +normalbeg2dc10: + normbeg rcontloop10,10 + +normalbeg2dc9: + normbeg rcontloop9,9 + +normalbeg2dc8: + normbeg rcontloop8,8 + +normalbeg2dc7: + normbeg rcontloop7,7 + +normalbeg2dc6: + normbeg rcontloop6,6 + +normalbeg2dc5: + normbeg rcontloop5,5 + +normalbeg2dc4: + normbeg rcontloop4,4 + +normalbeg2dc3: + normbeg rcontloop3,3 + +normalbeg2dc2: + normbeg rcontloop2,2 + +normalbeg2dc1: + normbeg rcontloop1,1 + +normalbeg2dc0: + normbeg rcontloop0,0 + + +; we go in normalbeg2 because *(ushf*)(match+best_len-1) == scan_end + +normalbeg2: + mov edi,window + + cmp bp,word ptr[edi+eax] + jne contloop3 ; if *(ushf*)match != scan_start, continue + +iseq: +; if we are here, we know that *(match+best_len-1) == scan_end +; and (match == scan_start) + + mov edi,edx + mov esi,scan ; esi = scan + add edi,eax ; edi = window + cur_match = match + + mov edx,[esi+3] ; compare manually dword at match+3 + xor edx,[edi+3] ; and scan +3 + + jz begincompare ; if equal, go to long compare + +; we will determine the unmatch byte and calculate len (in esi) + or dl,dl + je eq1rr + mov esi,3 + jmp trfinval +eq1rr: + or dx,dx + je eq1 + + mov esi,4 + jmp trfinval +eq1: + and edx,0ffffffh + jz eq11 + mov esi,5 + jmp trfinval +eq11: + mov esi,6 + jmp trfinval + +begincompare: + ; here we now scan and match begin same + add edi,6 + add esi,6 + mov ecx,(MAX_MATCH-(2+4))/4 ; scan for at most MAX_MATCH bytes + repe cmpsd ; loop until mismatch + + je trfin ; go to trfin if not unmatch +; we determine the unmatch byte + sub esi,4 + mov edx,[edi-4] + xor edx,[esi] + + or dl,dl + jnz trfin + inc esi + + or dx,dx + jnz trfin + inc esi + + and edx,0ffffffh + jnz trfin + inc esi + +trfin: + sub esi,scan ; esi = len +trfinval: +; here we have finised compare, and esi contain len of equal string + cmp esi,best_len ; if len > best_len, go newbestlen + ja short newbestlen +; now we restore edx, ecx and esi, for the big loop + mov esi,prev + mov ecx,limit + mov edx,window + jmp contloop3 + +newbestlen: + mov best_len,esi ; len become best_len + + mov match_start,eax ; save new position as match_start + cmp esi,nice_match ; if best_len >= nice_match, exit + jae exitloop + mov ecx,scan + mov edx,window ; restore edx=window + add ecx,esi + add esi,edx + + dec esi + mov windowlen,esi ; windowlen = window + best_len-1 + mov bx,[ecx-1] ; bx = *(scan+best_len-1) = scan_end + +; now we restore ecx and esi, for the big loop : + mov esi,prev + mov ecx,limit + jmp contloop3 + +exitloop: +; exit : s->match_start=match_start + mov ebx,match_start + mov ebp,str_s + mov ecx,best_len + mov dword ptr [ebp+dep_match_start],ebx + mov eax,dword ptr [ebp+dep_lookahead] + cmp ecx,eax + ja minexlo + mov eax,ecx +minexlo: +; return min(best_len,s->lookahead) + +; restore stack and register ebx,esi,edi,ebp + add esp,NbStackAdd + + pop ebx + pop esi + pop edi + pop ebp + ret +InfoAuthor: +; please don't remove this string ! +; Your are free use gvmat32 in any fre or commercial apps if you don't remove the string in the binary! + db 0dh,0ah,"GVMat32 optimised assembly code written 1996-98 by Gilles Vollant",0dh,0ah + + + +IFDEF NOUNDERLINE +longest_match_7fff endp +ELSE +_longest_match_7fff endp +ENDIF + + +IFDEF NOUNDERLINE +cpudetect32 proc near +ELSE +_cpudetect32 proc near +ENDIF + + push ebx + + pushfd ; push original EFLAGS + pop eax ; get original EFLAGS + mov ecx, eax ; save original EFLAGS + xor eax, 40000h ; flip AC bit in EFLAGS + push eax ; save new EFLAGS value on stack + popfd ; replace current EFLAGS value + pushfd ; get new EFLAGS + pop eax ; store new EFLAGS in EAX + xor eax, ecx ; can’t toggle AC bit, processor=80386 + jz end_cpu_is_386 ; jump if 80386 processor + push ecx + popfd ; restore AC bit in EFLAGS first + + pushfd + pushfd + pop ecx + + mov eax, ecx ; get original EFLAGS + xor eax, 200000h ; flip ID bit in EFLAGS + push eax ; save new EFLAGS value on stack + popfd ; replace current EFLAGS value + pushfd ; get new EFLAGS + pop eax ; store new EFLAGS in EAX + popfd ; restore original EFLAGS + xor eax, ecx ; can’t toggle ID bit, + je is_old_486 ; processor=old + + mov eax,1 + db 0fh,0a2h ;CPUID + +exitcpudetect: + pop ebx + ret + +end_cpu_is_386: + mov eax,0300h + jmp exitcpudetect + +is_old_486: + mov eax,0400h + jmp exitcpudetect + +IFDEF NOUNDERLINE +cpudetect32 endp +ELSE +_cpudetect32 endp +ENDIF + + + + +MAX_MATCH equ 258 +MIN_MATCH equ 3 +MIN_LOOKAHEAD equ (MAX_MATCH + MIN_MATCH + 1) +MAX_MATCH_8_ equ ((MAX_MATCH + 7) AND 0FFF0h) + + +;;; stack frame offsets + +chainlenwmask equ esp + 0 ; high word: current chain len + ; low word: s->wmask +window equ esp + 4 ; local copy of s->window +windowbestlen equ esp + 8 ; s->window + bestlen +scanstart equ esp + 16 ; first two bytes of string +scanend equ esp + 12 ; last two bytes of string +scanalign equ esp + 20 ; dword-misalignment of string +nicematch equ esp + 24 ; a good enough match size +bestlen equ esp + 28 ; size of best match so far +scan equ esp + 32 ; ptr to string wanting match + +LocalVarsSize equ 36 +; saved ebx byte esp + 36 +; saved edi byte esp + 40 +; saved esi byte esp + 44 +; saved ebp byte esp + 48 +; return address byte esp + 52 +deflatestate equ esp + 56 ; the function arguments +curmatch equ esp + 60 + +;;; Offsets for fields in the deflate_state structure. These numbers +;;; are calculated from the definition of deflate_state, with the +;;; assumption that the compiler will dword-align the fields. (Thus, +;;; changing the definition of deflate_state could easily cause this +;;; program to crash horribly, without so much as a warning at +;;; compile time. Sigh.) + +dsWSize equ 36+addstr-4 +dsWMask equ 44+addstr-4 +dsWindow equ 48+addstr-4 +dsPrev equ 56+addstr-4 +dsMatchLen equ 88+addstr-4 +dsPrevMatch equ 92+addstr-4 +dsStrStart equ 100+addstr-4 +dsMatchStart equ 104+addstr-4 +dsLookahead equ 108+addstr-4 +dsPrevLen equ 112+addstr-4 +dsMaxChainLen equ 116+addstr-4 +dsGoodMatch equ 132+addstr-4 +dsNiceMatch equ 136+addstr-4 + + +;;; match.asm -- Pentium-Pro-optimized version of longest_match() +;;; Written for zlib 1.1.2 +;;; Copyright (C) 1998 Brian Raiter +;;; You can look at http://www.muppetlabs.com/~breadbox/software/assembly.html +;;; +;;; This is free software; you can redistribute it and/or modify it +;;; under the terms of the GNU General Public License. + +;GLOBAL _longest_match, _match_init + + +;SECTION .text + +;;; uInt longest_match(deflate_state *deflatestate, IPos curmatch) + +;_longest_match: +IFDEF NOUNDERLINE +longest_match_686 proc near +ELSE +_longest_match_686 proc near +ENDIF + + +;;; Save registers that the compiler may be using, and adjust esp to +;;; make room for our stack frame. + + push ebp + push edi + push esi + push ebx + sub esp, LocalVarsSize + +;;; Retrieve the function arguments. ecx will hold cur_match +;;; throughout the entire function. edx will hold the pointer to the +;;; deflate_state structure during the function's setup (before +;;; entering the main loop. + + mov edx, [deflatestate] + mov ecx, [curmatch] + +;;; uInt wmask = s->w_mask; +;;; unsigned chain_length = s->max_chain_length; +;;; if (s->prev_length >= s->good_match) { +;;; chain_length >>= 2; +;;; } + + mov eax, [edx + dsPrevLen] + mov ebx, [edx + dsGoodMatch] + cmp eax, ebx + mov eax, [edx + dsWMask] + mov ebx, [edx + dsMaxChainLen] + jl LastMatchGood + shr ebx, 2 +LastMatchGood: + +;;; chainlen is decremented once beforehand so that the function can +;;; use the sign flag instead of the zero flag for the exit test. +;;; It is then shifted into the high word, to make room for the wmask +;;; value, which it will always accompany. + + dec ebx + shl ebx, 16 + or ebx, eax + mov [chainlenwmask], ebx + +;;; if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead; + + mov eax, [edx + dsNiceMatch] + mov ebx, [edx + dsLookahead] + cmp ebx, eax + jl LookaheadLess + mov ebx, eax +LookaheadLess: mov [nicematch], ebx + +;;; register Bytef *scan = s->window + s->strstart; + + mov esi, [edx + dsWindow] + mov [window], esi + mov ebp, [edx + dsStrStart] + lea edi, [esi + ebp] + mov [scan], edi + +;;; Determine how many bytes the scan ptr is off from being +;;; dword-aligned. + + mov eax, edi + neg eax + and eax, 3 + mov [scanalign], eax + +;;; IPos limit = s->strstart > (IPos)MAX_DIST(s) ? +;;; s->strstart - (IPos)MAX_DIST(s) : NIL; + + mov eax, [edx + dsWSize] + sub eax, MIN_LOOKAHEAD + sub ebp, eax + jg LimitPositive + xor ebp, ebp +LimitPositive: + +;;; int best_len = s->prev_length; + + mov eax, [edx + dsPrevLen] + mov [bestlen], eax + +;;; Store the sum of s->window + best_len in esi locally, and in esi. + + add esi, eax + mov [windowbestlen], esi + +;;; register ush scan_start = *(ushf*)scan; +;;; register ush scan_end = *(ushf*)(scan+best_len-1); +;;; Posf *prev = s->prev; + + movzx ebx, word ptr [edi] + mov [scanstart], ebx + movzx ebx, word ptr [edi + eax - 1] + mov [scanend], ebx + mov edi, [edx + dsPrev] + +;;; Jump into the main loop. + + mov edx, [chainlenwmask] + jmp short LoopEntry + +align 4 + +;;; do { +;;; match = s->window + cur_match; +;;; if (*(ushf*)(match+best_len-1) != scan_end || +;;; *(ushf*)match != scan_start) continue; +;;; [...] +;;; } while ((cur_match = prev[cur_match & wmask]) > limit +;;; && --chain_length != 0); +;;; +;;; Here is the inner loop of the function. The function will spend the +;;; majority of its time in this loop, and majority of that time will +;;; be spent in the first ten instructions. +;;; +;;; Within this loop: +;;; ebx = scanend +;;; ecx = curmatch +;;; edx = chainlenwmask - i.e., ((chainlen << 16) | wmask) +;;; esi = windowbestlen - i.e., (window + bestlen) +;;; edi = prev +;;; ebp = limit + +LookupLoop: + and ecx, edx + movzx ecx, word ptr [edi + ecx*2] + cmp ecx, ebp + jbe LeaveNow + sub edx, 00010000h + js LeaveNow +LoopEntry: movzx eax, word ptr [esi + ecx - 1] + cmp eax, ebx + jnz LookupLoop + mov eax, [window] + movzx eax, word ptr [eax + ecx] + cmp eax, [scanstart] + jnz LookupLoop + +;;; Store the current value of chainlen. + + mov [chainlenwmask], edx + +;;; Point edi to the string under scrutiny, and esi to the string we +;;; are hoping to match it up with. In actuality, esi and edi are +;;; both pointed (MAX_MATCH_8 - scanalign) bytes ahead, and edx is +;;; initialized to -(MAX_MATCH_8 - scanalign). + + mov esi, [window] + mov edi, [scan] + add esi, ecx + mov eax, [scanalign] + mov edx, 0fffffef8h; -(MAX_MATCH_8) + lea edi, [edi + eax + 0108h] ;MAX_MATCH_8] + lea esi, [esi + eax + 0108h] ;MAX_MATCH_8] + +;;; Test the strings for equality, 8 bytes at a time. At the end, +;;; adjust edx so that it is offset to the exact byte that mismatched. +;;; +;;; We already know at this point that the first three bytes of the +;;; strings match each other, and they can be safely passed over before +;;; starting the compare loop. So what this code does is skip over 0-3 +;;; bytes, as much as necessary in order to dword-align the edi +;;; pointer. (esi will still be misaligned three times out of four.) +;;; +;;; It should be confessed that this loop usually does not represent +;;; much of the total running time. Replacing it with a more +;;; straightforward "rep cmpsb" would not drastically degrade +;;; performance. + +LoopCmps: + mov eax, [esi + edx] + xor eax, [edi + edx] + jnz LeaveLoopCmps + mov eax, [esi + edx + 4] + xor eax, [edi + edx + 4] + jnz LeaveLoopCmps4 + add edx, 8 + jnz LoopCmps + jmp short LenMaximum +LeaveLoopCmps4: add edx, 4 +LeaveLoopCmps: test eax, 0000FFFFh + jnz LenLower + add edx, 2 + shr eax, 16 +LenLower: sub al, 1 + adc edx, 0 + +;;; Calculate the length of the match. If it is longer than MAX_MATCH, +;;; then automatically accept it as the best possible match and leave. + + lea eax, [edi + edx] + mov edi, [scan] + sub eax, edi + cmp eax, MAX_MATCH + jge LenMaximum + +;;; If the length of the match is not longer than the best match we +;;; have so far, then forget it and return to the lookup loop. + + mov edx, [deflatestate] + mov ebx, [bestlen] + cmp eax, ebx + jg LongerMatch + mov esi, [windowbestlen] + mov edi, [edx + dsPrev] + mov ebx, [scanend] + mov edx, [chainlenwmask] + jmp LookupLoop + +;;; s->match_start = cur_match; +;;; best_len = len; +;;; if (len >= nice_match) break; +;;; scan_end = *(ushf*)(scan+best_len-1); + +LongerMatch: mov ebx, [nicematch] + mov [bestlen], eax + mov [edx + dsMatchStart], ecx + cmp eax, ebx + jge LeaveNow + mov esi, [window] + add esi, eax + mov [windowbestlen], esi + movzx ebx, word ptr [edi + eax - 1] + mov edi, [edx + dsPrev] + mov [scanend], ebx + mov edx, [chainlenwmask] + jmp LookupLoop + +;;; Accept the current string, with the maximum possible length. + +LenMaximum: mov edx, [deflatestate] + mov dword ptr [bestlen], MAX_MATCH + mov [edx + dsMatchStart], ecx + +;;; if ((uInt)best_len <= s->lookahead) return (uInt)best_len; +;;; return s->lookahead; + +LeaveNow: + mov edx, [deflatestate] + mov ebx, [bestlen] + mov eax, [edx + dsLookahead] + cmp ebx, eax + jg LookaheadRet + mov eax, ebx +LookaheadRet: + +;;; Restore the stack and return from whence we came. + + add esp, LocalVarsSize + pop ebx + pop esi + pop edi + pop ebp + + ret +; please don't remove this string ! +; Your can freely use gvmat32 in any free or commercial app if you don't remove the string in the binary! + db 0dh,0ah,"asm686 with masm, optimised assembly code from Brian Raiter, written 1998",0dh,0ah + +IFDEF NOUNDERLINE +longest_match_686 endp +ELSE +_longest_match_686 endp +ENDIF + +_TEXT ends +end diff --git a/cpukit/zlib/contrib/masmx86/gvmat32c.c b/cpukit/zlib/contrib/masmx86/gvmat32c.c new file mode 100644 index 0000000000..9ed25f3432 --- /dev/null +++ b/cpukit/zlib/contrib/masmx86/gvmat32c.c @@ -0,0 +1,206 @@ +/* gvmat32.c -- C portion of the optimized longest_match for 32 bits x86 + * Copyright (C) 1995-1996 Jean-loup Gailly and Gilles Vollant. + * File written by Gilles Vollant, by modifiying the longest_match + * from Jean-loup Gailly in deflate.c + * it prepare all parameters and call the assembly longest_match_gvasm + * longest_match execute standard C code is wmask != 0x7fff + * (assembly code is faster with a fixed wmask) + * + */ + +#include "deflate.h" + +#ifdef ASMV +#define NIL 0 + +#define UNALIGNED_OK + + +/* if your C compiler don't add underline before function name, + define ADD_UNDERLINE_ASMFUNC */ +#ifdef ADD_UNDERLINE_ASMFUNC +#define longest_match_7fff _longest_match_7fff +#define longest_match_686 _longest_match_686 +#define cpudetect32 _cpudetect32 +#endif + + + +void match_init() +{ +} + +unsigned long cpudetect32(); + +uInt longest_match_c( + deflate_state *s, + IPos cur_match); /* current match */ + + +uInt longest_match_7fff( + deflate_state *s, + IPos cur_match); /* current match */ + +uInt longest_match_686( + deflate_state *s, + IPos cur_match); /* current match */ + +uInt longest_match( + deflate_state *s, + IPos cur_match) /* current match */ +{ + static uInt iIsPPro=2; + + if ((s->w_mask == 0x7fff) && (iIsPPro==0)) + return longest_match_7fff(s,cur_match); + + if (iIsPPro==1) + return longest_match_686(s,cur_match); + + if (iIsPPro==2) + iIsPPro = (((cpudetect32()/0x100)&0xf)>=6) ? 1 : 0; + + return longest_match_c(s,cur_match); +} + + + +uInt longest_match_c(s, cur_match) + deflate_state *s; + IPos cur_match; /* current match */ +{ + unsigned chain_length = s->max_chain_length;/* max hash chain length */ + register Bytef *scan = s->window + s->strstart; /* current string */ + register Bytef *match; /* matched string */ + register int len; /* length of current match */ + int best_len = s->prev_length; /* best match length so far */ + int nice_match = s->nice_match; /* stop if match long enough */ + IPos limit = s->strstart > (IPos)MAX_DIST(s) ? + s->strstart - (IPos)MAX_DIST(s) : NIL; + /* Stop when cur_match becomes <= limit. To simplify the code, + * we prevent matches with the string of window index 0. + */ + Posf *prev = s->prev; + uInt wmask = s->w_mask; + +#ifdef UNALIGNED_OK + /* Compare two bytes at a time. Note: this is not always beneficial. + * Try with and without -DUNALIGNED_OK to check. + */ + register Bytef *strend = s->window + s->strstart + MAX_MATCH - 1; + register ush scan_start = *(ushf*)scan; + register ush scan_end = *(ushf*)(scan+best_len-1); +#else + register Bytef *strend = s->window + s->strstart + MAX_MATCH; + register Byte scan_end1 = scan[best_len-1]; + register Byte scan_end = scan[best_len]; +#endif + + /* The code is optimized for HASH_BITS >= 8 and MAX_MATCH-2 multiple of 16. + * It is easy to get rid of this optimization if necessary. + */ + Assert(s->hash_bits >= 8 && MAX_MATCH == 258, "Code too clever"); + + /* Do not waste too much time if we already have a good match: */ + if (s->prev_length >= s->good_match) { + chain_length >>= 2; + } + /* Do not look for matches beyond the end of the input. This is necessary + * to make deflate deterministic. + */ + if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead; + + Assert((ulg)s->strstart <= s->window_size-MIN_LOOKAHEAD, "need lookahead"); + + do { + Assert(cur_match < s->strstart, "no future"); + match = s->window + cur_match; + + /* Skip to next match if the match length cannot increase + * or if the match length is less than 2: + */ +#if (defined(UNALIGNED_OK) && MAX_MATCH == 258) + /* This code assumes sizeof(unsigned short) == 2. Do not use + * UNALIGNED_OK if your compiler uses a different size. + */ + if (*(ushf*)(match+best_len-1) != scan_end || + *(ushf*)match != scan_start) continue; + + /* It is not necessary to compare scan[2] and match[2] since they are + * always equal when the other bytes match, given that the hash keys + * are equal and that HASH_BITS >= 8. Compare 2 bytes at a time at + * strstart+3, +5, ... up to strstart+257. We check for insufficient + * lookahead only every 4th comparison; the 128th check will be made + * at strstart+257. If MAX_MATCH-2 is not a multiple of 8, it is + * necessary to put more guard bytes at the end of the window, or + * to check more often for insufficient lookahead. + */ + Assert(scan[2] == match[2], "scan[2]?"); + scan++, match++; + do { + } while (*(ushf*)(scan+=2) == *(ushf*)(match+=2) && + *(ushf*)(scan+=2) == *(ushf*)(match+=2) && + *(ushf*)(scan+=2) == *(ushf*)(match+=2) && + *(ushf*)(scan+=2) == *(ushf*)(match+=2) && + scan < strend); + /* The funny "do {}" generates better code on most compilers */ + + /* Here, scan <= window+strstart+257 */ + Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan"); + if (*scan == *match) scan++; + + len = (MAX_MATCH - 1) - (int)(strend-scan); + scan = strend - (MAX_MATCH-1); + +#else /* UNALIGNED_OK */ + + if (match[best_len] != scan_end || + match[best_len-1] != scan_end1 || + *match != *scan || + *++match != scan[1]) continue; + + /* The check at best_len-1 can be removed because it will be made + * again later. (This heuristic is not always a win.) + * It is not necessary to compare scan[2] and match[2] since they + * are always equal when the other bytes match, given that + * the hash keys are equal and that HASH_BITS >= 8. + */ + scan += 2, match++; + Assert(*scan == *match, "match[2]?"); + + /* We check for insufficient lookahead only every 8th comparison; + * the 256th check will be made at strstart+258. + */ + do { + } while (*++scan == *++match && *++scan == *++match && + *++scan == *++match && *++scan == *++match && + *++scan == *++match && *++scan == *++match && + *++scan == *++match && *++scan == *++match && + scan < strend); + + Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan"); + + len = MAX_MATCH - (int)(strend - scan); + scan = strend - MAX_MATCH; + +#endif /* UNALIGNED_OK */ + + if (len > best_len) { + s->match_start = cur_match; + best_len = len; + if (len >= nice_match) break; +#ifdef UNALIGNED_OK + scan_end = *(ushf*)(scan+best_len-1); +#else + scan_end1 = scan[best_len-1]; + scan_end = scan[best_len]; +#endif + } + } while ((cur_match = prev[cur_match & wmask]) > limit + && --chain_length != 0); + + if ((uInt)best_len <= s->lookahead) return (uInt)best_len; + return s->lookahead; +} + +#endif /* ASMV */ diff --git a/cpukit/zlib/contrib/masmx86/inffas32.asm b/cpukit/zlib/contrib/masmx86/inffas32.asm new file mode 100644 index 0000000000..531bcefffc --- /dev/null +++ b/cpukit/zlib/contrib/masmx86/inffas32.asm @@ -0,0 +1,1036 @@ +; 75 "inffast.S" +;FILE "inffast.S" + +;;;GLOBAL _inflate_fast + +;;;SECTION .text + + + + .586p + .mmx + + name inflate_fast_x86 + .MODEL FLAT + +_DATA segment +inflate_fast_use_mmx: + dd 1 + + +_TEXT segment +PUBLIC _inflate_fast + +ALIGN 4 +_inflate_fast: + jmp inflate_fast_entry + + + +ALIGN 4 + db 'Fast decoding Code from Chris Anderson' + db 0 + +ALIGN 4 +invalid_literal_length_code_msg: + db 'invalid literal/length code' + db 0 + +ALIGN 4 +invalid_distance_code_msg: + db 'invalid distance code' + db 0 + +ALIGN 4 +invalid_distance_too_far_msg: + db 'invalid distance too far back' + db 0 + + +ALIGN 4 +inflate_fast_mask: +dd 0 +dd 1 +dd 3 +dd 7 +dd 15 +dd 31 +dd 63 +dd 127 +dd 255 +dd 511 +dd 1023 +dd 2047 +dd 4095 +dd 8191 +dd 16383 +dd 32767 +dd 65535 +dd 131071 +dd 262143 +dd 524287 +dd 1048575 +dd 2097151 +dd 4194303 +dd 8388607 +dd 16777215 +dd 33554431 +dd 67108863 +dd 134217727 +dd 268435455 +dd 536870911 +dd 1073741823 +dd 2147483647 +dd 4294967295 + + +; head was added in zlib 1.2.2.1, so we add addstr +; set addstr to 0 with zlib 1.2.1 of below +addstr equ 4 + +mode_state equ 0 ;/* state->mode */ +wsize_state equ 32+addstr ;/* state->wsize */ +write_state equ (36+4+addstr) ;/* state->write */ +window_state equ (40+4+addstr) ;/* state->window */ +hold_state equ (44+4+addstr) ;/* state->hold */ +bits_state equ (48+4+addstr) ;/* state->bits */ +lencode_state equ (64+4+addstr) ;/* state->lencode */ +distcode_state equ (68+4+addstr) ;/* state->distcode */ +lenbits_state equ (72+4+addstr) ;/* state->lenbits */ +distbits_state equ (76+4+addstr) ;/* state->distbits */ + + +;;SECTION .text +; 205 "inffast.S" +;GLOBAL inflate_fast_use_mmx + +;SECTION .data + + +; GLOBAL inflate_fast_use_mmx:object +;.size inflate_fast_use_mmx, 4 +; 226 "inffast.S" +;SECTION .text + +ALIGN 4 +inflate_fast_entry: + push edi + push esi + push ebp + push ebx + pushfd + sub esp,64 + cld + + + + + mov esi, [esp+88] + mov edi, [esi+28] + + + + + + + + mov edx, [esi+4] + mov eax, [esi+0] + + add edx,eax + sub edx,11 + + mov [esp+44],eax + mov [esp+20],edx + + mov ebp, [esp+92] + mov ecx, [esi+16] + mov ebx, [esi+12] + + sub ebp,ecx + neg ebp + add ebp,ebx + + sub ecx,257 + add ecx,ebx + + mov [esp+60],ebx + mov [esp+40],ebp + mov [esp+16],ecx +; 285 "inffast.S" + mov eax, [edi+lencode_state] + mov ecx, [edi+distcode_state] + + mov [esp+8],eax + mov [esp+12],ecx + + mov eax,1 + mov ecx, [edi+lenbits_state] + shl eax,cl + dec eax + mov [esp+0],eax + + mov eax,1 + mov ecx, [edi+distbits_state] + shl eax,cl + dec eax + mov [esp+4],eax + + mov eax, [edi+wsize_state] + mov ecx, [edi+write_state] + mov edx, [edi+window_state] + + mov [esp+52],eax + mov [esp+48],ecx + mov [esp+56],edx + + mov ebp, [edi+hold_state] + mov ebx, [edi+bits_state] +; 321 "inffast.S" + mov esi, [esp+44] + mov ecx, [esp+20] + cmp ecx,esi + ja L_align_long + + add ecx,11 + sub ecx,esi + mov eax,12 + sub eax,ecx + lea edi, [esp+28] + rep movsb + mov ecx,eax + xor eax,eax + rep stosb + lea esi, [esp+28] + mov [esp+20],esi + jmp L_is_aligned + + +L_align_long: + test esi,3 + jz L_is_aligned + xor eax,eax + mov al, [esi] + inc esi + mov ecx,ebx + add ebx,8 + shl eax,cl + or ebp,eax + jmp L_align_long + +L_is_aligned: + mov edi, [esp+60] +; 366 "inffast.S" +L_check_mmx: + cmp dword ptr [inflate_fast_use_mmx],2 + je L_init_mmx + ja L_do_loop + + push eax + push ebx + push ecx + push edx + pushfd + mov eax, [esp] + xor dword ptr [esp],0200000h + + + + + popfd + pushfd + pop edx + xor edx,eax + jz L_dont_use_mmx + xor eax,eax + cpuid + cmp ebx,0756e6547h + jne L_dont_use_mmx + cmp ecx,06c65746eh + jne L_dont_use_mmx + cmp edx,049656e69h + jne L_dont_use_mmx + mov eax,1 + cpuid + shr eax,8 + and eax,15 + cmp eax,6 + jne L_dont_use_mmx + test edx,0800000h + jnz L_use_mmx + jmp L_dont_use_mmx +L_use_mmx: + mov dword ptr [inflate_fast_use_mmx],2 + jmp L_check_mmx_pop +L_dont_use_mmx: + mov dword ptr [inflate_fast_use_mmx],3 +L_check_mmx_pop: + pop edx + pop ecx + pop ebx + pop eax + jmp L_check_mmx +; 426 "inffast.S" +ALIGN 4 +L_do_loop: +; 437 "inffast.S" + cmp bl,15 + ja L_get_length_code + + xor eax,eax + lodsw + mov cl,bl + add bl,16 + shl eax,cl + or ebp,eax + +L_get_length_code: + mov edx, [esp+0] + mov ecx, [esp+8] + and edx,ebp + mov eax, [ecx+edx*4] + +L_dolen: + + + + + + + mov cl,ah + sub bl,ah + shr ebp,cl + + + + + + + test al,al + jnz L_test_for_length_base + + shr eax,16 + stosb + +L_while_test: + + + cmp [esp+16],edi + jbe L_break_loop + + cmp [esp+20],esi + ja L_do_loop + jmp L_break_loop + +L_test_for_length_base: +; 502 "inffast.S" + mov edx,eax + shr edx,16 + mov cl,al + + test al,16 + jz L_test_for_second_level_length + and cl,15 + jz L_save_len + cmp bl,cl + jae L_add_bits_to_len + + mov ch,cl + xor eax,eax + lodsw + mov cl,bl + add bl,16 + shl eax,cl + or ebp,eax + mov cl,ch + +L_add_bits_to_len: + mov eax,1 + shl eax,cl + dec eax + sub bl,cl + and eax,ebp + shr ebp,cl + add edx,eax + +L_save_len: + mov [esp+24],edx + + +L_decode_distance: +; 549 "inffast.S" + cmp bl,15 + ja L_get_distance_code + + xor eax,eax + lodsw + mov cl,bl + add bl,16 + shl eax,cl + or ebp,eax + +L_get_distance_code: + mov edx, [esp+4] + mov ecx, [esp+12] + and edx,ebp + mov eax, [ecx+edx*4] + + +L_dodist: + mov edx,eax + shr edx,16 + mov cl,ah + sub bl,ah + shr ebp,cl +; 584 "inffast.S" + mov cl,al + + test al,16 + jz L_test_for_second_level_dist + and cl,15 + jz L_check_dist_one + cmp bl,cl + jae L_add_bits_to_dist + + mov ch,cl + xor eax,eax + lodsw + mov cl,bl + add bl,16 + shl eax,cl + or ebp,eax + mov cl,ch + +L_add_bits_to_dist: + mov eax,1 + shl eax,cl + dec eax + sub bl,cl + and eax,ebp + shr ebp,cl + add edx,eax + jmp L_check_window + +L_check_window: +; 625 "inffast.S" + mov [esp+44],esi + mov eax,edi + sub eax, [esp+40] + + cmp eax,edx + jb L_clip_window + + mov ecx, [esp+24] + mov esi,edi + sub esi,edx + + sub ecx,3 + mov al, [esi] + mov [edi],al + mov al, [esi+1] + mov dl, [esi+2] + add esi,3 + mov [edi+1],al + mov [edi+2],dl + add edi,3 + rep movsb + + mov esi, [esp+44] + jmp L_while_test + +ALIGN 4 +L_check_dist_one: + cmp edx,1 + jne L_check_window + cmp [esp+40],edi + je L_check_window + + dec edi + mov ecx, [esp+24] + mov al, [edi] + sub ecx,3 + + mov [edi+1],al + mov [edi+2],al + mov [edi+3],al + add edi,4 + rep stosb + + jmp L_while_test + +ALIGN 4 +L_test_for_second_level_length: + + + + + test al,64 + jnz L_test_for_end_of_block + + mov eax,1 + shl eax,cl + dec eax + and eax,ebp + add eax,edx + mov edx, [esp+8] + mov eax, [edx+eax*4] + jmp L_dolen + +ALIGN 4 +L_test_for_second_level_dist: + + + + + test al,64 + jnz L_invalid_distance_code + + mov eax,1 + shl eax,cl + dec eax + and eax,ebp + add eax,edx + mov edx, [esp+12] + mov eax, [edx+eax*4] + jmp L_dodist + +ALIGN 4 +L_clip_window: +; 721 "inffast.S" + mov ecx,eax + mov eax, [esp+52] + neg ecx + mov esi, [esp+56] + + cmp eax,edx + jb L_invalid_distance_too_far + + add ecx,edx + cmp dword ptr [esp+48],0 + jne L_wrap_around_window + + sub eax,ecx + add esi,eax +; 749 "inffast.S" + mov eax, [esp+24] + cmp eax,ecx + jbe L_do_copy1 + + sub eax,ecx + rep movsb + mov esi,edi + sub esi,edx + jmp L_do_copy1 + + cmp eax,ecx + jbe L_do_copy1 + + sub eax,ecx + rep movsb + mov esi,edi + sub esi,edx + jmp L_do_copy1 + +L_wrap_around_window: +; 793 "inffast.S" + mov eax, [esp+48] + cmp ecx,eax + jbe L_contiguous_in_window + + add esi, [esp+52] + add esi,eax + sub esi,ecx + sub ecx,eax + + + mov eax, [esp+24] + cmp eax,ecx + jbe L_do_copy1 + + sub eax,ecx + rep movsb + mov esi, [esp+56] + mov ecx, [esp+48] + cmp eax,ecx + jbe L_do_copy1 + + sub eax,ecx + rep movsb + mov esi,edi + sub esi,edx + jmp L_do_copy1 + +L_contiguous_in_window: +; 836 "inffast.S" + add esi,eax + sub esi,ecx + + + mov eax, [esp+24] + cmp eax,ecx + jbe L_do_copy1 + + sub eax,ecx + rep movsb + mov esi,edi + sub esi,edx + +L_do_copy1: +; 862 "inffast.S" + mov ecx,eax + rep movsb + + mov esi, [esp+44] + jmp L_while_test +; 878 "inffast.S" +ALIGN 4 +L_init_mmx: + emms + + + + + + movd mm0,ebp + mov ebp,ebx +; 896 "inffast.S" + movd mm4,[esp+0] + movq mm3,mm4 + movd mm5,[esp+4] + movq mm2,mm5 + pxor mm1,mm1 + mov ebx, [esp+8] + jmp L_do_loop_mmx + +ALIGN 4 +L_do_loop_mmx: + psrlq mm0,mm1 + + cmp ebp,32 + ja L_get_length_code_mmx + + movd mm6,ebp + movd mm7,[esi] + add esi,4 + psllq mm7,mm6 + add ebp,32 + por mm0,mm7 + +L_get_length_code_mmx: + pand mm4,mm0 + movd eax,mm4 + movq mm4,mm3 + mov eax, [ebx+eax*4] + +L_dolen_mmx: + movzx ecx,ah + movd mm1,ecx + sub ebp,ecx + + test al,al + jnz L_test_for_length_base_mmx + + shr eax,16 + stosb + +L_while_test_mmx: + + + cmp [esp+16],edi + jbe L_break_loop + + cmp [esp+20],esi + ja L_do_loop_mmx + jmp L_break_loop + +L_test_for_length_base_mmx: + + mov edx,eax + shr edx,16 + + test al,16 + jz L_test_for_second_level_length_mmx + and eax,15 + jz L_decode_distance_mmx + + psrlq mm0,mm1 + movd mm1,eax + movd ecx,mm0 + sub ebp,eax + and ecx, [inflate_fast_mask+eax*4] + add edx,ecx + +L_decode_distance_mmx: + psrlq mm0,mm1 + + cmp ebp,32 + ja L_get_dist_code_mmx + + movd mm6,ebp + movd mm7,[esi] + add esi,4 + psllq mm7,mm6 + add ebp,32 + por mm0,mm7 + +L_get_dist_code_mmx: + mov ebx, [esp+12] + pand mm5,mm0 + movd eax,mm5 + movq mm5,mm2 + mov eax, [ebx+eax*4] + +L_dodist_mmx: + + movzx ecx,ah + mov ebx,eax + shr ebx,16 + sub ebp,ecx + movd mm1,ecx + + test al,16 + jz L_test_for_second_level_dist_mmx + and eax,15 + jz L_check_dist_one_mmx + +L_add_bits_to_dist_mmx: + psrlq mm0,mm1 + movd mm1,eax + movd ecx,mm0 + sub ebp,eax + and ecx, [inflate_fast_mask+eax*4] + add ebx,ecx + +L_check_window_mmx: + mov [esp+44],esi + mov eax,edi + sub eax, [esp+40] + + cmp eax,ebx + jb L_clip_window_mmx + + mov ecx,edx + mov esi,edi + sub esi,ebx + + sub ecx,3 + mov al, [esi] + mov [edi],al + mov al, [esi+1] + mov dl, [esi+2] + add esi,3 + mov [edi+1],al + mov [edi+2],dl + add edi,3 + rep movsb + + mov esi, [esp+44] + mov ebx, [esp+8] + jmp L_while_test_mmx + +ALIGN 4 +L_check_dist_one_mmx: + cmp ebx,1 + jne L_check_window_mmx + cmp [esp+40],edi + je L_check_window_mmx + + dec edi + mov ecx,edx + mov al, [edi] + sub ecx,3 + + mov [edi+1],al + mov [edi+2],al + mov [edi+3],al + add edi,4 + rep stosb + + mov ebx, [esp+8] + jmp L_while_test_mmx + +ALIGN 4 +L_test_for_second_level_length_mmx: + test al,64 + jnz L_test_for_end_of_block + + and eax,15 + psrlq mm0,mm1 + movd ecx,mm0 + and ecx, [inflate_fast_mask+eax*4] + add ecx,edx + mov eax, [ebx+ecx*4] + jmp L_dolen_mmx + +ALIGN 4 +L_test_for_second_level_dist_mmx: + test al,64 + jnz L_invalid_distance_code + + and eax,15 + psrlq mm0,mm1 + movd ecx,mm0 + and ecx, [inflate_fast_mask+eax*4] + mov eax, [esp+12] + add ecx,ebx + mov eax, [eax+ecx*4] + jmp L_dodist_mmx + +ALIGN 4 +L_clip_window_mmx: + + mov ecx,eax + mov eax, [esp+52] + neg ecx + mov esi, [esp+56] + + cmp eax,ebx + jb L_invalid_distance_too_far + + add ecx,ebx + cmp dword ptr [esp+48],0 + jne L_wrap_around_window_mmx + + sub eax,ecx + add esi,eax + + cmp edx,ecx + jbe L_do_copy1_mmx + + sub edx,ecx + rep movsb + mov esi,edi + sub esi,ebx + jmp L_do_copy1_mmx + + cmp edx,ecx + jbe L_do_copy1_mmx + + sub edx,ecx + rep movsb + mov esi,edi + sub esi,ebx + jmp L_do_copy1_mmx + +L_wrap_around_window_mmx: + + mov eax, [esp+48] + cmp ecx,eax + jbe L_contiguous_in_window_mmx + + add esi, [esp+52] + add esi,eax + sub esi,ecx + sub ecx,eax + + + cmp edx,ecx + jbe L_do_copy1_mmx + + sub edx,ecx + rep movsb + mov esi, [esp+56] + mov ecx, [esp+48] + cmp edx,ecx + jbe L_do_copy1_mmx + + sub edx,ecx + rep movsb + mov esi,edi + sub esi,ebx + jmp L_do_copy1_mmx + +L_contiguous_in_window_mmx: + + add esi,eax + sub esi,ecx + + + cmp edx,ecx + jbe L_do_copy1_mmx + + sub edx,ecx + rep movsb + mov esi,edi + sub esi,ebx + +L_do_copy1_mmx: + + + mov ecx,edx + rep movsb + + mov esi, [esp+44] + mov ebx, [esp+8] + jmp L_while_test_mmx +; 1174 "inffast.S" +L_invalid_distance_code: + + + + + + mov ecx, invalid_distance_code_msg + mov edx,26 + jmp L_update_stream_state + +L_test_for_end_of_block: + + + + + + test al,32 + jz L_invalid_literal_length_code + + mov ecx,0 + mov edx,11 + jmp L_update_stream_state + +L_invalid_literal_length_code: + + + + + + mov ecx, invalid_literal_length_code_msg + mov edx,26 + jmp L_update_stream_state + +L_invalid_distance_too_far: + + + + mov esi, [esp+44] + mov ecx, invalid_distance_too_far_msg + mov edx,26 + jmp L_update_stream_state + +L_update_stream_state: + + mov eax, [esp+88] + test ecx,ecx + jz L_skip_msg + mov [eax+24],ecx +L_skip_msg: + mov eax, [eax+28] + mov [eax+mode_state],edx + jmp L_break_loop + +ALIGN 4 +L_break_loop: +; 1243 "inffast.S" + cmp dword ptr [inflate_fast_use_mmx],2 + jne L_update_next_in + + + + mov ebx,ebp + +L_update_next_in: +; 1266 "inffast.S" + mov eax, [esp+88] + mov ecx,ebx + mov edx, [eax+28] + shr ecx,3 + sub esi,ecx + shl ecx,3 + sub ebx,ecx + mov [eax+12],edi + mov [edx+bits_state],ebx + mov ecx,ebx + + lea ebx, [esp+28] + cmp [esp+20],ebx + jne L_buf_not_used + + sub esi,ebx + mov ebx, [eax+0] + mov [esp+20],ebx + add esi,ebx + mov ebx, [eax+4] + sub ebx,11 + add [esp+20],ebx + +L_buf_not_used: + mov [eax+0],esi + + mov ebx,1 + shl ebx,cl + dec ebx + + + + + + cmp dword ptr [inflate_fast_use_mmx],2 + jne L_update_hold + + + + psrlq mm0,mm1 + movd ebp,mm0 + + emms + +L_update_hold: + + + + and ebp,ebx + mov [edx+hold_state],ebp + + + + + mov ebx, [esp+20] + cmp ebx,esi + jbe L_last_is_smaller + + sub ebx,esi + add ebx,11 + mov [eax+4],ebx + jmp L_fixup_out +L_last_is_smaller: + sub esi,ebx + neg esi + add esi,11 + mov [eax+4],esi + + + + +L_fixup_out: + + mov ebx, [esp+16] + cmp ebx,edi + jbe L_end_is_smaller + + sub ebx,edi + add ebx,257 + mov [eax+16],ebx + jmp L_done +L_end_is_smaller: + sub edi,ebx + neg edi + add edi,257 + mov [eax+16],edi + + + + + +L_done: + add esp,64 + popfd + pop ebx + pop ebp + pop esi + pop edi + ret + + + + +_TEXT ends +end diff --git a/cpukit/zlib/contrib/masmx86/mkasm.bat b/cpukit/zlib/contrib/masmx86/mkasm.bat new file mode 100755 index 0000000000..70a51f8377 --- /dev/null +++ b/cpukit/zlib/contrib/masmx86/mkasm.bat @@ -0,0 +1,3 @@ +cl /DASMV /I..