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diff --git a/posix1003-1/files_and_directories.rst b/posix1003-1/files_and_directories.rst new file mode 100644 index 0000000..2e7dd1f --- /dev/null +++ b/posix1003-1/files_and_directories.rst @@ -0,0 +1,255 @@ +.. comment SPDX-License-Identifier: CC-BY-SA-4.0 + +Files and Directories +##################### + +Directories +=========== + +Format of Directory Entries +--------------------------- + +Directory Operations +-------------------- + +.. code:: c + + struct dirent, Type, Implemented + opendir(), Function, Implemented + readdir(), Function, Implemented + readdir_r(), Function, Implemented + rewinddir(), Function, Implemented + closedir(), Function, Implemented + +Working Directory +================= + +Change Current Working Directory +-------------------------------- + +.. code:: c + + chdir(), Function, Implemented + +Get Working Directory Pathname +------------------------------ + +.. code:: c + + getcwd(), Function, Implemented + +General File Creation +===================== + +Open a File +----------- + +.. code:: c + + open(), Function, Implemented + O_RDONLY, Constant, Implemented + O_WRONLY, Constant, Implemented + O_RDWR, Constant, Implemented + O_APPEND, Constant, Implemented + O_CREAT, Constant, Implemented + O_DSYNC, Constant, Unimplemented + O_EXCL, Constant, Implemented + O_NOCTTY, Constant, Implemented + O_NONBLOCK, Constant, Implemented + O_RSYNC, Constant, Unimplemented + O_SYNC, Constant, Implemented + O_TRUNC, Constant, Implemented + +NOTE: In the newlib fcntl.h, O_SYNC is defined only if _POSIX_SOURCE is +not defined. This seems wrong. + +Create a New File or Rewrite an Existing One +-------------------------------------------- + +.. code:: c + + creat(), Function, Implemented + +Set File Creation Mask +---------------------- + +.. code:: c + + umask(), Function, Implemented + +Link to a File +-------------- + +.. code:: c + + link(), Function, Implemented + +Special File Creation +===================== + +Make a Directory +---------------- + +.. code:: c + + mkdir(), Function, Implemented + +Make a FIFO Special File +------------------------ + +.. code:: c + + mkfifo(), Function, Untested Implementation + +NOTE: mkfifo() is implemented but no filesystem supports FIFOs. + +File Removal +============ + +Remove Directory Entries +------------------------ + +.. code:: c + + unlink(), Function, Implemented + +Remove a Directory +------------------ + +.. code:: c + + rmdir(), Function, Implemented + +Rename a File +------------- + +.. code:: c + + rename(), Function, Partial Implementation + +File Characteristics +==================== + +File Characteristics Header and Data Structure +---------------------------------------------- + +.. code:: c + + struct stat, Type, Implemented + +<sys/stat.h> File Types +~~~~~~~~~~~~~~~~~~~~~~~ + +.. code:: c + + S_ISBLK(), Function, Implemented + S_ISCHR(), Function, Implemented + S_ISDIR(), Function, Implemented + S_ISFIFO(), Function, Implemented + S_ISREG(), Function, Implemented + S_TYPEISMQ(), Function, Unimplemented + S_TYPEISSEM(), Function, Unimplemented + S_TYPEISSHM(), Function, Unimplemented + +<sys/stat.h> File Modes +~~~~~~~~~~~~~~~~~~~~~~~ + +.. code:: c + + S_IRWXU, Constant, Implemented + S_IRUSR, Constant, Implemented + S_IWUSR, Constant, Implemented + S_IXUSR, Constant, Implemented + S_IRWXG, Constant, Implemented + S_IRGRP, Constant, Implemented + S_IWGRP, Constant, Implemented + S_IXGRP, Constant, Implemented + S_IRWXO, Constant, Implemented + S_IROTH, Constant, Implemented + S_IWOTH, Constant, Implemented + S_IXOTH, Constant, Implemented + S_ISUID, Constant, Implemented + S_ISGID, Constant, Implemented + +<sys/stat.h> Time Entries +~~~~~~~~~~~~~~~~~~~~~~~~~ + +Get File Status +--------------- + +.. code:: c + + stat(), Function, Implemented + fstat(), Function, Implemented + +Check File Accessibility +------------------------ + +.. code:: c + + access(), Function, Implemented + +Change File Modes +----------------- + +.. code:: c + + chmod(), Function, Implemented + fchmod(), Function, Implemented + +Change Owner and Group of a File +-------------------------------- + +.. code:: c + + chown(), Function, Implemented + +Set File Access and Modification Times +-------------------------------------- + +.. code:: c + + struct utimbuf, Type, Implemented + utime(), Function, Implemented + +Truncate a File to a Specified Length +------------------------------------- + +.. code:: c + + ftruncate(), Function, Implemented + +Configurable Pathname Variable +============================== + +Get Configurable Pathname Variables +----------------------------------- + +.. code:: c + + pathconf(), Function, Implemented + fpathconf(), Function, Implemented + _PC_LINK_MAX, Constant, Implemented + _PC_MAX_CANON, Constant, Implemented + _PC_MAX_INPUT, Constant, Implemented + _PC_MAX_INPUT, Constant, Implemented + _PC_NAME_MAX, Constant, Implemented + _PC_PATH_MAX, Constant, Implemented + _PC_PIPE_BUF, Constant, Implemented + _PC_ASYNC_IO, Constant, Implemented + _PC_CHOWN_RESTRICTED, Constant, Implemented + _PC_NO_TRUNC, Constant, Implemented + _PC_PRIO_IO, Constant, Implemented + _PC_SYNC_IO, Constant, Implemented + _PC_VDISABLE, Constant, Implemented + +NOTE: The newlib unistd.h and sys/unistd.h are installed and the +include search patch is used to get the right one. There are +conflicts between the newlib unistd.h and RTEMS' version. + +.. COMMENT: COPYRIGHT (c) 1988-2002. + +.. COMMENT: On-Line Applications Research Corporation (OAR). + +.. COMMENT: All rights reserved. + |