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725e2999 JB |
1 | /* Provide a sys/socket header file for systems lacking it (read: MinGW) |
2 | and for systems where it is incomplete. | |
c0c3707f | 3 | Copyright (C) 2005-2019 Free Software Foundation, Inc. |
725e2999 JB |
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 General Public License as published by | |
8 | the Free Software Foundation; either version 3, 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 General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
c0c3707f | 17 | along with this program; if not, see <https://www.gnu.org/licenses/>. */ |
725e2999 JB |
18 | |
19 | /* This file is supposed to be used on platforms that lack <sys/socket.h>, | |
20 | on platforms where <sys/socket.h> cannot be included standalone, and on | |
21 | platforms where <sys/socket.h> does not provide all necessary definitions. | |
22 | It is intended to provide definitions and prototypes needed by an | |
23 | application. */ | |
24 | ||
25 | #if __GNUC__ >= 3 | |
26 | @PRAGMA_SYSTEM_HEADER@ | |
27 | #endif | |
28 | @PRAGMA_COLUMNS@ | |
29 | ||
30 | #if defined _GL_ALREADY_INCLUDING_SYS_SOCKET_H | |
31 | /* Special invocation convention: | |
32 | - On Cygwin 1.5.x we have a sequence of nested includes | |
33 | <sys/socket.h> -> <cygwin/socket.h> -> <asm/socket.h> -> <cygwin/if.h>, | |
34 | and the latter includes <sys/socket.h>. In this situation, the functions | |
35 | are not yet declared, therefore we cannot provide the C++ aliases. */ | |
36 | ||
37 | #@INCLUDE_NEXT@ @NEXT_SYS_SOCKET_H@ | |
38 | ||
39 | #else | |
40 | /* Normal invocation convention. */ | |
41 | ||
42 | #ifndef _@GUARD_PREFIX@_SYS_SOCKET_H | |
43 | ||
44 | #if @HAVE_SYS_SOCKET_H@ | |
45 | ||
46 | # define _GL_ALREADY_INCLUDING_SYS_SOCKET_H | |
47 | ||
48 | /* On many platforms, <sys/socket.h> assumes prior inclusion of | |
49 | <sys/types.h>. */ | |
50 | # include <sys/types.h> | |
51 | ||
52 | /* On FreeBSD 6.4, <sys/socket.h> defines some macros that assume that NULL | |
53 | is defined. */ | |
54 | # include <stddef.h> | |
55 | ||
56 | /* The include_next requires a split double-inclusion guard. */ | |
57 | # @INCLUDE_NEXT@ @NEXT_SYS_SOCKET_H@ | |
58 | ||
59 | # undef _GL_ALREADY_INCLUDING_SYS_SOCKET_H | |
60 | ||
61 | #endif | |
62 | ||
63 | #ifndef _@GUARD_PREFIX@_SYS_SOCKET_H | |
64 | #define _@GUARD_PREFIX@_SYS_SOCKET_H | |
65 | ||
66 | #ifndef _GL_INLINE_HEADER_BEGIN | |
67 | #error "Please include config.h first." | |
68 | #endif | |
69 | _GL_INLINE_HEADER_BEGIN | |
70 | #ifndef _GL_SYS_SOCKET_INLINE | |
71 | # define _GL_SYS_SOCKET_INLINE _GL_INLINE | |
72 | #endif | |
73 | ||
74 | /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */ | |
75 | ||
76 | /* The definition of _GL_ARG_NONNULL is copied here. */ | |
77 | ||
78 | /* The definition of _GL_WARN_ON_USE is copied here. */ | |
79 | ||
80 | #if !@HAVE_SA_FAMILY_T@ | |
81 | # if !GNULIB_defined_sa_family_t | |
c0c3707f CB |
82 | /* On OS/2 kLIBC, sa_family_t is unsigned char unless TCPV40HDRS is defined. */ |
83 | # if !defined __KLIBC__ || defined TCPV40HDRS | |
725e2999 | 84 | typedef unsigned short sa_family_t; |
c0c3707f CB |
85 | # else |
86 | typedef unsigned char sa_family_t; | |
87 | # endif | |
725e2999 JB |
88 | # define GNULIB_defined_sa_family_t 1 |
89 | # endif | |
90 | #endif | |
91 | ||
92 | #if @HAVE_STRUCT_SOCKADDR_STORAGE@ | |