\.. /O2 /c gvmat32c.c +ml /coff /Zi /c /Flgvmat32.lst gvmat32.asm +ml /coff /Zi /c /Flinffas32.lst inffas32.asm diff --git a/cpukit/zlib/contrib/masmx86/readme.txt b/cpukit/zlib/contrib/masmx86/readme.txt new file mode 100644 index 0000000000..7b57167b71 --- /dev/null +++ b/cpukit/zlib/contrib/masmx86/readme.txt @@ -0,0 +1,21 @@ + +Summary +------- +This directory contains ASM implementations of the functions +longest_match() and inflate_fast(). + + +Use instructions +---------------- +Copy these files into the zlib source directory, then run the +appropriate makefile, as suggested below. + + +Build instructions +------------------ +* With Microsoft C and MASM: +nmake -f win32/Makefile.msc LOC="-DASMV -DASMINF" OBJA="gvmat32c.obj gvmat32.obj inffas32.obj" + +* With Borland C and TASM: +make -f win32/Makefile.bor LOCAL_ZLIB="-DASMV -DASMINF" OBJA="gvmat32c.obj gvmat32.obj inffas32.obj" OBJPA="+gvmat32c.obj+gvmat32.obj+inffas32.obj" + diff --git a/cpukit/zlib/contrib/minizip/ChangeLogUnzip b/cpukit/zlib/contrib/minizip/ChangeLogUnzip new file mode 100644 index 0000000000..4be4d16249 --- /dev/null +++ b/cpukit/zlib/contrib/minizip/ChangeLogUnzip @@ -0,0 +1,63 @@ +Change in 1.01b (20 may 04) +- Integrate patch from Debian package (submited by Mark Brown) +- Add tools mztools from Xavier Roche + +Change in 1.01 (8 may 04) +- fix buffer overrun risk in unzip.c (Xavier Roche) +- fix a minor buffer insecurity in minizip.c (Mike Whittaker) + +Change in 1.00: (10 sept 03) +- rename to 1.00 +- cosmetic code change + +Change in 0.22: (19 May 03) +- crypting support (unless you define NOCRYPT) +- append file in existing zipfile + +Change in 0.21: (10 Mar 03) +- bug fixes + +Change in 0.17: (27 Jan 02) +- bug fixes + +Change in 0.16: (19 Jan 02) +- Support of ioapi for virtualize zip file access + +Change in 0.15: (19 Mar 98) +- fix memory leak in minizip.c + +Change in 0.14: (10 Mar 98) +- fix bugs in minizip.c sample for zipping big file +- fix problem in month in date handling +- fix bug in unzlocal_GetCurrentFileInfoInternal in unzip.c for + comment handling + +Change in 0.13: (6 Mar 98) +- fix bugs in zip.c +- add real minizip sample + +Change in 0.12: (4 Mar 98) +- add zip.c and zip.h for creates .zip file +- fix change_file_date in miniunz.c for Unix (Jean-loup Gailly) +- fix miniunz.c for file without specific record for directory + +Change in 0.11: (3 Mar 98) +- fix bug in unzGetCurrentFileInfo for get extra field and comment +- enhance miniunz sample, remove the bad unztst.c sample + +Change in 0.10: (2 Mar 98) +- fix bug in unzReadCurrentFile +- rename unzip* to unz* function and structure +- remove Windows-like hungary notation variable name +- modify some structure in unzip.h +- add somes comment in source +- remove unzipGetcCurrentFile function +- replace ZUNZEXPORT by ZEXPORT +- add unzGetLocalExtrafield for get the local extrafield info +- add a new sample, miniunz.c + +Change in 0.4: (25 Feb 98) +- suppress the type unzipFileInZip. + Only on file in the zipfile can be open at the same time +- fix somes typo in code +- added tm_unz structure in unzip_file_info (date/time in readable format) diff --git a/cpukit/zlib/contrib/minizip/Makefile b/cpukit/zlib/contrib/minizip/Makefile new file mode 100644 index 0000000000..84eaad20d4 --- /dev/null +++ b/cpukit/zlib/contrib/minizip/Makefile @@ -0,0 +1,25 @@ +CC=cc +CFLAGS=-O -I../.. + +UNZ_OBJS = miniunz.o unzip.o ioapi.o ../../libz.a +ZIP_OBJS = minizip.o zip.o ioapi.o ../../libz.a + +.c.o: + $(CC) -c $(CFLAGS) $*.c + +all: miniunz minizip + +miniunz: $(UNZ_OBJS) + $(CC) $(CFLAGS) -o $@ $(UNZ_OBJS) + +minizip: $(ZIP_OBJS) + $(CC) $(CFLAGS) -o $@ $(ZIP_OBJS) + +test: miniunz minizip + ./minizip test readme.txt + ./miniunz -l test.zip + mv readme.txt readme.old + ./miniunz test.zip + +clean: + /bin/rm -f *.o *~ minizip miniunz diff --git a/cpukit/zlib/contrib/minizip/crypt.h b/cpukit/zlib/contrib/minizip/crypt.h new file mode 100644 index 0000000000..7f8a634280 --- /dev/null +++ b/cpukit/zlib/contrib/minizip/crypt.h @@ -0,0 +1,132 @@ +/* crypt.h -- base code for crypt/uncrypt ZIPfile + + + Version 1.01, May 8th, 2004 + + Copyright (C) 1998-2004 Gilles Vollant + + This code is a modified version of crypting code in Infozip distribution + + The encryption/decryption parts of this source code (as opposed to the + non-echoing password parts) were originally written in Europe. The + whole source package can be freely distributed, including from the USA. + (Prior to January 2000, re-export from the US was a violation of US law.) + + This encryption code is a direct transcription of the algorithm from + Roger Schlafly, described by Phil Katz in the file appnote.txt. This + file (appnote.txt) is distributed with the PKZIP program (even in the + version without encryption capabilities). + + If you don't need crypting in your application, just define symbols + NOCRYPT and NOUNCRYPT. + + This code support the "Traditional PKWARE Encryption". + + The new AES encryption added on Zip format by Winzip (see the page + http://www.winzip.com/aes_info.htm ) and PKWare PKZip 5.x Strong + Encryption is not supported. +*/ + +#define CRC32(c, b) ((*(pcrc_32_tab+(((int)(c) ^ (b)) & 0xff))) ^ ((c) >> 8)) + +/*********************************************************************** + * Return the next byte in the pseudo-random sequence + */ +static int decrypt_byte(unsigned long* pkeys, const unsigned long* pcrc_32_tab) +{ + unsigned temp; /* POTENTIAL BUG: temp*(temp^1) may overflow in an + * unpredictable manner on 16-bit systems; not a problem + * with any known compiler so far, though */ + + temp = ((unsigned)(*(pkeys+2)) & 0xffff) | 2; + return (int)(((temp * (temp ^ 1)) >> 8) & 0xff); +} + +/*********************************************************************** + * Update the encryption keys with the next byte of plain text + */ +static int update_keys(unsigned long* pkeys,const unsigned long* pcrc_32_tab,int c) +{ + (*(pkeys+0)) = CRC32((*(pkeys+0)), c); + (*(pkeys+1)) += (*(pkeys+0)) & 0xff; + (*(pkeys+1)) = (*(pkeys+1)) * 134775813L + 1; + { + register int keyshift = (int)((*(pkeys+1)) >> 24); + (*(pkeys+2)) = CRC32((*(pkeys+2)), keyshift); + } + return c; +} + + +/*********************************************************************** + * Initialize the encryption keys and the random header according to + * the given password. + */ +static void init_keys(const char* passwd,unsigned long* pkeys,const unsigned long* pcrc_32_tab) +{ + *(pkeys+0) = 305419896L; + *(pkeys+1) = 591751049L; + *(pkeys+2) = 878082192L; + while (*passwd != '\0') { + update_keys(pkeys,pcrc_32_tab,(int)*passwd); + passwd++; + } +} + +#define zdecode(pkeys,pcrc_32_tab,c) \ + (update_keys(pkeys,pcrc_32_tab,c ^= decrypt_byte(pkeys,pcrc_32_tab))) + +#define zencode(pkeys,pcrc_32_tab,c,t) \ + (t=decrypt_byte(pkeys,pcrc_32_tab), update_keys(pkeys,pcrc_32_tab,c), t^(c)) + +#ifdef INCLUDECRYPTINGCODE_IFCRYPTALLOWED + +#define RAND_HEAD_LEN 12 + /* "last resort" source for second part of crypt seed pattern */ +# ifndef ZCR_SEED2 +# define ZCR_SEED2 3141592654UL /* use PI as default pattern */ +# endif + +static int crypthead(passwd, buf, bufSize, pkeys, pcrc_32_tab, crcForCrypting) + const char *passwd; /* password string */ + unsigned char *buf; /* where to write header */ + int bufSize; + unsigned long* pkeys; + const unsigned long* pcrc_32_tab; + unsigned long crcForCrypting; +{ + int n; /* index in random header */ + int t; /* temporary */ + int c; /* random byte */ + unsigned char header[RAND_HEAD_LEN-2]; /* random header */ + static unsigned calls = 0; /* ensure different random header each time */ + + if (bufSize> 7) & 0xff; + header[n] = (unsigned char)zencode(pkeys, pcrc_32_tab, c, t); + } + /* Encrypt random header (last two bytes is high word of crc) */ + init_keys(passwd, pkeys, pcrc_32_tab); + for (n = 0; n < RAND_HEAD_LEN-2; n++) + { + buf[n] = (unsigned char)zencode(pkeys, pcrc_32_tab, header[n], t); + } + buf[n++] = zencode(pkeys, pcrc_32_tab, (int)(crcForCrypting >> 16) & 0xff, t); + buf[n++] = zencode(pkeys, pcrc_32_tab, (int)(crcForCrypting >> 24) & 0xff, t); + return n; +} + +#endif diff --git a/cpukit/zlib/contrib/minizip/ioapi.c b/cpukit/zlib/contrib/minizip/ioapi.c new file mode 100644 index 0000000000..c9e69f27ca --- /dev/null +++ b/cpukit/zlib/contrib/minizip/ioapi.c @@ -0,0 +1,177 @@ +/* ioapi.c -- IO base function header for compress/uncompress .zip + files using zlib + zip or unzip API + + Version 1.01, May 8th, 2004 + + Copyright (C) 1998-2004 Gilles Vollant +*/ + +#include +#include +#include + +#include "zlib.h" +#include "ioapi.h" + + + +/* I've found an old Unix (a SunOS 4.1.3_U1) without all SEEK_* defined.... */ + +#ifndef SEEK_CUR +#define SEEK_CUR 1 +#endif + +#ifndef SEEK_END +#define SEEK_END 2 +#endif + +#ifndef SEEK_SET +#define SEEK_SET 0 +#endif + +voidpf ZCALLBACK fopen_file_func OF(( + voidpf opaque, + const char* filename, + int mode)); + +uLong ZCALLBACK fread_file_func OF(( + voidpf opaque, + voidpf stream, + void* buf, + uLong size)); + +uLong ZCALLBACK fwrite_file_func OF(( + voidpf opaque, + voidpf stream, + const void* buf, + uLong size)); + +long ZCALLBACK ftell_file_func OF(( + voidpf opaque, + voidpf stream)); + +long ZCALLBACK fseek_file_func OF(( + voidpf opaque, + voidpf stream, + uLong offset, + int origin)); + +int ZCALLBACK fclose_file_func OF(( + voidpf opaque, + voidpf stream)); + +int ZCALLBACK ferror_file_func OF(( + voidpf opaque, + voidpf stream)); + + +voidpf ZCALLBACK fopen_file_func (opaque, filename, mode) + voidpf opaque; + const char* filename; + int mode; +{ + FILE* file = NULL; + const char* mode_fopen = NULL; + if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ) + mode_fopen = "rb"; + else + if (mode & ZLIB_FILEFUNC_MODE_EXISTING) + mode_fopen = "r+b"; + else + if (mode & ZLIB_FILEFUNC_MODE_CREATE) + mode_fopen = "wb"; + + if ((filename!=NULL) && (mode_fopen != NULL)) + file = fopen(filename, mode_fopen); + return file; +} + + +uLong ZCALLBACK fread_file_func (opaque, stream, buf, size) + voidpf opaque; + voidpf stream; + void* buf; + uLong size; +{ + uLong ret; + ret = (uLong)fread(buf, 1, (size_t)size, (FILE *)stream); + return ret; +} + + +uLong ZCALLBACK fwrite_file_func (opaque, stream, buf, size) + voidpf opaque; + voidpf stream; + const void* buf; + uLong size; +{ + uLong ret; + ret = (uLong)fwrite(buf, 1, (size_t)size, (FILE *)stream); + return ret; +} + +long ZCALLBACK ftell_file_func (opaque, stream) + voidpf opaque; + voidpf stream; +{ + long ret; + ret = ftell((FILE *)stream); + return ret; +} + +long ZCALLBACK fseek_file_func (opaque, stream, offset, origin) + voidpf opaque; + voidpf stream; + uLong offset; + int origin; +{ + int fseek_origin=0; + long ret; + switch (origin) + { + case ZLIB_FILEFUNC_SEEK_CUR : + fseek_origin = SEEK_CUR; + break; + case ZLIB_FILEFUNC_SEEK_END : + fseek_origin = SEEK_END; + break; + case ZLIB_FILEFUNC_SEEK_SET : + fseek_origin = SEEK_SET; + break; + default: return -1; + } + ret = 0; + fseek((FILE *)stream, offset, fseek_origin); + return ret; +} + +int ZCALLBACK fclose_file_func (opaque, stream) + voidpf opaque; + voidpf stream; +{ + int ret; + ret = fclose((FILE *)stream); + return ret; +} + +int ZCALLBACK ferror_file_func (opaque, stream) + voidpf opaque; + voidpf stream; +{ + int ret; + ret = ferror((FILE *)stream); + return ret; +} + +void fill_fopen_filefunc (pzlib_filefunc_def) + zlib_filefunc_def* pzlib_filefunc_def; +{ + pzlib_filefunc_def->zopen_file = fopen_file_func; + pzlib_filefunc_def->zread_file = fread_file_func; + pzlib_filefunc_def->zwrite_file = fwrite_file_func; + pzlib_filefunc_def->ztell_file = ftell_file_func; + pzlib_filefunc_def->zseek_file = fseek_file_func; + pzlib_filefunc_def->zclose_file = fclose_file_func; + pzlib_filefunc_def->zerror_file = ferror_file_func; + pzlib_filefunc_def->opaque = NULL; +} diff --git a/cpukit/zlib/contrib/minizip/ioapi.h b/cpukit/zlib/contrib/minizip/ioapi.h new file mode 100644 index 0000000000..b76116178a --- /dev/null +++ b/cpukit/zlib/contrib/minizip/ioapi.h @@ -0,0 +1,75 @@ +/* ioapi.h -- IO base function header for compress/uncompress .zip + files using zlib + zip or unzip API + + Version 1.01, May 8th, 2004 + + Copyright (C) 1998-2004 Gilles Vollant +*/ + +#ifndef _ZLIBIOAPI_H +#define _ZLIBIOAPI_H + + +#define ZLIB_FILEFUNC_SEEK_CUR (1) +#define ZLIB_FILEFUNC_SEEK_END (2) +#define ZLIB_FILEFUNC_SEEK_SET (0) + +#define ZLIB_FILEFUNC_MODE_READ (1) +#define ZLIB_FILEFUNC_MODE_WRITE (2) +#define ZLIB_FILEFUNC_MODE_READWRITEFILTER (3) + +#define ZLIB_FILEFUNC_MODE_EXISTING (4) +#define ZLIB_FILEFUNC_MODE_CREATE (8) + + +#ifndef ZCALLBACK + +#if (defined(WIN32) || defined (WINDOWS) || defined (_WINDOWS)) && defined(CALLBACK) && defined (USEWINDOWS_CALLBACK) +#define ZCALLBACK CALLBACK +#else +#define ZCALLBACK +#endif +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +typedef voidpf (ZCALLBACK *open_file_func) OF((voidpf opaque, const char* filename, int mode)); +typedef uLong (ZCALLBACK *read_file_func) OF((voidpf opaque, voidpf stream, void* buf, uLong size)); +typedef uLong (ZCALLBACK *write_file_func) OF((voidpf opaque, voidpf stream, const void* buf, uLong size)); +typedef long (ZCALLBACK *tell_file_func) OF((voidpf opaque, voidpf stream)); +typedef long (ZCALLBACK *seek_file_func) OF((voidpf opaque, voidpf stream, uLong offset, int origin)); +typedef int (ZCALLBACK *close_file_func) OF((voidpf opaque, voidpf stream)); +typedef int (ZCALLBACK *testerror_file_func) OF((voidpf opaque, voidpf stream)); + +typedef struct zlib_filefunc_def_s +{ + open_file_func zopen_file; + read_file_func zread_file; + write_file_func zwrite_file; + tell_file_func ztell_file; + seek_file_func zseek_file; + close_file_func zclose_file; + testerror_file_func zerror_file; + voidpf opaque; +} zlib_filefunc_def; + + + +void fill_fopen_filefunc OF((zlib_filefunc_def* pzlib_filefunc_def)); + +#define ZREAD(filefunc,filestream,buf,size) ((*((filefunc).zread_file))((filefunc).opaque,filestream,buf,size)) +#define ZWRITE(filefunc,filestream,buf,size) ((*((filefunc).zwrite_file))((filefunc).opaque,filestream,buf,size)) +#define ZTELL(filefunc,filestream) ((*((filefunc).ztell_file))((filefunc).opaque,filestream)) +#define ZSEEK(filefunc,filestream,pos,mode) ((*((filefunc).zseek_file))((filefunc).opaque,filestream,pos,mode)) +#define ZCLOSE(filefunc,filestream) ((*((filefunc).zclose_file))((filefunc).opaque,filestream)) +#define ZERROR(filefunc,filestream) ((*((filefunc).zerror_file))((filefunc).opaque,filestream)) + + +#ifdef __cplusplus +} +#endif + +#endif + diff --git a/cpukit/zlib/contrib/minizip/iowin32.c b/cpukit/zlib/contrib/minizip/iowin32.c new file mode 100644 index 0000000000..940dc0b498 --- /dev/null +++ b/cpukit/zlib/contrib/minizip/iowin32.c @@ -0,0 +1,270 @@ +/* iowin32.c -- IO base function header for compress/uncompress .zip + files using zlib + zip or unzip API + This IO API version uses the Win32 API (for Microsoft Windows) + + Version 1.01, May 8th, 2004 + + Copyright (C) 1998-2004 Gilles Vollant +*/ + +#include + +#include "zlib.h" +#include "ioapi.h" +#include "iowin32.h" + +#ifndef INVALID_HANDLE_VALUE +#define INVALID_HANDLE_VALUE (0xFFFFFFFF) +#endif + +#ifndef INVALID_SET_FILE_POINTER +#define INVALID_SET_FILE_POINTER ((DWORD)-1) +#endif + +voidpf ZCALLBACK win32_open_file_func OF(( + voidpf opaque, + const char* filename, + int mode)); + +uLong ZCALLBACK win32_read_file_func OF(( + voidpf opaque, + voidpf stream, + void* buf, + uLong size)); + +uLong ZCALLBACK win32_write_file_func OF(( + voidpf opaque, + voidpf stream, + const void* buf, + uLong size)); + +long ZCALLBACK win32_tell_file_func OF(( + voidpf opaque, + voidpf stream)); + +long ZCALLBACK win32_seek_file_func OF(( + voidpf opaque, + voidpf stream, + uLong offset, + int origin)); + +int ZCALLBACK win32_close_file_func OF(( + voidpf opaque, + voidpf stream)); + +int ZCALLBACK win32_error_file_func OF(( + voidpf opaque, + voidpf stream)); + +typedef struct +{ + HANDLE hf; + int error; +} WIN32FILE_IOWIN; + +voidpf ZCALLBACK win32_open_file_func (opaque, filename, mode) + voidpf opaque; + const char* filename; + int mode; +{ + const char* mode_fopen = NULL; + DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ; + HANDLE hFile = 0; + voidpf ret=NULL; + + dwDesiredAccess = dwShareMode = dwFlagsAndAttributes = 0; + + if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ) + { + dwDesiredAccess = GENERIC_READ; + dwCreationDisposition = OPEN_EXISTING; + dwShareMode = FILE_SHARE_READ; + } + else + if (mode & ZLIB_FILEFUNC_MODE_EXISTING) + { + dwDesiredAccess = GENERIC_WRITE | GENERIC_READ; + dwCreationDisposition = OPEN_EXISTING; + } + else + if (mode & ZLIB_FILEFUNC_MODE_CREATE) + { + dwDesiredAccess = GENERIC_WRITE | GENERIC_READ; + dwCreationDisposition = CREATE_ALWAYS; + } + + if ((filename!=NULL) && (dwDesiredAccess != 0)) + hFile = CreateFile((LPCTSTR)filename, dwDesiredAccess, dwShareMode, NULL, + dwCreationDisposition, dwFlagsAndAttributes, NULL); + + if (hFile == INVALID_HANDLE_VALUE) + hFile = NULL; + + if (hFile != NULL) + { + WIN32FILE_IOWIN w32fiow; + w32fiow.hf = hFile; + w32fiow.error = 0; + ret = malloc(sizeof(WIN32FILE_IOWIN)); + if (ret==NULL) + CloseHandle(hFile); + else *((WIN32FILE_IOWIN*)ret) = w32fiow; + } + return ret; +} + + +uLong ZCALLBACK win32_read_file_func (opaque, stream, buf, size) + voidpf opaque; + voidpf stream; + void* buf; + uLong size; +{ + uLong ret=0; + HANDLE hFile = NULL; + if (stream!=NULL) + hFile = ((WIN32FILE_IOWIN*)stream) -> hf; + if (hFile != NULL) + if (!ReadFile(hFile, buf, size, &ret, NULL)) + { + DWORD dwErr = GetLastError(); + if (dwErr == ERROR_HANDLE_EOF) + dwErr = 0; + ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr; + } + + return ret; +} + + +uLong ZCALLBACK win32_write_file_func (opaque, stream, buf, size) + voidpf opaque; + voidpf stream; + const void* buf; + uLong size; +{ + uLong ret=0; + HANDLE hFile = NULL; + if (stream!=NULL) + hFile = ((WIN32FILE_IOWIN*)stream) -> hf; + + if (hFile !=NULL) + if (!WriteFile(hFile, buf, size, &ret, NULL)) + { + DWORD dwErr = GetLastError(); + if (dwErr == ERROR_HANDLE_EOF) + dwErr = 0; + ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr; + } + + return ret; +} + +long ZCALLBACK win32_tell_file_func (opaque, stream) + voidpf opaque; + voidpf stream; +{ + long ret=-1; + HANDLE hFile = NULL; + if (stream!=NULL) + hFile = ((WIN32FILE_IOWIN*)stream) -> hf; + if (hFile != NULL) + { + DWORD dwSet = SetFilePointer(hFile, 0, NULL, FILE_CURRENT); + if (dwSet == INVALID_SET_FILE_POINTER) + { + DWORD dwErr = GetLastError(); + ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr; + ret = -1; + } + else + ret=(long)dwSet; + } + return ret; +} + +long ZCALLBACK win32_seek_file_func (opaque, stream, offset, origin) + voidpf opaque; + voidpf stream; + uLong offset; + int origin; +{ + DWORD dwMoveMethod=0xFFFFFFFF; + HANDLE hFile = NULL; + + long ret=-1; + if (stream!=NULL) + hFile = ((WIN32FILE_IOWIN*)stream) -> hf; + switch (origin) + { + case ZLIB_FILEFUNC_SEEK_CUR : + dwMoveMethod = FILE_CURRENT; + break; + case ZLIB_FILEFUNC_SEEK_END : + dwMoveMethod = FILE_END; + break; + case ZLIB_FILEFUNC_SEEK_SET : + dwMoveMethod = FILE_BEGIN; + break; + default: return -1; + } + + if (hFile != NULL) + { + DWORD dwSet = SetFilePointer(hFile, offset, NULL, dwMoveMethod); + if (dwSet == INVALID_SET_FILE_POINTER) + { + DWORD dwErr = GetLastError(); + ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr; + ret = -1; + } + else + ret=0; + } + return ret; +} + +int ZCALLBACK win32_close_file_func (opaque, stream) + voidpf opaque; + voidpf stream; +{ + int ret=-1; + + if (stream!=NULL) + { + HANDLE hFile; + hFile = ((WIN32FILE_IOWIN*)stream) -> hf; + if (hFile != NULL) + { + CloseHandle(hFile); + ret=0; + } + free(stream); + } + return ret; +} + +int ZCALLBACK win32_error_file_func (opaque, stream) + voidpf opaque; + voidpf stream; +{ + int ret=-1; + if (stream!=NULL) + { + ret = ((WIN32FILE_IOWIN*)stream) -> error; + } + return ret; +} + +void fill_win32_filefunc (pzlib_filefunc_def) + zlib_filefunc_def* pzlib_filefunc_def; +{ + pzlib_filefunc_def->zopen_file = win32_open_file_func; + pzlib_filefunc_def->zread_file = win32_read_file_func; + pzlib_filefunc_def->zwrite_file = win32_write_file_func; + pzlib_filefunc_def->ztell_file = win32_tell_file_func; + pzlib_filefunc_def->zseek_file = win32_seek_file_func; + pzlib_filefunc_def->zclose_file = win32_close_file_func; + pzlib_filefunc_def->zerror_file = win32_error_file_func; + pzlib_filefunc_def->opaque=NULL; +} diff --git a/cpukit/zlib/contrib/minizip/iowin32.h b/cpukit/zlib/contrib/minizip/iowin32.h new file mode 100644 index 0000000000..8774fe7406 --- /dev/null +++ b/cpukit/zlib/contrib/minizip/iowin32.h @@ -0,0 +1,21 @@ +/* iowin32.h -- IO base function header for compress/uncompress .zip + files using zlib + zip or unzip API + This IO API version uses the Win32 API (for Microsoft Windows) + + Version 1.01, May 8th, 2004 + + Copyright (C) 1998-2004 Gilles Vollant +*/ + +#include + + +#ifdef __cplusplus +extern "C" { +#endif + +void fill_win32_filefunc OF((zlib_filefunc_def* pzlib_filefunc_def)); + +#ifdef __cplusplus +} +#endif diff --git a/cpukit/zlib/contrib/minizip/miniunz.c b/cpukit/zlib/contrib/minizip/miniunz.c new file mode 100644 index 0000000000..a6b06a2082 --- /dev/null +++ b/cpukit/zlib/contrib/minizip/miniunz.c @@ -0,0 +1,585 @@ +/* + miniunz.c + Version 1.01b, May 30th, 2004 + + Copyright (C) 1998-2004 Gilles Vollant +*/ + + +#include +#include +#include +#include +#include +#include + +#ifdef unix +# include +# include +#else +# include +# include +#endif + +#include "unzip.h" + +#define CASESENSITIVITY (0) +#define WRITEBUFFERSIZE (8192) +#define MAXFILENAME (256) + +#ifdef WIN32 +#define USEWIN32IOAPI +#include "iowin32.h" +#endif +/* + mini unzip, demo of unzip package + + usage : + Usage : miniunz [-exvlo] file.zip [file_to_extract] [-d extractdir] + + list the file in the zipfile, and print the content of FILE_ID.ZIP or README.TXT + if it exists +*/ + + +/* change_file_date : change the date/time of a file + filename : the filename of the file where date/time must be modified + dosdate : the new date at the MSDos format (4 bytes) + tmu_date : the SAME new date at the tm_unz format */ +void change_file_date(filename,dosdate,tmu_date) + const char *filename; + uLong dosdate; + tm_unz tmu_date; +{ +#ifdef WIN32 + HANDLE hFile; + FILETIME ftm,ftLocal,ftCreate,ftLastAcc,ftLastWrite; + + hFile = CreateFile(filename,GENERIC_READ | GENERIC_WRITE, + 0,NULL,OPEN_EXISTING,0,NULL); + GetFileTime(hFile,&ftCreate,&ftLastAcc,&ftLastWrite); + DosDateTimeToFileTime((WORD)(dosdate>>16),(WORD)dosdate,&ftLocal); + LocalFileTimeToFileTime(&ftLocal,&ftm); + SetFileTime(hFile,&ftm,&ftLastAcc,&ftm); + CloseHandle(hFile); +#else +#ifdef unix + struct utimbuf ut; + struct tm newdate; + newdate.tm_sec = tmu_date.tm_sec; + newdate.tm_min=tmu_date.tm_min; + newdate.tm_hour=tmu_date.tm_hour; + newdate.tm_mday=tmu_date.tm_mday; + newdate.tm_mon=tmu_date.tm_mon; + if (tmu_date.tm_year > 1900) + newdate.tm_year=tmu_date.tm_year - 1900; + else + newdate.tm_year=tmu_date.tm_year ; + newdate.tm_isdst=-1; + + ut.actime=ut.modtime=mktime(&newdate); + utime(filename,&ut); +#endif +#endif +} + + +/* mymkdir and change_file_date are not 100 % portable + As I don't know well Unix, I wait feedback for the unix portion */ + +int mymkdir(dirname) + const char* dirname; +{ + int ret=0; +#ifdef WIN32 + ret = mkdir(dirname); +#else +#ifdef unix + ret = mkdir (dirname,0775); +#endif +#endif + return ret; +} + +int makedir (newdir) + char *newdir; +{ + char *buffer ; + char *p; + int len = (int)strlen(newdir); + + if (len <= 0) + return 0; + + buffer = (char*)malloc(len+1); + strcpy(buffer,newdir); + + if (buffer[len-1] == '/') { + buffer[len-1] = '\0'; + } + if (mymkdir(buffer) == 0) + { + free(buffer); + return 1; + } + + p = buffer+1; + while (1) + { + char hold; + + while(*p && *p != '\\' && *p != '/') + p++; + hold = *p; + *p = 0; + if ((mymkdir(buffer) == -1) && (errno == ENOENT)) + { + printf("couldn't create directory %s\n",buffer); + free(buffer); + return 0; + } + if (hold == 0) + break; + *p++ = hold; + } + free(buffer); + return 1; +} + +void do_banner() +{ + printf("MiniUnz 1.01b, demo of zLib + Unz package written by Gilles Vollant\n"); + printf("more info at http://www.winimage.com/zLibDll/unzip.html\n\n"); +} + +void do_help() +{ + printf("Usage : miniunz [-e] [-x] [-v] [-l] [-o] [-p password] file.zip [file_to_extr.] [-d extractdir]\n\n" \ + " -e Extract without pathname (junk paths)\n" \ + " -x Extract with pathname\n" \ + " -v list files\n" \ + " -l list files\n" \ + " -d directory to extract into\n" \ + " -o overwrite files without prompting\n" \ + " -p extract crypted file using password\n\n"); +} + + +int do_list(uf) + unzFile uf; +{ + uLong i; + unz_global_info gi; + int err; + + err = unzGetGlobalInfo (uf,&gi); + if (err!=UNZ_OK) + printf("error %d with zipfile in unzGetGlobalInfo \n",err); + printf(" Length Method Size Ratio Date Time CRC-32 Name\n"); + printf(" ------ ------ ---- ----- ---- ---- ------ ----\n"); + for (i=0;i0) + ratio = (file_info.compressed_size*100)/file_info.uncompressed_size; + + /* display a '*' if the file is crypted */ + if ((file_info.flag & 1) != 0) + charCrypt='*'; + + if (file_info.compression_method==0) + string_method="Stored"; + else + if (file_info.compression_method==Z_DEFLATED) + { + uInt iLevel=(uInt)((file_info.flag & 0x6)/2); + if (iLevel==0) + string_method="Defl:N"; + else if (iLevel==1) + string_method="Defl:X"; + else if ((iLevel==2) || (iLevel==3)) + string_method="Defl:F"; /* 2:fast , 3 : extra fast*/ + } + else + string_method="Unkn. "; + + printf("%7lu %6s%c%7lu %3lu%% %2.2lu-%2.2lu-%2.2lu %2.2lu:%2.2lu %8.8lx %s\n", + file_info.uncompressed_size,string_method, + charCrypt, + file_info.compressed_size, + ratio, + (uLong)file_info.tmu_date.tm_mon + 1, + (uLong)file_info.tmu_date.tm_mday, + (uLong)file_info.tmu_date.tm_year % 100, + (uLong)file_info.tmu_date.tm_hour,(uLong)file_info.tmu_date.tm_min, + (uLong)file_info.crc,filename_inzip); + if ((i+1)='a') && (rep<='z')) + rep -= 0x20; + } + while ((rep!='Y') && (rep!='N') && (rep!='A')); + } + + if (rep == 'N') + skip = 1; + + if (rep == 'A') + *popt_overwrite=1; + } + + if ((skip==0) && (err==UNZ_OK)) + { + fout=fopen(write_filename,"wb"); + + /* some zipfile don't contain directory alone before file */ + if ((fout==NULL) && ((*popt_extract_without_path)==0) && + (filename_withoutpath!=(char*)filename_inzip)) + { + char c=*(filename_withoutpath-1); + *(filename_withoutpath-1)='\0'; + makedir(write_filename); + *(filename_withoutpath-1)=c; + fout=fopen(write_filename,"wb"); + } + + if (fout==NULL) + { + printf("error opening %s\n",write_filename); + } + } + + if (fout!=NULL) + { + printf(" extracting: %s\n",write_filename); + + do + { + err = unzReadCurrentFile(uf,buf,size_buf); + if (err<0) + { + printf("error %d with zipfile in unzReadCurrentFile\n",err); + break; + } + if (err>0) + if (fwrite(buf,err,1,fout)!=1) + { + printf("error in writing extracted file\n"); + err=UNZ_ERRNO; + break; + } + } + while (err>0); + if (fout) + fclose(fout); + + if (err==0) + change_file_date(write_filename,file_info.dosDate, + file_info.tmu_date); + } + + if (err==UNZ_OK) + { + err = unzCloseCurrentFile (uf); + if (err!=UNZ_OK) + { + printf("error %d with zipfile in unzCloseCurrentFile\n",err); + } + } + else + unzCloseCurrentFile(uf); /* don't lose the error */ + } + + free(buf); + return err; +} + + +int do_extract(uf,opt_extract_without_path,opt_overwrite,password) + unzFile uf; + int opt_extract_without_path; + int opt_overwrite; + const char* password; +{ + uLong i; + unz_global_info gi; + int err; + FILE* fout=NULL; + + err = unzGetGlobalInfo (uf,&gi); + if (err!=UNZ_OK) + printf("error %d with zipfile in unzGetGlobalInfo \n",err); + + for (i=0;i +#include +#include +#include +#include +#include + +#ifdef unix +# include +# include +# include +# include +#else +# include +# include +#endif + +#include "zip.h" + +#ifdef WIN32 +#define USEWIN32IOAPI +#include "iowin32.h" +#endif + + + +#define WRITEBUFFERSIZE (16384) +#define MAXFILENAME (256) + +#ifdef WIN32 +uLong filetime(f, tmzip, dt) + char *f; /* name of file to get info on */ + tm_zip *tmzip; /* return value: access, modific. and creation times */ + uLong *dt; /* dostime */ +{ + int ret = 0; + { + FILETIME ftLocal; + HANDLE hFind; + WIN32_FIND_DATA ff32; + + hFind = FindFirstFile(f,&ff32); + if (hFind != INVALID_HANDLE_VALUE) + { + FileTimeToLocalFileTime(&(ff32.ftLastWriteTime),&ftLocal); + FileTimeToDosDateTime(&ftLocal,((LPWORD)dt)+1,((LPWORD)dt)+0); + FindClose(hFind); + ret = 1; + } + } + return ret; +} +#else +#ifdef unix +uLong filetime(f, tmzip, dt) + char *f; /* name of file to get info on */ + tm_zip *tmzip; /* return value: access, modific. and creation times */ + uLong *dt; /* dostime */ +{ + int ret=0; + struct stat s; /* results of stat() */ + struct tm* filedate; + time_t tm_t=0; + + if (strcmp(f,"-")!=0) + { + char name[MAXFILENAME+1]; + int len = strlen(f); + if (len > MAXFILENAME) + len = MAXFILENAME; + + strncpy(name, f,MAXFILENAME-1); + /* strncpy doesnt append the trailing NULL, of the string is too long. */ + name[ MAXFILENAME ] = '\0'; + + if (name[len - 1] == '/') + name[len - 1] = '\0'; + /* not all systems allow stat'ing a file with / appended */ + if (stat(name,&s)==0) + { + tm_t = s.st_mtime; + ret = 1; + } + } + filedate = localtime(&tm_t); + + tmzip->tm_sec = filedate->tm_sec; + tmzip->tm_min = filedate->tm_min; + tmzip->tm_hour = filedate->tm_hour; + tmzip->tm_mday = filedate->tm_mday; + tmzip->tm_mon = filedate->tm_mon ; + tmzip->tm_year = filedate->tm_year; + + return ret; +} +#else +uLong filetime(f, tmzip, dt) + char *f; /* name of file to get info on */ + tm_zip *tmzip; /* return value: access, modific. and creation times */ + uLong *dt; /* dostime */ +{ + return 0; +} +#endif +#endif + + + + +int check_exist_file(filename) + const char* filename; +{ + FILE* ftestexist; + int ret = 1; + ftestexist = fopen(filename,"rb"); + if (ftestexist==NULL) + ret = 0; + else + fclose(ftestexist); + return ret; +} + +void do_banner() +{ + printf("MiniZip 1.01b, demo of zLib + Zip package written by Gilles Vollant\n"); + printf("more info at http://www.winimage.com/zLibDll/unzip.html\n\n"); +} + +void do_help() +{ + printf("Usage : minizip [-o] [-a] [-0 to -9] [-p password] file.zip [files_to_add]\n\n" \ + " -o Overwrite existing file.zip\n" \ + " -a Append to existing file.zip\n" \ + " -0 Store only\n" \ + " -1 Compress faster\n" \ + " -9 Compress better\n\n"); +} + +/* calculate the CRC32 of a file, + because to encrypt a file, we need known the CRC32 of the file before */ +int getFileCrc(const char* filenameinzip,void*buf,unsigned long size_buf,unsigned long* result_crc) +{ + unsigned long calculate_crc=0; + int err=ZIP_OK; + FILE * fin = fopen(filenameinzip,"rb"); + unsigned long size_read = 0; + unsigned long total_read = 0; + if (fin==NULL) + { + err = ZIP_ERRNO; + } + + if (err == ZIP_OK) + do + { + err = ZIP_OK; + size_read = (int)fread(buf,1,size_buf,fin); + if (size_read < size_buf) + if (feof(fin)==0) + { + printf("error in reading %s\n",filenameinzip); + err = ZIP_ERRNO; + } + + if (size_read>0) + calculate_crc = crc32(calculate_crc,buf,size_read); + total_read += size_read; + + } while ((err == ZIP_OK) && (size_read>0)); + + if (fin) + fclose(fin); + + *result_crc=calculate_crc; + printf("file %s crc %x\n",filenameinzip,calculate_crc); + return err; +} + +int main(argc,argv) + int argc; + char *argv[]; +{ + int i; + int opt_overwrite=0; + int opt_compress_level=Z_DEFAULT_COMPRESSION; + int zipfilenamearg = 0; + char filename_try[MAXFILENAME+16]; + int zipok; + int err=0; + int size_buf=0; + void* buf=NULL; + const char* password=NULL; + + + do_banner(); + if (argc==1) + { + do_help(); + return 0; + } + else + { + for (i=1;i='0') && (c<='9')) + opt_compress_level = c-'0'; + + if (((c=='p') || (c=='P')) && (i+1='a') && (rep<='z')) + rep -= 0x20; + } + while ((rep!