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 /* The definition of GL_LINK_WARNING is copied here. */
103 # if @HAVE_WINSOCK2_H@
104 /* Include headers needed by the emulation code. */
105 # include <sys/types.h>
108 typedef int socklen_t;
116 # if @HAVE_WINSOCK2_H@
118 /* Re-define FD_ISSET to avoid a WSA call while we are not using
121 rpl_fd_isset (int fd, fd_set * set)
127 for (i = 0; i < set->fd_count; i++)
128 if (set->fd_array[i] == fd)
135 # define FD_ISSET(fd, set) rpl_fd_isset(fd, set)
139 /* Wrap everything else to use libc file descriptors for sockets. */
141 # if @HAVE_WINSOCK2_H@ && !defined _GL_UNISTD_H
143 # define close close_used_without_including_unistd_h
147 # if @HAVE_WINSOCK2_H@
149 # define socket rpl_socket
150 extern int rpl_socket (int, int, int protocol);
152 # elif @HAVE_WINSOCK2_H@
154 # define socket socket_used_without_requesting_gnulib_module_socket
155 # elif defined GNULIB_POSIXCHECK
157 # define socket(d,t,p) \
158 (GL_LINK_WARNING ("socket is not always POSIX compliant - " \
159 "use gnulib module socket for portability"), \
163 # if @GNULIB_CONNECT@
164 # if @HAVE_WINSOCK2_H@
166 # define connect rpl_connect
167 extern int rpl_connect (int, struct sockaddr *, int);
169 # elif @HAVE_WINSOCK2_H@
171 # define connect socket_used_without_requesting_gnulib_module_connect
172 # elif defined GNULIB_POSIXCHECK
174 # define connect(s,a,l) \
175 (GL_LINK_WARNING ("connect is not always POSIX compliant - " \
176 "use gnulib module connect for portability"), \
181 # if @HAVE_WINSOCK2_H@
183 # define accept rpl_accept
184 extern int rpl_accept (int, struct sockaddr *, int *);
186 # elif @HAVE_WINSOCK2_H@
188 # define accept accept_used_without_requesting_gnulib_module_accept
189 # elif defined GNULIB_POSIXCHECK
191 # define accept(s,a,l) \
192 (GL_LINK_WARNING ("accept is not always POSIX compliant - " \
193 "use gnulib module accept for portability"), \
198 # if @HAVE_WINSOCK2_H@
200 # define bind rpl_bind
201 extern int rpl_bind (int, struct sockaddr *, int);
203 # elif @HAVE_WINSOCK2_H@
205 # define bind bind_used_without_requesting_gnulib_module_bind
206 # elif defined GNULIB_POSIXCHECK
208 # define bind(s,a,l) \
209 (GL_LINK_WARNING ("bind is not always POSIX compliant - " \
210 "use gnulib module bind for portability"), \
214 # if @GNULIB_GETPEERNAME@
215 # if @HAVE_WINSOCK2_H@
217 # define getpeername rpl_getpeername
218 extern int rpl_getpeername (int, struct sockaddr *, int *);
220 # elif @HAVE_WINSOCK2_H@
222 # define getpeername getpeername_used_without_requesting_gnulib_module_getpeername
223 # elif defined GNULIB_POSIXCHECK
225 # define getpeername(s,a,l) \
226 (GL_LINK_WARNING ("getpeername is not always POSIX compliant - " \
227 "use gnulib module getpeername for portability"), \
228 getpeername (s, a, l))
231 # if @GNULIB_GETSOCKNAME@
232 # if @HAVE_WINSOCK2_H@
234 # define getsockname rpl_getsockname
235 extern int rpl_getsockname (int, struct sockaddr *, int *);
237 # elif @HAVE_WINSOCK2_H@
239 # define getsockname getsockname_used_without_requesting_gnulib_module_getsockname
240 # elif defined GNULIB_POSIXCHECK
242 # define getsockname(s,a,l) \
243 (GL_LINK_WARNING ("getsockname is not always POSIX compliant - " \
244 "use gnulib module getsockname for portability"), \
245 getsockname (s, a, l))
248 # if @GNULIB_GETSOCKOPT@
249 # if @HAVE_WINSOCK2_H@
251 # define getsockopt rpl_getsockopt
252 extern int rpl_getsockopt (int, int, int, void *, int *);