93 | /* Make the 'struct sockaddr_storage' field 'ss_family' visible on AIX 7.1. */ | |
94 | # if !@HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY@ | |
95 | # ifndef ss_family | |
96 | # define ss_family __ss_family | |
97 | # endif | |
98 | # endif | |
99 | #else | |
100 | # include <stdalign.h> | |
101 | /* Code taken from glibc sysdeps/unix/sysv/linux/bits/socket.h on | |
102 | 2009-05-08, licensed under LGPLv2.1+, plus portability fixes. */ | |
103 | # define __ss_aligntype unsigned long int | |
104 | # define _SS_SIZE 256 | |
105 | # define _SS_PADSIZE \ | |
106 | (_SS_SIZE - ((sizeof (sa_family_t) >= alignof (__ss_aligntype) \ | |
107 | ? sizeof (sa_family_t) \ | |
108 | : alignof (__ss_aligntype)) \ | |
109 | + sizeof (__ss_aligntype))) | |
110 | ||
111 | # if !GNULIB_defined_struct_sockaddr_storage | |
112 | struct sockaddr_storage | |
113 | { | |
114 | sa_family_t ss_family; /* Address family, etc. */ | |
115 | __ss_aligntype __ss_align; /* Force desired alignment. */ | |
116 | char __ss_padding[_SS_PADSIZE]; | |
117 | }; | |
118 | # define GNULIB_defined_struct_sockaddr_storage 1 | |
119 | # endif | |
120 | ||
121 | #endif | |
122 | ||
123 | /* Get struct iovec. */ | |
124 | /* But avoid namespace pollution on glibc systems. */ | |
125 | #if ! defined __GLIBC__ | |
126 | # include <sys/uio.h> | |
127 | #endif | |
128 | ||
129 | #if @HAVE_SYS_SOCKET_H@ | |
130 | ||
131 | /* A platform that has <sys/socket.h>. */ | |
132 | ||
133 | /* For shutdown(). */ | |
134 | # if !defined SHUT_RD | |
135 | # define SHUT_RD 0 | |
136 | # endif | |
137 | # if !defined SHUT_WR | |
138 | # define SHUT_WR 1 | |
139 | # endif | |
140 | # if !defined SHUT_RDWR | |
141 | # define SHUT_RDWR 2 | |
142 | # endif | |
143 | ||
c0c3707f CB |
144 | # ifdef __VMS /* OpenVMS */ |
145 | # ifndef CMSG_SPACE | |
146 | # define CMSG_SPACE(length) _CMSG_SPACE(length) | |
147 | # endif | |
148 | # ifndef CMSG_LEN | |
149 | # define CMSG_LEN(length) _CMSG_LEN(length) | |
150 | # endif | |
151 | # endif | |
152 | ||
725e2999 JB |
153 | #else |
154 | ||
155 | # ifdef __CYGWIN__ | |
156 | # error "Cygwin does have a sys/socket.h, doesn't it?!?" | |
157 | # endif | |
158 | ||
159 | /* A platform that lacks <sys/socket.h>. | |
160 | ||
161 | Currently only MinGW is supported. See the gnulib manual regarding | |
162 | Windows sockets. MinGW has the header files winsock2.h and | |
163 | ws2tcpip.h that declare the sys/socket.h definitions we need. Note | |
164 | that you can influence which definitions you get by setting the | |
165 | WINVER symbol before including these two files. For example, | |
166 | getaddrinfo is only available if _WIN32_WINNT >= 0x0501 (that | |
167 | symbol is set indirectly through WINVER). You can set this by | |
168 | adding AC_DEFINE(WINVER, 0x0501) to configure.ac. Note that your | |
169 | code may not run on older Windows releases then. My Windows 2000 | |
170 | box was not able to run the code, for example. The situation is | |
171 | slightly confusing because | |
c0c3707f | 172 | <https://docs.microsoft.com/en-us/windows/desktop/api/ws2tcpip/nf-ws2tcpip-getaddrinfo> |
725e2999 JB |
173 | suggests that getaddrinfo should be available on all Windows |
174 | releases. */ | |
175 | ||
176 | # if @HAVE_WINSOCK2_H@ | |
177 | # include <winsock2.h> | |
178 | # endif | |
179 | # if @HAVE_WS2TCPIP_H@ | |
180 | # include <ws2tcpip.h> | |
181 | # endif | |
182 | ||
183 | /* For shutdown(). */ | |