='Y') && (rep!='N') && (rep!='A')); + if (rep=='N') + zipok = 0; + if (rep=='A') + opt_overwrite = 2; + } + } + + if (zipok==1) + { + zipFile zf; + int errclose; +# ifdef USEWIN32IOAPI + zlib_filefunc_def ffunc; + fill_win32_filefunc(&ffunc); + zf = zipOpen2(filename_try,(opt_overwrite==2) ? 2 : 0,NULL,&ffunc); +# else + zf = zipOpen(filename_try,(opt_overwrite==2) ? 2 : 0); +# endif + + if (zf == NULL) + { + printf("error opening %s\n",filename_try); + err= ZIP_ERRNO; + } + else + printf("creating %s\n",filename_try); + + for (i=zipfilenamearg+1;(i='0') || (argv[i][1]<='9'))) && + (strlen(argv[i]) == 2))) + { + FILE * fin; + int size_read; + const char* filenameinzip = argv[i]; + zip_fileinfo zi; + unsigned long crcFile=0; + + zi.tmz_date.tm_sec = zi.tmz_date.tm_min = zi.tmz_date.tm_hour = + zi.tmz_date.tm_mday = zi.tmz_date.tm_mon = zi.tmz_date.tm_year = 0; + zi.dosDate = 0; + zi.internal_fa = 0; + zi.external_fa = 0; + filetime(filenameinzip,&zi.tmz_date,&zi.dosDate); + +/* + err = zipOpenNewFileInZip(zf,filenameinzip,&zi, + NULL,0,NULL,0,NULL / * comment * /, + (opt_compress_level != 0) ? Z_DEFLATED : 0, + opt_compress_level); +*/ + if ((password != NULL) && (err==ZIP_OK)) + err = getFileCrc(filenameinzip,buf,size_buf,&crcFile); + + err = zipOpenNewFileInZip3(zf,filenameinzip,&zi, + NULL,0,NULL,0,NULL /* comment*/, + (opt_compress_level != 0) ? Z_DEFLATED : 0, + opt_compress_level,0, + /* -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY, */ + -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY, + password,crcFile); + + if (err != ZIP_OK) + printf("error in opening %s in zipfile\n",filenameinzip); + else + { + fin = fopen(filenameinzip,"rb"); + if (fin==NULL) + { + err=ZIP_ERRNO; + printf("error in opening %s for reading\n",filenameinzip); + } + } + + if (err == ZIP_OK) + do + { + err = ZIP_OK; + size_read = (int)fread(buf,1,size_buf,fin); + if (size_read < size_buf) + if (feof(fin)==0) + { + printf("error in reading %s\n",filenameinzip); + err = ZIP_ERRNO; + } + + if (size_read>0) + { + err = zipWriteInFileInZip (zf,buf,size_read); + if (err<0) + { + printf("error in writing %s in the zipfile\n", + filenameinzip); + } + + } + } while ((err == ZIP_OK) && (size_read>0)); + + if (fin) + fclose(fin); + + if (err<0) + err=ZIP_ERRNO; + else + { + err = zipCloseFileInZip(zf); + if (err!=ZIP_OK) + printf("error in closing %s in the zipfile\n", + filenameinzip); + } + } + } + errclose = zipClose(zf,NULL); + if (errclose != ZIP_OK) + printf("error in closing %s\n",filename_try); + } + else + { + do_help(); + } + + free(buf); + return 0; +} diff --git a/cpukit/zlib/contrib/minizip/mztools.c b/cpukit/zlib/contrib/minizip/mztools.c new file mode 100644 index 0000000000..c1266bc6c8 --- /dev/null +++ b/cpukit/zlib/contrib/minizip/mztools.c @@ -0,0 +1,281 @@ +/* + Additional tools for Minizip + Code: Xavier Roche '2004 + License: Same as ZLIB (www.gzip.org) +*/ + +/* Code */ +#include +#include +#include +#include "zlib.h" +#include "unzip.h" + +#define READ_8(adr) ((unsigned char)*(adr)) +#define READ_16(adr) ( READ_8(adr) | (READ_8(adr+1) << 8) ) +#define READ_32(adr) ( READ_16(adr) | (READ_16((adr)+2) << 16) ) + +#define WRITE_8(buff, n) do { \ + *((unsigned char*)(buff)) = (unsigned char) ((n) & 0xff); \ +} while(0) +#define WRITE_16(buff, n) do { \ + WRITE_8((unsigned char*)(buff), n); \ + WRITE_8(((unsigned char*)(buff)) + 1, (n) >> 8); \ +} while(0) +#define WRITE_32(buff, n) do { \ + WRITE_16((unsigned char*)(buff), (n) & 0xffff); \ + WRITE_16((unsigned char*)(buff) + 2, (n) >> 16); \ +} while(0) + +extern int ZEXPORT unzRepair(file, fileOut, fileOutTmp, nRecovered, bytesRecovered) +const char* file; +const char* fileOut; +const char* fileOutTmp; +uLong* nRecovered; +uLong* bytesRecovered; +{ + int err = Z_OK; + FILE* fpZip = fopen(file, "rb"); + FILE* fpOut = fopen(fileOut, "wb"); + FILE* fpOutCD = fopen(fileOutTmp, "wb"); + if (fpZip != NULL && fpOut != NULL) { + int entries = 0; + uLong totalBytes = 0; + char header[30]; + char filename[256]; + char extra[1024]; + int offset = 0; + int offsetCD = 0; + while ( fread(header, 1, 30, fpZip) == 30 ) { + int currentOffset = offset; + + /* File entry */ + if (READ_32(header) == 0x04034b50) { + unsigned int version = READ_16(header + 4); + unsigned int gpflag = READ_16(header + 6); + unsigned int method = READ_16(header + 8); + unsigned int filetime = READ_16(header + 10); + unsigned int filedate = READ_16(header + 12); + unsigned int crc = READ_32(header + 14); /* crc */ + unsigned int cpsize = READ_32(header + 18); /* compressed size */ + unsigned int uncpsize = READ_32(header + 22); /* uncompressed sz */ + unsigned int fnsize = READ_16(header + 26); /* file name length */ + unsigned int extsize = READ_16(header + 28); /* extra field length */ + filename[0] = extra[0] = '\0'; + + /* Header */ + if (fwrite(header, 1, 30, fpOut) == 30) { + offset += 30; + } else { + err = Z_ERRNO; + break; + } + + /* Filename */ + if (fnsize > 0) { + if (fread(filename, 1, fnsize, fpZip) == fnsize) { + if (fwrite(filename, 1, fnsize, fpOut) == fnsize) { + offset += fnsize; + } else { + err = Z_ERRNO; + break; + } + } else { + err = Z_ERRNO; + break; + } + } else { + err = Z_STREAM_ERROR; + break; + } + + /* Extra field */ + if (extsize > 0) { + if (fread(extra, 1, extsize, fpZip) == extsize) { + if (fwrite(extra, 1, extsize, fpOut) == extsize) { + offset += extsize; + } else { + err = Z_ERRNO; + break; + } + } else { + err = Z_ERRNO; + break; + } + } + + /* Data */ + { + int dataSize = cpsize; + if (dataSize == 0) { + dataSize = uncpsize; + } + if (dataSize > 0) { + char* data = malloc(dataSize); + if (data != NULL) { + if ((int)fread(data, 1, dataSize, fpZip) == dataSize) { + if ((int)fwrite(data, 1, dataSize, fpOut) == dataSize) { + offset += dataSize; + totalBytes += dataSize; + } else { + err = Z_ERRNO; + } + } else { + err = Z_ERRNO; + } + free(data); + if (err != Z_OK) { + break; + } + } else { + err = Z_MEM_ERROR; + break; + } + } + } + + /* Central directory entry */ + { + char header[46]; + char* comment = ""; + int comsize = (int) strlen(comment); + WRITE_32(header, 0x02014b50); + WRITE_16(header + 4, version); + WRITE_16(header + 6, version); + WRITE_16(header + 8, gpflag); + WRITE_16(header + 10, method); + WRITE_16(header + 12, filetime); + WRITE_16(header + 14, filedate); + WRITE_32(header + 16, crc); + WRITE_32(header + 20, cpsize); + WRITE_32(header + 24, uncpsize); + WRITE_16(header + 28, fnsize); + WRITE_16(header + 30, extsize); + WRITE_16(header + 32, comsize); + WRITE_16(header + 34, 0); /* disk # */ + WRITE_16(header + 36, 0); /* int attrb */ + WRITE_32(header + 38, 0); /* ext attrb */ + WRITE_32(header + 42, currentOffset); + /* Header */ + if (fwrite(header, 1, 46, fpOutCD) == 46) { + offsetCD += 46; + + /* Filename */ + if (fnsize > 0) { + if (fwrite(filename, 1, fnsize, fpOutCD) == fnsize) { + offsetCD += fnsize; + } else { + err = Z_ERRNO; + break; + } + } else { + err = Z_STREAM_ERROR; + break; + } + + /* Extra field */ + if (extsize > 0) { + if (fwrite(extra, 1, extsize, fpOutCD) == extsize) { + offsetCD += extsize; + } else { + err = Z_ERRNO; + break; + } + } + + /* Comment field */ + if (comsize > 0) { + if ((int)fwrite(comment, 1, comsize, fpOutCD) == comsize) { + offsetCD += comsize; + } else { + err = Z_ERRNO; + break; + } + } + + + } else { + err = Z_ERRNO; + break; + } + } + + /* Success */ + entries++; + + } else { + break; + } + } + + /* Final central directory */ + { + int entriesZip = entries; + char header[22]; + char* comment = ""; // "ZIP File recovered by zlib/minizip/mztools"; + int comsize = (int) strlen(comment); + if (entriesZip > 0xffff) { + entriesZip = 0xffff; + } + WRITE_32(header, 0x06054b50); + WRITE_16(header + 4, 0); /* disk # */ + WRITE_16(header + 6, 0); /* disk # */ + WRITE_16(header + 8, entriesZip); /* hack */ + WRITE_16(header + 10, entriesZip); /* hack */ + WRITE_32(header + 12, offsetCD); /* size of CD */ + WRITE_32(header + 16, offset); /* offset to CD */ + WRITE_16(header + 20, comsize); /* comment */ + + /* Header */ + if (fwrite(header, 1, 22, fpOutCD) == 22) { + + /* Comment field */ + if (comsize > 0) { + if ((int)fwrite(comment, 1, comsize, fpOutCD) != comsize) { + err = Z_ERRNO; + } + } + + } else { + err = Z_ERRNO; + } + } + + /* Final merge (file + central directory) */ + fclose(fpOutCD); + if (err == Z_OK) { + fpOutCD = fopen(fileOutTmp, "rb"); + if (fpOutCD != NULL) { + int nRead; + char buffer[8192]; + while ( (nRead = fread(buffer, 1, sizeof(buffer), fpOutCD)) > 0) { + if ((int)fwrite(buffer, 1, nRead, fpOut) != nRead) { + err = Z_ERRNO; + break; + } + } + fclose(fpOutCD); + } + } + + /* Close */ + fclose(fpZip); + fclose(fpOut); + + /* Wipe temporary file */ + (void)remove(fileOutTmp); + + /* Number of recovered entries */ + if (err == Z_OK) { + if (nRecovered != NULL) { + *nRecovered = entries; + } + if (bytesRecovered != NULL) { + *bytesRecovered = totalBytes; + } + } + } else { + err = Z_STREAM_ERROR; + } + return err; +} diff --git a/cpukit/zlib/contrib/minizip/mztools.h b/cpukit/zlib/contrib/minizip/mztools.h new file mode 100644 index 0000000000..88b34592bf --- /dev/null +++ b/cpukit/zlib/contrib/minizip/mztools.h @@ -0,0 +1,31 @@ +/* + Additional tools for Minizip + Code: Xavier Roche '2004 + License: Same as ZLIB (www.gzip.org) +*/ + +#ifndef _zip_tools_H +#define _zip_tools_H + +#ifdef __cplusplus +extern "C" { +#endif + +#ifndef _ZLIB_H +#include "zlib.h" +#endif + +#include "unzip.h" + +/* Repair a ZIP file (missing central directory) + file: file to recover + fileOut: output file after recovery + fileOutTmp: temporary file name used for recovery +*/ +extern int ZEXPORT unzRepair(const char* file, + const char* fileOut, + const char* fileOutTmp, + uLong* nRecovered, + uLong* bytesRecovered); + +#endif diff --git a/cpukit/zlib/contrib/minizip/unzip.c b/cpukit/zlib/contrib/minizip/unzip.c new file mode 100644 index 0000000000..e14de9e5ba --- /dev/null +++ b/cpukit/zlib/contrib/minizip/unzip.c @@ -0,0 +1,1595 @@ +/* unzip.c -- IO for uncompress .zip files using zlib + Version 1.01d, September 22th, 2004 + + Copyright (C) 1998-2004 Gilles Vollant + + Read unzip.h for more info +*/ + +/* Decryption code comes from crypt.c by Info-ZIP but has been greatly reduced in terms of +compatibility with older software. The following is from the original crypt.c. Code +woven in by Terry Thorsen 1/2003. +*/ +/* + Copyright (c) 1990-2000 Info-ZIP. All rights reserved. + + See the accompanying file LICENSE, version 2000-Apr-09 or later + (the contents of which are also included in zip.h) for terms of use. + If, for some reason, all these files are missing, the Info-ZIP license + also may be found at: ftp://ftp.info-zip.org/pub/infozip/license.html +*/ +/* + crypt.c (full version) by Info-ZIP. Last revised: [see crypt.h] + + The encryption/decryption parts of this source code (as opposed to the + non-echoing password parts) were originally written in Europe. The + whole source package can be freely distributed, including from the USA. + (Prior to January 2000, re-export from the US was a violation of US law.) + */ + +/* + This encryption code is a direct transcription of the algorithm from + Roger Schlafly, described by Phil Katz in the file appnote.txt. This + file (appnote.txt) is distributed with the PKZIP program (even in the + version without encryption capabilities). + */ + + +#include +#include +#include +#include "zlib.h" +#include "unzip.h" + +#ifdef STDC +# include +# include +# include +#endif +#ifdef NO_ERRNO_H + extern int errno; +#else +# include +#endif + + +#ifndef local +# define local static +#endif +/* compile with -Dlocal if your debugger can't find static symbols */ + + +#ifndef CASESENSITIVITYDEFAULT_NO +# if !defined(unix) && !defined(CASESENSITIVITYDEFAULT_YES) +# define CASESENSITIVITYDEFAULT_NO +# endif +#endif + + +#ifndef UNZ_BUFSIZE +#define UNZ_BUFSIZE (16384) +#endif + +#ifndef UNZ_MAXFILENAMEINZIP +#define UNZ_MAXFILENAMEINZIP (256) +#endif + +#ifndef ALLOC +# define ALLOC(size) (malloc(size)) +#endif +#ifndef TRYFREE +# define TRYFREE(p) {if (p) free(p);} +#endif + +#define SIZECENTRALDIRITEM (0x2e) +#define SIZEZIPLOCALHEADER (0x1e) + + + + +const char unz_copyright[] = + " unzip 1.01 Copyright 1998-2004 Gilles Vollant - http://www.winimage.com/zLibDll"; + +/* unz_file_info_interntal contain internal info about a file in zipfile*/ +typedef struct unz_file_info_internal_s +{ + uLong offset_curfile;/* relative offset of local header 4 bytes */ +} unz_file_info_internal; + + +/* file_in_zip_read_info_s contain internal information about a file in zipfile, + when reading and decompress it */ +typedef struct +{ + char *read_buffer; /* internal buffer for compressed data */ + z_stream stream; /* zLib stream structure for inflate */ + + uLong pos_in_zipfile; /* position in byte on the zipfile, for fseek*/ + uLong stream_initialised; /* flag set if stream structure is initialised*/ + + uLong offset_local_extrafield;/* offset of the local extra field */ + uInt size_local_extrafield;/* size of the local extra field */ + uLong pos_local_extrafield; /* position in the local extra field in read*/ + + uLong crc32; /* crc32 of all data uncompressed */ + uLong crc32_wait; /* crc32 we must obtain after decompress all */ + uLong rest_read_compressed; /* number of byte to be decompressed */ + uLong rest_read_uncompressed;/*number of byte to be obtained after decomp*/ + zlib_filefunc_def z_filefunc; + voidpf filestream; /* io structore of the zipfile */ + uLong compression_method; /* compression method (0==store) */ + uLong byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/ + int raw; +} file_in_zip_read_info_s; + + +/* unz_s contain internal information about the zipfile +*/ +typedef struct +{ + zlib_filefunc_def z_filefunc; + voidpf filestream; /* io structore of the zipfile */ + unz_global_info gi; /* public global information */ + uLong byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/ + uLong num_file; /* number of the current file in the zipfile*/ + uLong pos_in_central_dir; /* pos of the current file in the central dir*/ + uLong current_file_ok; /* flag about the usability of the current file*/ + uLong central_pos; /* position of the beginning of the central dir*/ + + uLong size_central_dir; /* size of the central directory */ + uLong offset_central_dir; /* offset of start of central directory with + respect to the starting disk number */ + + unz_file_info cur_file_info; /* public info about the current file in zip*/ + unz_file_info_internal cur_file_info_internal; /* private info about it*/ + file_in_zip_read_info_s* pfile_in_zip_read; /* structure about the current + file if we are decompressing it */ + int encrypted; +# ifndef NOUNCRYPT + unsigned long keys[3]; /* keys defining the pseudo-random sequence */ + const unsigned long* pcrc_32_tab; +# endif +} unz_s; + + +#ifndef NOUNCRYPT +#include "crypt.h" +#endif + +/* =========================================================================== + Read a byte from a gz_stream; update next_in and avail_in. Return EOF + for end of file. + IN assertion: the stream s has been sucessfully opened for reading. +*/ + + +local int unzlocal_getByte OF(( + const zlib_filefunc_def* pzlib_filefunc_def, + voidpf filestream, + int *pi)); + +local int unzlocal_getByte(pzlib_filefunc_def,filestream,pi) + const zlib_filefunc_def* pzlib_filefunc_def; + voidpf filestream; + int *pi; +{ + unsigned char c; + int err = (int)ZREAD(*pzlib_filefunc_def,filestream,&c,1); + if (err==1) + { + *pi = (int)c; + return UNZ_OK; + } + else + { + if (ZERROR(*pzlib_filefunc_def,filestream)) + return UNZ_ERRNO; + else + return UNZ_EOF; + } +} + + +/* =========================================================================== + Reads a long in LSB order from the given gz_stream. Sets +*/ +local int unzlocal_getShort OF(( + const zlib_filefunc_def* pzlib_filefunc_def, + voidpf filestream, + uLong *pX)); + +local int unzlocal_getShort (pzlib_filefunc_def,filestream,pX) + const zlib_filefunc_def* pzlib_filefunc_def; + voidpf filestream; + uLong *pX; +{ + uLong x ; + int i; + int err; + + err = unzlocal_getByte(pzlib_filefunc_def,filestream,&i); + x = (uLong)i; + + if (err==UNZ_OK) + err = unzlocal_getByte(pzlib_filefunc_def,filestream,&i); + x += ((uLong)i)<<8; + + if (err==UNZ_OK) + *pX = x; + else + *pX = 0; + return err; +} + +local int unzlocal_getLong OF(( + const zlib_filefunc_def* pzlib_filefunc_def, + voidpf filestream, + uLong *pX)); + +local int unzlocal_getLong (pzlib_filefunc_def,filestream,pX) + const zlib_filefunc_def* pzlib_filefunc_def; + voidpf filestream; + uLong *pX; +{ + uLong x ; + int i; + int err; + + err = unzlocal_getByte(pzlib_filefunc_def,filestream,&i); + x = (uLong)i; + + if (err==UNZ_OK) + err = unzlocal_getByte(pzlib_filefunc_def,filestream,&i); + x += ((uLong)i)<<8; + + if (err==UNZ_OK) + err = unzlocal_getByte(pzlib_filefunc_def,filestream,&i); + x += ((uLong)i)<<16; + + if (err==UNZ_OK) + err = unzlocal_getByte(pzlib_filefunc_def,filestream,&i); + x += ((uLong)i)<<24; + + if (err==UNZ_OK) + *pX = x; + else + *pX = 0; + return err; +} + + +/* My own strcmpi / strcasecmp */ +local int strcmpcasenosensitive_internal (fileName1,fileName2) + const char* fileName1; + const char* fileName2; +{ + for (;;) + { + char c1=*(fileName1++); + char c2=*(fileName2++); + if ((c1>='a') && (c1<='z')) + c1 -= 0x20; + if ((c2>='a') && (c2<='z')) + c2 -= 0x20; + if (c1=='\0') + return ((c2=='\0') ? 0 : -1); + if (c2=='\0') + return 1; + if (c1c2) + return 1; + } +} + + +#ifdef CASESENSITIVITYDEFAULT_NO +#define CASESENSITIVITYDEFAULTVALUE 2 +#else +#define CASESENSITIVITYDEFAULTVALUE 1 +#endif + +#ifndef STRCMPCASENOSENTIVEFUNCTION +#define STRCMPCASENOSENTIVEFUNCTION strcmpcasenosensitive_internal +#endif + +/* + Compare two filename (fileName1,fileName2). + If iCaseSenisivity = 1, comparision is case sensitivity (like strcmp) + If iCaseSenisivity = 2, comparision is not case sensitivity (like strcmpi + or strcasecmp) + If iCaseSenisivity = 0, case sensitivity is defaut of your operating system + (like 1 on Unix, 2 on Windows) + +*/ +extern int ZEXPORT unzStringFileNameCompare (fileName1,fileName2,iCaseSensitivity) + const char* fileName1; + const char* fileName2; + int iCaseSensitivity; +{ + if (iCaseSensitivity==0) + iCaseSensitivity=CASESENSITIVITYDEFAULTVALUE; + + if (iCaseSensitivity==1) + return strcmp(fileName1,fileName2); + + return STRCMPCASENOSENTIVEFUNCTION(fileName1,fileName2); +} + +#ifndef BUFREADCOMMENT +#define BUFREADCOMMENT (0x400) +#endif + +/* + Locate the Central directory of a zipfile (at the end, just before + the global comment) +*/ +local uLong unzlocal_SearchCentralDir OF(( + const zlib_filefunc_def* pzlib_filefunc_def, + voidpf filestream)); + +local uLong unzlocal_SearchCentralDir(pzlib_filefunc_def,filestream) + const zlib_filefunc_def* pzlib_filefunc_def; + voidpf filestream; +{ + unsigned char* buf; + uLong uSizeFile; + uLong uBackRead; + uLong uMaxBack=0xffff; /* maximum size of global comment */ + uLong uPosFound=0; + + if (ZSEEK(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0) + return 0; + + + uSizeFile = ZTELL(*pzlib_filefunc_def,filestream); + + if (uMaxBack>uSizeFile) + uMaxBack = uSizeFile; + + buf = (unsigned char*)ALLOC(BUFREADCOMMENT+4); + if (buf==NULL) + return 0; + + uBackRead = 4; + while (uBackReaduMaxBack) + uBackRead = uMaxBack; + else + uBackRead+=BUFREADCOMMENT; + uReadPos = uSizeFile-uBackRead ; + + uReadSize = ((BUFREADCOMMENT+4) < (uSizeFile-uReadPos)) ? + (BUFREADCOMMENT+4) : (uSizeFile-uReadPos); + if (ZSEEK(*pzlib_filefunc_def,filestream,uReadPos,ZLIB_FILEFUNC_SEEK_SET)!=0) + break; + + if (ZREAD(*pzlib_filefunc_def,filestream,buf,uReadSize)!=uReadSize) + break; + + for (i=(int)uReadSize-3; (i--)>0;) + if (((*(buf+i))==0x50) && ((*(buf+i+1))==0x4b) && + ((*(buf+i+2))==0x05) && ((*(buf+i+3))==0x06)) + { + uPosFound = uReadPos+i; + break; + } + + if (uPosFound!=0) + break; + } + TRYFREE(buf); + return uPosFound; +} + +/* + Open a Zip file. path contain the full pathname (by example, + on a Windows NT computer "c:\\test\\zlib114.zip" or on an Unix computer + "zlib/zlib114.zip". + If the zipfile cannot be opened (file doesn't exist or in not valid), the + return value is NULL. + Else, the return value is a unzFile Handle, usable with other function + of this unzip package. +*/ +extern unzFile ZEXPORT unzOpen2 (path, pzlib_filefunc_def) + const char *path; + zlib_filefunc_def* pzlib_filefunc_def; +{ + unz_s us; + unz_s *s; + uLong central_pos,uL; + + uLong number_disk; /* number of the current dist, used for + spaning ZIP, unsupported, always 0*/ + uLong number_disk_with_CD; /* number the the disk with central dir, used + for spaning ZIP, unsupported, always 0*/ + uLong number_entry_CD; /* total number of entries in + the central dir + (same than number_entry on nospan) */ + + int err=UNZ_OK; + + if (unz_copyright[0]!=' ') + return NULL; + + if (pzlib_filefunc_def==NULL) + fill_fopen_filefunc(&us.z_filefunc); + else + us.z_filefunc = *pzlib_filefunc_def; + + us.filestream= (*(us.z_filefunc.zopen_file))(us.z_filefunc.opaque, + path, + ZLIB_FILEFUNC_MODE_READ | + ZLIB_FILEFUNC_MODE_EXISTING); + if (us.filestream==NULL) + return NULL; + + central_pos = unzlocal_SearchCentralDir(&us.z_filefunc,us.filestream); + if (central_pos==0) + err=UNZ_ERRNO; + + if (ZSEEK(us.z_filefunc, us.filestream, + central_pos,ZLIB_FILEFUNC_SEEK_SET)!=0) + err=UNZ_ERRNO; + + /* the signature, already checked */ + if (unzlocal_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK) + err=UNZ_ERRNO; + + /* number of this disk */ + if (unzlocal_getShort(&us.z_filefunc, us.filestream,&number_disk)!=UNZ_OK) + err=UNZ_ERRNO; + + /* number of the disk with the start of the central directory */ + if (unzlocal_getShort(&us.z_filefunc, us.filestream,&number_disk_with_CD)!=UNZ_OK) + err=UNZ_ERRNO; + + /* total number of entries in the central dir on this disk */ + if (unzlocal_getShort(&us.z_filefunc, us.filestream,&us.gi.number_entry)!=UNZ_OK) + err=UNZ_ERRNO; + + /* total number of entries in the central dir */ + if (unzlocal_getShort(&us.z_filefunc, us.filestream,&number_entry_CD)!=UNZ_OK) + err=UNZ_ERRNO; + + if ((number_entry_CD!=us.gi.number_entry) || + (number_disk_with_CD!=0) || + (number_disk!=0)) + err=UNZ_BADZIPFILE; + + /* size of the central directory */ + if (unzlocal_getLong(&us.z_filefunc, us.filestream,&us.size_central_dir)!=UNZ_OK) + err=UNZ_ERRNO; + + /* offset of start of central directory with respect to the + starting disk number */ + if (unzlocal_getLong(&us.z_filefunc, us.filestream,&us.offset_central_dir)!=UNZ_OK) + err=UNZ_ERRNO; + + /* zipfile comment length */ + if (unzlocal_getShort(&us.z_filefunc, us.filestream,&us.gi.size_comment)!=UNZ_OK) + err=UNZ_ERRNO; + + if ((central_pospfile_in_zip_read!=NULL) + unzCloseCurrentFile(file); + + ZCLOSE(s->z_filefunc, s->filestream); + TRYFREE(s); + return UNZ_OK; +} + + +/* + Write info about the ZipFile in the *pglobal_info structure. + No preparation of the structure is needed + return UNZ_OK if there is no problem. */ +extern int ZEXPORT unzGetGlobalInfo (file,pglobal_info) + unzFile file; + unz_global_info *pglobal_info; +{ + unz_s* s; + if (file==NULL) + return UNZ_PARAMERROR; + s=(unz_s*)file; + *pglobal_info=s->gi; + return UNZ_OK; +} + + +/* + Translate date/time from Dos format to tm_unz (readable more easilty) +*/ +local void unzlocal_DosDateToTmuDate (ulDosDate, ptm) + uLong ulDosDate; + tm_unz* ptm; +{ + uLong uDate; + uDate = (uLong)(ulDosDate>>16); + ptm->tm_mday = (uInt)(uDate&0x1f) ; + ptm->tm_mon = (uInt)((((uDate)&0x1E0)/0x20)-1) ; + ptm->tm_year = (uInt)(((uDate&0x0FE00)/0x0200)+1980) ; + + ptm->tm_hour = (uInt) ((ulDosDate &0xF800)/0x800); + ptm->tm_min = (uInt) ((ulDosDate&0x7E0)/0x20) ; + ptm->tm_sec = (uInt) (2*(ulDosDate&0x1f)) ; +} + +/* + Get Info about the current file in the zipfile, with internal only info +*/ +local int unzlocal_GetCurrentFileInfoInternal OF((unzFile file, + unz_file_info *pfile_info, + unz_file_info_internal + *pfile_info_internal, + char *szFileName, + uLong fileNameBufferSize, + void *extraField, + uLong extraFieldBufferSize, + char *szComment, + uLong commentBufferSize)); + +local int unzlocal_GetCurrentFileInfoInternal (file, + pfile_info, + pfile_info_internal, + szFileName, fileNameBufferSize, + extraField, extraFieldBufferSize, + szComment, commentBufferSize) + unzFile file; + unz_file_info *pfile_info; + unz_file_info_internal *pfile_info_internal; + char *szFileName; + uLong fileNameBufferSize; + void *extraField; + uLong extraFieldBufferSize; + char *szComment; + uLong commentBufferSize; +{ + unz_s* s; + unz_file_info file_info; + unz_file_info_internal file_info_internal; + int err=UNZ_OK; + uLong uMagic; + long lSeek=0; + + if (file==NULL) + return UNZ_PARAMERROR; + s=(unz_s*)file; + if (ZSEEK(s->z_filefunc, s->filestream, + s->pos_in_central_dir+s->byte_before_the_zipfile, + ZLIB_FILEFUNC_SEEK_SET)!=0) + err=UNZ_ERRNO; + + + /* we check the magic */ + if (err==UNZ_OK) + if (unzlocal_getLong(&s->z_filefunc, s->filestream,&uMagic) != UNZ_OK) + err=UNZ_ERRNO; + else if (uMagic!=0x02014b50) + err=UNZ_BADZIPFILE; + + if (unzlocal_getShort(&s->z_filefunc, s->filestream,&file_info.version) != UNZ_OK) + err=UNZ_ERRNO; + + if (unzlocal_getShort(&s->z_filefunc, s->filestream,&file_info.version_needed) != UNZ_OK) + err=UNZ_ERRNO; + + if (unzlocal_getShort(&s->z_filefunc, s->filestream,&file_info.flag) != UNZ_OK) + err=UNZ_ERRNO; + + if (unzlocal_getShort(&s->z_filefunc, s->filestream,&file_info.compression_method) != UNZ_OK) + err=UNZ_ERRNO; + + if (unzlocal_getLong(&s->z_filefunc, s->filestream,&file_info.dosDate) != UNZ_OK) + err=UNZ_ERRNO; + + unzlocal_DosDateToTmuDate(file_info.dosDate,&file_info.tmu_date); + + if (unzlocal_getLong(&s->z_filefunc, s->filestream,&file_info.crc) != UNZ_OK) + err=UNZ_ERRNO; + + if (unzlocal_getLong(&s->z_filefunc, s->filestream,&file_info.compressed_size) != UNZ_OK) + err=UNZ_ERRNO; + + if (unzlocal_getLong(&s->z_filefunc, s->filestream,&file_info.uncompressed_size) != UNZ_OK) + err=UNZ_ERRNO; + + if (unzlocal_getShort(&s->z_filefunc, s->filestream,&file_info.size_filename) != UNZ_OK) + err=UNZ_ERRNO; + + if (unzlocal_getShort(&s->z_filefunc, s->filestream,&file_info.size_file_extra) != UNZ_OK) + err=UNZ_ERRNO; + + if (unzlocal_getShort(&s->z_filefunc, s->filestream,&file_info.size_file_comment) != UNZ_OK) + err=UNZ_ERRNO; + + if (unzlocal_getShort(&s->z_filefunc, s->filestream,&file_info.disk_num_start) != UNZ_OK) + err=UNZ_ERRNO; + + if (unzlocal_getShort(&s->z_filefunc, s->filestream,&file_info.internal_fa) != UNZ_OK) + err=UNZ_ERRNO; + + if (unzlocal_getLong(&s->z_filefunc, s->filestream,&file_info.external_fa) != UNZ_OK) + err=UNZ_ERRNO; + + if (unzlocal_getLong(&s->z_filefunc, s->filestream,&file_info_internal.offset_curfile) != UNZ_OK) + err=UNZ_ERRNO; + + lSeek+=file_info.size_filename; + if ((err==UNZ_OK) && (szFileName!=NULL)) + { + uLong uSizeRead ; + if (file_info.size_filename0) && (fileNameBufferSize>0)) + if (ZREAD(s->z_filefunc, s->filestream,szFileName,uSizeRead)!=uSizeRead) + err=UNZ_ERRNO; + lSeek -= uSizeRead; + } + + + if ((err==UNZ_OK) && (extraField!=NULL)) + { + uLong uSizeRead ; + if (file_info.size_file_extraz_filefunc, s->filestream,lSeek,ZLIB_FILEFUNC_SEEK_CUR)==0) + lSeek=0; + else + err=UNZ_ERRNO; + if ((file_info.size_file_extra>0) && (extraFieldBufferSize>0)) + if (ZREAD(s->z_filefunc, s->filestream,extraField,uSizeRead)!=uSizeRead) + err=UNZ_ERRNO; + lSeek += file_info.size_file_extra - uSizeRead; + } + else + lSeek+=file_info.size_file_extra; + + + if ((err==UNZ_OK) && (szComment!=NULL)) + { + uLong uSizeRead ; + if (file_info.size_file_commentz_filefunc, s->filestream,lSeek,ZLIB_FILEFUNC_SEEK_CUR)==0) + lSeek=0; + else + err=UNZ_ERRNO; + if ((file_info.size_file_comment>0) && (commentBufferSize>0)) + if (ZREAD(s->z_filefunc, s->filestream,szComment,uSizeRead)!=uSizeRead) + err=UNZ_ERRNO; + lSeek+=file_info.size_file_comment - uSizeRead; + } + else + lSeek+=file_info.size_file_comment; + + if ((err==UNZ_OK) && (pfile_info!=NULL)) + *pfile_info=file_info; + + if ((err==UNZ_OK) && (pfile_info_internal!=NULL)) + *pfile_info_internal=file_info_internal; + + return err; +} + + + +/* + Write info about the ZipFile in the *pglobal_info structure. + No preparation of the structure is needed + return UNZ_OK if there is no problem. +*/ +extern int ZEXPORT unzGetCurrentFileInfo (file, + pfile_info, + szFileName, fileNameBufferSize, + extraField, extraFieldBufferSize, + szComment, commentBufferSize) + unzFile file; + unz_file_info *pfile_info; + char *szFileName; + uLong fileNameBufferSize; + void *extraField; + uLong extraFieldBufferSize; + char *szComment; + uLong commentBufferSize; +{ + return unzlocal_GetCurrentFileInfoInternal(file,pfile_info,NULL, + szFileName,fileNameBufferSize, + extraField,extraFieldBufferSize, + szComment,commentBufferSize); +} + +/* + Set the current file of the zipfile to the first file. + return UNZ_OK if there is no problem +*/ +extern int ZEXPORT unzGoToFirstFile (file) + unzFile file; +{ + int err=UNZ_OK; + unz_s* s; + if (file==NULL) + return UNZ_PARAMERROR; + s=(unz_s*)file; + s->pos_in_central_dir=s->offset_central_dir; + s->num_file=0; + err=unzlocal_GetCurrentFileInfoInternal(file,&s->cur_file_info, + &s->cur_file_info_internal, + NULL,0,NULL,0,NULL,0); + s->current_file_ok = (err == UNZ_OK); + return err; +} + +/* + Set the current file of the zipfile to the next file. + return UNZ_OK if there is no problem + return UNZ_END_OF_LIST_OF_FILE if the actual file was the latest. +*/ +extern int ZEXPORT unzGoToNextFile (file) + unzFile file; +{ + unz_s* s; + int err; + + if (file==NULL) + return UNZ_PARAMERROR; + s=(unz_s*)file; + if (!s->current_file_ok) + return UNZ_END_OF_LIST_OF_FILE; + if (s->gi.number_entry != 0xffff) /* 2^16 files overflow hack */ + if (s->num_file+1==s->gi.number_entry) + return UNZ_END_OF_LIST_OF_FILE; + + s->pos_in_central_dir += SIZECENTRALDIRITEM + s->cur_file_info.size_filename + + s->cur_file_info.size_file_extra + s->cur_file_info.size_file_comment ; + s->num_file++; + err = unzlocal_GetCurrentFileInfoInternal(file,&s->cur_file_info, + &s->cur_file_info_internal, + NULL,0,NULL,0,NULL,0); + s->current_file_ok = (err == UNZ_OK); + return err; +} + + +/* + Try locate the file szFileName in the zipfile. + For the iCaseSensitivity signification, see unzipStringFileNameCompare + + return value : + UNZ_OK if the file is found. It becomes the current file. + UNZ_END_OF_LIST_OF_FILE if the file is not found +*/ +extern int ZEXPORT unzLocateFile (file, szFileName, iCaseSensitivity) + unzFile file; + const char *szFileName; + int iCaseSensitivity; +{ + unz_s* s; + int err; + + /* We remember the 'current' position in the file so that we can jump + * back there if we fail. + */ + unz_file_info cur_file_infoSaved; + unz_file_info_internal cur_file_info_internalSaved; + uLong num_fileSaved; + uLong pos_in_central_dirSaved; + + + if (file==NULL) + return UNZ_PARAMERROR; + + if (strlen(szFileName)>=UNZ_MAXFILENAMEINZIP) + return UNZ_PARAMERROR; + + s=(unz_s*)file; + if (!s->current_file_ok) + return UNZ_END_OF_LIST_OF_FILE; + + /* Save the current state */ + num_fileSaved = s->num_file; + pos_in_central_dirSaved = s->pos_in_central_dir; + cur_file_infoSaved = s->cur_file_info; + cur_file_info_internalSaved = s->cur_file_info_internal; + + err = unzGoToFirstFile(file); + + while (err == UNZ_OK) + { + char szCurrentFileName[UNZ_MAXFILENAMEINZIP+1]; + err = unzGetCurrentFileInfo(file,NULL, + szCurrentFileName,sizeof(szCurrentFileName)-1, + NULL,0,NULL,0); + if (err == UNZ_OK) + { + if (unzStringFileNameCompare(szCurrentFileName, + szFileName,iCaseSensitivity)==0) + return UNZ_OK; + err = unzGoToNextFile(file); + } + } + + /* We failed, so restore the state of the 'current file' to where we + * were. + */ + s->num_file = num_fileSaved ; + s->pos_in_central_dir = pos_in_central_dirSaved ; + s->cur_file_info = cur_file_infoSaved; + s->cur_file_info_internal = cur_file_info_internalSaved; + return err; +} + + +/* +/////////////////////////////////////////// +// Contributed by Ryan Haksi (mailto://cryogen@infoserve.net) +// I need random access +// +// Further optimization could be realized by adding an ability +// to cache the directory in memory. The goal being a single +// comprehensive file read to put the file I need in a memory. +*/ + +/* +typedef struct unz_file_pos_s +{ + uLong pos_in_zip_directory; // offset in file + uLong num_of_file; // # of file +} unz_file_pos; +*/ + +extern int ZEXPORT unzGetFilePos(file, file_pos) + unzFile file; + unz_file_pos* file_pos; +{ + unz_s* s; + + if (file==NULL || file_pos==NULL) + return UNZ_PARAMERROR; + s=(unz_s*)file; + if (!s->current_file_ok) + return UNZ_END_OF_LIST_OF_FILE; + + file_pos->pos_in_zip_directory = s->pos_in_central_dir; + file_pos->num_of_file = s->num_file; + + return UNZ_OK; +} + +extern int ZEXPORT unzGoToFilePos(file, file_pos) + unzFile file; + unz_file_pos* file_pos; +{ + unz_s* s; + int err; + + if (file==NULL || file_pos==NULL) + return UNZ_PARAMERROR; + s=(unz_s*)file; + + /* jump to the right spot */ + s->pos_in_central_dir = file_pos->pos_in_zip_directory; + s->num_file = file_pos->num_of_file; + + /* set the current file */ + err = unzlocal_GetCurrentFileInfoInternal(file,&s->cur_file_info, + &s->cur_file_info_internal, + NULL,0,NULL,0,NULL,0); + /* return results */ + s->current_file_ok = (err == UNZ_OK); + return err; +} + +/* +// Unzip Helper Functions - should be here? +/////////////////////////////////////////// +*/ + +/* + Read the local header of the current zipfile + Check the coherency of the local header and info in the end of central + directory about this file + store in *piSizeVar the size of extra info in local header + (filename and size of extra field data) +*/ +local int unzlocal_CheckCurrentFileCoherencyHeader (s,piSizeVar, + poffset_local_extrafield, + psize_local_extrafield) + unz_s* s; + uInt* piSizeVar; + uLong *poffset_local_extrafield; + uInt *psize_local_extrafield; +{ + uLong uMagic,uData,uFlags; + uLong size_filename; + uLong size_extra_field; + int err=UNZ_OK; + + *piSizeVar = 0; + *poffset_local_extrafield = 0; + *psize_local_extrafield = 0; + + if (ZSEEK(s->z_filefunc, s->filestream,s->cur_file_info_internal.offset_curfile + + s->byte_before_the_zipfile,ZLIB_FILEFUNC_SEEK_SET)!