lgl/sys_socket_.h

   1 /* Provide a sys/socket header file for systems lacking it (read: MinGW).
   2    Copyright (C) 2005, 2006, 2007 Free Software Foundation, Inc.
   3    Written by Simon Josefsson.
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU Lesser General Public License as published by
   7    the Free Software Foundation; either version 2.1, or (at your option)
   8    any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public License
  16    along with this program; if not, write to the Free Software Foundation,
  17    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
  18
  19 #ifndef _GL_SYS_SOCKET_H
  20 #define _GL_SYS_SOCKET_H
  21
  22 /* This file is supposed to be used on platforms that lack <sys/socket.h>
  23    and on platforms where <sys/socket.h> cannot be included standalone.
  24    It is intended to provide definitions and prototypes needed by an
  25    application.  */
  26
  27 #if @HAVE_SYS_SOCKET_H@
  28
  29 /* On many platforms, <sys/socket.h> assumes prior inclusion of
  30    <sys/types.h>.  */
  31
  32 # include <sys/types.h>
  33
  34 # if @HAVE_INCLUDE_NEXT@
  35 #  include_next <sys/socket.h>
  36 # else
  37 #  include @ABSOLUTE_SYS_SOCKET_H@
  38 # endif
  39
  40 #else
  41
  42 /* A platform that lacks <sys/socket.h>.
  43
  44    Currently only MinGW is supported.  See the gnulib manual regarding
  45    Windows sockets.  MinGW has the header files winsock2.h and
  46    ws2tcpip.h that declare the sys/socket.h definitions we need.  Note
  47    that you can influence which definitions you get by setting the
  48    WINVER symbol before including these two files.  For example,
  49    getaddrinfo is only available if _WIN32_WINNT >= 0x0501 (that
  50    symbol is set indiriectly through WINVER).  You can set this by
  51    adding AC_DEFINE(WINVER, 0x0501) to configure.ac.  Note that your
  52    code may not run on older Windows releases then.  My Windows 2000
  53    box was not able to run the code, for example.  The situation is
  54    slightly confusing because:
  55    http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winsock/winsock/getaddrinfo_2.asp
  56    suggests that getaddrinfo should be available on all Windows
  57    releases. */
  58
  59
  60 # if @HAVE_WINSOCK2_H@
  61 #  include <winsock2.h>
  62 # endif
  63 # if @HAVE_WS2TCPIP_H@
  64 #  include <ws2tcpip.h>
  65 # endif
  66
  67 /* For shutdown(). */
  68 # if !defined SHUT_RD && defined SD_RECEIVE
  69 #  define SHUT_RD SD_RECEIVE
  70 # endif
  71 # if !defined SHUT_WR && defined SD_SEND
  72 #  define SHUT_WR SD_SEND
  73 # endif
  74 # if !defined SHUT_RDWR && defined SD_BOTH
  75 #  define SHUT_RDWR SD_BOTH
  76 # endif
  77
  78 # if defined _WIN32 || defined __WIN32__
  79 #  define ENOTSOCK                WSAENOTSOCK
  80 #  define EADDRINUSE              WSAEADDRINUSE
  81 #  define ENETRESET               WSAENETRESET
  82 #  define ECONNABORTED            WSAECONNABORTED
  83 #  define ECONNRESET              WSAECONNRESET
  84 #  define ENOTCONN                WSAENOTCONN
  85 #  define ESHUTDOWN               WSAESHUTDOWN
  86 # endif
  87
  88 #endif /* HAVE_SYS_SOCKET_H */
  89
  90 #endif /* _GL_SYS_SOCKET_H */