184 | # if !defined SHUT_RD && defined SD_RECEIVE | |
185 | # define SHUT_RD SD_RECEIVE | |
186 | # endif | |
187 | # if !defined SHUT_WR && defined SD_SEND | |
188 | # define SHUT_WR SD_SEND | |
189 | # endif | |
190 | # if !defined SHUT_RDWR && defined SD_BOTH | |
191 | # define SHUT_RDWR SD_BOTH | |
192 | # endif | |
193 | ||
194 | # if @HAVE_WINSOCK2_H@ | |
195 | /* Include headers needed by the emulation code. */ | |
196 | # include <sys/types.h> | |
197 | # include <io.h> | |
198 | ||
199 | # if !GNULIB_defined_socklen_t | |
200 | typedef int socklen_t; | |
201 | # define GNULIB_defined_socklen_t 1 | |
202 | # endif | |
203 | ||
204 | # endif | |
205 | ||
206 | /* Rudimentary 'struct msghdr'; this works as long as you don't try to | |
207 | access msg_control or msg_controllen. */ | |
208 | struct msghdr { | |
209 | void *msg_name; | |
210 | socklen_t msg_namelen; | |
211 | struct iovec *msg_iov; | |
212 | int msg_iovlen; | |
213 | int msg_flags; | |
214 | }; | |
215 | ||
216 | #endif | |
217 | ||
c0c3707f CB |
218 | /* Ensure SO_REUSEPORT is defined. */ |
219 | /* For the subtle differences between SO_REUSEPORT and SO_REUSEADDR, see | |
220 | https://stackoverflow.com/questions/14388706/socket-options-so-reuseaddr-and-so-reuseport-how-do-they-differ-do-they-mean-t | |
221 | and https://lwn.net/Articles/542629/ | |
222 | */ | |
223 | #ifndef SO_REUSEPORT | |
224 | # define SO_REUSEPORT SO_REUSEADDR | |
225 | #endif | |
226 | ||
725e2999 JB |
227 | /* Fix some definitions from <winsock2.h>. */ |
228 | ||
229 | #if @HAVE_WINSOCK2_H@ | |
230 | ||
231 | # if !GNULIB_defined_rpl_fd_isset | |
232 | ||
233 | /* Re-define FD_ISSET to avoid a WSA call while we are not using | |
234 | network sockets. */ | |
235 | _GL_SYS_SOCKET_INLINE int | |
236 | rpl_fd_isset (SOCKET fd, fd_set * set) | |
237 | { | |
238 | u_int i; | |
239 | if (set == NULL) | |
240 | return 0; | |
241 | ||
242 | for (i = 0; i < set->fd_count; i++) | |
243 | if (set->fd_array[i] == fd) | |
244 | return 1; | |
245 | ||
246 | return 0; | |
247 | } | |
248 | ||
249 | # define GNULIB_defined_rpl_fd_isset 1 | |
250 | # endif | |
251 | ||
252 | # undef FD_ISSET | |
253 | # define FD_ISSET(fd, set) rpl_fd_isset(fd, set) | |
254 | ||
255 | #endif | |
256 | ||
257 | /* Hide some function declarations from <winsock2.h>. */ | |
258 | ||
259 | #if @HAVE_WINSOCK2_H@ | |
260 | # if !defined _@GUARD_PREFIX@_UNISTD_H | |
261 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
262 | # undef close | |
263 | # define close close_used_without_including_unistd_h | |
264 | # else | |
265 | _GL_WARN_ON_USE (close, | |
266 | "close() used without including <unistd.h>"); | |
267 | # endif | |
268 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
269 | # undef gethostname | |
270 | # define gethostname gethostname_used_without_including_unistd_h | |
271 | # else | |
272 | _GL_WARN_ON_USE (gethostname, | |
273 | "gethostname() used without including <unistd.h>"); | |
274 | # endif | |
275 | # endif | |
276 | # if !defined _@GUARD_PREFIX@_SYS_SELECT_H | |
277 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
278 | # undef select | |
279 | # define select select_used_without_including_sys_select_h | |
280 | # else | |
281 | _GL_WARN_ON_USE (select, | |
282 | "select() used without including <sys/select.h>"); | |
283 | # endif | |
284 | # endif | |
285 | #endif | |
286 | ||