=0) + return UNZ_ERRNO; + + + if (err==UNZ_OK) + if (unzlocal_getLong(&s->z_filefunc, s->filestream,&uMagic) != UNZ_OK) + err=UNZ_ERRNO; + else if (uMagic!=0x04034b50) + err=UNZ_BADZIPFILE; + + if (unzlocal_getShort(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) + err=UNZ_ERRNO; +/* + else if ((err==UNZ_OK) && (uData!=s->cur_file_info.wVersion)) + err=UNZ_BADZIPFILE; +*/ + if (unzlocal_getShort(&s->z_filefunc, s->filestream,&uFlags) != UNZ_OK) + err=UNZ_ERRNO; + + if (unzlocal_getShort(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) + err=UNZ_ERRNO; + else if ((err==UNZ_OK) && (uData!=s->cur_file_info.compression_method)) + err=UNZ_BADZIPFILE; + + if ((err==UNZ_OK) && (s->cur_file_info.compression_method!=0) && + (s->cur_file_info.compression_method!=Z_DEFLATED)) + err=UNZ_BADZIPFILE; + + if (unzlocal_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* date/time */ + err=UNZ_ERRNO; + + if (unzlocal_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* crc */ + err=UNZ_ERRNO; + else if ((err==UNZ_OK) && (uData!=s->cur_file_info.crc) && + ((uFlags & 8)==0)) + err=UNZ_BADZIPFILE; + + if (unzlocal_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* size compr */ + err=UNZ_ERRNO; + else if ((err==UNZ_OK) && (uData!=s->cur_file_info.compressed_size) && + ((uFlags & 8)==0)) + err=UNZ_BADZIPFILE; + + if (unzlocal_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* size uncompr */ + err=UNZ_ERRNO; + else if ((err==UNZ_OK) && (uData!=s->cur_file_info.uncompressed_size) && + ((uFlags & 8)==0)) + err=UNZ_BADZIPFILE; + + + if (unzlocal_getShort(&s->z_filefunc, s->filestream,&size_filename) != UNZ_OK) + err=UNZ_ERRNO; + else if ((err==UNZ_OK) && (size_filename!=s->cur_file_info.size_filename)) + err=UNZ_BADZIPFILE; + + *piSizeVar += (uInt)size_filename; + + if (unzlocal_getShort(&s->z_filefunc, s->filestream,&size_extra_field) != UNZ_OK) + err=UNZ_ERRNO; + *poffset_local_extrafield= s->cur_file_info_internal.offset_curfile + + SIZEZIPLOCALHEADER + size_filename; + *psize_local_extrafield = (uInt)size_extra_field; + + *piSizeVar += (uInt)size_extra_field; + + return err; +} + +/* + Open for reading data the current file in the zipfile. + If there is no error and the file is opened, the return value is UNZ_OK. +*/ +extern int ZEXPORT unzOpenCurrentFile3 (file, method, level, raw, password) + unzFile file; + int* method; + int* level; + int raw; + const char* password; +{ + int err=UNZ_OK; + uInt iSizeVar; + unz_s* s; + file_in_zip_read_info_s* pfile_in_zip_read_info; + uLong offset_local_extrafield; /* offset of the local extra field */ + uInt size_local_extrafield; /* size of the local extra field */ +# ifndef NOUNCRYPT + char source[12]; +# else + if (password != NULL) + return UNZ_PARAMERROR; +# endif + + if (file==NULL) + return UNZ_PARAMERROR; + s=(unz_s*)file; + if (!s->current_file_ok) + return UNZ_PARAMERROR; + + if (s->pfile_in_zip_read != NULL) + unzCloseCurrentFile(file); + + if (unzlocal_CheckCurrentFileCoherencyHeader(s,&iSizeVar, + &offset_local_extrafield,&size_local_extrafield)!=UNZ_OK) + return UNZ_BADZIPFILE; + + pfile_in_zip_read_info = (file_in_zip_read_info_s*) + ALLOC(sizeof(file_in_zip_read_info_s)); + if (pfile_in_zip_read_info==NULL) + return UNZ_INTERNALERROR; + + pfile_in_zip_read_info->read_buffer=(char*)ALLOC(UNZ_BUFSIZE); + pfile_in_zip_read_info->offset_local_extrafield = offset_local_extrafield; + pfile_in_zip_read_info->size_local_extrafield = size_local_extrafield; + pfile_in_zip_read_info->pos_local_extrafield=0; + pfile_in_zip_read_info->raw=raw; + + if (pfile_in_zip_read_info->read_buffer==NULL) + { + TRYFREE(pfile_in_zip_read_info); + return UNZ_INTERNALERROR; + } + + pfile_in_zip_read_info->stream_initialised=0; + + if (method!=NULL) + *method = (int)s->cur_file_info.compression_method; + + if (level!=NULL) + { + *level = 6; + switch (s->cur_file_info.flag & 0x06) + { + case 6 : *level = 1; break; + case 4 : *level = 2; break; + case 2 : *level = 9; break; + } + } + + if ((s->cur_file_info.compression_method!=0) && + (s->cur_file_info.compression_method!=Z_DEFLATED)) + err=UNZ_BADZIPFILE; + + pfile_in_zip_read_info->crc32_wait=s->cur_file_info.crc; + pfile_in_zip_read_info->crc32=0; + pfile_in_zip_read_info->compression_method = + s->cur_file_info.compression_method; + pfile_in_zip_read_info->filestream=s->filestream; + pfile_in_zip_read_info->z_filefunc=s->z_filefunc; + pfile_in_zip_read_info->byte_before_the_zipfile=s->byte_before_the_zipfile; + + pfile_in_zip_read_info->stream.total_out = 0; + + if ((s->cur_file_info.compression_method==Z_DEFLATED) && + (!raw)) + { + pfile_in_zip_read_info->stream.zalloc = (alloc_func)0; + pfile_in_zip_read_info->stream.zfree = (free_func)0; + pfile_in_zip_read_info->stream.opaque = (voidpf)0; + pfile_in_zip_read_info->stream.next_in = (voidpf)0; + pfile_in_zip_read_info->stream.avail_in = 0; + + err=inflateInit2(&pfile_in_zip_read_info->stream, -MAX_WBITS); + if (err == Z_OK) + pfile_in_zip_read_info->stream_initialised=1; + else + return err; + /* windowBits is passed < 0 to tell that there is no zlib header. + * Note that in this case inflate *requires* an extra "dummy" byte + * after the compressed stream in order to complete decompression and + * return Z_STREAM_END. + * In unzip, i don't wait absolutely Z_STREAM_END because I known the + * size of both compressed and uncompressed data + */ + } + pfile_in_zip_read_info->rest_read_compressed = + s->cur_file_info.compressed_size ; + pfile_in_zip_read_info->rest_read_uncompressed = + s->cur_file_info.uncompressed_size ; + + + pfile_in_zip_read_info->pos_in_zipfile = + s->cur_file_info_internal.offset_curfile + SIZEZIPLOCALHEADER + + iSizeVar; + + pfile_in_zip_read_info->stream.avail_in = (uInt)0; + + s->pfile_in_zip_read = pfile_in_zip_read_info; + +# ifndef NOUNCRYPT + if (password != NULL) + { + int i; + s->pcrc_32_tab = get_crc_table(); + init_keys(password,s->keys,s->pcrc_32_tab); + if (ZSEEK(s->z_filefunc, s->filestream, + s->pfile_in_zip_read->pos_in_zipfile + + s->pfile_in_zip_read->byte_before_the_zipfile, + SEEK_SET)!=0) + return UNZ_INTERNALERROR; + if(ZREAD(s->z_filefunc, s->filestream,source, 12)<12) + return UNZ_INTERNALERROR; + + for (i = 0; i<12; i++) + zdecode(s->keys,s->pcrc_32_tab,source[i]); + + s->pfile_in_zip_read->pos_in_zipfile+=12; + s->encrypted=1; + } +# endif + + + return UNZ_OK; +} + +extern int ZEXPORT unzOpenCurrentFile (file) + unzFile file; +{ + return unzOpenCurrentFile3(file, NULL, NULL, 0, NULL); +} + +extern int ZEXPORT unzOpenCurrentFilePassword (file, password) + unzFile file; + const char* password; +{ + return unzOpenCurrentFile3(file, NULL, NULL, 0, password); +} + +extern int ZEXPORT unzOpenCurrentFile2 (file,method,level,raw) + unzFile file; + int* method; + int* level; + int raw; +{ + return unzOpenCurrentFile3(file, method, level, raw, NULL); +} + +/* + Read bytes from the current file. + buf contain buffer where data must be copied + len the size of buf. + + return the number of byte copied if somes bytes are copied + return 0 if the end of file was reached + return <0 with error code if there is an error + (UNZ_ERRNO for IO error, or zLib error for uncompress error) +*/ +extern int ZEXPORT unzReadCurrentFile (file, buf, len) + unzFile file; + voidp buf; + unsigned len; +{ + int err=UNZ_OK; + uInt iRead = 0; + unz_s* s; + file_in_zip_read_info_s* pfile_in_zip_read_info; + if (file==NULL) + return UNZ_PARAMERROR; + s=(unz_s*)file; + pfile_in_zip_read_info=s->pfile_in_zip_read; + + if (pfile_in_zip_read_info==NULL) + return UNZ_PARAMERROR; + + + if ((pfile_in_zip_read_info->read_buffer == NULL)) + return UNZ_END_OF_LIST_OF_FILE; + if (len==0) + return 0; + + pfile_in_zip_read_info->stream.next_out = (Bytef*)buf; + + pfile_in_zip_read_info->stream.avail_out = (uInt)len; + + if ((len>pfile_in_zip_read_info->rest_read_uncompressed) && + (!(pfile_in_zip_read_info->raw))) + pfile_in_zip_read_info->stream.avail_out = + (uInt)pfile_in_zip_read_info->rest_read_uncompressed; + + if ((len>pfile_in_zip_read_info->rest_read_compressed+ + pfile_in_zip_read_info->stream.avail_in) && + (pfile_in_zip_read_info->raw)) + pfile_in_zip_read_info->stream.avail_out = + (uInt)pfile_in_zip_read_info->rest_read_compressed+ + pfile_in_zip_read_info->stream.avail_in; + + while (pfile_in_zip_read_info->stream.avail_out>0) + { + if ((pfile_in_zip_read_info->stream.avail_in==0) && + (pfile_in_zip_read_info->rest_read_compressed>0)) + { + uInt uReadThis = UNZ_BUFSIZE; + if (pfile_in_zip_read_info->rest_read_compressedrest_read_compressed; + if (uReadThis == 0) + return UNZ_EOF; + if (ZSEEK(pfile_in_zip_read_info->z_filefunc, + pfile_in_zip_read_info->filestream, + pfile_in_zip_read_info->pos_in_zipfile + + pfile_in_zip_read_info->byte_before_the_zipfile, + ZLIB_FILEFUNC_SEEK_SET)!=0) + return UNZ_ERRNO; + if (ZREAD(pfile_in_zip_read_info->z_filefunc, + pfile_in_zip_read_info->filestream, + pfile_in_zip_read_info->read_buffer, + uReadThis)!=uReadThis) + return UNZ_ERRNO; + + +# ifndef NOUNCRYPT + if(s->encrypted) + { + uInt i; + for(i=0;iread_buffer[i] = + zdecode(s->keys,s->pcrc_32_tab, + pfile_in_zip_read_info->read_buffer[i]); + } +# endif + + + pfile_in_zip_read_info->pos_in_zipfile += uReadThis; + + pfile_in_zip_read_info->rest_read_compressed-=uReadThis; + + pfile_in_zip_read_info->stream.next_in = + (Bytef*)pfile_in_zip_read_info->read_buffer; + pfile_in_zip_read_info->stream.avail_in = (uInt)uReadThis; + } + + if ((pfile_in_zip_read_info->compression_method==0) || (pfile_in_zip_read_info->raw)) + { + uInt uDoCopy,i ; + + if ((pfile_in_zip_read_info->stream.avail_in == 0) && + (pfile_in_zip_read_info->rest_read_compressed == 0)) + return (iRead==0) ? UNZ_EOF : iRead; + + if (pfile_in_zip_read_info->stream.avail_out < + pfile_in_zip_read_info->stream.avail_in) + uDoCopy = pfile_in_zip_read_info->stream.avail_out ; + else + uDoCopy = pfile_in_zip_read_info->stream.avail_in ; + + for (i=0;istream.next_out+i) = + *(pfile_in_zip_read_info->stream.next_in+i); + + pfile_in_zip_read_info->crc32 = crc32(pfile_in_zip_read_info->crc32, + pfile_in_zip_read_info->stream.next_out, + uDoCopy); + pfile_in_zip_read_info->rest_read_uncompressed-=uDoCopy; + pfile_in_zip_read_info->stream.avail_in -= uDoCopy; + pfile_in_zip_read_info->stream.avail_out -= uDoCopy; + pfile_in_zip_read_info->stream.next_out += uDoCopy; + pfile_in_zip_read_info->stream.next_in += uDoCopy; + pfile_in_zip_read_info->stream.total_out += uDoCopy; + iRead += uDoCopy; + } + else + { + uLong uTotalOutBefore,uTotalOutAfter; + const Bytef *bufBefore; + uLong uOutThis; + int flush=Z_SYNC_FLUSH; + + uTotalOutBefore = pfile_in_zip_read_info->stream.total_out; + bufBefore = pfile_in_zip_read_info->stream.next_out; + + /* + if ((pfile_in_zip_read_info->rest_read_uncompressed == + pfile_in_zip_read_info->stream.avail_out) && + (pfile_in_zip_read_info->rest_read_compressed == 0)) + flush = Z_FINISH; + */ + err=inflate(&pfile_in_zip_read_info->stream,flush); + + if ((err>=0) && (pfile_in_zip_read_info->stream.msg!=NULL)) + err = Z_DATA_ERROR; + + uTotalOutAfter = pfile_in_zip_read_info->stream.total_out; + uOutThis = uTotalOutAfter-uTotalOutBefore; + + pfile_in_zip_read_info->crc32 = + crc32(pfile_in_zip_read_info->crc32,bufBefore, + (uInt)(uOutThis)); + + pfile_in_zip_read_info->rest_read_uncompressed -= + uOutThis; + + iRead += (uInt)(uTotalOutAfter - uTotalOutBefore); + + if (err==Z_STREAM_END) + return (iRead==0) ? UNZ_EOF : iRead; + if (err!=Z_OK) + break; + } + } + + if (err==Z_OK) + return iRead; + return err; +} + + +/* + Give the current position in uncompressed data +*/ +extern z_off_t ZEXPORT unztell (file) + unzFile file; +{ + unz_s* s; + file_in_zip_read_info_s* pfile_in_zip_read_info; + if (file==NULL) + return UNZ_PARAMERROR; + s=(unz_s*)file; + pfile_in_zip_read_info=s->pfile_in_zip_read; + + if (pfile_in_zip_read_info==NULL) + return UNZ_PARAMERROR; + + return (z_off_t)pfile_in_zip_read_info->stream.total_out; +} + + +/* + return 1 if the end of file was reached, 0 elsewhere +*/ +extern int ZEXPORT unzeof (file) + unzFile file; +{ + unz_s* s; + file_in_zip_read_info_s* pfile_in_zip_read_info; + if (file==NULL) + return UNZ_PARAMERROR; + s=(unz_s*)file; + pfile_in_zip_read_info=s->pfile_in_zip_read; + + if (pfile_in_zip_read_info==NULL) + return UNZ_PARAMERROR; + + if (pfile_in_zip_read_info->rest_read_uncompressed == 0) + return 1; + else + return 0; +} + + + +/* + Read extra field from the current file (opened by unzOpenCurrentFile) + This is the local-header version of the extra field (sometimes, there is + more info in the local-header version than in the central-header) + + if buf==NULL, it return the size of the local extra field that can be read + + if buf!=NULL, len is the size of the buffer, the extra header is copied in + buf. + the return value is the number of bytes copied in buf, or (if <0) + the error code +*/ +extern int ZEXPORT unzGetLocalExtrafield (file,buf,len) + unzFile file; + voidp buf; + unsigned len; +{ + unz_s* s; + file_in_zip_read_info_s* pfile_in_zip_read_info; + uInt read_now; + uLong size_to_read; + + if (file==NULL) + return UNZ_PARAMERROR; + s=(unz_s*)file; + pfile_in_zip_read_info=s->pfile_in_zip_read; + + if (pfile_in_zip_read_info==NULL) + return UNZ_PARAMERROR; + + size_to_read = (pfile_in_zip_read_info->size_local_extrafield - + pfile_in_zip_read_info->pos_local_extrafield); + + if (buf==NULL) + return (int)size_to_read; + + if (len>size_to_read) + read_now = (uInt)size_to_read; + else + read_now = (uInt)len ; + + if (read_now==0) + return 0; + + if (ZSEEK(pfile_in_zip_read_info->z_filefunc, + pfile_in_zip_read_info->filestream, + pfile_in_zip_read_info->offset_local_extrafield + + pfile_in_zip_read_info->pos_local_extrafield, + ZLIB_FILEFUNC_SEEK_SET)!=0) + return UNZ_ERRNO; + + if (ZREAD(pfile_in_zip_read_info->z_filefunc, + pfile_in_zip_read_info->filestream, + buf,read_now)!=read_now) + return UNZ_ERRNO; + + return (int)read_now; +} + +/* + Close the file in zip opened with unzipOpenCurrentFile + Return UNZ_CRCERROR if all the file was read but the CRC is not good +*/ +extern int ZEXPORT unzCloseCurrentFile (file) + unzFile file; +{ + int err=UNZ_OK; + + unz_s* s; + file_in_zip_read_info_s* pfile_in_zip_read_info; + if (file==NULL) + return UNZ_PARAMERROR; + s=(unz_s*)file; + pfile_in_zip_read_info=s->pfile_in_zip_read; + + if (pfile_in_zip_read_info==NULL) + return UNZ_PARAMERROR; + + + if ((pfile_in_zip_read_info->rest_read_uncompressed == 0) && + (!pfile_in_zip_read_info->raw)) + { + if (pfile_in_zip_read_info->crc32 != pfile_in_zip_read_info->crc32_wait) + err=UNZ_CRCERROR; + } + + + TRYFREE(pfile_in_zip_read_info->read_buffer); + pfile_in_zip_read_info->read_buffer = NULL; + if (pfile_in_zip_read_info->stream_initialised) + inflateEnd(&pfile_in_zip_read_info->stream); + + pfile_in_zip_read_info->stream_initialised = 0; + TRYFREE(pfile_in_zip_read_info); + + s->pfile_in_zip_read=NULL; + + return err; +} + + +/* + Get the global comment string of the ZipFile, in the szComment buffer. + uSizeBuf is the size of the szComment buffer. + return the number of byte copied or an error code <0 +*/ +extern int ZEXPORT unzGetGlobalComment (file, szComment, uSizeBuf) + unzFile file; + char *szComment; + uLong uSizeBuf; +{ + int err=UNZ_OK; + unz_s* s; + uLong uReadThis ; + if (file==NULL) + return UNZ_PARAMERROR; + s=(unz_s*)file; + + uReadThis = uSizeBuf; + if (uReadThis>s->gi.size_comment) + uReadThis = s->gi.size_comment; + + if (ZSEEK(s->z_filefunc,s->filestream,s->central_pos+22,ZLIB_FILEFUNC_SEEK_SET)!=0) + return UNZ_ERRNO; + + if (uReadThis>0) + { + *szComment='\0'; + if (ZREAD(s->z_filefunc,s->filestream,szComment,uReadThis)!=uReadThis) + return UNZ_ERRNO; + } + + if ((szComment != NULL) && (uSizeBuf > s->gi.size_comment)) + *(szComment+s->gi.size_comment)='\0'; + return (int)uReadThis; +} + +/* Additions by RX '2004 */ +extern uLong ZEXPORT unzGetOffset (file) + unzFile file; +{ + unz_s* s; + + if (file==NULL) + return UNZ_PARAMERROR; + s=(unz_s*)file; + if (!s->current_file_ok) + return 0; + if (s->gi.number_entry != 0 && s->gi.number_entry != 0xffff) + if (s->num_file==s->gi.number_entry) + return 0; + return s->pos_in_central_dir; +} + +extern int ZEXPORT unzSetOffset (file, pos) + unzFile file; + uLong pos; +{ + unz_s* s; + int err; + + if (file==NULL) + return UNZ_PARAMERROR; + s=(unz_s*)file; + + s->pos_in_central_dir = pos; + s->num_file = s->gi.number_entry; /* hack */ + err = unzlocal_GetCurrentFileInfoInternal(file,&s->cur_file_info, + &s->cur_file_info_internal, + NULL,0,NULL,0,NULL,0); + s->current_file_ok = (err == UNZ_OK); + return err; +} diff --git a/cpukit/zlib/contrib/minizip/unzip.h b/cpukit/zlib/contrib/minizip/unzip.h new file mode 100644 index 0000000000..0c7c6f143c --- /dev/null +++ b/cpukit/zlib/contrib/minizip/unzip.h @@ -0,0 +1,352 @@ +/* unzip.h -- IO for uncompress .zip files using zlib + Version 1.01, May 8th, 2004 + + Copyright (C) 1998-2004 Gilles Vollant + + This unzip package allow extract file from .ZIP file, compatible with PKZip 2.04g + WinZip, InfoZip tools and compatible. + Encryption and multi volume ZipFile (span) are not supported. + Old compressions used by old PKZip 1.x are not supported + + + I WAIT FEEDBACK at mail info@winimage.com + Visit also http://www.winimage.com/zLibDll/unzip.htm for evolution + + Condition of use and distribution are the same than zlib : + + This software is provided 'as-is', without any express or implied + warranty. In no event will the authors be held liable for any damages + arising from the use of this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute it + freely, subject to the following restrictions: + + 1. The origin of this software must not be misrepresented; you must not + claim that you wrote the original software. If you use this software + in a product, an acknowledgment in the product documentation would be + appreciated but is not required. + 2. Altered source versions must be plainly marked as such, and must not be + misrepresented as being the original software. + 3. This notice may not be removed or altered from any source distribution. + + +*/ + +/* for more info about .ZIP format, see + http://www.info-zip.org/pub/infozip/doc/appnote-981119-iz.zip + http://www.info-zip.org/pub/infozip/doc/ + PkWare has also a specification at : + ftp://ftp.pkware.com/probdesc.zip +*/ + +#ifndef _unz_H +#define _unz_H + +#ifdef __cplusplus +extern "C" { +#endif + +#ifndef _ZLIB_H +#include "zlib.h" +#endif + +#ifndef _ZLIBIOAPI_H +#include "ioapi.h" +#endif + +#if defined(STRICTUNZIP) || defined(STRICTZIPUNZIP) +/* like the STRICT of WIN32, we define a pointer that cannot be converted + from (void*) without cast */ +typedef struct TagunzFile__ { int unused; } unzFile__; +typedef unzFile__ *unzFile; +#else +typedef voidp unzFile; +#endif + + +#define UNZ_OK (0) +#define UNZ_END_OF_LIST_OF_FILE (-100) +#define UNZ_ERRNO (Z_ERRNO) +#define UNZ_EOF (0) +#define UNZ_PARAMERROR (-102) +#define UNZ_BADZIPFILE (-103) +#define UNZ_INTERNALERROR (-104) +#define UNZ_CRCERROR (-105) + +/* tm_unz contain date/time info */ +typedef struct tm_unz_s +{ + uInt tm_sec; /* seconds after the minute - [0,59] */ + uInt tm_min; /* minutes after the hour - [0,59] */ + uInt tm_hour; /* hours since midnight - [0,23] */ + uInt tm_mday; /* day of the month - [1,31] */ + uInt tm_mon; /* months since January - [0,11] */ + uInt tm_year; /* years - [1980..2044] */ +} tm_unz; + +/* unz_global_info structure contain global data about the ZIPfile + These data comes from the end of central dir */ +typedef struct unz_global_info_s +{ + uLong number_entry; /* total number of entries in + the central dir on this disk */ + uLong size_comment; /* size of the global comment of the zipfile */ +} unz_global_info; + + +/* unz_file_info contain information about a file in the zipfile */ +typedef struct unz_file_info_s +{ + uLong version; /* version made by 2 bytes */ + uLong version_needed; /* version needed to extract 2 bytes */ + uLong flag; /* general purpose bit flag 2 bytes */ + uLong compression_method; /* compression method 2 bytes */ + uLong dosDate; /* last mod file date in Dos fmt 4 bytes */ + uLong crc; /* crc-32 4 bytes */ + uLong compressed_size; /* compressed size 4 bytes */ + uLong uncompressed_size; /* uncompressed size 4 bytes */ + uLong size_filename; /* filename length 2 bytes */ + uLong size_file_extra; /* extra field length 2 bytes */ + uLong size_file_comment; /* file comment length 2 bytes */ + + uLong disk_num_start; /* disk number start 2 bytes */ + uLong internal_fa; /* internal file attributes 2 bytes */ + uLong external_fa; /* external file attributes 4 bytes */ + + tm_unz tmu_date; +} unz_file_info; + +extern int ZEXPORT unzStringFileNameCompare OF ((const char* fileName1, + const char* fileName2, + int iCaseSensitivity)); +/* + Compare two filename (fileName1,fileName2). + If iCaseSenisivity = 1, comparision is case sensitivity (like strcmp) + If iCaseSenisivity = 2, comparision is not case sensitivity (like strcmpi + or strcasecmp) + If iCaseSenisivity = 0, case sensitivity is defaut of your operating system + (like 1 on Unix, 2 on Windows) +*/ + + +extern unzFile ZEXPORT unzOpen OF((const char *path)); +/* + Open a Zip file. path contain the full pathname (by example, + on a Windows XP computer "c:\\zlib\\zlib113.zip" or on an Unix computer + "zlib/zlib113.zip". + If the zipfile cannot be opened (file don't exist or in not valid), the + return value is NULL. + Else, the return value is a unzFile Handle, usable with other function + of this unzip package. +*/ + +extern unzFile ZEXPORT unzOpen2 OF((const char *path, + zlib_filefunc_def* pzlib_filefunc_def)); +/* + Open a Zip file, like unzOpen, but provide a set of file low level API + for read/write the zip file (see ioapi.h) +*/ + +extern int ZEXPORT unzClose OF((unzFile file)); +/* + Close a ZipFile opened with unzipOpen. + If there is files inside the .Zip opened with unzOpenCurrentFile (see later), + these files MUST be closed with unzipCloseCurrentFile before call unzipClose. + return UNZ_OK if there is no problem. */ + +extern int ZEXPORT unzGetGlobalInfo OF((unzFile file, + unz_global_info *pglobal_info)); +/* + Write info about the ZipFile in the *pglobal_info structure. + No preparation of the structure is needed + return UNZ_OK if there is no problem. */ + + +extern int ZEXPORT unzGetGlobalComment OF((unzFile file, + char *szComment, + uLong uSizeBuf)); +/* + Get the global comment string of the ZipFile, in the szComment buffer. + uSizeBuf is the size of the szComment buffer. + return the number of byte copied or an error code <0 +*/ + + +/***************************************************************************/ +/* Unzip package allow you browse the directory of the zipfile */ + +extern int ZEXPORT unzGoToFirstFile OF((unzFile file)); +/* + Set the current file of the zipfile to the first file. + return UNZ_OK if there is no problem +*/ + +extern int ZEXPORT unzGoToNextFile OF((unzFile file)); +/* + Set the current file of the zipfile to the next file. + return UNZ_OK if there is no problem + return UNZ_END_OF_LIST_OF_FILE if the actual file was the latest. +*/ + +extern int ZEXPORT unzLocateFile OF((unzFile file, + const char *szFileName, + int iCaseSensitivity)); +/* + Try locate the file szFileName in the zipfile. + For the iCaseSensitivity signification, see unzStringFileNameCompare + + return value : + UNZ_OK if the file is found. It becomes the current file. + UNZ_END_OF_LIST_OF_FILE if the file is not found +*/ + + +/* ****************************************** */ +/* Ryan supplied functions */ +/* unz_file_info contain information about a file in the zipfile */ +typedef struct unz_file_pos_s +{ + uLong pos_in_zip_directory; /* offset in zip file directory */ + uLong num_of_file; /* # of file */ +} unz_file_pos; + +extern int ZEXPORT unzGetFilePos( + unzFile file, + unz_file_pos* file_pos); + +extern int ZEXPORT unzGoToFilePos( + unzFile file, + unz_file_pos* file_pos); + +/* ****************************************** */ + +extern int ZEXPORT unzGetCurrentFileInfo OF((unzFile file, + unz_file_info *pfile_info, + char *szFileName, + uLong fileNameBufferSize, + void *extraField, + uLong extraFieldBufferSize, + char *szComment, + uLong commentBufferSize)); +/* + Get Info about the current file + if pfile_info!=NULL, the *pfile_info structure will contain somes info about + the current file + if szFileName!=NULL, the filemane string will be copied in szFileName + (fileNameBufferSize is the size of the buffer) + if extraField!=NULL, the extra field information will be copied in extraField + (extraFieldBufferSize is the size of the buffer). + This is the Central-header version of the extra field + if szComment!=NULL, the comment string of the file will be copied in szComment + (commentBufferSize is the size of the buffer) +*/ + +/***************************************************************************/ +/* for reading the content of the current zipfile, you can open it, read data + from it, and close it (you can close it before reading all the file) + */ + +extern int ZEXPORT unzOpenCurrentFile OF((unzFile file)); +/* + Open for reading data the current file in the zipfile. + If there is no error, the return value is UNZ_OK. +*/ + +extern int ZEXPORT unzOpenCurrentFilePassword OF((unzFile file, + const char* password)); +/* + Open for reading data the current file in the zipfile. + password is a crypting password + If there is no error, the return value is UNZ_OK. +*/ + +extern int ZEXPORT unzOpenCurrentFile2 OF((unzFile file, + int* method, + int* level, + int raw)); +/* + Same than unzOpenCurrentFile, but open for read raw the file (not uncompress) + if raw==1 + *method will receive method of compression, *level will receive level of + compression + note : you can set level parameter as NULL (if you did not want known level, + but you CANNOT set method parameter as NULL +*/ + +extern int ZEXPORT unzOpenCurrentFile3 OF((unzFile file, + int* method, + int* level, + int raw, + const char* password)); +/* + Same than unzOpenCurrentFile, but open for read raw the file (not uncompress) + if raw==1 + *method will receive method of compression, *level will receive level of + compression + note : you can set level parameter as NULL (if you did not want known level, + but you CANNOT set method parameter as NULL +*/ + + +extern int ZEXPORT unzCloseCurrentFile OF((unzFile file)); +/* + Close the file in zip opened with unzOpenCurrentFile + Return UNZ_CRCERROR if all the file was read but the CRC is not good +*/ + +extern int ZEXPORT unzReadCurrentFile OF((unzFile file, + voidp buf, + unsigned len)); +/* + Read bytes from the current file (opened by unzOpenCurrentFile) + buf contain buffer where data must be copied + len the size of buf. + + return the number of byte copied if somes bytes are copied + return 0 if the end of file was reached + return <0 with error code if there is an error + (UNZ_ERRNO for IO error, or zLib error for uncompress error) +*/ + +extern z_off_t ZEXPORT unztell OF((unzFile file)); +/* + Give the current position in uncompressed data +*/ + +extern int ZEXPORT unzeof OF((unzFile file)); +/* + return 1 if the end of file was reached, 0 elsewhere +*/ + +extern int ZEXPORT unzGetLocalExtrafield OF((unzFile file, + voidp buf, + unsigned len)); +/* + Read extra field from the current file (opened by unzOpenCurrentFile) + This is the local-header version of the extra field (sometimes, there is + more info in the local-header version than in the central-header) + + if buf==NULL, it return the size of the local extra field + + if buf!=NULL, len is the size of the buffer, the extra header is copied in + buf. + the return value is the number of bytes copied in buf, or (if <0) + the error code +*/ + +/***************************************************************************/ + +/* Get the current file offset */ +extern uLong ZEXPORT unzGetOffset (unzFile file); + +/* Set the current file offset */ +extern int ZEXPORT unzSetOffset (unzFile file, uLong pos); + + + +#ifdef __cplusplus +} +#endif + +#endif /* _unz_H */ diff --git a/cpukit/zlib/contrib/minizip/zip.c b/cpukit/zlib/contrib/minizip/zip.c new file mode 100644 index 0000000000..2ccd7fd1ad --- /dev/null +++ b/cpukit/zlib/contrib/minizip/zip.c @@ -0,0 +1,1188 @@ +/* zip.c -- IO on .zip files using zlib + Version 1.01, May 8th, 2004 + + Copyright (C) 1998-2004 Gilles Vollant + + Read zip.h for more info +*/ + + +#include +#include +#include +#include +#include "zlib.h" +#include "zip.h" + +#ifdef STDC +# include +# include +# include +#endif +#ifdef NO_ERRNO_H + extern int errno; +#else +# include +#endif + + +#ifndef local +# define local static +#endif +/* compile with -Dlocal if your debugger can't find static symbols */ + +#ifndef VERSIONMADEBY +# define VERSIONMADEBY (0x0) /* platform depedent */ +#endif + +#ifndef Z_BUFSIZE +#define Z_BUFSIZE (16384) +#endif + +#ifndef Z_MAXFILENAMEINZIP +#define Z_MAXFILENAMEINZIP (256) +#endif + +#ifndef ALLOC +# define ALLOC(size) (malloc(size)) +#endif +#ifndef TRYFREE +# define TRYFREE(p) {if (p) free(p);} +#endif + +/* +#define SIZECENTRALDIRITEM (0x2e) +#define SIZEZIPLOCALHEADER (0x1e) +*/ + +/* I've found an old Unix (a SunOS 4.1.3_U1) without all SEEK_* defined.... */ + +#ifndef SEEK_CUR +#define SEEK_CUR 1 +#endif + +#ifndef SEEK_END +#define SEEK_END 2 +#endif + +#ifndef SEEK_SET +#define SEEK_SET 0 +#endif + +#ifndef DEF_MEM_LEVEL +#if MAX_MEM_LEVEL >= 8 +# define DEF_MEM_LEVEL 8 +#else +# define DEF_MEM_LEVEL MAX_MEM_LEVEL +#endif +#endif +const char zip_copyright[] = + " zip 1.01 Copyright 1998-2004 Gilles Vollant - http://www.winimage.com/zLibDll"; + + +#define SIZEDATA_INDATABLOCK (4096-(4*4)) + +#define LOCALHEADERMAGIC (0x04034b50) +#define CENTRALHEADERMAGIC (0x02014b50) +#define ENDHEADERMAGIC (0x06054b50) + +#define FLAG_LOCALHEADER_OFFSET (0x06) +#define CRC_LOCALHEADER_OFFSET (0x0e) + +#define SIZECENTRALHEADER (0x2e) /* 46 */ + +typedef struct linkedlist_datablock_internal_s +{ + struct linkedlist_datablock_internal_s* next_datablock; + uLong avail_in_this_block; + uLong filled_in_this_block; + uLong unused; /* for future use and alignement */ + unsigned char data[SIZEDATA_INDATABLOCK]; +} linkedlist_datablock_internal; + +typedef struct linkedlist_data_s +{ + linkedlist_datablock_internal* first_block; + linkedlist_datablock_internal* last_block; +} linkedlist_data; + + +typedef struct +{ + z_stream stream; /* zLib stream structure for inflate */ + int stream_initialised; /* 1 is stream is initialised */ + uInt pos_in_buffered_data; /* last written byte in buffered_data */ + + uLong pos_local_header; /* offset of the local header of the file + currenty writing */ + char* central_header; /* central header data for the current file */ + uLong size_centralheader; /* size of the central header for cur file */ + uLong flag; /* flag of the file currently writing */ + + int method; /* compression method of file currenty wr.*/ + int raw; /* 1 for directly writing raw data */ + Byte buffered_data[Z_BUFSIZE];/* buffer contain compressed data to be writ*/ + uLong dosDate; + uLong crc32; + int encrypt; +#ifndef NOCRYPT + unsigned long keys[3]; /* keys defining the pseudo-random sequence */ + const unsigned long* pcrc_32_tab; + int crypt_header_size; +#endif +} curfile_info; + +typedef struct +{ + zlib_filefunc_def z_filefunc; + voidpf filestream; /* io structore of the zipfile */ + linkedlist_data central_dir;/* datablock with central dir in construction*/ + int in_opened_file_inzip; /* 1 if a file in the zip is currently writ.