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-----------------------------------------------------------------------------
-- --
-- ADASOCKETS COMPONENTS --
-- --
-- S O C K E T S --
-- --
-- S p e c --
-- --
-- $ReleaseVersion: 0.1.3 $ --
-- --
-- Copyright (C) 1998 École Nationale Supérieure des Télécommunications --
-- --
-- AdaSockets is free software; you can redistribute it and/or modify --
-- it under terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2, or (at your option) --
-- any later version. AdaSockets 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 distributed --
-- with AdaSockets; see file COPYING. If not, write to the Free --
-- Software Foundation, 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. --
-- --
-- The main repository for this software is located at: --
-- http://www-inf.enst.fr/ANC/ --
-- --
-----------------------------------------------------------------------------
with Ada.Streams;
with Interfaces.C;
package Sockets is
type Socket_FD is tagged private;
-- A socket
type Socket_Domain is (AF_INET);
-- AF_INET: Internet sockets (yes, should be PF_INET, but they hold the
-- same value)
type Socket_Type is (SOCK_STREAM, SOCK_DGRAM);
-- SOCK_STREAM: Stream mode (TCP)
-- SOCK_DGRAM: Datagram mode (UDP, Multicast)
procedure Socket
(Sock : out Socket_FD;
Domain : in Socket_Domain := AF_INET;
Typ : in Socket_Type := SOCK_STREAM);
-- Create a socket of the given mode
Connection_Refused : exception;
procedure Connect
(Socket : in Socket_FD;
Host : in String;
Port : in Positive);
-- Connect a socket on a given host/port. Raise Connection_Refused if
-- the connection has not been accepted by the other end.
procedure Bind
(Socket : in Socket_FD;
Port : in Positive);
-- Bind a socket on a given port
procedure Listen
(Socket : in Socket_FD;
Queue_Size : in Positive := 5);
-- Create a socket's listen queue
type Socket_Level is (SOL_SOCKET, IPPROTO_IP);
type Socket_Option is (SO_REUSEADDR, IP_MULTICAST_TTL,
IP_ADD_MEMBERSHIP, IP_DROP_MEMBERSHIP,
IP_MULTICAST_LOOP);
procedure Setsockopt
(Socket : in Socket_FD'Class;
Level : in Socket_Level := SOL_SOCKET;
Optname : in Socket_Option;
Optval : in Integer);
-- Set a socket option
generic
Level : Socket_Level;
Optname : Socket_Option;
type Opt_Type is private;
procedure Customized_Setsockopt (Socket : in Socket_FD'Class;
Optval : in Opt_Type);
-- Low level control on setsockopt
procedure Accept_Socket (Socket : in Socket_FD;
New_Socket : out Socket_FD);
-- Accept a connection on a socket
Connection_Closed : exception;
procedure Send (Socket : in Socket_FD;
Data : in Ada.Streams.Stream_Element_Array);
-- Send data on a socket. Raise Connection_Closed if the socket
-- has been closed.
function Receive (Socket : Socket_FD;
Max : Ada.Streams.Stream_Element_Count := 4096)
return Ada.Streams.Stream_Element_Array;
-- Receive data from a socket. May raise Connection_Closed
procedure Receive (Socket : in Socket_FD'Class;
Data : out Ada.Streams.Stream_Element_Array);
-- Fill data from a socket. Raise Connection_Closed if the socket has
-- been closed before the end of the array.
type Shutdown_Type is (Receive, Send, Both);
procedure Shutdown (Socket : in Socket_FD;
How : in Shutdown_Type := Both);
-- Close a previously opened socket
---------------------------------
-- String-oriented subprograms --
---------------------------------
procedure Put (Socket : in Socket_FD'Class;
Str : in String);
-- Send a string on the socket
procedure New_Line (Socket : in Socket_FD'Class;
Count : in Natural := 1);
-- Send CR/LF sequences on the socket
procedure Put_Line (Socket : in Socket_FD'Class;
Str : in String);
-- Send a string + CR/LF on the socket
function Get (Socket : Socket_FD'Class) return String;
-- Get a string from the socket
function Get_Line (Socket : Socket_FD'Class) return String;
-- Get a full line from the socket. CR is ignored and LF is considered
-- as an end-of-line marker.
private
type Socket_FD is tagged record
FD : Interfaces.C.int;
end record;
end Sockets;
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