287 | /* Wrap everything else to use libc file descriptors for sockets. */ | |
288 | ||
289 | #if @GNULIB_SOCKET@ | |
290 | # if @HAVE_WINSOCK2_H@ | |
291 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
292 | # undef socket | |
293 | # define socket rpl_socket | |
294 | # endif | |
295 | _GL_FUNCDECL_RPL (socket, int, (int domain, int type, int protocol)); | |
296 | _GL_CXXALIAS_RPL (socket, int, (int domain, int type, int protocol)); | |
297 | # else | |
298 | _GL_CXXALIAS_SYS (socket, int, (int domain, int type, int protocol)); | |
299 | # endif | |
300 | _GL_CXXALIASWARN (socket); | |
301 | #elif @HAVE_WINSOCK2_H@ | |
302 | # undef socket | |
303 | # define socket socket_used_without_requesting_gnulib_module_socket | |
304 | #elif defined GNULIB_POSIXCHECK | |
305 | # undef socket | |
306 | # if HAVE_RAW_DECL_SOCKET | |
307 | _GL_WARN_ON_USE (socket, "socket is not always POSIX compliant - " | |
308 | "use gnulib module socket for portability"); | |
309 | # endif | |
310 | #endif | |
311 | ||
312 | #if @GNULIB_CONNECT@ | |
313 | # if @HAVE_WINSOCK2_H@ | |
314 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
315 | # undef connect | |
316 | # define connect rpl_connect | |
317 | # endif | |
318 | _GL_FUNCDECL_RPL (connect, int, | |
319 | (int fd, const struct sockaddr *addr, socklen_t addrlen) | |
320 | _GL_ARG_NONNULL ((2))); | |
321 | _GL_CXXALIAS_RPL (connect, int, | |
322 | (int fd, const struct sockaddr *addr, socklen_t addrlen)); | |
323 | # else | |
324 | /* Need to cast, because on NonStop Kernel, the third parameter is | |
325 | size_t addrlen. */ | |
326 | _GL_CXXALIAS_SYS_CAST (connect, int, | |
327 | (int fd, | |
328 | const struct sockaddr *addr, socklen_t addrlen)); | |
329 | # endif | |
330 | _GL_CXXALIASWARN (connect); | |
331 | #elif @HAVE_WINSOCK2_H@ | |
332 | # undef connect | |
333 | # define connect socket_used_without_requesting_gnulib_module_connect | |
334 | #elif defined GNULIB_POSIXCHECK | |
335 | # undef connect | |
336 | # if HAVE_RAW_DECL_CONNECT | |
337 | _GL_WARN_ON_USE (connect, "connect is not always POSIX compliant - " | |
338 | "use gnulib module connect for portability"); | |
339 | # endif | |
340 | #endif | |
341 | ||
342 | #if @GNULIB_ACCEPT@ | |
343 | # if @HAVE_WINSOCK2_H@ | |
344 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
345 | # undef accept | |
346 | # define accept rpl_accept | |
347 | # endif | |
348 | _GL_FUNCDECL_RPL (accept, int, | |
349 | (int fd, struct sockaddr *addr, socklen_t *addrlen)); | |
350 | _GL_CXXALIAS_RPL (accept, int, | |
351 | (int fd, struct sockaddr *addr, socklen_t *addrlen)); | |
352 | # else | |
353 | /* Need to cast, because on Solaris 10 systems, the third parameter is | |
354 | void *addrlen. */ | |
355 | _GL_CXXALIAS_SYS_CAST (accept, int, | |
356 | (int fd, struct sockaddr *addr, socklen_t *addrlen)); | |
357 | # endif | |
358 | _GL_CXXALIASWARN (accept); | |
359 | #elif @HAVE_WINSOCK2_H@ | |
360 | # undef accept | |
361 | # define accept accept_used_without_requesting_gnulib_module_accept | |
362 | #elif defined GNULIB_POSIXCHECK | |
363 | # undef accept | |
364 | # if HAVE_RAW_DECL_ACCEPT | |
365 | _GL_WARN_ON_USE (accept, "accept is not always POSIX compliant - " | |
366 | "use gnulib module accept for portability"); | |
367 | # endif | |
368 | #endif | |
369 | ||
370 | #if @GNULIB_BIND@ | |
371 | # if @HAVE_WINSOCK2_H@ | |
372 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
373 | # undef bind | |