*/ + curfile_info ci; /* info on the file curretly writing */ + + uLong begin_pos; /* position of the beginning of the zipfile */ + uLong add_position_when_writting_offset; + uLong number_entry; +} zip_internal; + + + +#ifndef NOCRYPT +#define INCLUDECRYPTINGCODE_IFCRYPTALLOWED +#include "crypt.h" +#endif + +local linkedlist_datablock_internal* allocate_new_datablock() +{ + linkedlist_datablock_internal* ldi; + ldi = (linkedlist_datablock_internal*) + ALLOC(sizeof(linkedlist_datablock_internal)); + if (ldi!=NULL) + { + ldi->next_datablock = NULL ; + ldi->filled_in_this_block = 0 ; + ldi->avail_in_this_block = SIZEDATA_INDATABLOCK ; + } + return ldi; +} + +local void free_datablock(ldi) + linkedlist_datablock_internal* ldi; +{ + while (ldi!=NULL) + { + linkedlist_datablock_internal* ldinext = ldi->next_datablock; + TRYFREE(ldi); + ldi = ldinext; + } +} + +local void init_linkedlist(ll) + linkedlist_data* ll; +{ + ll->first_block = ll->last_block = NULL; +} + +local void free_linkedlist(ll) + linkedlist_data* ll; +{ + free_datablock(ll->first_block); + ll->first_block = ll->last_block = NULL; +} + + +local int add_data_in_datablock(ll,buf,len) + linkedlist_data* ll; + const void* buf; + uLong len; +{ + linkedlist_datablock_internal* ldi; + const unsigned char* from_copy; + + if (ll==NULL) + return ZIP_INTERNALERROR; + + if (ll->last_block == NULL) + { + ll->first_block = ll->last_block = allocate_new_datablock(); + if (ll->first_block == NULL) + return ZIP_INTERNALERROR; + } + + ldi = ll->last_block; + from_copy = (unsigned char*)buf; + + while (len>0) + { + uInt copy_this; + uInt i; + unsigned char* to_copy; + + if (ldi->avail_in_this_block==0) + { + ldi->next_datablock = allocate_new_datablock(); + if (ldi->next_datablock == NULL) + return ZIP_INTERNALERROR; + ldi = ldi->next_datablock ; + ll->last_block = ldi; + } + + if (ldi->avail_in_this_block < len) + copy_this = (uInt)ldi->avail_in_this_block; + else + copy_this = (uInt)len; + + to_copy = &(ldi->data[ldi->filled_in_this_block]); + + for (i=0;ifilled_in_this_block += copy_this; + ldi->avail_in_this_block -= copy_this; + from_copy += copy_this ; + len -= copy_this; + } + return ZIP_OK; +} + + + +/****************************************************************************/ + +#ifndef NO_ADDFILEINEXISTINGZIP +/* =========================================================================== + Inputs a long in LSB order to the given file + nbByte == 1, 2 or 4 (byte, short or long) +*/ + +local int ziplocal_putValue OF((const zlib_filefunc_def* pzlib_filefunc_def, + voidpf filestream, uLong x, int nbByte)); +local int ziplocal_putValue (pzlib_filefunc_def, filestream, x, nbByte) + const zlib_filefunc_def* pzlib_filefunc_def; + voidpf filestream; + uLong x; + int nbByte; +{ + unsigned char buf[4]; + int n; + for (n = 0; n < nbByte; n++) + { + buf[n] = (unsigned char)(x & 0xff); + x >>= 8; + } + if (x != 0) + { /* data overflow - hack for ZIP64 (X Roche) */ + for (n = 0; n < nbByte; n++) + { + buf[n] = 0xff; + } + } + + if (ZWRITE(*pzlib_filefunc_def,filestream,buf,nbByte)!=(uLong)nbByte) + return ZIP_ERRNO; + else + return ZIP_OK; +} + +local void ziplocal_putValue_inmemory OF((void* dest, uLong x, int nbByte)); +local void ziplocal_putValue_inmemory (dest, x, nbByte) + void* dest; + uLong x; + int nbByte; +{ + unsigned char* buf=(unsigned char*)dest; + int n; + for (n = 0; n < nbByte; n++) { + buf[n] = (unsigned char)(x & 0xff); + x >>= 8; + } + + if (x != 0) + { /* data overflow - hack for ZIP64 */ + for (n = 0; n < nbByte; n++) + { + buf[n] = 0xff; + } + } +} + +/****************************************************************************/ + + +local uLong ziplocal_TmzDateToDosDate(ptm,dosDate) + const tm_zip* ptm; + uLong dosDate; +{ + uLong year = (uLong)ptm->tm_year; + if (year>1980) + year-=1980; + else if (year>80) + year-=80; + return + (uLong) (((ptm->tm_mday) + (32 * (ptm->tm_mon+1)) + (512 * year)) << 16) | + ((ptm->tm_sec/2) + (32* ptm->tm_min) + (2048 * (uLong)ptm->tm_hour)); +} + + +/****************************************************************************/ + +local int ziplocal_getByte OF(( + const zlib_filefunc_def* pzlib_filefunc_def, + voidpf filestream, + int *pi)); + +local int ziplocal_getByte(pzlib_filefunc_def,filestream,pi) + const zlib_filefunc_def* pzlib_filefunc_def; + voidpf filestream; + int *pi; +{ + unsigned char c; + int err = (int)ZREAD(*pzlib_filefunc_def,filestream,&c,1); + if (err==1) + { + *pi = (int)c; + return ZIP_OK; + } + else + { + if (ZERROR(*pzlib_filefunc_def,filestream)) + return ZIP_ERRNO; + else + return ZIP_EOF; + } +} + + +/* =========================================================================== + Reads a long in LSB order from the given gz_stream. Sets +*/ +local int ziplocal_getShort OF(( + const zlib_filefunc_def* pzlib_filefunc_def, + voidpf filestream, + uLong *pX)); + +local int ziplocal_getShort (pzlib_filefunc_def,filestream,pX) + const zlib_filefunc_def* pzlib_filefunc_def; + voidpf filestream; + uLong *pX; +{ + uLong x ; + int i; + int err; + + err = ziplocal_getByte(pzlib_filefunc_def,filestream,&i); + x = (uLong)i; + + if (err==ZIP_OK) + err = ziplocal_getByte(pzlib_filefunc_def,filestream,&i); + x += ((uLong)i)<<8; + + if (err==ZIP_OK) + *pX = x; + else + *pX = 0; + return err; +} + +local int ziplocal_getLong OF(( + const zlib_filefunc_def* pzlib_filefunc_def, + voidpf filestream, + uLong *pX)); + +local int ziplocal_getLong (pzlib_filefunc_def,filestream,pX) + const zlib_filefunc_def* pzlib_filefunc_def; + voidpf filestream; + uLong *pX; +{ + uLong x ; + int i; + int err; + + err = ziplocal_getByte(pzlib_filefunc_def,filestream,&i); + x = (uLong)i; + + if (err==ZIP_OK) + err = ziplocal_getByte(pzlib_filefunc_def,filestream,&i); + x += ((uLong)i)<<8; + + if (err==ZIP_OK) + err = ziplocal_getByte(pzlib_filefunc_def,filestream,&i); + x += ((uLong)i)<<16; + + if (err==ZIP_OK) + err = ziplocal_getByte(pzlib_filefunc_def,filestream,&i); + x += ((uLong)i)<<24; + + if (err==ZIP_OK) + *pX = x; + else + *pX = 0; + return err; +} + +#ifndef BUFREADCOMMENT +#define BUFREADCOMMENT (0x400) +#endif +/* + Locate the Central directory of a zipfile (at the end, just before + the global comment) +*/ +local uLong ziplocal_SearchCentralDir OF(( + const zlib_filefunc_def* pzlib_filefunc_def, + voidpf filestream)); + +local uLong ziplocal_SearchCentralDir(pzlib_filefunc_def,filestream) + const zlib_filefunc_def* pzlib_filefunc_def; + voidpf filestream; +{ + unsigned char* buf; + uLong uSizeFile; + uLong uBackRead; + uLong uMaxBack=0xffff; /* maximum size of global comment */ + uLong uPosFound=0; + + if (ZSEEK(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0) + return 0; + + + uSizeFile = ZTELL(*pzlib_filefunc_def,filestream); + + if (uMaxBack>uSizeFile) + uMaxBack = uSizeFile; + + buf = (unsigned char*)ALLOC(BUFREADCOMMENT+4); + if (buf==NULL) + return 0; + + uBackRead = 4; + while (uBackReaduMaxBack) + uBackRead = uMaxBack; + else + uBackRead+=BUFREADCOMMENT; + uReadPos = uSizeFile-uBackRead ; + + uReadSize = ((BUFREADCOMMENT+4) < (uSizeFile-uReadPos)) ? + (BUFREADCOMMENT+4) : (uSizeFile-uReadPos); + if (ZSEEK(*pzlib_filefunc_def,filestream,uReadPos,ZLIB_FILEFUNC_SEEK_SET)!=0) + break; + + if (ZREAD(*pzlib_filefunc_def,filestream,buf,uReadSize)!=uReadSize) + break; + + for (i=(int)uReadSize-3; (i--)>0;) + if (((*(buf+i))==0x50) && ((*(buf+i+1))==0x4b) && + ((*(buf+i+2))==0x05) && ((*(buf+i+3))==0x06)) + { + uPosFound = uReadPos+i; + break; + } + + if (uPosFound!=0) + break; + } + TRYFREE(buf); + return uPosFound; +} +#endif /* !NO_ADDFILEINEXISTINGZIP*/ + +/************************************************************/ +extern zipFile ZEXPORT zipOpen2 (pathname, append, globalcomment, pzlib_filefunc_def) + const char *pathname; + int append; + zipcharpc* globalcomment; + zlib_filefunc_def* pzlib_filefunc_def; +{ + zip_internal ziinit; + zip_internal* zi; + int err=ZIP_OK; + + + if (pzlib_filefunc_def==NULL) + fill_fopen_filefunc(&ziinit.z_filefunc); + else + ziinit.z_filefunc = *pzlib_filefunc_def; + + ziinit.filestream = (*(ziinit.z_filefunc.zopen_file)) + (ziinit.z_filefunc.opaque, + pathname, + (append == APPEND_STATUS_CREATE) ? + (ZLIB_FILEFUNC_MODE_READ | ZLIB_FILEFUNC_MODE_WRITE | ZLIB_FILEFUNC_MODE_CREATE) : + (ZLIB_FILEFUNC_MODE_READ | ZLIB_FILEFUNC_MODE_WRITE | ZLIB_FILEFUNC_MODE_EXISTING)); + + if (ziinit.filestream == NULL) + return NULL; + ziinit.begin_pos = ZTELL(ziinit.z_filefunc,ziinit.filestream); + ziinit.in_opened_file_inzip = 0; + ziinit.ci.stream_initialised = 0; + ziinit.number_entry = 0; + ziinit.add_position_when_writting_offset = 0; + init_linkedlist(&(ziinit.central_dir)); + + + zi = (zip_internal*)ALLOC(sizeof(zip_internal)); + if (zi==NULL) + { + ZCLOSE(ziinit.z_filefunc,ziinit.filestream); + return NULL; + } + + /* now we add file in a zipfile */ +# ifndef NO_ADDFILEINEXISTINGZIP + if (append == APPEND_STATUS_ADDINZIP) + { + uLong byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/ + + uLong size_central_dir; /* size of the central directory */ + uLong offset_central_dir; /* offset of start of central directory */ + uLong central_pos,uL; + + uLong number_disk; /* number of the current dist, used for + spaning ZIP, unsupported, always 0*/ + uLong number_disk_with_CD; /* number the the disk with central dir, used + for spaning ZIP, unsupported, always 0*/ + uLong number_entry; + uLong number_entry_CD; /* total number of entries in + the central dir + (same than number_entry on nospan) */ + uLong size_comment; + + central_pos = ziplocal_SearchCentralDir(&ziinit.z_filefunc,ziinit.filestream); + if (central_pos==0) + err=ZIP_ERRNO; + + if (ZSEEK(ziinit.z_filefunc, ziinit.filestream, + central_pos,ZLIB_FILEFUNC_SEEK_SET)!=0) + err=ZIP_ERRNO; + + /* the signature, already checked */ + if (ziplocal_getLong(&ziinit.z_filefunc, ziinit.filestream,&uL)!=ZIP_OK) + err=ZIP_ERRNO; + + /* number of this disk */ + if (ziplocal_getShort(&ziinit.z_filefunc, ziinit.filestream,&number_disk)!=ZIP_OK) + err=ZIP_ERRNO; + + /* number of the disk with the start of the central directory */ + if (ziplocal_getShort(&ziinit.z_filefunc, ziinit.filestream,&number_disk_with_CD)!=ZIP_OK) + err=ZIP_ERRNO; + + /* total number of entries in the central dir on this disk */ + if (ziplocal_getShort(&ziinit.z_filefunc, ziinit.filestream,&number_entry)!=ZIP_OK) + err=ZIP_ERRNO; + + /* total number of entries in the central dir */ + if (ziplocal_getShort(&ziinit.z_filefunc, ziinit.filestream,&number_entry_CD)!=ZIP_OK) + err=ZIP_ERRNO; + + if ((number_entry_CD!=number_entry) || + (number_disk_with_CD!=0) || + (number_disk!=0)) + err=ZIP_BADZIPFILE; + + /* size of the central directory */ + if (ziplocal_getLong(&ziinit.z_filefunc, ziinit.filestream,&size_central_dir)!=ZIP_OK) + err=ZIP_ERRNO; + + /* offset of start of central directory with respect to the + starting disk number */ + if (ziplocal_getLong(&ziinit.z_filefunc, ziinit.filestream,&offset_central_dir)!=ZIP_OK) + err=ZIP_ERRNO; + + /* zipfile comment length */ + if (ziplocal_getShort(&ziinit.z_filefunc, ziinit.filestream,&size_comment)!=ZIP_OK) + err=ZIP_ERRNO; + + if ((central_pos0) && (err==ZIP_OK)) + { + uLong read_this = SIZEDATA_INDATABLOCK; + if (read_this > size_central_dir_to_read) + read_this = size_central_dir_to_read; + if (ZREAD(ziinit.z_filefunc, ziinit.filestream,buf_read,read_this) != read_this) + err=ZIP_ERRNO; + + if (err==ZIP_OK) + err = add_data_in_datablock(&ziinit.central_dir,buf_read, + (uLong)read_this); + size_central_dir_to_read-=read_this; + } + TRYFREE(buf_read); + } + ziinit.begin_pos = byte_before_the_zipfile; + ziinit.number_entry = number_entry_CD; + + if (ZSEEK(ziinit.z_filefunc, ziinit.filestream, + offset_central_dir+byte_before_the_zipfile,ZLIB_FILEFUNC_SEEK_SET)!=0) + err=ZIP_ERRNO; + } +# endif /* !NO_ADDFILEINEXISTINGZIP*/ + + if (err != ZIP_OK) + { + TRYFREE(zi); + return NULL; + } + else + { + *zi = ziinit; + return (zipFile)zi; + } +} + +extern zipFile ZEXPORT zipOpen (pathname, append) + const char *pathname; + int append; +{ + return zipOpen2(pathname,append,NULL,NULL); +} + +extern int ZEXPORT zipOpenNewFileInZip3 (file, filename, zipfi, + extrafield_local, size_extrafield_local, + extrafield_global, size_extrafield_global, + comment, method, level, raw, + windowBits, memLevel, strategy, + password, crcForCrypting) + zipFile file; + const char* filename; + const zip_fileinfo* zipfi; + const void* extrafield_local; + uInt size_extrafield_local; + const void* extrafield_global; + uInt size_extrafield_global; + const char* comment; + int method; + int level; + int raw; + int windowBits; + int memLevel; + int strategy; + const char* password; + uLong crcForCrypting; +{ + zip_internal* zi; + uInt size_filename; + uInt size_comment; + uInt i; + int err = ZIP_OK; + +# ifdef NOCRYPT + if (password != NULL) + return ZIP_PARAMERROR; +# endif + + if (file == NULL) + return ZIP_PARAMERROR; + if ((method!=0) && (method!=Z_DEFLATED)) + return ZIP_PARAMERROR; + + zi = (zip_internal*)file; + + if (zi->in_opened_file_inzip == 1) + { + err = zipCloseFileInZip (file); + if (err != ZIP_OK) + return err; + } + + + if (filename==NULL) + filename="-"; + + if (comment==NULL) + size_comment = 0; + else + size_comment = (uInt)strlen(comment); + + size_filename = (uInt)strlen(filename); + + if (zipfi == NULL) + zi->ci.dosDate = 0; + else + { + if (zipfi->dosDate != 0) + zi->ci.dosDate = zipfi->dosDate; + else zi->ci.dosDate = ziplocal_TmzDateToDosDate(&zipfi->tmz_date,zipfi->dosDate); + } + + zi->ci.flag = 0; + if ((level==8) || (level==9)) + zi->ci.flag |= 2; + if ((level==2)) + zi->ci.flag |= 4; + if ((level==1)) + zi->ci.flag |= 6; + if (password != NULL) + zi->ci.flag |= 1; + + zi->ci.crc32 = 0; + zi->ci.method = method; + zi->ci.encrypt = 0; + zi->ci.stream_initialised = 0; + zi->ci.pos_in_buffered_data = 0; + zi->ci.raw = raw; + zi->ci.pos_local_header = ZTELL(zi->z_filefunc,zi->filestream) ; + zi->ci.size_centralheader = SIZECENTRALHEADER + size_filename + + size_extrafield_global + size_comment; + zi->ci.central_header = (char*)ALLOC((uInt)zi->ci.size_centralheader); + + ziplocal_putValue_inmemory(zi->ci.central_header,(uLong)CENTRALHEADERMAGIC,4); + /* version info */ + ziplocal_putValue_inmemory(zi->ci.central_header+4,(uLong)VERSIONMADEBY,2); + ziplocal_putValue_inmemory(zi->ci.central_header+6,(uLong)20,2); + ziplocal_putValue_inmemory(zi->ci.central_header+8,(uLong)zi->ci.flag,2); + ziplocal_putValue_inmemory(zi->ci.central_header+10,(uLong)zi->ci.method,2); + ziplocal_putValue_inmemory(zi->ci.central_header+12,(uLong)zi->ci.dosDate,4); + ziplocal_putValue_inmemory(zi->ci.central_header+16,(uLong)0,4); /*crc*/ + ziplocal_putValue_inmemory(zi->ci.central_header+20,(uLong)0,4); /*compr size*/ + ziplocal_putValue_inmemory(zi->ci.central_header+24,(uLong)0,4); /*uncompr size*/ + ziplocal_putValue_inmemory(zi->ci.central_header+28,(uLong)size_filename,2); + ziplocal_putValue_inmemory(zi->ci.central_header+30,(uLong)size_extrafield_global,2); + ziplocal_putValue_inmemory(zi->ci.central_header+32,(uLong)size_comment,2); + ziplocal_putValue_inmemory(zi->ci.central_header+34,(uLong)0,2); /*disk nm start*/ + + if (zipfi==NULL) + ziplocal_putValue_inmemory(zi->ci.central_header+36,(uLong)0,2); + else + ziplocal_putValue_inmemory(zi->ci.central_header+36,(uLong)zipfi->internal_fa,2); + + if (zipfi==NULL) + ziplocal_putValue_inmemory(zi->ci.central_header+38,(uLong)0,4); + else + ziplocal_putValue_inmemory(zi->ci.central_header+38,(uLong)zipfi->external_fa,4); + + ziplocal_putValue_inmemory(zi->ci.central_header+42,(uLong)zi->ci.pos_local_header- zi->add_position_when_writting_offset,4); + + for (i=0;ici.central_header+SIZECENTRALHEADER+i) = *(filename+i); + + for (i=0;ici.central_header+SIZECENTRALHEADER+size_filename+i) = + *(((const char*)extrafield_global)+i); + + for (i=0;ici.central_header+SIZECENTRALHEADER+size_filename+ + size_extrafield_global+i) = *(comment+i); + if (zi->ci.central_header == NULL) + return ZIP_INTERNALERROR; + + /* write the local header */ + err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)LOCALHEADERMAGIC,4); + + if (err==ZIP_OK) + err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)20,2);/* version needed to extract */ + if (err==ZIP_OK) + err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->ci.flag,2); + + if (err==ZIP_OK) + err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->ci.method,2); + + if (err==ZIP_OK) + err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->ci.dosDate,4); + + if (err==ZIP_OK) + err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); /* crc 32, unknown */ + if (err==ZIP_OK) + err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); /* compressed size, unknown */ + if (err==ZIP_OK) + err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); /* uncompressed size, unknown */ + + if (err==ZIP_OK) + err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_filename,2); + + if (err==ZIP_OK) + err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_extrafield_local,2); + + if ((err==ZIP_OK) && (size_filename>0)) + if (ZWRITE(zi->z_filefunc,zi->filestream,filename,size_filename)!=size_filename) + err = ZIP_ERRNO; + + if ((err==ZIP_OK) && (size_extrafield_local>0)) + if (ZWRITE(zi->z_filefunc,zi->filestream,extrafield_local,size_extrafield_local) + !=size_extrafield_local) + err = ZIP_ERRNO; + + zi->ci.stream.avail_in = (uInt)0; + zi->ci.stream.avail_out = (uInt)Z_BUFSIZE; + zi->ci.stream.next_out = zi->ci.buffered_data; + zi->ci.stream.total_in = 0; + zi->ci.stream.total_out = 0; + + if ((err==ZIP_OK) && (zi->ci.method == Z_DEFLATED) && (!zi->ci.raw)) + { + zi->ci.stream.zalloc = (alloc_func)0; + zi->ci.stream.zfree = (free_func)0; + zi->ci.stream.opaque = (voidpf)0; + + if (windowBits>0) + windowBits = -windowBits; + + err = deflateInit2(&zi->ci.stream, level, + Z_DEFLATED, windowBits, memLevel, strategy); + + if (err==Z_OK) + zi->ci.stream_initialised = 1; + } +# ifndef NOCRYPT + zi->ci.crypt_header_size = 0; + if ((err==Z_OK) && (password != NULL)) + { + unsigned char bufHead[RAND_HEAD_LEN]; + unsigned int sizeHead; + zi->ci.encrypt = 1; + zi->ci.pcrc_32_tab = get_crc_table(); + /*init_keys(password,zi->ci.keys,zi->ci.pcrc_32_tab);*/ + + sizeHead=crypthead(password,bufHead,RAND_HEAD_LEN,zi->ci.keys,zi->ci.pcrc_32_tab,crcForCrypting); + zi->ci.crypt_header_size = sizeHead; + + if (ZWRITE(zi->z_filefunc,zi->filestream,bufHead,sizeHead) != sizeHead) + err = ZIP_ERRNO; + } +# endif + + if (err==Z_OK) + zi->in_opened_file_inzip = 1; + return err; +} + +extern int ZEXPORT zipOpenNewFileInZip2(file, filename, zipfi, + extrafield_local, size_extrafield_local, + extrafield_global, size_extrafield_global, + comment, method, level, raw) + zipFile file; + const char* filename; + const zip_fileinfo* zipfi; + const void* extrafield_local; + uInt size_extrafield_local; + const void* extrafield_global; + uInt size_extrafield_global; + const char* comment; + int method; + int level; + int raw; +{ + return zipOpenNewFileInZip3 (file, filename, zipfi, + extrafield_local, size_extrafield_local, + extrafield_global, size_extrafield_global, + comment, method, level, raw, + -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY, + NULL, 0); +} + +extern int ZEXPORT zipOpenNewFileInZip (file, filename, zipfi, + extrafield_local, size_extrafield_local, + extrafield_global, size_extrafield_global, + comment, method, level) + zipFile file; + const char* filename; + const zip_fileinfo* zipfi; + const void* extrafield_local; + uInt size_extrafield_local; + const void* extrafield_global; + uInt size_extrafield_global; + const char* comment; + int method; + int level; +{ + return zipOpenNewFileInZip2 (file, filename, zipfi, + extrafield_local, size_extrafield_local, + extrafield_global, size_extrafield_global, + comment, method, level, 0); +} + +local int zipFlushWriteBuffer(zi) + zip_internal* zi; +{ + int err=ZIP_OK; + + if (zi->ci.encrypt != 0) + { +#ifndef NOCRYPT + uInt i; + int t; + for (i=0;ici.pos_in_buffered_data;i++) + zi->ci.buffered_data[i] = zencode(zi->ci.keys, zi->ci.pcrc_32_tab, + zi->ci.buffered_data[i],t); +#endif + } + if (ZWRITE(zi->z_filefunc,zi->filestream,zi->ci.buffered_data,zi->ci.pos_in_buffered_data) + !=zi->ci.pos_in_buffered_data) + err = ZIP_ERRNO; + zi->ci.pos_in_buffered_data = 0; + return err; +} + +extern int ZEXPORT zipWriteInFileInZip (file, buf, len) + zipFile file; + const void* buf; + unsigned len; +{ + zip_internal* zi; + int err=ZIP_OK; + + if (file == NULL) + return ZIP_PARAMERROR; + zi = (zip_internal*)file; + + if (zi->in_opened_file_inzip == 0) + return ZIP_PARAMERROR; + + zi->ci.stream.next_in = (void*)buf; + zi->ci.stream.avail_in = len; + zi->ci.crc32 = crc32(zi->ci.crc32,buf,len); + + while ((err==ZIP_OK) && (zi->ci.stream.avail_in>0)) + { + if (zi->ci.stream.avail_out == 0) + { + if (zipFlushWriteBuffer(zi) == ZIP_ERRNO) + err = ZIP_ERRNO; + zi->ci.stream.avail_out = (uInt)Z_BUFSIZE; + zi->ci.stream.next_out = zi->ci.buffered_data; + } + + + if(err != ZIP_OK) + break; + + if ((zi->ci.method == Z_DEFLATED) && (!zi->ci.raw)) + { + uLong uTotalOutBefore = zi->ci.stream.total_out; + err=deflate(&zi->ci.stream, Z_NO_FLUSH); + zi->ci.pos_in_buffered_data += (uInt)(zi->ci.stream.total_out - uTotalOutBefore) ; + + } + else + { + uInt copy_this,i; + if (zi->ci.stream.avail_in < zi->ci.stream.avail_out) + copy_this = zi->ci.stream.avail_in; + else + copy_this = zi->ci.stream.avail_out; + for (i=0;ici.stream.next_out)+i) = + *(((const char*)zi->ci.stream.next_in)+i); + { + zi->ci.stream.avail_in -= copy_this; + zi->ci.stream.avail_out-= copy_this; + zi->ci.stream.next_in+= copy_this; + zi->ci.stream.next_out+= copy_this; + zi->ci.stream.total_in+= copy_this; + zi->ci.stream.total_out+= copy_this; + zi->ci.pos_in_buffered_data += copy_this; + } + } + } + + return err; +} + +extern int ZEXPORT zipCloseFileInZipRaw (file, uncompressed_size, crc32) + zipFile file; + uLong uncompressed_size; + uLong crc32; +{ + zip_internal* zi; + uLong compressed_size; + int err=ZIP_OK; + + if (file == NULL) + return ZIP_PARAMERROR; + zi = (zip_internal*)file; + + if (zi->in_opened_file_inzip == 0) + return ZIP_PARAMERROR; + zi->ci.stream.avail_in = 0; + + if ((zi->ci.method == Z_DEFLATED) && (!zi->ci.raw)) + while (err==ZIP_OK) + { + uLong uTotalOutBefore; + if (zi->ci.stream.avail_out == 0) + { + if (zipFlushWriteBuffer(zi) == ZIP_ERRNO) + err = ZIP_ERRNO; + zi->ci.stream.avail_out = (uInt)Z_BUFSIZE; + zi->ci.stream.next_out = zi->ci.buffered_data; + } + uTotalOutBefore = zi->ci.stream.total_out; + err=deflate(&zi->ci.stream, Z_FINISH); + zi->ci.pos_in_buffered_data += (uInt)(zi->ci.stream.total_out - uTotalOutBefore) ; + } + + if (err==Z_STREAM_END) + err=ZIP_OK; /* this is normal */ + + if ((zi->ci.pos_in_buffered_data>0) && (err==ZIP_OK)) + if (zipFlushWriteBuffer(zi)==ZIP_ERRNO) + err = ZIP_ERRNO; + + if ((zi->ci.method == Z_DEFLATED) && (!zi->ci.raw)) + { + err=deflateEnd(&zi->ci.stream); + zi->ci.stream_initialised = 0; + } + + if (!zi->ci.raw) + { + crc32 = (uLong)zi->ci.crc32; + uncompressed_size = (uLong)zi->ci.stream.total_in; + } + compressed_size = (uLong)zi->ci.stream.total_out; +# ifndef NOCRYPT + compressed_size += zi->ci.crypt_header_size; +# endif + + ziplocal_putValue_inmemory(zi->ci.central_header+16,crc32,4); /*crc*/ + ziplocal_putValue_inmemory(zi->ci.central_header+20, + compressed_size,4); /*compr size*/ + if (zi->ci.stream.data_type == Z_ASCII) + ziplocal_putValue_inmemory(zi->ci.central_header+36,(uLong)Z_ASCII,2); + ziplocal_putValue_inmemory(zi->ci.central_header+24, + uncompressed_size,4); /*uncompr size*/ + + if (err==ZIP_OK) + err = add_data_in_datablock(&zi->central_dir,zi->ci.central_header, + (uLong)zi->ci.size_centralheader); + free(zi->ci.central_header); + + if (err==ZIP_OK) + { + long cur_pos_inzip = ZTELL(zi->z_filefunc,zi->filestream); + if (ZSEEK(zi->z_filefunc,zi->filestream, + zi->ci.pos_local_header + 14,ZLIB_FILEFUNC_SEEK_SET)!=0) + err = ZIP_ERRNO; + + if (err==ZIP_OK) + err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,crc32,4); /* crc 32, unknown */ + + if (err==ZIP_OK) /* compressed size, unknown */ + err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,compressed_size,4); + + if (err==ZIP_OK) /* uncompressed size, unknown */ + err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,uncompressed_size,4); + + if (ZSEEK(zi->z_filefunc,zi->filestream, + cur_pos_inzip,ZLIB_FILEFUNC_SEEK_SET)!=0) + err = ZIP_ERRNO; + } + + zi->number_entry ++; + zi->in_opened_file_inzip = 0; + + return err; +} + +extern int ZEXPORT zipCloseFileInZip (file) + zipFile file; +{ + return zipCloseFileInZipRaw (file,0,0); +} + +extern int ZEXPORT zipClose (file, global_comment) + zipFile file; + const char* global_comment; +{ + zip_internal* zi; + int err = 0; + uLong size_centraldir = 0; + uLong centraldir_pos_inzip ; + uInt size_global_comment; + if (file == NULL) + return ZIP_PARAMERROR; + zi = (zip_internal*)file; + + if (zi->in_opened_file_inzip == 1) + { + err = zipCloseFileInZip (file); + } + + if (global_comment==NULL) + size_global_comment = 0; + else + size_global_comment = (uInt)strlen(global_comment); + + + centraldir_pos_inzip = ZTELL(zi->z_filefunc,zi->filestream); + if (err==ZIP_OK) + { + linkedlist_datablock_internal* ldi = zi->central_dir.first_block ; + while (ldi!=NULL) + { + if ((err==ZIP_OK) && (ldi->filled_in_this_block>0)) + if (ZWRITE(zi->z_filefunc,zi->filestream, + ldi->data,ldi->filled_in_this_block) + !=ldi->filled_in_this_block ) + err = ZIP_ERRNO; + + size_centraldir += ldi->filled_in_this_block; + ldi = ldi->next_datablock; + } + } + free_datablock(zi->central_dir.first_block); + + if (err==ZIP_OK) /* Magic End */ + err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)ENDHEADERMAGIC,4); + + if (err==ZIP_OK) /* number of this disk */ + err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,2); + + if (err==ZIP_OK) /* number of the disk with the start of the central directory */ + err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,2); + + if (err==ZIP_OK) /* total number of entries in the central dir on this disk */ + err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->number_entry,2); + + if (err==ZIP_OK) /* total number of entries in the central dir */ + err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->number_entry,2); + + if (err==ZIP_OK) /* size of the central directory */ + err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_centraldir,4); + + if (err==ZIP_OK) /* offset of start of central directory with respect to the + starting disk number */ + err = ziplocal_putValue(&zi->z_filefunc,zi->filestream, + (uLong)(centraldir_pos_inzip - zi->add_position_when_writting_offset),4); + + if (err==ZIP_OK) /* zipfile comment length */ + err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_global_comment,2); + + if ((err==ZIP_OK) && (size_global_comment>0)) + if (ZWRITE(zi->z_filefunc,zi->filestream, + global_comment,size_global_comment) != size_global_comment) + err = ZIP_ERRNO; + + if (ZCLOSE(zi->z_filefunc,zi->filestream) != 0) + if (err == ZIP_OK) + err = ZIP_ERRNO; + + TRYFREE(zi); + + return err; +} diff --git a/cpukit/zlib/contrib/minizip/zip.h b/cpukit/zlib/contrib/minizip/zip.h new file mode 100644 index 0000000000..d5112c4dcb --- /dev/null +++ b/cpukit/zlib/contrib/minizip/zip.h @@ -0,0 +1,234 @@ +/* zip.h -- IO for compress .zip files using zlib + Version 1.01, May 8th, 2004 + + Copyright (C) 1998-2004 Gilles Vollant + + This unzip package allow creates .ZIP file, compatible with PKZip 2.04g + WinZip, InfoZip tools and compatible. + Encryption and multi volume ZipFile (span) are not supported. + Old compressions used by old PKZip 1.x are not supported + + For uncompress .zip file, look at unzip.h + + + I WAIT FEEDBACK at mail info@winimage.com + Visit also http://www.winimage.com/zLibDll/unzip.html for evolution + + Condition of use and distribution are the same than zlib : + + This software is provided 'as-is', without any express or implied + warranty. In no event will the authors be held liable for any damages + arising from the use of this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute it + freely, subject to the following restrictions: + + 1. The origin of this software must not be misrepresented; you must not + claim that you wrote the original software. If you use this software + in a product, an acknowledgment in the product documentation would be + appreciated but is not required. + 2. Altered source versions must be plainly marked as such, and must not be + misrepresented as being the original software. + 3. This notice may not be removed or altered from any source distribution. + + +*/ + +/* for more info about .ZIP format, see + http://www.info-zip.org/pub/infozip/doc/appnote-981119-iz.zip + http://www.info-zip.org/pub/infozip/doc/ + PkWare has also a specification at : + ftp://ftp.pkware.com/probdesc.zip +*/ + +#ifndef _zip_H +#define _zip_H + +#ifdef __cplusplus +extern "C" { +#endif + +#ifndef _ZLIB_H +#include "zlib.h" +#endif + +#ifndef _ZLIBIOAPI_H +#include "ioapi.h" +#endif + +#if defined(STRICTZIP) || defined(STRICTZIPUNZIP) +/* like the STRICT of WIN32, we define a pointer that cannot be converted + from (void*) without cast */ +typedef struct TagzipFile__ { int unused; } zipFile__; +typedef zipFile__ *zipFile; +#else +typedef voidp zipFile; +#endif + +#define ZIP_OK (0) +#define ZIP_EOF (0) +#define ZIP_ERRNO (Z_ERRNO) +#define ZIP_PARAMERROR (-102) +#define ZIP_BADZIPFILE (-103) +#define ZIP_INTERNALERROR (-104) + +#ifndef DEF_MEM_LEVEL +# if MAX_MEM_LEVEL >= 8 +# define DEF_MEM_LEVEL 8 +# else +# define DEF_MEM_LEVEL MAX_MEM_LEVEL +# endif +#endif +/* default memLevel */ + +/* tm_zip contain date/time info */ +typedef struct tm_zip_s +{ + uInt tm_sec; /* seconds after the minute - [0,59] */ + uInt tm_min; /* minutes after the hour - [0,59] */ + uInt tm_hour; /* hours since midnight - [0,23] */ + uInt tm_mday; /* day of the month - [1,31] */ + uInt tm_mon; /* months since January - [0,11] */ + uInt tm_year; /* years - [1980..2044] */ +} tm_zip; + +typedef struct +{ + tm_zip tmz_date; /* date in understandable format */ + uLong dosDate; /* if dos_date == 0, tmu_date is used */ +/* uLong flag; */ /* general purpose bit flag 2 bytes */ + + uLong internal_fa; /* internal file attributes 2 bytes */ + uLong external_fa; /* external file attributes 4 bytes */ +} zip_fileinfo; + +typedef const char* zipcharpc; + + +#define APPEND_STATUS_CREATE (0) +#define APPEND_STATUS_CREATEAFTER (1) +#define APPEND_STATUS_ADDINZIP (2) + +extern zipFile ZEXPORT zipOpen OF((const char *pathname, int append)); +/* + Create a zipfile. + pathname contain on Windows XP a filename like "c:\\zlib\\zlib113.zip" or on + an Unix computer "zlib/zlib113.zip". + if the file pathname exist and append==APPEND_STATUS_CREATEAFTER, the zip + will be created at the end of the file. + (useful if the file contain a self extractor code) + if the file pathname exist and append==APPEND_STATUS_ADDINZIP, we will + add files in existing zip (be sure you don't add file that doesn't exist) + If the zipfile cannot be opened, the return value is NULL. + Else, the return value is a zipFile Handle, usable with other function + of this zip package. +*/ + +/* Note : there is no delete function into a zipfile. + If you want delete file into a zipfile, you must open a zipfile, and create another + Of couse, you can use RAW reading and writing to copy the file you did not want delte +*/ + +extern zipFile ZEXPORT zipOpen2 OF((const char *pathname, + int append, + zipcharpc* globalcomment, + zlib_filefunc_def* pzlib_filefunc_def)); + +extern int ZEXPORT zipOpenNewFileInZip OF((zipFile file, + const char* filename, + const zip_fileinfo* zipfi, + const void* extrafield_local, + uInt size_extrafield_local, + const void* extrafield_global, + uInt size_extrafield_global, + const char* comment, + int method, + int level)); +/* + Open a file in the ZIP for writing. + filename : the filename in zip (if NULL, '-' without quote will be used + *zipfi contain supplemental information + if extrafield_local!=NULL and size_extrafield_local>0, extrafield_local + contains the extrafield data the the local header + if extrafield_global!