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.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
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 General Public License for more details.
16 You should have received a copy of the GNU 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. */
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
26 #ifndef _GL_SYS_SOCKET_H
28 #if @HAVE_SYS_SOCKET_H@
30 @PRAGMA_SYSTEM_HEADER@
32 /* On many platforms, <sys/socket.h> assumes prior inclusion of
34 # include <sys/types.h>
36 /* The include_next requires a split double-inclusion guard. */
37 # @INCLUDE_NEXT@ @NEXT_SYS_SOCKET_H@
41 #ifndef _GL_SYS_SOCKET_H
42 #define _GL_SYS_SOCKET_H
44 #if @HAVE_SYS_SOCKET_H@
46 /* A platform that has <sys/socket.h>. */
55 # if !defined SHUT_RDWR
62 # error "Cygwin does have a sys/socket.h, doesn't it?!?"
65 /* A platform that lacks <sys/socket.h>.
67 Currently only MinGW is supported. See the gnulib manual regarding
68 Windows sockets. MinGW has the header files winsock2.h and
69 ws2tcpip.h that declare the sys/socket.h definitions we need. Note
70 that you can influence which definitions you get by setting the
71 WINVER symbol before including these two files. For example,
72 getaddrinfo is only available if _WIN32_WINNT >= 0x0501 (that
73 symbol is set indiriectly through WINVER). You can set this by
74 adding AC_DEFINE(WINVER, 0x0501) to configure.ac. Note that your
75 code may not run on older Windows releases then. My Windows 2000
76 box was not able to run the code, for example. The situation is
77 slightly confusing because:
78 http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winsock/winsock/getaddrinfo_2.asp
79 suggests that getaddrinfo should be available on all Windows
83 # if @HAVE_WINSOCK2_H@
84 # include <winsock2.h>
86 # if @HAVE_WS2TCPIP_H@
87 # include <ws2tcpip.h>
91 # if !defined SHUT_RD && defined SD_RECEIVE
92 # define SHUT_RD SD_RECEIVE
94 # if !defined SHUT_WR && defined SD_SEND
95 # define SHUT_WR SD_SEND
97 # if !defined SHUT_RDWR && defined SD_BOTH
98 # define SHUT_RDWR SD_BOTH
101 # if @HAVE_WINSOCK2_H@
102 /* Include headers needed by the emulation code. */
103 # include <sys/types.h>
106 typedef int socklen_t;
108 /* Re-define FD_ISSET to avoid a WSA call while we are not using
111 rpl_fd_isset (int fd, fd_set * set)
117 for (i = 0; i < set->fd_count; i++)
118 if (set->fd_array[i] == fd)
125 # define FD_ISSET(fd, set) rpl_fd_isset(fd, set)
127 /* Wrap everything else to use libc file descriptors for sockets. */
130 # define close rpl_close
132 # define socket rpl_socket
134 # define connect rpl_connect
136 # define accept rpl_accept
138 # define bind rpl_bind
140 # define getpeername rpl_getpeername
142 # define getsockname rpl_getsockname
144 # define getsockopt rpl_getsockopt
146 # define listen rpl_listen
148 # define ioctl rpl_ioctl
150 # define recv rpl_recv
152 # define send rpl_send
154 # define recvfrom rpl_recvfrom
156 # define sendto rpl_sendto
158 # define setsockopt rpl_setsockopt
161 # define select select_not_supported_under_win32_use_poll
163 extern int rpl_close(int);
164 extern int rpl_socket (int, int, int protocol);
165 extern int rpl_connect (int, struct sockaddr *, int);
166 extern int rpl_accept (int, struct sockaddr *, int *);
167 extern int rpl_bind (int, struct sockaddr *, int);
168 extern int rpl_getpeername (int, struct sockaddr *, int *);
169 extern int rpl_getsockname (int, struct sockaddr *, int *);
170 extern int rpl_getsockopt (int, int, int, void *, int *);
171 extern int rpl_listen (int, int);
172 extern int rpl_ioctl (int, unsigned long, char *);
173 extern int rpl_recv (int, void *, int, int);
174 extern int rpl_send (int, const void *, int, int);
175 extern int rpl_recvfrom (int, void *, int, int, struct sockaddr *, int *);
176 extern int rpl_sendto (int, const void *, int, int, struct sockaddr *, int);
177 extern int rpl_setsockopt (int, int, int, const void *, int);
179 # endif /* HAVE_WINSOCK2_H */
181 #endif /* HAVE_SYS_SOCKET_H */
183 #endif /* _GL_SYS_SOCKET_H */
184 #endif /* _GL_SYS_SOCKET_H */