374 | # define bind rpl_bind | |
375 | # endif | |
376 | _GL_FUNCDECL_RPL (bind, int, | |
377 | (int fd, const struct sockaddr *addr, socklen_t addrlen) | |
378 | _GL_ARG_NONNULL ((2))); | |
379 | _GL_CXXALIAS_RPL (bind, int, | |
380 | (int fd, const struct sockaddr *addr, socklen_t addrlen)); | |
381 | # else | |
382 | /* Need to cast, because on NonStop Kernel, the third parameter is | |
383 | size_t addrlen. */ | |
384 | _GL_CXXALIAS_SYS_CAST (bind, int, | |
385 | (int fd, | |
386 | const struct sockaddr *addr, socklen_t addrlen)); | |
387 | # endif | |
388 | _GL_CXXALIASWARN (bind); | |
389 | #elif @HAVE_WINSOCK2_H@ | |
390 | # undef bind | |
391 | # define bind bind_used_without_requesting_gnulib_module_bind | |
392 | #elif defined GNULIB_POSIXCHECK | |
393 | # undef bind | |
394 | # if HAVE_RAW_DECL_BIND | |
395 | _GL_WARN_ON_USE (bind, "bind is not always POSIX compliant - " | |
396 | "use gnulib module bind for portability"); | |
397 | # endif | |
398 | #endif | |
399 | ||
400 | #if @GNULIB_GETPEERNAME@ | |
401 | # if @HAVE_WINSOCK2_H@ | |
402 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
403 | # undef getpeername | |
404 | # define getpeername rpl_getpeername | |
405 | # endif | |
406 | _GL_FUNCDECL_RPL (getpeername, int, | |
407 | (int fd, struct sockaddr *addr, socklen_t *addrlen) | |
408 | _GL_ARG_NONNULL ((2, 3))); | |
409 | _GL_CXXALIAS_RPL (getpeername, int, | |
410 | (int fd, struct sockaddr *addr, socklen_t *addrlen)); | |
411 | # else | |
412 | /* Need to cast, because on Solaris 10 systems, the third parameter is | |
413 | void *addrlen. */ | |
414 | _GL_CXXALIAS_SYS_CAST (getpeername, int, | |
415 | (int fd, struct sockaddr *addr, socklen_t *addrlen)); | |
416 | # endif | |
417 | _GL_CXXALIASWARN (getpeername); | |
418 | #elif @HAVE_WINSOCK2_H@ | |
419 | # undef getpeername | |
420 | # define getpeername getpeername_used_without_requesting_gnulib_module_getpeername | |
421 | #elif defined GNULIB_POSIXCHECK | |
422 | # undef getpeername | |
423 | # if HAVE_RAW_DECL_GETPEERNAME | |
424 | _GL_WARN_ON_USE (getpeername, "getpeername is not always POSIX compliant - " | |
425 | "use gnulib module getpeername for portability"); | |
426 | # endif | |
427 | #endif | |
428 | ||
429 | #if @GNULIB_GETSOCKNAME@ | |
430 | # if @HAVE_WINSOCK2_H@ | |
431 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
432 | # undef getsockname | |
433 | # define getsockname rpl_getsockname | |
434 | # endif | |
435 | _GL_FUNCDECL_RPL (getsockname, int, | |
436 | (int fd, struct sockaddr *addr, socklen_t *addrlen) | |
437 | _GL_ARG_NONNULL ((2, 3))); | |
438 | _GL_CXXALIAS_RPL (getsockname, int, | |
439 | (int fd, struct sockaddr *addr, socklen_t *addrlen)); | |
440 | # else | |
441 | /* Need to cast, because on Solaris 10 systems, the third parameter is | |
442 | void *addrlen. */ | |
443 | _GL_CXXALIAS_SYS_CAST (getsockname, int, | |
444 | (int fd, struct sockaddr *addr, socklen_t *addrlen)); | |
445 | # endif | |
446 | _GL_CXXALIASWARN (getsockname); | |
447 | #elif @HAVE_WINSOCK2_H@ | |
448 | # undef getsockname | |
449 | # define getsockname getsockname_used_without_requesting_gnulib_module_getsockname | |
450 | #elif defined GNULIB_POSIXCHECK | |
451 | # undef getsockname | |
452 | # if HAVE_RAW_DECL_GETSOCKNAME | |
453 | _GL_WARN_ON_USE (getsockname, "getsockname is not always POSIX compliant - " | |
454 | "use gnulib module getsockname for portability"); | |