=NULL and size_extrafield_global>0, extrafield_global + contains the extrafield data the the local header + if comment != NULL, comment contain the comment string + method contain the compression method (0 for store, Z_DEFLATED for deflate) + level contain the level of compression (can be Z_DEFAULT_COMPRESSION) +*/ + + +extern int ZEXPORT zipOpenNewFileInZip2 OF((zipFile file, + const char* filename, + const zip_fileinfo* zipfi, + const void* extrafield_local, + uInt size_extrafield_local, + const void* extrafield_global, + uInt size_extrafield_global, + const char* comment, + int method, + int level, + int raw)); + +/* + Same than zipOpenNewFileInZip, except if raw=1, we write raw file + */ + +extern int ZEXPORT zipOpenNewFileInZip3 OF((zipFile file, + const char* filename, + const zip_fileinfo* zipfi, + const void* extrafield_local, + uInt size_extrafield_local, + const void* extrafield_global, + uInt size_extrafield_global, + const char* comment, + int method, + int level, + int raw, + int windowBits, + int memLevel, + int strategy, + const char* password, + uLong crcForCtypting)); + +/* + Same than zipOpenNewFileInZip2, except + windowBits,memLevel,,strategy : see parameter strategy in deflateInit2 + password : crypting password (NULL for no crypting) + crcForCtypting : crc of file to compress (needed for crypting) + */ + + +extern int ZEXPORT zipWriteInFileInZip OF((zipFile file, + const void* buf, + unsigned len)); +/* + Write data in the zipfile +*/ + +extern int ZEXPORT zipCloseFileInZip OF((zipFile file)); +/* + Close the current file in the zipfile +*/ + +extern int ZEXPORT zipCloseFileInZipRaw OF((zipFile file, + uLong uncompressed_size, + uLong crc32)); +/* + Close the current file in the zipfile, for fiel opened with + parameter raw=1 in zipOpenNewFileInZip2 + uncompressed_size and crc32 are value for the uncompressed size +*/ + +extern int ZEXPORT zipClose OF((zipFile file, + const char* global_comment)); +/* + Close the zipfile +*/ + +#ifdef __cplusplus +} +#endif + +#endif /* _zip_H */ diff --git a/cpukit/zlib/contrib/pascal/example.pas b/cpukit/zlib/contrib/pascal/example.pas new file mode 100644 index 0000000000..5518b36a73 --- /dev/null +++ b/cpukit/zlib/contrib/pascal/example.pas @@ -0,0 +1,599 @@ +(* example.c -- usage example of the zlib compression library + * Copyright (C) 1995-2003 Jean-loup Gailly. + * For conditions of distribution and use, see copyright notice in zlib.h + * + * Pascal translation + * Copyright (C) 1998 by Jacques Nomssi Nzali. + * For conditions of distribution and use, see copyright notice in readme.txt + * + * Adaptation to the zlibpas interface + * Copyright (C) 2003 by Cosmin Truta. + * For conditions of distribution and use, see copyright notice in readme.txt + *) + +program example; + +{$DEFINE TEST_COMPRESS} +{DO NOT $DEFINE TEST_GZIO} +{$DEFINE TEST_DEFLATE} +{$DEFINE TEST_INFLATE} +{$DEFINE TEST_FLUSH} +{$DEFINE TEST_SYNC} +{$DEFINE TEST_DICT} + +uses SysUtils, zlibpas; + +const TESTFILE = 'foo.gz'; + +(* "hello world" would be more standard, but the repeated "hello" + * stresses the compression code better, sorry... + *) +const hello: PChar = 'hello, hello!'; + +const dictionary: PChar = 'hello'; + +var dictId: LongInt; (* Adler32 value of the dictionary *) + +procedure CHECK_ERR(err: Integer; msg: String); +begin + if err <> Z_OK then + begin + WriteLn(msg, ' error: ', err); + Halt(1); + end; +end; + +procedure EXIT_ERR(const msg: String); +begin + WriteLn('Error: ', msg); + Halt(1); +end; + +(* =========================================================================== + * Test compress and uncompress + *) +{$IFDEF TEST_COMPRESS} +procedure test_compress(compr: Pointer; comprLen: LongInt; + uncompr: Pointer; uncomprLen: LongInt); +var err: Integer; + len: LongInt; +begin + len := StrLen(hello)+1; + + err := compress(compr, comprLen, hello, len); + CHECK_ERR(err, 'compress'); + + StrCopy(PChar(uncompr), 'garbage'); + + err := uncompress(uncompr, uncomprLen, compr, comprLen); + CHECK_ERR(err, 'uncompress'); + + if StrComp(PChar(uncompr), hello) <> 0 then + EXIT_ERR('bad uncompress') + else + WriteLn('uncompress(): ', PChar(uncompr)); +end; +{$ENDIF} + +(* =========================================================================== + * Test read/write of .gz files + *) +{$IFDEF TEST_GZIO} +procedure test_gzio(const fname: PChar; (* compressed file name *) + uncompr: Pointer; + uncomprLen: LongInt); +var err: Integer; + len: Integer; + zfile: gzFile; + pos: LongInt; +begin + len := StrLen(hello)+1; + + zfile := gzopen(fname, 'wb'); + if zfile = NIL then + begin + WriteLn('gzopen error'); + Halt(1); + end; + gzputc(zfile, 'h'); + if gzputs(zfile, 'ello') <> 4 then + begin + WriteLn('gzputs err: ', gzerror(zfile, err)); + Halt(1); + end; + {$IFDEF GZ_FORMAT_STRING} + if gzprintf(zfile, ', %s!', 'hello') <> 8 then + begin + WriteLn('gzprintf err: ', gzerror(zfile, err)); + Halt(1); + end; + {$ELSE} + if gzputs(zfile, ', hello!') <> 8 then + begin + WriteLn('gzputs err: ', gzerror(zfile, err)); + Halt(1); + end; + {$ENDIF} + gzseek(zfile, 1, SEEK_CUR); (* add one zero byte *) + gzclose(zfile); + + zfile := gzopen(fname, 'rb'); + if zfile = NIL then + begin + WriteLn('gzopen error'); + Halt(1); + end; + + StrCopy(PChar(uncompr), 'garbage'); + + if gzread(zfile, uncompr, uncomprLen) <> len then + begin + WriteLn('gzread err: ', gzerror(zfile, err)); + Halt(1); + end; + if StrComp(PChar(uncompr), hello) <> 0 then + begin + WriteLn('bad gzread: ', PChar(uncompr)); + Halt(1); + end + else + WriteLn('gzread(): ', PChar(uncompr)); + + pos := gzseek(zfile, -8, SEEK_CUR); + if (pos <> 6) or (gztell(zfile) <> pos) then + begin + WriteLn('gzseek error, pos=', pos, ', gztell=', gztell(zfile)); + Halt(1); + end; + + if gzgetc(zfile) <> ' ' then + begin + WriteLn('gzgetc error'); + Halt(1); + end; + + if gzungetc(' ', zfile) <> ' ' then + begin + WriteLn('gzungetc error'); + Halt(1); + end; + + gzgets(zfile, PChar(uncompr), uncomprLen); + uncomprLen := StrLen(PChar(uncompr)); + if uncomprLen <> 7 then (* " hello!" *) + begin + WriteLn('gzgets err after gzseek: ', gzerror(zfile, err)); + Halt(1); + end; + if StrComp(PChar(uncompr), hello + 6) <> 0 then + begin + WriteLn('bad gzgets after gzseek'); + Halt(1); + end + else + WriteLn('gzgets() after gzseek: ', PChar(uncompr)); + + gzclose(zfile); +end; +{$ENDIF} + +(* =========================================================================== + * Test deflate with small buffers + *) +{$IFDEF TEST_DEFLATE} +procedure test_deflate(compr: Pointer; comprLen: LongInt); +var c_stream: z_stream; (* compression stream *) + err: Integer; + len: LongInt; +begin + len := StrLen(hello)+1; + + c_stream.zalloc := NIL; + c_stream.zfree := NIL; + c_stream.opaque := NIL; + + err := deflateInit(c_stream, Z_DEFAULT_COMPRESSION); + CHECK_ERR(err, 'deflateInit'); + + c_stream.next_in := hello; + c_stream.next_out := compr; + + while (c_stream.total_in <> len) and + (c_stream.total_out < comprLen) do + begin + c_stream.avail_out := 1; { force small buffers } + c_stream.avail_in := 1; + err := deflate(c_stream, Z_NO_FLUSH); + CHECK_ERR(err, 'deflate'); + end; + + (* Finish the stream, still forcing small buffers: *) + while TRUE do + begin + c_stream.avail_out := 1; + err := deflate(c_stream, Z_FINISH); + if err = Z_STREAM_END then + break; + CHECK_ERR(err, 'deflate'); + end; + + err := deflateEnd(c_stream); + CHECK_ERR(err, 'deflateEnd'); +end; +{$ENDIF} + +(* =========================================================================== + * Test inflate with small buffers + *) +{$IFDEF TEST_INFLATE} +procedure test_inflate(compr: Pointer; comprLen : LongInt; + uncompr: Pointer; uncomprLen : LongInt); +var err: Integer; + d_stream: z_stream; (* decompression stream *) +begin + StrCopy(PChar(uncompr), 'garbage'); + + d_stream.zalloc := NIL; + d_stream.zfree := NIL; + d_stream.opaque := NIL; + + d_stream.next_in := compr; + d_stream.avail_in := 0; + d_stream.next_out := uncompr; + + err := inflateInit(d_stream); + CHECK_ERR(err, 'inflateInit'); + + while (d_stream.total_out < uncomprLen) and + (d_stream.total_in < comprLen) do + begin + d_stream.avail_out := 1; (* force small buffers *) + d_stream.avail_in := 1; + err := inflate(d_stream, Z_NO_FLUSH); + if err = Z_STREAM_END then + break; + CHECK_ERR(err, 'inflate'); + end; + + err := inflateEnd(d_stream); + CHECK_ERR(err, 'inflateEnd'); + + if StrComp(PChar(uncompr), hello) <> 0 then + EXIT_ERR('bad inflate') + else + WriteLn('inflate(): ', PChar(uncompr)); +end; +{$ENDIF} + +(* =========================================================================== + * Test deflate with large buffers and dynamic change of compression level + *) +{$IFDEF TEST_DEFLATE} +procedure test_large_deflate(compr: Pointer; comprLen: LongInt; + uncompr: Pointer; uncomprLen: LongInt); +var c_stream: z_stream; (* compression stream *) + err: Integer; +begin + c_stream.zalloc := NIL; + c_stream.zfree := NIL; + c_stream.opaque := NIL; + + err := deflateInit(c_stream, Z_BEST_SPEED); + CHECK_ERR(err, 'deflateInit'); + + c_stream.next_out := compr; + c_stream.avail_out := Integer(comprLen); + + (* At this point, uncompr is still mostly zeroes, so it should compress + * very well: + *) + c_stream.next_in := uncompr; + c_stream.avail_in := Integer(uncomprLen); + err := deflate(c_stream, Z_NO_FLUSH); + CHECK_ERR(err, 'deflate'); + if c_stream.avail_in <> 0 then + EXIT_ERR('deflate not greedy'); + + (* Feed in already compressed data and switch to no compression: *) + deflateParams(c_stream, Z_NO_COMPRESSION, Z_DEFAULT_STRATEGY); + c_stream.next_in := compr; + c_stream.avail_in := Integer(comprLen div 2); + err := deflate(c_stream, Z_NO_FLUSH); + CHECK_ERR(err, 'deflate'); + + (* Switch back to compressing mode: *) + deflateParams(c_stream, Z_BEST_COMPRESSION, Z_FILTERED); + c_stream.next_in := uncompr; + c_stream.avail_in := Integer(uncomprLen); + err := deflate(c_stream, Z_NO_FLUSH); + CHECK_ERR(err, 'deflate'); + + err := deflate(c_stream, Z_FINISH); + if err <> Z_STREAM_END then + EXIT_ERR('deflate should report Z_STREAM_END'); + + err := deflateEnd(c_stream); + CHECK_ERR(err, 'deflateEnd'); +end; +{$ENDIF} + +(* =========================================================================== + * Test inflate with large buffers + *) +{$IFDEF TEST_INFLATE} +procedure test_large_inflate(compr: Pointer; comprLen: LongInt; + uncompr: Pointer; uncomprLen: LongInt); +var err: Integer; + d_stream: z_stream; (* decompression stream *) +begin + StrCopy(PChar(uncompr), 'garbage'); + + d_stream.zalloc := NIL; + d_stream.zfree := NIL; + d_stream.opaque := NIL; + + d_stream.next_in := compr; + d_stream.avail_in := Integer(comprLen); + + err := inflateInit(d_stream); + CHECK_ERR(err, 'inflateInit'); + + while TRUE do + begin + d_stream.next_out := uncompr; (* discard the output *) + d_stream.avail_out := Integer(uncomprLen); + err := inflate(d_stream, Z_NO_FLUSH); + if err = Z_STREAM_END then + break; + CHECK_ERR(err, 'large inflate'); + end; + + err := inflateEnd(d_stream); + CHECK_ERR(err, 'inflateEnd'); + + if d_stream.total_out <> 2 * uncomprLen + comprLen div 2 then + begin + WriteLn('bad large inflate: ', d_stream.total_out); + Halt(1); + end + else + WriteLn('large_inflate(): OK'); +end; +{$ENDIF} + +(* =========================================================================== + * Test deflate with full flush + *) +{$IFDEF TEST_FLUSH} +procedure test_flush(compr: Pointer; var comprLen : LongInt); +var c_stream: z_stream; (* compression stream *) + err: Integer; + len: Integer; +begin + len := StrLen(hello)+1; + + c_stream.zalloc := NIL; + c_stream.zfree := NIL; + c_stream.opaque := NIL; + + err := deflateInit(c_stream, Z_DEFAULT_COMPRESSION); + CHECK_ERR(err, 'deflateInit'); + + c_stream.next_in := hello; + c_stream.next_out := compr; + c_stream.avail_in := 3; + c_stream.avail_out := Integer(comprLen); + err := deflate(c_stream, Z_FULL_FLUSH); + CHECK_ERR(err, 'deflate'); + + Inc(PByteArray(compr)^[3]); (* force an error in first compressed block *) + c_stream.avail_in := len - 3; + + err := deflate(c_stream, Z_FINISH); + if err <> Z_STREAM_END then + CHECK_ERR(err, 'deflate'); + + err := deflateEnd(c_stream); + CHECK_ERR(err, 'deflateEnd'); + + comprLen := c_stream.total_out; +end; +{$ENDIF} + +(* =========================================================================== + * Test inflateSync() + *) +{$IFDEF TEST_SYNC} +procedure test_sync(compr: Pointer; comprLen: LongInt; + uncompr: Pointer; uncomprLen : LongInt); +var err: Integer; + d_stream: z_stream; (* decompression stream *) +begin + StrCopy(PChar(uncompr), 'garbage'); + + d_stream.zalloc := NIL; + d_stream.zfree := NIL; + d_stream.opaque := NIL; + + d_stream.next_in := compr; + d_stream.avail_in := 2; (* just read the zlib header *) + + err := inflateInit(d_stream); + CHECK_ERR(err, 'inflateInit'); + + d_stream.next_out := uncompr; + d_stream.avail_out := Integer(uncomprLen); + + inflate(d_stream, Z_NO_FLUSH); + CHECK_ERR(err, 'inflate'); + + d_stream.avail_in := Integer(comprLen-2); (* read all compressed data *) + err := inflateSync(d_stream); (* but skip the damaged part *) + CHECK_ERR(err, 'inflateSync'); + + err := inflate(d_stream, Z_FINISH); + if err <> Z_DATA_ERROR then + EXIT_ERR('inflate should report DATA_ERROR'); + (* Because of incorrect adler32 *) + + err := inflateEnd(d_stream); + CHECK_ERR(err, 'inflateEnd'); + + WriteLn('after inflateSync(): hel', PChar(uncompr)); +end; +{$ENDIF} + +(* =========================================================================== + * Test deflate with preset dictionary + *) +{$IFDEF TEST_DICT} +procedure test_dict_deflate(compr: Pointer; comprLen: LongInt); +var c_stream: z_stream; (* compression stream *) + err: Integer; +begin + c_stream.zalloc := NIL; + c_stream.zfree := NIL; + c_stream.opaque := NIL; + + err := deflateInit(c_stream, Z_BEST_COMPRESSION); + CHECK_ERR(err, 'deflateInit'); + + err := deflateSetDictionary(c_stream, dictionary, StrLen(dictionary)); + CHECK_ERR(err, 'deflateSetDictionary'); + + dictId := c_stream.adler; + c_stream.next_out := compr; + c_stream.avail_out := Integer(comprLen); + + c_stream.next_in := hello; + c_stream.avail_in := StrLen(hello)+1; + + err := deflate(c_stream, Z_FINISH); + if err <> Z_STREAM_END then + EXIT_ERR('deflate should report Z_STREAM_END'); + + err := deflateEnd(c_stream); + CHECK_ERR(err, 'deflateEnd'); +end; +{$ENDIF} + +(* =========================================================================== + * Test inflate with a preset dictionary + *) +{$IFDEF TEST_DICT} +procedure test_dict_inflate(compr: Pointer; comprLen: LongInt; + uncompr: Pointer; uncomprLen: LongInt); +var err: Integer; + d_stream: z_stream; (* decompression stream *) +begin + StrCopy(PChar(uncompr), 'garbage'); + + d_stream.zalloc := NIL; + d_stream.zfree := NIL; + d_stream.opaque := NIL; + + d_stream.next_in := compr; + d_stream.avail_in := Integer(comprLen); + + err := inflateInit(d_stream); + CHECK_ERR(err, 'inflateInit'); + + d_stream.next_out := uncompr; + d_stream.avail_out := Integer(uncomprLen); + + while TRUE do + begin + err := inflate(d_stream, Z_NO_FLUSH); + if err = Z_STREAM_END then + break; + if err = Z_NEED_DICT then + begin + if d_stream.adler <> dictId then + EXIT_ERR('unexpected dictionary'); + err := inflateSetDictionary(d_stream, dictionary, StrLen(dictionary)); + end; + CHECK_ERR(err, 'inflate with dict'); + end; + + err := inflateEnd(d_stream); + CHECK_ERR(err, 'inflateEnd'); + + if StrComp(PChar(uncompr), hello) <> 0 then + EXIT_ERR('bad inflate with dict') + else + WriteLn('inflate with dictionary: ', PChar(uncompr)); +end; +{$ENDIF} + +var compr, uncompr: Pointer; + comprLen, uncomprLen: LongInt; + +begin + if zlibVersion^ <> ZLIB_VERSION[1] then + EXIT_ERR('Incompatible zlib version'); + + WriteLn('zlib version: ', zlibVersion); + WriteLn('zlib compile flags: ', Format('0x%x', [zlibCompileFlags])); + + comprLen := 10000 * SizeOf(Integer); (* don't overflow on MSDOS *) + uncomprLen := comprLen; + GetMem(compr, comprLen); + GetMem(uncompr, uncomprLen); + if (compr = NIL) or (uncompr = NIL) then + EXIT_ERR('Out of memory'); + (* compr and uncompr are cleared to avoid reading uninitialized + * data and to ensure that uncompr compresses well. + *) + FillChar(compr^, comprLen, 0); + FillChar(uncompr^, uncomprLen, 0); + + {$IFDEF TEST_COMPRESS} + WriteLn('** Testing compress'); + test_compress(compr, comprLen, uncompr, uncomprLen); + {$ENDIF} + + {$IFDEF TEST_GZIO} + WriteLn('** Testing gzio'); + if ParamCount >= 1 then + test_gzio(ParamStr(1), uncompr, uncomprLen) + else + test_gzio(TESTFILE, uncompr, uncomprLen); + {$ENDIF} + + {$IFDEF TEST_DEFLATE} + WriteLn('** Testing deflate with small buffers'); + test_deflate(compr, comprLen); + {$ENDIF} + {$IFDEF TEST_INFLATE} + WriteLn('** Testing inflate with small buffers'); + test_inflate(compr, comprLen, uncompr, uncomprLen); + {$ENDIF} + + {$IFDEF TEST_DEFLATE} + WriteLn('** Testing deflate with large buffers'); + test_large_deflate(compr, comprLen, uncompr, uncomprLen); + {$ENDIF} + {$IFDEF TEST_INFLATE} + WriteLn('** Testing inflate with large buffers'); + test_large_inflate(compr, comprLen, uncompr, uncomprLen); + {$ENDIF} + + {$IFDEF TEST_FLUSH} + WriteLn('** Testing deflate with full flush'); + test_flush(compr, comprLen); + {$ENDIF} + {$IFDEF TEST_SYNC} + WriteLn('** Testing inflateSync'); + test_sync(compr, comprLen, uncompr, uncomprLen); + {$ENDIF} + comprLen := uncomprLen; + + {$IFDEF TEST_DICT} + WriteLn('** Testing deflate and inflate with preset dictionary'); + test_dict_deflate(compr, comprLen); + test_dict_inflate(compr, comprLen, uncompr, uncomprLen); + {$ENDIF} + + FreeMem(compr, comprLen); + FreeMem(uncompr, uncomprLen); +end. diff --git a/cpukit/zlib/contrib/pascal/readme.txt b/cpukit/zlib/contrib/pascal/readme.txt new file mode 100644 index 0000000000..60e87c8a33 --- /dev/null +++ b/cpukit/zlib/contrib/pascal/readme.txt @@ -0,0 +1,76 @@ + +This directory contains a Pascal (Delphi, Kylix) interface to the +zlib data compression library. + + +Directory listing +================= + +zlibd32.mak makefile for Borland C++ +example.pas usage example of zlib +zlibpas.pas the Pascal interface to zlib +readme.txt this file + + +Compatibility notes +=================== + +- Although the name "zlib" would have been more normal for the + zlibpas unit, this name is already taken by Borland's ZLib unit. + This is somehow unfortunate, because that unit is not a genuine + interface to the full-fledged zlib functionality, but a suite of + class wrappers around zlib streams. Other essential features, + such as checksums, are missing. + It would have been more appropriate for that unit to have a name + like "ZStreams", or something similar. + +- The C and zlib-supplied types int, uInt, long, uLong, etc. are + translated directly into Pascal types of similar sizes (Integer, + LongInt, etc.), to avoid namespace pollution. In particular, + there is no conversion of unsigned int into a Pascal unsigned + integer. The Word type is non-portable and has the same size + (16 bits) both in a 16-bit and in a 32-bit environment, unlike + Integer. Even if there is a 32-bit Cardinal type, there is no + real need for unsigned int in zlib under a 32-bit environment. + +- Except for the callbacks, the zlib function interfaces are + assuming the calling convention normally used in Pascal + (__pascal for DOS and Windows16, __fastcall for Windows32). + Since the cdecl keyword is used, the old Turbo Pascal does + not work with this interface. + +- The gz* function interfaces are not translated, to avoid + interfacing problems with the C runtime library. Besides, + gzprintf(gzFile file, const char *format, ...) + cannot be translated into Pascal. + + +Legal issues +============ + +The zlibpas interface is: + Copyright (C) 1995-2003 Jean-loup Gailly and Mark Adler. + Copyright (C) 1998 by Bob Dellaca. + Copyright (C) 2003 by Cosmin Truta. + +The example program is: + Copyright (C) 1995-2003 by Jean-loup Gailly. + Copyright (C) 1998,1999,2000 by Jacques Nomssi Nzali. + Copyright (C) 2003 by Cosmin Truta. + + This software is provided 'as-is', without any express or implied + warranty. In no event will the author be held liable for any damages + arising from the use of this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute it + freely, subject to the following restrictions: + + 1. The origin of this software must not be misrepresented; you must not + claim that you wrote the original software. If you use this software + in a product, an acknowledgment in the product documentation would be + appreciated but is not required. + 2. Altered source versions must be plainly marked as such, and must not be + misrepresented as being the original software. + 3. This notice may not be removed or altered from any source distribution. + diff --git a/cpukit/zlib/contrib/pascal/zlibd32.mak b/cpukit/zlib/contrib/pascal/zlibd32.mak new file mode 100644 index 0000000000..88fafa0b14 --- /dev/null +++ b/cpukit/zlib/contrib/pascal/zlibd32.mak @@ -0,0 +1,93 @@ +# Makefile for zlib +# For use with Delphi and C++ Builder under Win32 +# Updated for zlib 1.2.x by Cosmin Truta + +# ------------ Borland C++ ------------ + +# This project uses the Delphi (fastcall/register) calling convention: +LOC = -DZEXPORT=__fastcall -DZEXPORTVA=__cdecl + +CC = bcc32 +LD = bcc32 +AR = tlib +# do not use "-pr" in CFLAGS +CFLAGS = -a -d -k- -O2 $(LOC) +LDFLAGS = + + +# variables +ZLIB_LIB = zlib.lib + +OBJ1 = adler32.obj compress.obj crc32.obj deflate.obj gzio.obj infback.obj +OBJ2 = inffast.obj inflate.obj inftrees.obj trees.obj uncompr.obj zutil.obj +OBJP1 = +adler32.obj+compress.obj+crc32.obj+deflate.obj+gzio.obj+infback.obj +OBJP2 = +inffast.obj+inflate.obj+inftrees.obj+trees.obj+uncompr.obj+zutil.obj + + +# targets +all: $(ZLIB_LIB) example.exe minigzip.exe + +.c.obj: + $(CC) -c $(CFLAGS) $*.c + +adler32.obj: adler32.c zlib.h zconf.h + +compress.obj: compress.c zlib.h zconf.h + +crc32.obj: crc32.c zlib.h zconf.h crc32.h + +deflate.obj: deflate.c deflate.h zutil.h zlib.h zconf.h + +gzio.obj: gzio.c zutil.h zlib.h zconf.h + +infback.obj: infback.c zutil.h zlib.h zconf.h inftrees.h inflate.h \ + inffast.h inffixed.h + +inffast.obj: inffast.c zutil.h zlib.h zconf.h inftrees.h inflate.h \ + inffast.h + +inflate.obj: inflate.c zutil.h zlib.h zconf.h inftrees.h inflate.h \ + inffast.h inffixed.h + +inftrees.obj: inftrees.c zutil.h zlib.h zconf.h inftrees.h + +trees.obj: trees.c zutil.h zlib.h zconf.h deflate.h trees.h + +uncompr.obj: uncompr.c zlib.h zconf.h + +zutil.obj: zutil.c zutil.h zlib.h zconf.h + +example.obj: example.c zlib.h zconf.h + +minigzip.obj: minigzip.c zlib.h zconf.h + + +# For the sake of the old Borland make, +# the command line is cut to fit in the MS-DOS 128 byte limit: +$(ZLIB_LIB): $(OBJ1) $(OBJ2) + -del $(ZLIB_LIB) + $(AR) $(ZLIB_LIB) $(OBJP1) + $(AR) $(ZLIB_LIB) $(OBJP2) + + +# testing +test: example.exe minigzip.exe + example + echo hello world | minigzip | minigzip -d + +example.exe: example.obj $(ZLIB_LIB) + $(LD) $(LDFLAGS) example.obj $(ZLIB_LIB) + +minigzip.exe: minigzip.obj $(ZLIB_LIB) + $(LD) $(LDFLAGS) minigzip.obj $(ZLIB_LIB) + + +# cleanup +clean: + -del *.obj + -del *.exe + -del *.lib + -del *.tds + -del zlib.bak + -del foo.gz + diff --git a/cpukit/zlib/contrib/pascal/zlibpas.pas b/cpukit/zlib/contrib/pascal/zlibpas.pas new file mode 100644 index 0000000000..94103d2364 --- /dev/null +++ b/cpukit/zlib/contrib/pascal/zlibpas.pas @@ -0,0 +1,236 @@ +(* zlibpas -- Pascal interface to the zlib data compression library + * + * Copyright (C) 2003 Cosmin Truta. + * Derived from original sources by Bob Dellaca. + * For conditions of distribution and use, see copyright notice in readme.txt + *) + +unit zlibpas; + +interface + +const + ZLIB_VERSION = '1.2.2'; + +type + alloc_func = function(opaque: Pointer; items, size: Integer): Pointer; + cdecl; + free_func = procedure(opaque, address: Pointer); + cdecl; + + in_func = function(opaque: Pointer; var buf: PByte): Integer; + cdecl; + out_func = function(opaque: Pointer; buf: PByte; size: Integer): Integer; + cdecl; + + z_streamp = ^z_stream; + z_stream = packed record + next_in: PChar; (* next input byte *) + avail_in: Integer; (* number of bytes available at next_in *) + total_in: LongInt; (* total nb of input bytes read so far *) + + next_out: PChar; (* next output byte should be put there *) + avail_out: Integer; (* remaining free space at next_out *) + total_out: LongInt; (* total nb of bytes output so far *) + + msg: PChar; (* last error message, NULL if no error *) + state: Pointer; (* not visible by applications *) + + zalloc: alloc_func; (* used to allocate the internal state *) + zfree: free_func; (* used to free the internal state *) + opaque: Pointer; (* private data object passed to zalloc and zfree *) + + data_type: Integer; (* best guess about the data type: ascii or binary *) + adler: LongInt; (* adler32 value of the uncompressed data *) + reserved: LongInt; (* reserved for future use *) + end; + +(* constants *) +const + Z_NO_FLUSH = 0; + Z_PARTIAL_FLUSH = 1; + Z_SYNC_FLUSH = 2; + Z_FULL_FLUSH = 3; + Z_FINISH = 4; + + Z_OK = 0; + Z_STREAM_END = 1; + Z_NEED_DICT = 2; + Z_ERRNO = -1; + Z_STREAM_ERROR = -2; + Z_DATA_ERROR = -3; + Z_MEM_ERROR = -4; + Z_BUF_ERROR = -5; + Z_VERSION_ERROR = -6; + + Z_NO_COMPRESSION = 0; + Z_BEST_SPEED = 1; + Z_BEST_COMPRESSION = 9; + Z_DEFAULT_COMPRESSION = -1; + + Z_FILTERED = 1; + Z_HUFFMAN_ONLY = 2; + Z_RLE = 3; + Z_DEFAULT_STRATEGY = 0; + + Z_BINARY = 0; + Z_ASCII = 1; + Z_UNKNOWN = 2; + + Z_DEFLATED = 8; + +(* basic functions *) +function zlibVersion: PChar; +function deflateInit(var strm: z_stream; level: Integer): Integer; +function deflate(var strm: z_stream; flush: Integer): Integer; +function deflateEnd(var strm: z_stream): Integer; +function inflateInit(var strm: z_stream): Integer; +function inflate(var strm: z_stream; flush: Integer): Integer; +function inflateEnd(var strm: z_stream): Integer; + +(* advanced functions *) +function deflateInit2(var strm: z_stream; level, method, windowBits, + memLevel, strategy: Integer): Integer; +function deflateSetDictionary(var strm: z_stream; const dictionary: PChar; + dictLength: Integer): Integer; +function deflateCopy(var dest, source: z_stream): Integer; +function deflateReset(var strm: z_stream): Integer; +function deflateParams(var strm: z_stream; level, strategy: Integer): Integer; +function deflateBound(var strm: z_stream; sourceLen: LongInt): LongInt; +function deflatePrime(var strm: z_stream; bits, value: Integer): Integer; +function inflateInit2(var strm: z_stream; windowBits: Integer): Integer; +function inflateSetDictionary(var strm: z_stream; const dictionary: PChar; + dictLength: Integer): Integer; +function inflateSync(var strm: z_stream): Integer; +function inflateCopy(var dest, source: z_stream): Integer; +function inflateReset(var strm: z_stream): Integer; +function inflateBackInit(var strm: z_stream; + windowBits: Integer; window: PChar): Integer; +function inflateBack(var strm: z_stream; in_fn: in_func; in_desc: Pointer; + out_fn: out_func; out_desc: Pointer): Integer; +function inflateBackEnd(var strm: z_stream): Integer; +function zlibCompileFlags: LongInt; + +(* utility functions *) +function compress(dest: PChar; var destLen: LongInt; + const source: PChar; sourceLen: LongInt): Integer; +function compress2(dest: PChar; var destLen: LongInt; + const source: PChar; sourceLen: LongInt; + level: Integer): Integer; +function compressBound(sourceLen: LongInt): LongInt; +function uncompress(dest: PChar; var destLen: LongInt; + const source: PChar; sourceLen: LongInt): Integer; + +(* checksum functions *) +function adler32(adler: LongInt; const buf: PChar; len: Integer): LongInt; +function crc32(crc: LongInt; const buf: PChar; len: Integer): LongInt; + +(* various hacks, don't look :) *) +function deflateInit_(var strm: z_stream; level: Integer; + const version: PChar; stream_size: Integer): Integer; +function inflateInit_(var strm: z_stream; const version: PChar; + stream_size: Integer): Integer; +function deflateInit2_(var strm: z_stream; + level, method, windowBits, memLevel, strategy: Integer; + const version: PChar; stream_size: Integer): Integer; +function inflateInit2_(var strm: z_stream; windowBits: Integer; + const version: PChar; stream_size: Integer): Integer; +function inflateBackInit_(var strm: z_stream; + windowBits: Integer; window: PChar; + const version: PChar; stream_size: Integer): Integer; + + +implementation + +{$L adler32.obj} +{$L compress.obj} +{$L crc32.obj} +{$L deflate.obj} +{$L infback.obj} +{$L inffast.obj} +{$L inflate.obj} +{$L inftrees.obj} +{$L trees.obj} +{$L uncompr.obj} +{$L zutil.obj} + +function adler32; external; +function compress; external; +function compress2; external; +function compressBound; external; +function crc32; external; +function deflate; external; +function deflateBound; external; +function deflateCopy; external; +function deflateEnd; external; +function deflateInit_; external; +function deflateInit2_; external; +function deflateParams; external; +function deflatePrime; external; +function deflateReset; external; +function deflateSetDictionary; external; +function inflate; external; +function inflateBack; external; +function inflateBackEnd; external; +function inflateBackInit_; external; +function inflateCopy; external; +function inflateEnd; external; +function inflateInit_; external; +function inflateInit2_; external; +function inflateReset; external; +function inflateSetDictionary; external; +function inflateSync; external; +function uncompress; external; +function zlibCompileFlags; external; +function zlibVersion; external; + +function deflateInit(var strm: z_stream; level: Integer): Integer; +begin + Result := deflateInit_(strm, level, ZLIB_VERSION, sizeof(z_stream)); +end; + +function deflateInit2(var strm: z_stream; level, method, windowBits, memLevel, + strategy: Integer): Integer; +begin + Result := deflateInit2_(strm, level, method, windowBits, memLevel, strategy, + ZLIB_VERSION, sizeof(z_stream)); +end; + +function inflateInit(var strm: z_stream): Integer; +begin + Result := inflateInit_(strm, ZLIB_VERSION, sizeof(z_stream)); +end; + +function inflateInit2(var strm: z_stream; windowBits: Integer): Integer; +begin + Result := inflateInit2_(strm, windowBits, ZLIB_VERSION, sizeof(z_stream)); +end; + +function inflateBackInit(var strm: z_stream; + windowBits: Integer; window: PChar): Integer; +begin + Result := inflateBackInit_(strm, windowBits, window, + ZLIB_VERSION, sizeof(z_stream)); +end; + +function _malloc(Size: Integer): Pointer; cdecl; +begin + GetMem(Result, Size); +end; + +procedure _free(Block: Pointer); cdecl; +begin + FreeMem(Block); +end; + +procedure _memset(P: Pointer; B: Byte; count: Integer); cdecl; +begin + FillChar(P^, count, B); +end; + +procedure _memcpy(dest, source: Pointer; count: Integer); cdecl; +begin + Move(source^, dest^, count); +end; + +end. diff --git a/cpukit/zlib/contrib/puff/Makefile b/cpukit/zlib/contrib/puff/Makefile new file mode 100644 index 0000000000..b6b69404c7 --- /dev/null +++ b/cpukit/zlib/contrib/puff/Makefile @@ -0,0 +1,8 @@ +puff: puff.c puff.h + cc -DTEST -o puff puff.c + +test: puff + puff zeros.raw + +clean: + rm -f puff puff.o diff --git a/cpukit/zlib/contrib/puff/README b/cpukit/zlib/contrib/puff/README new file mode 100644 index 0000000000..bbc4cb595e --- /dev/null +++ b/cpukit/zlib/contrib/puff/README @@ -0,0 +1,63 @@ +Puff -- A Simple Inflate +3 Mar 2003 +Mark Adler +madler@alumni.caltech.edu + +What this is -- + +puff.c provides the routine puff() to decompress the deflate data format. It +does so more slowly than zlib, but the code is about one-fifth the size of the +inflate code in zlib, and written to be very easy to read. + +Why I wrote this -- + +puff.c was written to document the deflate format unambiguously, by virtue of +being working C code. It is meant to supplement RFC 1951, which formally +describes the deflate format. I have received many questions on details of the +deflate format, and I hope that reading this code will answer those questions. +puff.c is heavily commented with details of the deflate format, especially +those little nooks and cranies of the format that might not be obvious from a +specification. + +puff.c may also be useful in applications where code size or memory usage is a +very limited resource, and speed is not as important. + +How to use it -- + +Well, most likely you should just be reading puff.c and using zlib for actual +applications, but if you must ... + +Include puff.h in your code, which provides this prototype: + +int puff(unsigned char *dest, /* pointer to destination pointer */ + unsigned long *destlen, /* amount of output space */ + unsigned char *source, /* pointer to source data pointer */ + unsigned long *sourcelen); /* amount of input available */ + +Then you can call puff() to decompress a deflate stream that is in memory in +its entirety at source, to a sufficiently sized block of memory for the +decompressed data at dest. puff() is the only external symbol in puff.c The +only C library functions that puff.c needs are setjmp() and longjmp(), which +are used to simplify error checking in the code to improve readabilty. puff.c +does no memory allocation, and uses less than 2K bytes off of the stack. + +If destlen is not enough space for the uncompressed data, then inflate will +return an error without writing more than destlen bytes. Note that this means +that in order to decompress the deflate data successfully, you need to know +the size of the uncompressed data ahead of time. + +If needed, puff() can determine the size of the uncompressed data with no +output space. This is done by passing dest equal to (unsigned char *)0. Then +the initial value of *destlen is ignored and *destlen is set to the length of +the uncompressed data. So if the size of the uncompressed data is not known, +then two passes of puff() can be used--first to determine the size, and second +to do the actual inflation after allocating the appropriate memory. Not +pretty, but it