254 # elif @HAVE_WINSOCK2_H@
256 # define getsockopt getsockopt_used_without_requesting_gnulib_module_getsockopt
257 # elif defined GNULIB_POSIXCHECK
259 # define getsockopt(s,lvl,o,v,l) \
260 (GL_LINK_WARNING ("getsockopt is not always POSIX compliant - " \
261 "use gnulib module getsockopt for portability"), \
262 getsockopt (s, lvl, o, v, l))
266 # if @HAVE_WINSOCK2_H@
268 # define listen rpl_listen
269 extern int rpl_listen (int, int);
271 # elif @HAVE_WINSOCK2_H@
273 # define listen listen_used_without_requesting_gnulib_module_listen
274 # elif defined GNULIB_POSIXCHECK
276 # define listen(s,b) \
277 (GL_LINK_WARNING ("listen is not always POSIX compliant - " \
278 "use gnulib module listen for portability"), \
282 # if @HAVE_WINSOCK2_H@
284 # define ioctl rpl_ioctl
285 extern int rpl_ioctl (int, unsigned long, char *);
289 # if @HAVE_WINSOCK2_H@
291 # define recv rpl_recv
292 extern int rpl_recv (int, void *, int, int);
294 # elif @HAVE_WINSOCK2_H@
296 # define recv recv_used_without_requesting_gnulib_module_recv
297 # elif defined GNULIB_POSIXCHECK
299 # define recv(s,b,n,f) \
300 (GL_LINK_WARNING ("recv is not always POSIX compliant - " \
301 "use gnulib module recv for portability"), \
306 # if @HAVE_WINSOCK2_H@
308 # define send rpl_send
309 extern int rpl_send (int, const void *, int, int);
311 # elif @HAVE_WINSOCK2_H@
313 # define send send_used_without_requesting_gnulib_module_send
314 # elif defined GNULIB_POSIXCHECK
316 # define send(s,b,n,f) \
317 (GL_LINK_WARNING ("send is not always POSIX compliant - " \
318 "use gnulib module send for portability"), \
322 # if @GNULIB_RECVFROM@
323 # if @HAVE_WINSOCK2_H@
325 # define recvfrom rpl_recvfrom
326 extern int rpl_recvfrom (int, void *, int, int, struct sockaddr *, int *);
328 # elif @HAVE_WINSOCK2_H@
330 # define recvfrom recvfrom_used_without_requesting_gnulib_module_recvfrom
331 # elif defined GNULIB_POSIXCHECK
333 # define recvfrom(s,b,n,f,a,l) \
334 (GL_LINK_WARNING ("recvfrom is not always POSIX compliant - " \
335 "use gnulib module recvfrom for portability"), \
336 recvfrom (s, b, n, f, a, l))
340 # if @HAVE_WINSOCK2_H@
342 # define sendto rpl_sendto
343 extern int rpl_sendto (int, const void *, int, int, struct sockaddr *, int);
345 # elif @HAVE_WINSOCK2_H@
347 # define sendto sendto_used_without_requesting_gnulib_module_sendto
348 # elif defined GNULIB_POSIXCHECK
350 # define sendto(s,b,n,f,a,l) \
351 (GL_LINK_WARNING ("sendto is not always POSIX compliant - " \
352 "use gnulib module sendto for portability"), \
353 sendto (s, b, n, f, a, l))
356 # if @GNULIB_SETSOCKOPT@
357 # if @HAVE_WINSOCK2_H@
359 # define setsockopt rpl_setsockopt
360 extern int rpl_setsockopt (int, int, int, const void *, int);
362 # elif @HAVE_WINSOCK2_H@
364 # define setsockopt setsockopt_used_without_requesting_gnulib_module_setsockopt
365 # elif defined GNULIB_POSIXCHECK
367 # define setsockopt(s,lvl,o,v,l) \
368 (GL_LINK_WARNING ("setsockopt is not always POSIX compliant - " \
369 "use gnulib module setsockopt for portability"), \
370 setsockopt (s, lvl, o, v, l))
373 # if @HAVE_WINSOCK2_H@
375 # define select select_used_without_including_sys_select_h
378 # if @GNULIB_CLOSE@ && @HAVE_WINSOCK2_H@
379 /* gnulib internal function. */
380 # define HAVE__GL_CLOSE_FD_MAYBE_SOCKET 1
381 extern int _gl_close_fd_maybe_socket (int fd);
388 #endif /* HAVE_SYS_SOCKET_H */
390 #endif /* _GL_SYS_SOCKET_H */
391 #endif /* _GL_SYS_SOCKET_H */