455 | # endif | |
456 | #endif | |
457 | ||
458 | #if @GNULIB_GETSOCKOPT@ | |
459 | # if @HAVE_WINSOCK2_H@ | |
460 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
461 | # undef getsockopt | |
462 | # define getsockopt rpl_getsockopt | |
463 | # endif | |
464 | _GL_FUNCDECL_RPL (getsockopt, int, (int fd, int level, int optname, | |
465 | void *optval, socklen_t *optlen) | |
466 | _GL_ARG_NONNULL ((4, 5))); | |
467 | _GL_CXXALIAS_RPL (getsockopt, int, (int fd, int level, int optname, | |
468 | void *optval, socklen_t *optlen)); | |
469 | # else | |
470 | /* Need to cast, because on Solaris 10 systems, the fifth parameter is | |
471 | void *optlen. */ | |
472 | _GL_CXXALIAS_SYS_CAST (getsockopt, int, (int fd, int level, int optname, | |
473 | void *optval, socklen_t *optlen)); | |
474 | # endif | |
475 | _GL_CXXALIASWARN (getsockopt); | |
476 | #elif @HAVE_WINSOCK2_H@ | |
477 | # undef getsockopt | |
478 | # define getsockopt getsockopt_used_without_requesting_gnulib_module_getsockopt | |
479 | #elif defined GNULIB_POSIXCHECK | |
480 | # undef getsockopt | |
481 | # if HAVE_RAW_DECL_GETSOCKOPT | |
482 | _GL_WARN_ON_USE (getsockopt, "getsockopt is not always POSIX compliant - " | |
483 | "use gnulib module getsockopt for portability"); | |
484 | # endif | |
485 | #endif | |
486 | ||
487 | #if @GNULIB_LISTEN@ | |
488 | # if @HAVE_WINSOCK2_H@ | |
489 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
490 | # undef listen | |
491 | # define listen rpl_listen | |
492 | # endif | |
493 | _GL_FUNCDECL_RPL (listen, int, (int fd, int backlog)); | |
494 | _GL_CXXALIAS_RPL (listen, int, (int fd, int backlog)); | |
495 | # else | |
496 | _GL_CXXALIAS_SYS (listen, int, (int fd, int backlog)); | |
497 | # endif | |
498 | _GL_CXXALIASWARN (listen); | |
499 | #elif @HAVE_WINSOCK2_H@ | |
500 | # undef listen | |
501 | # define listen listen_used_without_requesting_gnulib_module_listen | |
502 | #elif defined GNULIB_POSIXCHECK | |
503 | # undef listen | |
504 | # if HAVE_RAW_DECL_LISTEN | |
505 | _GL_WARN_ON_USE (listen, "listen is not always POSIX compliant - " | |
506 | "use gnulib module listen for portability"); | |
507 | # endif | |
508 | #endif | |
509 | ||
510 | #if @GNULIB_RECV@ | |
511 | # if @HAVE_WINSOCK2_H@ | |
512 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
513 | # undef recv | |
514 | # define recv rpl_recv | |
515 | # endif | |
516 | _GL_FUNCDECL_RPL (recv, ssize_t, (int fd, void *buf, size_t len, int flags) | |
517 | _GL_ARG_NONNULL ((2))); | |
518 | _GL_CXXALIAS_RPL (recv, ssize_t, (int fd, void *buf, size_t len, int flags)); | |
519 | # else | |
c0c3707f CB |
520 | /* Need to cast, because on HP-UX 11.31 the return type may be |
521 | int, | |
522 | depending on compiler options. */ | |
523 | _GL_CXXALIAS_SYS_CAST (recv, ssize_t, (int fd, void *buf, size_t len, int flags)); | |
725e2999 JB |
524 | # endif |
525 | _GL_CXXALIASWARN (recv); | |
526 | #elif @HAVE_WINSOCK2_H@ | |
527 | # undef recv | |
528 | # define recv recv_used_without_requesting_gnulib_module_recv | |
529 | #elif defined GNULIB_POSIXCHECK | |
530 | # undef recv | |
531 | # if HAVE_RAW_DECL_RECV | |
532 | _GL_WARN_ON_USE (recv, "recv is not always POSIX compliant - " | |
533 | "use gnulib module recv for portability"); | |
534 | # endif | |
535 | #endif | |
536 | ||
537 | #if @GNULIB_SEND@ | |
538 | # if @HAVE_WINSOCK2_H@ | |
539 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