works. (This is one of the reasons you should be using zlib.) + +The deflate format is self-terminating. If the deflate stream does not end +in *sourcelen bytes, puff() will return an error without reading at or past +endsource. + +On return, *sourcelen is updated to the amount of input data consumed, and +*destlen is updated to the size of the uncompressed data. See the comments +in puff.c for the possible return codes for puff(). diff --git a/cpukit/zlib/contrib/puff/puff.c b/cpukit/zlib/contrib/puff/puff.c new file mode 100644 index 0000000000..ce0cc405e3 --- /dev/null +++ b/cpukit/zlib/contrib/puff/puff.c @@ -0,0 +1,837 @@ +/* + * puff.c + * Copyright (C) 2002-2004 Mark Adler + * For conditions of distribution and use, see copyright notice in puff.h + * version 1.8, 9 Jan 2004 + * + * puff.c is a simple inflate written to be an unambiguous way to specify the + * deflate format. It is not written for speed but rather simplicity. As a + * side benefit, this code might actually be useful when small code is more + * important than speed, such as bootstrap applications. For typical deflate + * data, zlib's inflate() is about four times as fast as puff(). zlib's + * inflate compiles to around 20K on my machine, whereas puff.c compiles to + * around 4K on my machine (a PowerPC using GNU cc). If the faster decode() + * function here is used, then puff() is only twice as slow as zlib's + * inflate(). + * + * All dynamically allocated memory comes from the stack. The stack required + * is less than 2K bytes. This code is compatible with 16-bit int's and + * assumes that long's are at least 32 bits. puff.c uses the short data type, + * assumed to be 16 bits, for arrays in order to to conserve memory. The code + * works whether integers are stored big endian or little endian. + * + * In the comments below are "Format notes" that describe the inflate process + * and document some of the less obvious aspects of the format. This source + * code is meant to supplement RFC 1951, which formally describes the deflate + * format: + * + * http://www.zlib.org/rfc-deflate.html + */ + +/* + * Change history: + * + * 1.0 10 Feb 2002 - First version + * 1.1 17 Feb 2002 - Clarifications of some comments and notes + * - Update puff() dest and source pointers on negative + * errors to facilitate debugging deflators + * - Remove longest from struct huffman -- not needed + * - Simplify offs[] index in construct() + * - Add input size and checking, using longjmp() to + * maintain easy readability + * - Use short data type for large arrays + * - Use pointers instead of long to specify source and + * destination sizes to avoid arbitrary 4 GB limits + * 1.2 17 Mar 2002 - Add faster version of decode(), doubles speed (!), + * but leave simple version for readabilty + * - Make sure invalid distances detected if pointers + * are 16 bits + * - Fix fixed codes table error + * - Provide a scanning mode for determining size of + * uncompressed data + * 1.3 20 Mar 2002 - Go back to lengths for puff() parameters [Jean-loup] + * - Add a puff.h file for the interface + * - Add braces in puff() for else do [Jean-loup] + * - Use indexes instead of pointers for readability + * 1.4 31 Mar 2002 - Simplify construct() code set check + * - Fix some comments + * - Add FIXLCODES #define + * 1.5 6 Apr 2002 - Minor comment fixes + * 1.6 7 Aug 2002 - Minor format changes + * 1.7 3 Mar 2003 - Added test code for distribution + * - Added zlib-like license + * 1.8 9 Jan 2004 - Added some comments on no distance codes case + */ + +#include /* for setjmp(), longjmp(), and jmp_buf */ +#include "puff.h" /* prototype for puff() */ + +#define local static /* for local function definitions */ +#define NIL ((unsigned char *)0) /* for no output option */ + +/* + * Maximums for allocations and loops. It is not useful to change these -- + * they are fixed by the deflate format. + */ +#define MAXBITS 15 /* maximum bits in a code */ +#define MAXLCODES 286 /* maximum number of literal/length codes */ +#define MAXDCODES 30 /* maximum number of distance codes */ +#define MAXCODES (MAXLCODES+MAXDCODES) /* maximum codes lengths to read */ +#define FIXLCODES 288 /* number of fixed literal/length codes */ + +/* input and output state */ +struct state { + /* output state */ + unsigned char *out; /* output buffer */ + unsigned long outlen; /* available space at out */ + unsigned long outcnt; /* bytes written to out so far */ + + /* input state */ + unsigned char *in; /* input buffer */ + unsigned long inlen; /* available input at in */ + unsigned long incnt; /* bytes read so far */ + int bitbuf; /* bit buffer */ + int bitcnt; /* number of bits in bit buffer */ + + /* input limit error return state for bits() and decode() */ + jmp_buf env; +}; + +/* + * Return need bits from the input stream. This always leaves less than + * eight bits in the buffer. bits() works properly for need == 0. + * + * Format notes: + * + * - Bits are stored in bytes from the least significant bit to the most + * significant bit. Therefore bits are dropped from the bottom of the bit + * buffer, using shift right, and new bytes are appended to the top of the + * bit buffer, using shift left. + */ +local int bits(struct state *s, int need) +{ + long val; /* bit accumulator (can use up to 20 bits) */ + + /* load at least need bits into val */ + val = s->bitbuf; + while (s->bitcnt < need) { + if (s->incnt == s->inlen) longjmp(s->env, 1); /* out of input */ + val |= (long)(s->in[s->incnt++]) << s->bitcnt; /* load eight bits */ + s->bitcnt += 8; + } + + /* drop need bits and update buffer, always zero to seven bits left */ + s->bitbuf = (int)(val >> need); + s->bitcnt -= need; + + /* return need bits, zeroing the bits above that */ + return (int)(val & ((1L << need) - 1)); +} + +/* + * Process a stored block. + * + * Format notes: + * + * - After the two-bit stored block type (00), the stored block length and + * stored bytes are byte-aligned for fast copying. Therefore any leftover + * bits in the byte that has the last bit of the type, as many as seven, are + * discarded. The value of the discarded bits are not defined and should not + * be checked against any expectation. + * + * - The second inverted copy of the stored block length does not have to be + * checked, but it's probably a good idea to do so anyway. + * + * - A stored block can have zero length. This is sometimes used to byte-align + * subsets of the compressed data for random access or partial recovery. + */ +local int stored(struct state *s) +{ + unsigned len; /* length of stored block */ + + /* discard leftover bits from current byte (assumes s->bitcnt < 8) */ + s->bitbuf = 0; + s->bitcnt = 0; + + /* get length and check against its one's complement */ + if (s->incnt + 4 > s->inlen) return 2; /* not enough input */ + len = s->in[s->incnt++]; + len |= s->in[s->incnt++] << 8; + if (s->in[s->incnt++] != (~len & 0xff) || + s->in[s->incnt++] != ((~len >> 8) & 0xff)) + return -2; /* didn't match complement! */ + + /* copy len bytes from in to out */ + if (s->incnt + len > s->inlen) return 2; /* not enough input */ + if (s->out != NIL) { + if (s->outcnt + len > s->outlen) + return 1; /* not enough output space */ + while (len--) + s->out[s->outcnt++] = s->in[s->incnt++]; + } + else { /* just scanning */ + s->outcnt += len; + s->incnt += len; + } + + /* done with a valid stored block */ + return 0; +} + +/* + * Huffman code decoding tables. count[1..MAXBITS] is the number of symbols of + * each length, which for a canonical code are stepped through in order. + * symbol[] are the symbol values in canonical order, where the number of + * entries is the sum of the counts in count[]. The decoding process can be + * seen in the function decode() below. + */ +struct huffman { + short *count; /* number of symbols of each length */ + short *symbol; /* canonically ordered symbols */ +}; + +/* + * Decode a code from the stream s using huffman table h. Return the symbol or + * a negative value if there is an error. If all of the lengths are zero, i.e. + * an empty code, or if the code is incomplete and an invalid code is received, + * then -9 is returned after reading MAXBITS bits. + * + * Format notes: + * + * - The codes as stored in the compressed data are bit-reversed relative to + * a simple integer ordering of codes of the same lengths. Hence below the + * bits are pulled from the compressed data one at a time and used to + * build the code value reversed from what is in the stream in order to + * permit simple integer comparisons for decoding. A table-based decoding + * scheme (as used in zlib) does not need to do this reversal. + * + * - The first code for the shortest length is all zeros. Subsequent codes of + * the same length are simply integer increments of the previous code. When + * moving up a length, a zero bit is appended to the code. For a complete + * code, the last code of the longest length will be all ones. + * + * - Incomplete codes are handled by this decoder, since they are permitted + * in the deflate format. See the format notes for fixed() and dynamic(). + */ +#ifdef SLOW +local int decode(struct state *s, struct huffman *h) +{ + int len; /* current number of bits in code */ + int code; /* len bits being decoded */ + int first; /* first code of length len */ + int count; /* number of codes of length len */ + int index; /* index of first code of length len in symbol table */ + + code = first = index = 0; + for (len = 1; len <= MAXBITS; len++) { + code |= bits(s, 1); /* get next bit */ + count = h->count[len]; + if (code < first + count) /* if length len, return symbol */ + return h->symbol[index + (code - first)]; + index += count; /* else update for next length */ + first += count; + first <<= 1; + code <<= 1; + } + return -9; /* ran out of codes */ +} + +/* + * A faster version of decode() for real applications of this code. It's not + * as readable, but it makes puff() twice as fast. And it only makes the code + * a few percent larger. + */ +#else /* !SLOW */ +local int decode(struct state *s, struct huffman *h) +{ + int len; /* current number of bits in code */ + int code; /* len bits being decoded */ + int first; /* first code of length len */ + int count; /* number of codes of length len */ + int index; /* index of first code of length len in symbol table */ + int bitbuf; /* bits from stream */ + int left; /* bits left in next or left to process */ + short *next; /* next number of codes */ + + bitbuf = s->bitbuf; + left = s->bitcnt; + code = first = index = 0; + len = 1; + next = h->count + 1; + while (1) { + while (left--) { + code |= bitbuf & 1; + bitbuf >>= 1; + count = *next++; + if (code < first + count) { /* if length len, return symbol */ + s->bitbuf = bitbuf; + s->bitcnt = (s->bitcnt - len) & 7; + return h->symbol[index + (code - first)]; + } + index += count; /* else update for next length */ + first += count; + first <<= 1; + code <<= 1; + len++; + } + left = (MAXBITS+1) - len; + if (left == 0) break; + if (s->incnt == s->inlen) longjmp(s->env, 1); /* out of input */ + bitbuf = s->in[s->incnt++]; + if (left > 8) left = 8; + } + return -9; /* ran out of codes */ +} +#endif /* SLOW */ + +/* + * Given the list of code lengths length[0..n-1] representing a canonical + * Huffman code for n symbols, construct the tables required to decode those + * codes. Those tables are the number of codes of each length, and the symbols + * sorted by length, retaining their original order within each length. The + * return value is zero for a complete code set, negative for an over- + * subscribed code set, and positive for an incomplete code set. The tables + * can be used if the return value is zero or positive, but they cannot be used + * if the return value is negative. If the return value is zero, it is not + * possible for decode() using that table to return an error--any stream of + * enough bits will resolve to a symbol. If the return value is positive, then + * it is possible for decode() using that table to return an error for received + * codes past the end of the incomplete lengths. + * + * Not used by decode(), but used for error checking, h->count[0] is the number + * of the n symbols not in the code. So n - h->count[0] is the number of + * codes. This is useful for checking for incomplete codes that have more than + * one symbol, which is an error in a dynamic block. + * + * Assumption: for all i in 0..n-1, 0 <= length[i] <= MAXBITS + * This is assured by the construction of the length arrays in dynamic() and + * fixed() and is not verified by construct(). + * + * Format notes: + * + * - Permitted and expected examples of incomplete codes are one of the fixed + * codes and any code with a single symbol which in deflate is coded as one + * bit instead of zero bits. See the format notes for fixed() and dynamic(). + * + * - Within a given code length, the symbols are kept in ascending order for + * the code bits definition. + */ +local int construct(struct huffman *h, short *length, int n) +{ + int symbol; /* current symbol when stepping through length[] */ + int len; /* current length when stepping through h->count[] */ + int left; /* number of possible codes left of current length */ + short offs[MAXBITS+1]; /* offsets in symbol table for each length */ + + /* count number of codes of each length */ + for (len = 0; len <= MAXBITS; len++) + h->count[len] = 0; + for (symbol = 0; symbol < n; symbol++) + (h->count[length[symbol]])++; /* assumes lengths are within bounds */ + if (h->count[0] == n) /* no codes! */ + return 0; /* complete, but decode() will fail */ + + /* check for an over-subscribed or incomplete set of lengths */ + left = 1; /* one possible code of zero length */ + for (len = 1; len <= MAXBITS; len++) { + left <<= 1; /* one more bit, double codes left */ + left -= h->count[len]; /* deduct count from possible codes */ + if (left < 0) return left; /* over-subscribed--return negative */ + } /* left > 0 means incomplete */ + + /* generate offsets into symbol table for each length for sorting */ + offs[1] = 0; + for (len = 1; len < MAXBITS; len++) + offs[len + 1] = offs[len] + h->count[len]; + + /* + * put symbols in table sorted by length, by symbol order within each + * length + */ + for (symbol = 0; symbol < n; symbol++) + if (length[symbol] != 0) + h->symbol[offs[length[symbol]]++] = symbol; + + /* return zero for complete set, positive for incomplete set */ + return left; +} + +/* + * Decode literal/length and distance codes until an end-of-block code. + * + * Format notes: + * + * - Compressed data that is after the block type if fixed or after the code + * description if dynamic is a combination of literals and length/distance + * pairs terminated by and end-of-block code. Literals are simply Huffman + * coded bytes. A length/distance pair is a coded length followed by a + * coded distance to represent a string that occurs earlier in the + * uncompressed data that occurs again at the current location. + * + * - Literals, lengths, and the end-of-block code are combined into a single + * code of up to 286 symbols. They are 256 literals (0..255), 29 length + * symbols (257..285), and the end-of-block symbol (256). + * + * - There are 256 possible lengths (3..258), and so 29 symbols are not enough + * to represent all of those. Lengths 3..10 and 258 are in fact represented + * by just a length symbol. Lengths 11..257 are represented as a symbol and + * some number of extra bits that are added as an integer to the base length + * of the length symbol. The number of extra bits is determined by the base + * length symbol. These are in the static arrays below, lens[] for the base + * lengths and lext[] for the corresponding number of extra bits. + * + * - The reason that 258 gets its own symbol is that the longest length is used + * often in highly redundant files. Note that 258 can also be coded as the + * base value 227 plus the maximum extra value of 31. While a good deflate + * should never do this, it is not an error, and should be decoded properly. + * + * - If a length is decoded, including its extra bits if any, then it is + * followed a distance code. There are up to 30 distance symbols. Again + * there are many more possible distances (1..32768), so extra bits are added + * to a base value represented by the symbol. The distances 1..4 get their + * own symbol, but the rest require extra bits. The base distances and + * corresponding number of extra bits are below in the static arrays dist[] + * and dext[]. + * + * - Literal bytes are simply written to the output. A length/distance pair is + * an instruction to copy previously uncompressed bytes to the output. The + * copy is from distance bytes back in the output stream, copying for length + * bytes. + * + * - Distances pointing before the beginning of the output data are not + * permitted. + * + * - Overlapped copies, where the length is greater than the distance, are + * allowed and common. For example, a distance of one and a length of 258 + * simply copies the last byte 258 times. A distance of four and a length of + * twelve copies the last four bytes three times. A simple forward copy + * ignoring whether the length is greater than the distance or not implements + * this correctly. You should not use memcpy() since its behavior is not + * defined for overlapped arrays. You should not use memmove() or bcopy() + * since though their behavior -is- defined for overlapping arrays, it is + * defined to do the wrong thing in this case. + */ +local int codes(struct state *s, + struct huffman *lencode, + struct huffman *distcode) +{ + int symbol; /* decoded symbol */ + int len; /* length for copy */ + unsigned dist; /* distance for copy */ + static const short lens[29] = { /* Size base for length codes 257..285 */ + 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31, + 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258}; + static const short lext[29] = { /* Extra bits for length codes 257..285 */ + 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, + 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0}; + static const short dists[30] = { /* Offset base for distance codes 0..29 */ + 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193, + 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145, + 8193, 12289, 16385, 24577}; + static const short dext[30] = { /* Extra bits for distance codes 0..29 */ + 0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, + 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, + 12, 12, 13, 13}; + + /* decode literals and length/distance pairs */ + do { + symbol = decode(s, lencode); + if (symbol < 0) return symbol; /* invalid symbol */ + if (symbol < 256) { /* literal: symbol is the byte */ + /* write out the literal */ + if (s->out != NIL) { + if (s->outcnt == s->outlen) return 1; + s->out[s->outcnt] = symbol; + } + s->outcnt++; + } + else if (symbol > 256) { /* length */ + /* get and compute length */ + symbol -= 257; + if (symbol >= 29) return -9; /* invalid fixed code */ + len = lens[symbol] + bits(s, lext[symbol]); + + /* get and check distance */ + symbol = decode(s, distcode); + if (symbol < 0) return symbol; /* invalid symbol */ + dist = dists[symbol] + bits(s, dext[symbol]); + if (dist > s->outcnt) + return -10; /* distance too far back */ + + /* copy length bytes from distance bytes back */ + if (s->out != NIL) { + if (s->outcnt + len > s->outlen) return 1; + while (len--) { + s->out[s->outcnt] = s->out[s->outcnt - dist]; + s->outcnt++; + } + } + else + s->outcnt += len; + } + } while (symbol != 256); /* end of block symbol */ + + /* done with a valid fixed or dynamic block */ + return 0; +} + +/* + * Process a fixed codes block. + * + * Format notes: + * + * - This block type can be useful for compressing small amounts of data for + * which the size of the code descriptions in a dynamic block exceeds the + * benefit of custom codes for that block. For fixed codes, no bits are + * spent on code descriptions. Instead the code lengths for literal/length + * codes and distance codes are fixed. The specific lengths for each symbol + * can be seen in the "for" loops below. + * + * - The literal/length code is complete, but has two symbols that are invalid + * and should result in an error if received. This cannot be implemented + * simply as an incomplete code since those two symbols are in the "middle" + * of the code. They are eight bits long and the longest literal/length\ + * code is nine bits. Therefore the code must be constructed with those + * symbols, and the invalid symbols must be detected after decoding. + * + * - The fixed distance codes also have two invalid symbols that should result + * in an error if received. Since all of the distance codes are the same + * length, this can be implemented as an incomplete code. Then the invalid + * codes are detected while decoding. + */ +local int fixed(struct state *s) +{ + static int virgin = 1; + static short lencnt[MAXBITS+1], lensym[FIXLCODES]; + static short distcnt[MAXBITS+1], distsym[MAXDCODES]; + static struct huffman lencode = {lencnt, lensym}; + static struct huffman distcode = {distcnt, distsym}; + + /* build fixed huffman tables if first call (may not be thread safe) */ + if (virgin) { + int symbol; + short lengths[FIXLCODES]; + + /* literal/length table */ + for (symbol = 0; symbol < 144; symbol++) + lengths[symbol] = 8; + for (; symbol < 256; symbol++) + lengths[symbol] = 9; + for (; symbol < 280; symbol++) + lengths[symbol] = 7; + for (; symbol < FIXLCODES; symbol++) + lengths[symbol] = 8; + construct(&lencode, lengths, FIXLCODES); + + /* distance table */ + for (symbol = 0; symbol < MAXDCODES; symbol++) + lengths[symbol] = 5; + construct(&distcode, lengths, MAXDCODES); + + /* do this just once */ + virgin = 0; + } + + /* decode data until end-of-block code */ + return codes(s, &lencode, &distcode); +} + +/* + * Process a dynamic codes block. + * + * Format notes: + * + * - A dynamic block starts with a description of the literal/length and + * distance codes for that block. New dynamic blocks allow the compressor to + * rapidly adapt to changing data with new codes optimized for that data. + * + * - The codes used by the deflate format are "canonical", which means that + * the actual bits of the codes are generated in an unambiguous way simply + * from the number of bits in each code. Therefore the code descriptions + * are simply a list of code lengths for each symbol. + * + * - The code lengths are stored in order for the symbols, so lengths are + * provided for each of the literal/length symbols, and for each of the + * distance symbols. + * + * - If a symbol is not used in the block, this is represented by a zero as + * as the code length. This does not mean a zero-length code, but rather + * that no code should be created for this symbol. There is no way in the + * deflate format to represent a zero-length code. + * + * - The maximum number of bits in a code is 15, so the possible lengths for + * any code are 1..15. + * + * - The fact that a length of zero is not permitted for a code has an + * interesting consequence. Normally if only one symbol is used for a given + * code, then in fact that code could be represented with zero bits. However + * in deflate, that code has to be at least one bit. So for example, if + * only a single distance base symbol appears in a block, then it will be + * represented by a single code of length one, in particular one 0 bit. This + * is an incomplete code, since if a 1 bit is received, it has no meaning, + * and should result in an error. So incomplete distance codes of one symbol + * should be permitted, and the receipt of invalid codes should be handled. + * + * - It is also possible to have a single literal/length code, but that code + * must be the end-of-block code, since every dynamic block has one. This + * is not the most efficient way to create an empty block (an empty fixed + * block is fewer bits), but it is allowed by the format. So incomplete + * literal/length codes of one symbol should also be permitted. + * + * - If there are only literal codes and no lengths, then there are no distance + * codes. This is represented by one distance code with zero bits. + * + * - The list of up to 286 length/literal lengths and up to 30 distance lengths + * are themselves compressed using Huffman codes and run-length encoding. In + * the list of code lengths, a 0 symbol means no code, a 1..15 symbol means + * that length, and the symbols 16, 17, and 18 are run-length instructions. + * Each of 16, 17, and 18 are follwed by extra bits to define the length of + * the run. 16 copies the last length 3 to 6 times. 17 represents 3 to 10 + * zero lengths, and 18 represents 11 to 138 zero lengths. Unused symbols + * are common, hence the special coding for zero lengths. + * + * - The symbols for 0..18 are Huffman coded, and so that code must be + * described first. This is simply a sequence of up to 19 three-bit values + * representing no code (0) or the code length for that symbol (1..7). + * + * - A dynamic block starts with three fixed-size counts from which is computed + * the number of literal/length code lengths, the number of distance code + * lengths, and the number of code length code lengths (ok, you come up with + * a better name!) in the code descriptions. For the literal/length and + * distance codes, lengths after those provided are considered zero, i.e. no + * code. The code length code lengths are received in a permuted order (see + * the order[] array below) to make a short code length code length list more + * likely. As it turns out, very short and very long codes are less likely + * to be seen in a dynamic code description, hence what may appear initially + * to be a peculiar ordering. + * + * - Given the number of literal/length code lengths (nlen) and distance code + * lengths (ndist), then they are treated as one long list of nlen + ndist + * code lengths. Therefore run-length coding can and often does cross the + * boundary between the two sets of lengths. + * + * - So to summarize, the code description at the start of a dynamic block is + * three counts for the number of code lengths for the literal/length codes, + * the distance codes, and the code length codes. This is followed by the + * code length code lengths, three bits each. This is used to construct the + * code length code which is used to read the remainder of the lengths. Then + * the literal/length code lengths and distance lengths are read as a single + * set of lengths using the code length codes. Codes are constructed from + * the resulting two sets of lengths, and then finally you can start + * decoding actual compressed data in the block. + * + * - For reference, a "typical" size for the code description in a dynamic + * block is around 80 bytes. + */ +local int dynamic(struct state *s) +{ + int nlen, ndist, ncode; /* number of lengths in descriptor */ + int index; /* index of lengths[] */ + int err; /* construct() return value */ + short lengths[MAXCODES]; /* descriptor code lengths */ + short lencnt[MAXBITS+1], lensym[MAXLCODES]; /* lencode memory */ + short distcnt[MAXBITS+1], distsym[MAXDCODES]; /* distcode memory */ + struct huffman lencode = {lencnt, lensym}; /* length code */ + struct huffman distcode = {distcnt, distsym}; /* distance code */ + static const short order[19] = /* permutation of code length codes */ + {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15}; + + /* get number of lengths in each table, check lengths */ + nlen = bits(s, 5) + 257; + ndist = bits(s, 5) + 1; + ncode = bits(s, 4) + 4; + if (nlen > MAXLCODES || ndist > MAXDCODES) + return -3; /* bad counts */ + + /* read code length code lengths (really), missing lengths are zero */ + for (index = 0; index < ncode; index++) + lengths[order[index]] = bits(s, 3); + for (; index < 19; index++) + lengths[order[index]] = 0; + + /* build huffman table for code lengths codes (use lencode temporarily) */ + err = construct(&lencode, lengths, 19); + if (err != 0) return -4; /* require complete code set here */ + + /* read length/literal and distance code length tables */ + index = 0; + while (index < nlen + ndist) { + int symbol; /* decoded value */ + int len; /* last length to repeat */ + + symbol = decode(s, &lencode); + if (symbol < 16) /* length in 0..15 */ + lengths[index++] = symbol; + else { /* repeat instruction */ + len = 0; /* assume repeating zeros */ + if (symbol == 16) { /* repeat last length 3..6 times */ + if (index == 0) return -5; /* no last length! */ + len = lengths[index - 1]; /* last length */ + symbol = 3 + bits(s, 2); + } + else if (symbol == 17) /* repeat zero 3..10 times */ + symbol = 3 + bits(s, 3); + else /* == 18, repeat zero 11..138 times */ + symbol = 11 + bits(s, 7); + if (index + symbol > nlen + ndist) + return -6; /* too many lengths! */ + while (symbol--) /* repeat last or zero symbol times */ + lengths[index++] = len; + } + } + + /* build huffman table for literal/length codes */ + err = construct(&lencode, lengths, nlen); + if (err < 0 || (err > 0 && nlen - lencode.count[0] != 1)) + return -7; /* only allow incomplete codes if just one code */ + + /* build huffman table for distance codes */ + err = construct(&distcode, lengths + nlen, ndist); + if (err < 0 || (err > 0 && ndist - distcode.count[0] != 1)) + return -8; /* only allow incomplete codes if just one code */ + + /* decode data until end-of-block code */ + return codes(s, &lencode, &distcode); +} + +/* + * Inflate source to dest. On return, destlen and sourcelen are updated to the + * size of the uncompressed data and the size of the deflate data respectively. + * On success, the return value of puff() is zero. If there is an error in the + * source data, i.e. it is not in the deflate format, then a negative value is + * returned. If there is not enough input available or there is not enough + * output space, then a positive error is returned. In that case, destlen and + * sourcelen are not updated to facilitate retrying from the beginning with the + * provision of more input data or more output space. In the case of invalid + * inflate data (a negative error), the dest and source pointers are updated to + * facilitate the debugging of deflators. + * + * puff() also has a mode to determine the size of the uncompressed output with + * no output written. For this dest must be (unsigned char *)0. In this case, + * the input value of *destlen is ignored, and on return *destlen is set to the + * size of the uncompressed output. + * + * The return codes are: + * + * 2: available inflate data did not terminate + * 1: output space exhausted before completing inflate + * 0: successful inflate + * -1: invalid block type (type == 3) + * -2: stored block length did not match one's complement + * -3: dynamic block code description: too many length or distance codes + * -4: dynamic block code description: code lengths codes incomplete + * -5: dynamic block code description: repeat lengths with no first length + * -6: dynamic block code description: repeat more than specified lengths + * -7: dynamic block code description: invalid literal/length code lengths + * -8: dynamic block code description: invalid distance code lengths + * -9: invalid literal/length or distance code in fixed or dynamic block + * -10: distance is too far back in fixed or dynamic block + * + * Format notes: + * + * - Three bits are read for each block to determine the kind of block and + * whether or not it is the last block. Then the block is decoded and the + * process repeated if it was not the last block. + * + * - The leftover bits in the last byte of the deflate data after the last + * block (if it was a fixed or dynamic block) are undefined and have no + * expected values to check. + */ +int puff(unsigned char *dest, /* pointer to destination pointer */ + unsigned long *destlen, /* amount of output space */ + unsigned char *source, /* pointer to source data pointer */ + unsigned long *sourcelen) /* amount of input available */ +{ + struct state s; /* input/output state */ + int last, type; /* block information */ + int err; /* return value */ + + /* initialize output state */ + s.out = dest; + s.outlen = *destlen; /* ignored if dest is NIL */ + s.outcnt = 0; + + /* initialize input state */ + s.in = source; + s.inlen = *sourcelen; + s.incnt = 0; + s.bitbuf = 0; + s.bitcnt = 0; + + /* return if bits() or decode() tries to read past available input */ + if (setjmp(s.env) != 0) /* if came back here via longjmp() */ + err = 2; /* then skip do-loop, return error */ + else { + /* process blocks until last block or error */ + do { + last = bits(&s, 1); /* one if last block */ + type = bits(&s, 2); /* block type 0..3 */ + err = type == 0 ? stored(&s) : + (type == 1 ? fixed(&s) : + (type == 2 ? dynamic(&s) : + -1)); /* type == 3, invalid */ + if (err != 0) break; /* return with error */ + } while (!last); + } + + /* update the lengths and return */ + if (err <= 0) { + *destlen = s.outcnt; + *sourcelen = s.incnt; + } + return err; +} + +#ifdef TEST +/* Example of how to use puff() */ +#include +#include +#include +#include + +local unsigned char *yank(char *name, unsigned long *len) +{ + unsigned long size; + unsigned char *buf; + FILE *in; + struct stat s; + + *len = 0; + if (stat(name, &s)) return NULL; + if ((s.st_mode & S_IFMT) != S_IFREG) return NULL; + size = (unsigned long)(s.st_size); + if (size == 0 || (off_t)size != s.st_size) return NULL; + in = fopen(name, "r"); + if (in == NULL) return NULL; + buf = malloc(size); + if (buf != NULL && fread(buf, 1, size, in) != size) { + free(buf); + buf = NULL; + } + fclose(in); + *len = size; + return buf; +} + +int main(int argc, char **argv) +{ + int ret; + unsigned char *source; + unsigned long len, sourcelen, destlen; + + if (argc < 2) return 2; + source = yank(argv[1], &len); + if (source == NULL) return 2; + sourcelen = len; + ret = puff(NIL, &destlen, source, &sourcelen); + if (ret) + printf("puff() failed with return code %d\n", ret); + else { + printf("puff() succeeded uncompressing %lu bytes\n", destlen); + if (sourcelen < len) printf("%lu compressed bytes unused\n", + len - sourcelen); + } + free(source); + return ret; +} +#endif diff --git a/cpukit/zlib/contrib/puff/puff.h b/cpukit/zlib/contrib/puff/puff.h new file mode 100644 index 0000000000..ef612520b3 --- /dev/null +++ b/cpukit/zlib/contrib/puff/puff.h @@ -0,0 +1,31 @@ +/* puff.h + Copyright (C) 2002, 2003 Mark Adler, all rights reserved + version 1.7, 3 Mar 2002 + + This software is provided 'as-is', without any express or implied + warranty. In no event will the author be held liable for any damages + arising from the use of this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute it + freely, subject to the following restrictions: + + 1. The origin of this software must not be misrepresented; you must not + claim that you wrote the original software. If you use this software + in a product, an acknowledgment in the product documentation would be + appreciated but is not required. + 2. Altered source versions must be plainly marked as such, and must not be + misrepresented as being the original software. + 3. This notice may not be removed or altered from any source distribution. + + Mark Adler madler@alumni.caltech.edu + */ + + +/* + * See puff.c for purpose and usage. + */ +int puff(unsigned char *dest, /* pointer to destination pointer */ + unsigned long *destlen, /* amount of output space */ + unsigned char *source, /* pointer to source data pointer */ + unsigned long *sourcelen); /* amount of input available */ diff --git a/cpukit/zlib/contrib/puff/zeros.raw b/cpukit/zlib/contrib/puff/zeros.raw new file mode 100644 index 0000000000..637b7be6f5 Binary files /dev/null and b/cpukit/zlib/contrib/puff/zeros.raw differ diff --git a/cpukit/zlib/contrib/testzlib/testzlib.c b/cpukit/zlib/contrib/testzlib/testzlib.c new file mode 100644 index 0000000000..fdabc5c192 --- /dev/null +++ b/cpukit/zlib/contrib/testzlib/testzlib.c @@ -0,0 +1,149 @@ + +#include +#include +#include +#include "zlib.h" + +int ReadFileMemory(const char* filename,long* plFileSize,void** pFilePtr) +{ + FILE* stream; + void* ptr; + int retVal=1; + stream=fopen(filename, "rb"); + if (stream==NULL) + return 0; + + fseek(stream,0,SEEK_END); + + *plFileSize=ftell(stream); + fseek(stream,0,SEEK_SET); + ptr=malloc((*plFileSize)+1); + if (ptr==NULL) + retVal=0; + else + { + if (fread(ptr, 1, *plFileSize,stream) != (*plFileSize)) + retVal=0; + } + fclose(stream); + *pFilePtr=ptr; + return retVal; +} + +int main(int argc, char *argv[]) +{ + int BlockSizeCompress=0x8000; + int BlockSizeUncompress=0x8000; + int cprLevel=Z_DEFAULT_COMPRESSION ; + long lFileSize; + unsigned char* FilePtr; + long lBufferSizeCpr; + long lBufferSizeUncpr; + long lCompressedSize=0; + unsigned char* CprPtr; + unsigned char* UncprPtr; + long lSizeCpr,lSizeUncpr; + DWORD dwGetTick; + + if (argc<=1) + { + printf("run TestZlib [BlockSizeCompress] [BlockSizeUncompress] [compres. level]\n"); + return 0; + } + + if (ReadFileMemory(argv[1],&lFileSize,&FilePtr)==0) + { + printf("error reading %s\n",argv[1]); + return 1; + } + else printf("file %s read, %u bytes\n",argv[1],lFileSize); + + if (argc>=3) + BlockSizeCompress=atol(argv[2]); + + if (argc>=4) + BlockSizeUncompress=atol(argv[3]); + + if (argc>=5) + cprLevel=(int)atol(argv[4]); + + lBufferSizeCpr = lFileSize + (lFileSize/0x10) + 0x200; + lBufferSizeUncpr = lBufferSizeCpr; + + CprPtr=(unsigned char*)malloc(lBufferSizeCpr + BlockSizeCompress); + UncprPtr=(unsigned char*)malloc(lBufferSizeUncpr + BlockSizeUncompress); + + dwGetTick=GetTickCount(); + { + z_stream zcpr; + int ret=Z_OK; + long lOrigToDo = lFileSize; + long lOrigDone = 0; + int step=0; + memset(&zcpr,0,sizeof(z_stream)); + deflateInit(&zcpr,cprLevel); + + zcpr.next_in = FilePtr; + zcpr.next_out = CprPtr; + + + do + { + long all_read_before = zcpr.total_in; + zcpr.avail_in = min(lOrigToDo,BlockSizeCompress); + zcpr.avail_out = BlockSizeCompress; + ret=deflate(&zcpr,(zcpr.avail_in==lOrigToDo) ? Z_FINISH : Z_SYNC_FLUSH); + lOrigDone += (zcpr.total_in-all_read_before); + lOrigToDo -= (zcpr.total_in-all_read_before); + step++; + } while (ret==Z_OK); + + lSizeCpr=zcpr.total_out; + deflateEnd(&zcpr); + dwGetTick=GetTickCount()-dwGetTick; + printf("total compress size = %u, in %u step\n",lSizeCpr,step); + printf("time = %u msec = %f sec\n\n",dwGetTick,dwGetTick/(double)1000.); + } + + dwGetTick=GetTickCount(); + { + z_stream zcpr; + int ret=Z_OK; + long lOrigToDo = lSizeCpr; + long lOrigDone = 0; + int step=0; + memset(&zcpr,0,sizeof(z_stream)); + inflateInit(&zcpr); + + zcpr.next_in = CprPtr; + zcpr.next_out = UncprPtr; + + + do + { + long all_read_before = zcpr.total_in; + zcpr.avail_in = min(lOrigToDo,BlockSizeUncompress); + zcpr.avail_out = BlockSizeUncompress; + ret=inflate(&zcpr,Z_SYNC_FLUSH); + lOrigDone += (zcpr.total_in-all_read_before); + lOrigToDo -= (zcpr.total_in-all_read_before); + step++; + } while (ret==Z_OK); + + lSizeUncpr=zcpr.total_out; + inflateEnd(&zcpr); + dwGetTick=GetTickCount()-dwGetTick; + printf("total uncompress size = %u, in %u step\n",lSizeUncpr,step); + printf("time = %u msec = %f sec\n\n",dwGetTick,dwGetTick/(double)1000.); + } + + if (lSizeUncpr==lFileSize) + { + if (memcmp(FilePtr,UncprPtr,lFileSize)==0) + printf("compare ok\n"); + + } + + return 0; + +} diff --git a/cpukit/zlib/contrib/testzlib/testzlib.sln b/cpukit/zlib/contrib/testzlib/testzlib.sln new file mode 100644 index 0000000000..86da7163d1 --- /dev/null +++ b/cpukit/zlib/contrib/testzlib/testzlib.sln @@ -0,0 +1,21 @@ +Microsoft Visual Studio Solution File, Format Version 7.00 +Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "testzlib", "testzlib.vcproj", "{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}" +EndProject +Global + GlobalSection(SolutionConfiguration) = preSolution + ConfigName.0 = Debug + ConfigName.1 = Release + EndGlobalSection + GlobalSection(ProjectDependencies) = postSolution + EndGlobalSection + GlobalSection(ProjectConfiguration) = postSolution + {AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug.ActiveCfg = Debug|Win32 + {AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug.Build.0 = Debug|Win32 + {AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release.ActiveCfg = Release|Win32 + {AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release.Build.0 = Release|Win32 + EndGlobalSection + GlobalSection(ExtensibilityGlobals) = postSolution + EndGlobalSection + GlobalSection(ExtensibilityAddIns) = postSolution + EndGlobalSection +EndGlobal diff --git a/cpukit/zlib/contrib/testzlib/testzlib.vcproj b/cpukit/zlib/contrib/testzlib/testzlib.vcproj new file mode 100644 index 0000000000..bd9b39bb9d --- /dev/null +++ b/cpukit/zlib/contrib/testzlib/testzlib.vcproj @@ -0,0 +1,124 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/cpukit/zlib/contrib/untgz/Makefile b/cpukit/zlib/contrib/untgz/Makefile new file mode 100644 index 0000000000..b54266fba2 --- /dev/null +++ b/cpukit/zlib/contrib/untgz/Makefile @@ -0,0 +1,14 @@ +CC=cc +CFLAGS=-g + +untgz: untgz.o ../../libz.a + $(CC) $(CFLAGS) -o untgz untgz.o -L../.. -lz + +untgz.o: untgz.c ../../zlib.h + $(CC) $(CFLAGS) -c -I../.. untgz.c + +../../libz.a: + cd ../..; ./configure; make + +clean: + rm -f untgz untgz.o *~ diff --git a/cpukit/zlib/contrib/untgz/Makefile.msc b/cpukit/zlib/contrib/untgz/Makefile.msc new file mode 100644 index 0000000000..77b8602213 --- /dev/null +++ b/cpukit/zlib/contrib/untgz/Makefile.msc @@ -0,0 +1,17 @@ +CC=cl +CFLAGS=-MD + +untgz.exe: untgz.obj ..\..\zlib.lib + $(CC) $(CFLAGS) untgz.obj ..\..\zlib.lib + +untgz.obj: untgz.c ..\..\zlib.h + $(CC) $(CFLAGS) -c -I..\.. untgz.c + +..\..\zlib.lib: + cd ..\.. + $(MAKE) -f win32\makefile.msc + cd contrib\untgz + +clean: + -del untgz.obj + -del untgz.exe diff --git a/cpukit/zlib/contrib/untgz/untgz.c b/cpukit/zlib/contrib/untgz/untgz.c new file mode 100644 index 0000000000..2c391e5986 --- /dev/null +++ b/cpukit/zlib/contrib/untgz/untgz.c @@ -0,0 +1,674 @@ +/* + * untgz.c -- Display contents and extract files from a gzip'd TAR file + * + * written by Pedro A. Aranda Gutierrez + * adaptation to Unix by Jean-loup Gailly + * various fixes by Cosmin Truta + */ + +#include +#include +#include +#include +#include + +#include "zlib.h" + +#ifdef unix +# include +#else +# include +# include +#endif + +#ifdef WIN32 +#include +# ifndef F_OK +# define F_OK 0 +# endif +# define mkdir(dirname,mode) _mkdir(dirname) +# ifdef _MSC_VER +# define access(path,mode) _access(path,mode) +# define chmod(path,mode) _chmod(path,mode) +# define strdup(str) _strdup(str) +# endif +#else +# include +#endif + + +/* values used in typeflag field */ + +#define REGTYPE '0' /* regular file */ +#define AREGTYPE '\0' /* regular file */ +#define LNKTYPE '1' /* link */ +#define SYMTYPE '2' /* reserved */ +#define CHRTYPE '3' /* character special */ +#define BLKTYPE '4' /* block special */ +#define DIRTYPE '5' /* directory */ +#define FIFOTYPE '6' /* FIFO special */ +#define CONTTYPE '7' /* reserved */ + +/* GNU tar extensions */ + +#define GNUTYPE_DUMPDIR 'D' /* file names from dumped directory */ +#define GNUTYPE_LONGLINK 'K' /* long link name */ +#define GNUTYPE_LONGNAME 'L' /* long file name */ +#define GNUTYPE_MULTIVOL 'M' /* continuation of file from another volume */ +#define GNUTYPE_NAMES 'N' /* file name that does not fit into main hdr */ +#define GNUTYPE_SPARSE 'S' /* sparse file */ +#define GNUTYPE_VOLHDR 'V' /* tape/volume header */ + + +/* tar header */ + +#define BLOCKSIZE 512 +#define SHORTNAMESIZE 100 + +struct tar_header +{ /* byte offset */ + char name[100]; /* 0 */ + char mode[8]; /* 100 */ + char uid[8]; /* 108 */ + char gid[8]; /* 116 */ + char size[12]; /* 124 */ + char mtime[12]; /* 136 */ + char chksum[8]; /* 148 */ + char typeflag; /* 156 */ + char linkname[100]; /* 157 */ + char magic[6]; /* 257 */ + char version[2]; /* 263 */ + char uname[32]; /* 265 */ + char gname[32]; /* 297 */ + char devmajor[8]; /* 329 */ + char devminor[8]; /* 337 */ + char prefix[155]; /* 345 */ + /* 500 */ +}; + +union tar_buffer +{ + char buffer[BLOCKSIZE]; + struct tar_header header; +}; + +struct attr_item +{ + struct attr_item *next; + char *fname; + int mode; + time_t time; +}; + +enum { TGZ_EXTRACT, TGZ_LIST, TGZ_INVALID }; + +char *TGZfname OF((const char *)); +void TGZnotfound OF((const char *)); + +int getoct OF((char *, int)); +char *strtime OF((time_t *)); +int setfiletime OF((char *, time_t)); +void push_attr OF((struct attr_item **, char *, int, time_t)); +void restore_attr OF((struct attr_item **)); + +int ExprMatch OF((char *, char *)); + +int makedir OF((char *)); +int matchname OF((int, int, char **, char *)); + +void error OF((const char *)); +int tar OF((gzFile, int, int, int, char **)); + +void help OF((int)); +int main OF((int, char **)); + +char *prog; + +const char *TGZsuffix[] = { "\0", ".tar", ".tar.gz", ".taz", ".tgz", NULL }; + +/* return the file name of the TGZ archive */ +/* or NULL if it does not exist */ + +char *TGZfname (const char *arcname) +{ + static char buffer[1024]; + int origlen,i; + + strcpy(buffer,arcname); + origlen = strlen(buffer); + + for (i=0; TGZsuffix[i]; i++) + { + strcpy(buffer+origlen,TGZsuffix[i]); + if (access(buffer,F_OK) == 0) + return buffer; + } + return NULL; +} + + +/* error message for the filename */ + +void TGZnotfound (const char *arcname) +{ + int i; + + fprintf(stderr,"%s: Couldn't find ",prog); + for (i=0;TGZsuffix[i];i++) + fprintf(stderr,(TGZsuffix[i+1]) ? "%s%s, " : "or %s%s\n", + arcname, + TGZsuffix[i]); + exit(1); +} + + +/* convert octal digits to int */ +/* on error return -1 */ + +int getoct (char *p,int width) +{ + int result = 0; + char c; + + while (width--) + { + c = *p++; + if (c == 0) + break; + if (c == ' ') + continue; + if (c < '0' || c > '7') + return -1; + result = result * 8 + (c - '0'); + } + return result; +} + + +/* convert time_t to string */ +/* use the "YYYY/MM/DD hh:mm:ss" format */ + +char *strtime (time_t *t) +{ + struct tm *local; + static char result[32]; + + local = localtime(t); + sprintf(result,"%4d/%02d/%02d %02d:%02d:%02d", + local->tm_year+1900, local->tm_mon+1, local->tm_mday, + local->tm_hour, local->tm_min, local->tm_sec); + return result; +} + + +/* set file time */ + +int setfiletime (char *fname,time_t ftime) +{ +#ifdef WIN32 + static int isWinNT = -1; + SYSTEMTIME st; + FILETIME locft, modft; + struct tm *loctm; + HANDLE hFile; + int result; + + loctm = localtime(&ftime); + if (loctm == NULL) + return -1; + + st.wYear = (WORD)loctm->tm_year + 1900; + st.wMonth = (WORD)loctm->tm_mon + 1; + st.wDayOfWeek = (WORD)loctm->tm_wday; + st.wDay = (WORD)loctm->tm_mday; + st.wHour = (WORD)loctm->tm_hour; + st.wMinute = (WORD)loctm->tm_min; + st.wSecond = (WORD)loctm->tm_sec; + st.wMilliseconds = 0; + if (!SystemTimeToFileTime(&st, &locft) || + !LocalFileTimeToFileTime(&locft, &modft)) + return -1; + + if (isWinNT < 0) + isWinNT = (GetVersion() < 0x80000000) ? 1 : 0; + hFile = CreateFile(fname, GENERIC_WRITE, 0, NULL, OPEN_EXISTING, + (isWinNT ? FILE_FLAG_BACKUP_SEMANTICS : 0), + NULL); + if (hFile == INVALID_HANDLE_VALUE) + return -1; + result = SetFileTime(hFile, NULL, NULL, &modft) ? 0 : -1; + CloseHandle(hFile); + return result; +#else + struct utimbuf settime; + + settime.actime = settime.modtime = ftime; + return utime(fname,&settime); +#endif +} + + +/* push file attributes */ + +void push_attr(struct attr_item **list,char *fname,int mode,time_t time) +{ + struct attr_item *item; + + item = (struct attr_item *)malloc(sizeof(struct attr_item)); + if (item == NULL) + error("Out of memory"); + item->fname = strdup(fname); + item->mode = mode; + item->time = time; + item->next = *list; + *list = item; +} + + +/* restore file attributes */ + +void restore_attr(struct attr_item **list) +{ + struct attr_item *item, *prev; + + for (item = *list; item != NULL; ) + { + setfiletime(item->fname,item->time); + chmod(item->fname,item->mode); + prev = item; + item = item->next; + free(prev); + } + *list = NULL; +} + + +/* match regular expression */ + +#define ISSPECIAL(c) (((c) == '*') || ((c) == '/')) + +int ExprMatch (char *string,char *expr) +{ + while (1) + { + if (ISSPECIAL(*expr)) + { + if (*expr == '/') + { + if (*string != '\\' && *string != '/') + return 0; + string ++; expr++; + } + else if (*expr == '*') + { + if (*expr ++ == 0) + return 1; + while (*++string != *expr) + if (*string == 0) + return 0; + } + } + else + { + if (*string != *expr) + return 0; + if (*expr++ == 0) + return 1; + string++; + } + } +} + + +/* recursive mkdir */ +/* abort on ENOENT; ignore other errors like "directory already exists" */ +/* return 1 if OK */ +/* 0 on error */ + +int makedir (char *newdir) +{ + char *buffer = strdup(newdir); + char *p; + int len = strlen(buffer); + + if (len <= 0) { + free(buffer); + return 0; + } + if (buffer[len-1] == '/') { + buffer[len-1] = '\0'; + } + if (mkdir(buffer, 0755) == 0) + { + free(buffer); + return 1; + } + + p = buffer+1; + while (1) + { + char hold; + + while(*p && *p != '\\' && *p != '/') + p++; + hold = *p; + *p = 0; + if ((mkdir(buffer, 0755) == -1) && (errno == ENOENT)) + { + fprintf(stderr,"%s: Couldn't create directory %s\n",prog,buffer); + free(buffer); + return 0; + } + if (hold == 0) + break; + *p++ = hold; + } + free(buffer); + return 1; +} + + +int matchname (int arg,int argc,char **argv,char *fname) +{ + if (arg == argc) /* no arguments given (untgz tgzarchive) */ + return 1; + + while (arg < argc) + if (ExprMatch(fname,argv[arg++])) + return 1; + + return 0; /* ignore this for the moment being */ +} + + +/* tar file list or extract */ + +int tar (gzFile in,int action,int arg,int argc,char **argv) +{ + union tar_buffer buffer; + int len; + int err; + int getheader = 1; + int remaining = 0; + FILE *outfile = NULL; + char fname[BLOCKSIZE]; + int tarmode; + time_t tartime; + struct attr_item *attributes = NULL; + + if (action == TGZ_LIST) + printf(" date time size file\n" + " ---------- -------- --------- -------------------------------------\n"); + while (1) + { + len = gzread(in, &buffer, BLOCKSIZE); + if (len < 0) + error(gzerror(in, &err)); + /* + * Always expect complete blocks to process + * the tar information. + */ + if (len != BLOCKSIZE) + { + action = TGZ_INVALID; /* force error exit */ + remaining = 0; /* force I/O cleanup */ + } + + /* + * If we have to get a tar header + */ + if (getheader >= 1) + { + /* + * if we met the end of the tar + * or the end-of-tar block, + * we are done + */ + if (len == 0 || buffer.header.name[0] == 0) + break; + + tarmode = getoct(buffer.header.mode,8); + tartime = (time_t)getoct(buffer.header.mtime,12); + if (tarmode == -1 || tartime == (time_t)-1) + { + buffer.header.name[0] = 0; + action = TGZ_INVALID; + } + + if (getheader == 1) + { + strncpy(fname,buffer.header.name,SHORTNAMESIZE); + if (fname[SHORTNAMESIZE-1] != 0) + fname[SHORTNAMESIZE] = 0; + } + else + { + /* + * The file name is longer than SHORTNAMESIZE + */ + if (strncmp(fname,buffer.header.name,SHORTNAMESIZE-1) != 0) + error("bad long name"); + getheader = 1; + } + + /* + * Act according to the type flag + */ + switch (buffer.header.typeflag) + { + case DIRTYPE: + if (action == TGZ_LIST) + printf(" %s %s\n",strtime(&tartime),fname); + if (action == TGZ_EXTRACT) + { + makedir(fname); + push_attr(&attributes,fname,tarmode,tartime); + } + break; + case REGTYPE: + case AREGTYPE: + remaining = getoct(buffer.header.size,12); + if (remaining == -1) + { + action = TGZ_INVALID; + break; + } + if (action == TGZ_LIST) + printf(" %s %9d %s\n",strtime(&tartime),remaining,fname); + else if (action == TGZ_EXTRACT) + { + if (matchname(arg,argc,argv,fname)) + { + outfile = fopen(fname,"wb"); + if (outfile == NULL) { + /* try creating directory */ + char *p = strrchr(fname, '/'); + if (p != NULL) { + *p = '\0'; + makedir(fname); + *p = '/'; + outfile = fopen(fname,"wb"); + } + } + if (outfile != NULL) + printf("Extracting %s\n",fname); + else + fprintf(stderr, "%s: Couldn't create %s",prog,fname); + } + else + outfile = NULL; + } + getheader = 0; + break; + case GNUTYPE_LONGLINK: + case GNUTYPE_LONGNAME: + remaining = getoct(buffer.header.size,12); + if (remaining < 0 || remaining >= BLOCKSIZE) + { + action = TGZ_INVALID; + break; + } + len = gzread(in, fname, BLOCKSIZE); + if (len < 0) + error(gzerror(in, &err)); + if (fname[BLOCKSIZE-1] != 0 || (int)strlen(fname) > remaining) + { + action = TGZ_INVALID; + break; + } + getheader = 2; + break; + default: + if (action == TGZ_LIST) + printf(" %s <---> %s\n",strtime(&tartime),fname); + break; + } + } + else + { + unsigned int bytes = (remaining > BLOCKSIZE) ? BLOCKSIZE : remaining; + + if (outfile != NULL) + { + if (fwrite(&buffer,sizeof(char),bytes,outfile) != bytes) + { + fprintf(stderr, + "%s: Error writing %s -- skipping\n",prog,fname); + fclose(outfile); + outfile = NULL; + remove(fname); + } + } + remaining -= bytes; + } + + if (remaining == 0) + { + getheader = 1; + if (outfile != NULL) + { + fclose(outfile); + outfile = NULL; + if (action != TGZ_INVALID) + push_attr(&attributes,fname,tarmode,tartime); + } + } + + /* + * Abandon if errors are found + */ + if (action == TGZ_INVALID) + { + error("broken archive"); + break; + } + } + + /* + * Restore file modes and time stamps + */ + restore_attr(&attributes); + + if (gzclose(in) != Z_OK) + error("failed gzclose"); + + return 0; +} + + +/* ============================================================ */ + +void help(int exitval) +{ + printf("untgz version 0.2.1\n" + " using zlib version %s\n\n", + zlibVersion()); + printf("Usage: untgz file.tgz extract all files\n" + " untgz file.tgz fname ... extract selected files\n" + " untgz -l file.tgz list archive contents\n" + " untgz -h display this help\n"); + exit(exitval); +} + +void error(const char *msg) +{ + fprintf(stderr, "%s: %s\n", prog, msg); + exit(1); +} + + +/* ============================================================ */ + +#if defined(WIN32) && defined(__GNUC__) +int _CRT_glob = 0; /* disable argument globbing in MinGW */ +#endif + +int main(int argc,char **argv) +{ + int action = TGZ_EXTRACT; + int arg = 1; + char *TGZfile; + gzFile *f; + + prog = strrchr(argv[0],'\\'); + if (prog == NULL) + { + prog = strrchr(argv[0],'/'); + if (prog == NULL) + { + prog = strrchr(argv[0],':'); + if (prog == NULL) + prog = argv[0]; + else + prog++; + } + else + prog++; + } + else + prog++; + + if (argc == 1) + help(0); + + if (strcmp(argv[arg],"-l") == 0) + { + action = TGZ_LIST; + if (argc == ++arg) + help(0); + } + else if (strcmp(argv[arg],"-h") == 0) + { + help(0); + } + + if ((TGZfile = TGZfname(argv[arg])) == NULL) + TGZnotfound(argv[arg]); + + ++arg; + if ((action == TGZ_LIST) && (arg != argc)) + help(1); + +/* + * Process the TGZ file + */ + switch(action) + { + case TGZ_LIST: + case TGZ_EXTRACT: + f = gzopen(TGZfile,"rb"); + if (f == NULL) + { + fprintf(stderr,"%s: Couldn't gzopen %s\n",prog,TGZfile); + return 1; + } + exit(tar(f, action, arg, argc, argv)); + break; + + default: + error("Unknown option"); + exit(1); + } + + return 0; +} diff --git a/cpukit/zlib/contrib/vstudio/readme.txt b/cpukit/zlib/contrib/vstudio/readme.txt new file mode 100644 index 0000000000..e709d1b9d9 --- /dev/null +++ b/cpukit/zlib/contrib/vstudio/readme.txt @@ -0,0 +1,55 @@ +Building instructions for the DLL versions of Zlib 1.2.x +======================================================= + +This directory contains projects that build zlib and minizip using +Microsoft Visual C++ 7.0/7.1. + +You don't need to build these projects yourself. You can download the +binaries from: + http://www.winimage.com/zLibDll + +More information can be found at this site. + + +Build instructions +------------------ +- Unzip zlib*.zip and copy the files from contrib\vstudio\vc7, + from contrib\vstudio\masmx86 and from contrib\minizip into the same + directory. +- Download the crtdll library from + http://www.winimage.com/zLibDll/crtdll.zip + Unzip crtdll.zip to extract crtdll.lib. +- If you are using x86, use the Release target. +- Open zlibvc.sln with Microsoft Visual C++ 7.0 or 7.1 + (Visual Studio .Net 2002 or 2003). + + +Important +--------- +- To use zlibwapi.dll in your application, you must define the + macro ZLIB_WINAPI when compiling your application's source files. + + +Additional notes +---------------- +- This DLL, named zlibwapi.dll, is compatible to the old zlib.dll built + by Gilles Vollant from the zlib 1.1.x sources, and distributed at + http://www.winimage.com/zLibDll + It uses the WINAPI calling convention for the exported functions, and + includes the minizip functionality. If your application needs that + particular build of zlib.dll, you can rename zlibwapi.dll to zlib.dll. + +- The new DLL was renamed because there exist several incompatible + versions of zlib.dll on the Internet. + +- There is also an official DLL build of zlib, named zlib1.dll. This one + is exporting the functions using the CDECL convention. See the file + win32\DLL_FAQ.txt found in this zlib distribution. + +- There used to be a ZLIB_DLL macro in zlib 1.1.x, but now this symbol + has a slightly different effect. To avoid compatibility problems, do + not define it here. + + +Gilles Vollant +info@winimage.com diff --git a/cpukit/zlib/contrib/vstudio/vc7/miniunz.vcproj b/cpukit/zlib/contrib/vstudio/vc7/miniunz.vcproj new file mode 100644 index 0000000000..935c250e5f --- /dev/null +++ b/cpukit/zlib/contrib/vstudio/vc7/miniunz.vcproj @@ -0,0 +1,124 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/cpukit/zlib/contrib/vstudio/vc7/minizip.vcproj b/cpukit/zlib/contrib/vstudio/vc7/minizip.vcproj new file mode 100644 index 0000000000..e6f910742c --- /dev/null +++ b/cpukit/zlib/contrib/vstudio/vc7/minizip.vcproj @@ -0,0 +1,124 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/cpukit/zlib/contrib/vstudio/vc7/zlib.rc b/cpukit/zlib/contrib/vstudio/vc7/zlib.rc new file mode 100644 index 0000000000..d35cef0519 --- /dev/null +++ b/cpukit/zlib/contrib/vstudio/vc7/zlib.rc @@ -0,0 +1,32 @@ +#include + +#define IDR_VERSION1 1 +IDR_VERSION1 VERSIONINFO MOVEABLE IMPURE LOADONCALL DISCARDABLE + FILEVERSION 1,2,2,2 + PRODUCTVERSION 1,2,2,2 + FILEFLAGSMASK VS_FFI_FILEFLAGSMASK + FILEFLAGS 0 + FILEOS VOS_DOS_WINDOWS32 + FILETYPE VFT_DLL + FILESUBTYPE 0 // not used +BEGIN + BLOCK "StringFileInfo" + BEGIN + BLOCK "040904E4" + //language ID = U.S. English, char set = Windows, Multilingual + + BEGIN + VALUE "FileDescription", "zlib data compression library\0" + VALUE "FileVersion", "1.2.2.2\0" + VALUE "InternalName", "zlib\0" + VALUE "OriginalFilename", "zlib.dll\0" + VALUE "ProductName", "ZLib.DLL\0" + VALUE "Comments","DLL support by Alessandro Iacopetti & Gilles Vollant\0" + VALUE "LegalCopyright", "(C) 1995-2003 Jean-loup Gailly & Mark Adler\0" + END + END + BLOCK "VarFileInfo" + BEGIN + VALUE "Translation", 0x0409, 1252 + END +END diff --git a/cpukit/zlib/contrib/vstudio/vc7/zlibstat.vcproj b/cpukit/zlib/contrib/vstudio/vc7/zlibstat.vcproj new file mode 100644 index 0000000000..eb182f7a88 --- /dev/null +++ b/cpukit/zlib/contrib/vstudio/vc7/zlibstat.vcproj @@ -0,0 +1,242 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/cpukit/zlib/contrib/vstudio/vc7/zlibvc.def b/cpukit/zlib/contrib/vstudio/vc7/zlibvc.def new file mode 100644 index 0000000000..6bc26c4db4 --- /dev/null +++ b/cpukit/zlib/contrib/vstudio/vc7/zlibvc.def @@ -0,0 +1,92 @@ + +VERSION 1.21 + +HEAPSIZE 1048576,8192 + +EXPORTS + adler32 @1 + compress @2 + crc32 @3 + deflate @4 + deflateCopy @5 + deflateEnd @6 + deflateInit2_ @7 + deflateInit_ @8 + deflateParams @9 + deflateReset @10 + deflateSetDictionary @11 + gzclose @12 + gzdopen @13 + gzerror @14 + gzflush @15 + gzopen @16 + gzread @17 + gzwrite @18 + inflate @19 + inflateEnd @20 + inflateInit2_ @21 + inflateInit_ @22 + inflateReset @23 + inflateSetDictionary @24 + inflateSync @25 + uncompress @26 + zlibVersion @27 + gzprintf @28 + gzputc @29 + gzgetc @30 + gzseek @31 + gzrewind @32 + gztell @33 + gzeof @34 + gzsetparams @35 + zError @36 + inflateSyncPoint @37 + get_crc_table @38 + compress2 @39 + gzputs @40 + gzgets @41 + inflateCopy @42 + inflateBackInit_ @43 + inflateBack @44 + inflateBackEnd @45 + compressBound @46 + deflateBound @47 + gzclearerr @48 + gzungetc @49 + zlibCompileFlags @50 + deflatePrime @51 + + unzOpen @61 + unzClose @62 + unzGetGlobalInfo @63 + unzGetCurrentFileInfo @64 + unzGoToFirstFile @65 + unzGoToNextFile @66 + unzOpenCurrentFile @67 + unzReadCurrentFile @68 + unzOpenCurrentFile3 @69 + unztell @70 + unzeof @71 + unzCloseCurrentFile @72 + unzGetGlobalComment @73 + unzStringFileNameCompare @74 + unzLocateFile @75 + unzGetLocalExtrafield @76 + unzOpen2 @77 + unzOpenCurrentFile2 @78 + unzOpenCurrentFilePassword @79 + + zipOpen @80 + zipOpenNewFileInZip @81 + zipWriteInFileInZip @82 + zipCloseFileInZip @83 + zipClose @84 + zipOpenNewFileInZip2 @86 + zipCloseFileInZipRaw @87 + zipOpen2 @88 + zipOpenNewFileInZip3 @89 + + unzGetFilePos @100 + unzGoToFilePos @101 + + fill_win32_filefunc @110 diff --git a/cpukit/zlib/contrib/vstudio/vc7/zlibvc.sln b/cpukit/zlib/contrib/vstudio/vc7/zlibvc.sln new file mode 100644 index 0000000000..5a007ff697 --- /dev/null +++ b/cpukit/zlib/contrib/vstudio/vc7/zlibvc.sln @@ -0,0 +1,66 @@ +Microsoft Visual Studio Solution File, Format Version 7.00 +Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zlibstat", "zlibstat.vcproj", "{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}" +EndProject +Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zlibvc", "zlibvc.vcproj", "{8FD826F8-3739-44E6-8CC8-997122E53B8D}" +EndProject +Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "minizip", "minizip.vcproj", "{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}" +EndProject +Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "miniunz", "miniunz.vcproj", "{C52F9E7B-498A-42BE-8DB4-85A15694382A}" +EndProject +Global + GlobalSection(SolutionConfiguration) = preSolution + ConfigName.0 = Debug + ConfigName.1 = Release + ConfigName.2 = ReleaseAxp + ConfigName.3 = ReleaseWithoutAsm + ConfigName.4 = ReleaseWithoutCrtdll + EndGlobalSection + GlobalSection(ProjectDependencies) = postSolution + EndGlobalSection + GlobalSection(ProjectConfiguration) = postSolution + {745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug.ActiveCfg = Debug|Win32 + {745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug.Build.0 = Debug|Win32 + {745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release.ActiveCfg = Release|Win32 + {745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release.Build.0 = Release|Win32 + {745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseAxp.ActiveCfg = ReleaseAxp|Win32 + {745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseAxp.Build.0 = ReleaseAxp|Win32 + {745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm.ActiveCfg = ReleaseWithoutAsm|Win32 + {745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm.Build.0 = ReleaseWithoutAsm|Win32 + {745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutCrtdll.ActiveCfg = ReleaseAxp|Win32 + {745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutCrtdll.Build.0 = ReleaseAxp|Win32 + {8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug.ActiveCfg = Debug|Win32 + {8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug.Build.0 = Debug|Win32 + {8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release.ActiveCfg = Release|Win32 + {8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release.Build.0 = Release|Win32 + {8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseAxp.ActiveCfg = ReleaseAxp|Win32 + {8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseAxp.Build.0 = ReleaseAxp|Win32 + {8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm.ActiveCfg = ReleaseWithoutAsm|Win32 + {8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm.Build.0 = ReleaseWithoutAsm|Win32 + {8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutCrtdll.ActiveCfg = ReleaseWithoutCrtdll|Win32 + {8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutCrtdll.Build.0 = ReleaseWithoutCrtdll|Win32 + {48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Debug.ActiveCfg = Debug|Win32 + {48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Debug.Build.0 = Debug|Win32 + {48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release.ActiveCfg = Release|Win32 + {48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release.Build.0 = Release|Win32 + {48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.ReleaseAxp.ActiveCfg = Release|Win32 + {48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.ReleaseAxp.Build.0 = Release|Win32 + {48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm.ActiveCfg = Release|Win32 + {48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm.Build.0 = Release|Win32 + {48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutCrtdll.ActiveCfg = Release|Win32 + {48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutCrtdll.Build.0 = Release|Win32 + {C52F9E7B-498A-42BE-8DB4-85A15694382A}.Debug.ActiveCfg = Debug|Win32 + {C52F9E7B-498A-42BE-8DB4-85A15694382A}.Debug.Build.0 = Debug|Win32 + {C52F9E7B-498A-42BE-8DB4-85A15694382A}.Release.ActiveCfg = Release|Win32 + {C52F9E7B-498A-42BE-8DB4-85A15694382A}.Release.Build.0 = Release|Win32 + {C52F9E7B-498A-42BE-8DB4-85A15694382A}.ReleaseAxp.ActiveCfg = Release|Win32 + {C52F9E7B-498A-42BE-8DB4-85A15694382A}.ReleaseAxp.Build.0 = Release|Win32 + {C52F9E7B-498A-42BE-8DB4-85A15694382A}.ReleaseWithoutAsm.ActiveCfg = Release|Win32 + {C52F9E7B-498A-42BE-8DB4-85A15694382A}.ReleaseWithoutAsm.Build.0 = Release|Win32 + {C52F9E7B-498A-42BE-8DB4-85A15694382A}.ReleaseWithoutCrtdll.ActiveCfg = Release|Win32 + {C52F9E7B-498A-42BE-8DB4-85A15694382A}.ReleaseWithoutCrtdll.Build.0 = Release|Win32 + EndGlobalSection + GlobalSection(ExtensibilityGlobals) = postSolution + EndGlobalSection + GlobalSection(ExtensibilityAddIns) = postSolution + EndGlobalSection +EndGlobal diff --git a/cpukit/zlib/contrib/vstudio/vc7/zlibvc.vcproj b/cpukit/zlib/contrib/vstudio/vc7/zlibvc.vcproj new file mode 100644 index 0000000000..4e57bcdff6 --- /dev/null +++ b/cpukit/zlib/contrib/vstudio/vc7/zlibvc.vcproj @@ -0,0 +1,436 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + -- cgit v1.2.3