lgl/sys_socket.in.h

   1 /* Provide a sys/socket header file for systems lacking it (read: MinGW)
   2    and for systems where it is incomplete.
   3    Copyright (C) 2005-2008 Free Software Foundation, Inc.
   4    Written by Simon Josefsson.
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU Lesser General Public License as published by
   8    the Free Software Foundation; either version 2.1, or (at your option)
   9    any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public License
  17    along with this program; if not, write to the Free Software Foundation,
  18    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
  19
  20 /* This file is supposed to be used on platforms that lack <sys/socket.h>,
  21    on platforms where <sys/socket.h> cannot be included standalone, and on
  22    platforms where <sys/socket.h> does not provide all necessary definitions.
  23    It is intended to provide definitions and prototypes needed by an
  24    application.  */
  25
  26 #ifndef _GL_SYS_SOCKET_H
  27
  28 #if @HAVE_SYS_SOCKET_H@
  29
  30 /* On many platforms, <sys/socket.h> assumes prior inclusion of
  31    <sys/types.h>.  */
  32 # include <sys/types.h>
  33
  34 /* The include_next requires a split double-inclusion guard.  */
  35 # @INCLUDE_NEXT@ @NEXT_SYS_SOCKET_H@
  36
  37 #endif
  38
  39 #ifndef _GL_SYS_SOCKET_H
  40 #define _GL_SYS_SOCKET_H
  41
  42 #if @HAVE_SYS_SOCKET_H@
  43
  44 /* A platform that has <sys/socket.h>.  */
  45
  46 /* For shutdown().  */
  47 # if !defined SHUT_RD
  48 #  define SHUT_RD 0
  49 # endif
  50 # if !defined SHUT_WR
  51 #  define SHUT_WR 1
  52 # endif
  53 # if !defined SHUT_RDWR
  54 #  define SHUT_RDWR 2
  55 # endif
  56
  57 #else
  58
  59 /* A platform that lacks <sys/socket.h>.
  60
  61    Currently only MinGW is supported.  See the gnulib manual regarding
  62    Windows sockets.  MinGW has the header files winsock2.h and
  63    ws2tcpip.h that declare the sys/socket.h definitions we need.  Note
  64    that you can influence which definitions you get by setting the
  65    WINVER symbol before including these two files.  For example,
  66    getaddrinfo is only available if _WIN32_WINNT >= 0x0501 (that
  67    symbol is set indiriectly through WINVER).  You can set this by
  68    adding AC_DEFINE(WINVER, 0x0501) to configure.ac.  Note that your
  69    code may not run on older Windows releases then.  My Windows 2000
  70    box was not able to run the code, for example.  The situation is
  71    slightly confusing because:
  72    http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winsock/winsock/getaddrinfo_2.asp
  73    suggests that getaddrinfo should be available on all Windows
  74    releases. */
  75
  76
  77 # if @HAVE_WINSOCK2_H@
  78 #  include <winsock2.h>
  79 # endif
  80 # if @HAVE_WS2TCPIP_H@
  81 #  include <ws2tcpip.h>
  82 # endif
  83
  84 /* For shutdown(). */
  85 # if !defined SHUT_RD && defined SD_RECEIVE
  86 #  define SHUT_RD SD_RECEIVE
  87 # endif
  88 # if !defined SHUT_WR && defined SD_SEND
  89 #  define SHUT_WR SD_SEND
  90 # endif
  91 # if !defined SHUT_RDWR && defined SD_BOTH
  92 #  define SHUT_RDWR SD_BOTH
  93 # endif
  94
  95 # if defined _WIN32 || defined __WIN32__
  96 #  define ENOTSOCK                WSAENOTSOCK
  97 #  define EADDRINUSE              WSAEADDRINUSE
  98 #  define ENETRESET               WSAENETRESET
  99 #  define ECONNABORTED            WSAECONNABORTED
 100 #  define ECONNRESET              WSAECONNRESET
 101 #  define ENOTCONN                WSAENOTCONN
 102 #  define ESHUTDOWN               WSAESHUTDOWN
 103 # endif
 104
 105 # if (defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__
 106 #  define setsockopt(a,b,c,d,e) rpl_setsockopt(a,b,c,d,e)
 107 static inline int
 108 rpl_setsockopt(int socket, int level, int optname, const void *optval,
 109                socklen_t optlen)
 110 {
 111   return (setsockopt)(socket, level, optname, optval, optlen);
 112 }
 113 # endif
 114
 115 #endif /* HAVE_SYS_SOCKET_H */
 116
 117 #endif /* _GL_SYS_SOCKET_H */
 118 #endif /* _GL_SYS_SOCKET_H */