540 | # undef send | |
541 | # define send rpl_send | |
542 | # endif | |
543 | _GL_FUNCDECL_RPL (send, ssize_t, | |
544 | (int fd, const void *buf, size_t len, int flags) | |
545 | _GL_ARG_NONNULL ((2))); | |
546 | _GL_CXXALIAS_RPL (send, ssize_t, | |
547 | (int fd, const void *buf, size_t len, int flags)); | |
548 | # else | |
c0c3707f CB |
549 | /* Need to cast, because on HP-UX 11.31 the return type may be |
550 | int, | |
551 | depending on compiler options. */ | |
552 | _GL_CXXALIAS_SYS_CAST (send, ssize_t, | |
553 | (int fd, const void *buf, size_t len, int flags)); | |
725e2999 JB |
554 | # endif |
555 | _GL_CXXALIASWARN (send); | |
556 | #elif @HAVE_WINSOCK2_H@ | |
557 | # undef send | |
558 | # define send send_used_without_requesting_gnulib_module_send | |
559 | #elif defined GNULIB_POSIXCHECK | |
560 | # undef send | |
561 | # if HAVE_RAW_DECL_SEND | |
562 | _GL_WARN_ON_USE (send, "send is not always POSIX compliant - " | |
563 | "use gnulib module send for portability"); | |
564 | # endif | |
565 | #endif | |
566 | ||
567 | #if @GNULIB_RECVFROM@ | |
568 | # if @HAVE_WINSOCK2_H@ | |
569 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
570 | # undef recvfrom | |
571 | # define recvfrom rpl_recvfrom | |
572 | # endif | |
573 | _GL_FUNCDECL_RPL (recvfrom, ssize_t, | |
574 | (int fd, void *buf, size_t len, int flags, | |
575 | struct sockaddr *from, socklen_t *fromlen) | |
576 | _GL_ARG_NONNULL ((2))); | |
577 | _GL_CXXALIAS_RPL (recvfrom, ssize_t, | |
578 | (int fd, void *buf, size_t len, int flags, | |
579 | struct sockaddr *from, socklen_t *fromlen)); | |
580 | # else | |
581 | /* Need to cast, because on Solaris 10 systems, the sixth parameter is | |
582 | void *fromlen. */ | |
583 | _GL_CXXALIAS_SYS_CAST (recvfrom, ssize_t, | |
584 | (int fd, void *buf, size_t len, int flags, | |
585 | struct sockaddr *from, socklen_t *fromlen)); | |
586 | # endif | |
587 | _GL_CXXALIASWARN (recvfrom); | |
588 | #elif @HAVE_WINSOCK2_H@ | |
589 | # undef recvfrom | |
590 | # define recvfrom recvfrom_used_without_requesting_gnulib_module_recvfrom | |
591 | #elif defined GNULIB_POSIXCHECK | |
592 | # undef recvfrom | |
593 | # if HAVE_RAW_DECL_RECVFROM | |
594 | _GL_WARN_ON_USE (recvfrom, "recvfrom is not always POSIX compliant - " | |
595 | "use gnulib module recvfrom for portability"); | |
596 | # endif | |
597 | #endif | |
598 | ||
599 | #if @GNULIB_SENDTO@ | |
600 | # if @HAVE_WINSOCK2_H@ | |
601 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
602 | # undef sendto | |
603 | # define sendto rpl_sendto | |
604 | # endif | |
605 | _GL_FUNCDECL_RPL (sendto, ssize_t, | |
606 | (int fd, const void *buf, size_t len, int flags, | |
607 | const struct sockaddr *to, socklen_t tolen) | |
608 | _GL_ARG_NONNULL ((2))); | |
609 | _GL_CXXALIAS_RPL (sendto, ssize_t, | |
610 | (int fd, const void *buf, size_t len, int flags, | |
611 | const struct sockaddr *to, socklen_t tolen)); | |
612 | # else | |
613 | /* Need to cast, because on NonStop Kernel, the sixth parameter is | |
614 | size_t tolen. */ | |
615 | _GL_CXXALIAS_SYS_CAST (sendto, ssize_t, | |
616 | (int fd, const void *buf, size_t len, int flags, | |
617 | const struct sockaddr *to, socklen_t tolen)); | |
618 | # endif | |
619 | _GL_CXXALIASWARN (sendto); | |
620 | #elif @HAVE_WINSOCK2_H@ | |
621 | # undef sendto | |
622 | # define sendto sendto_used_without_requesting_gnulib_module_sendto | |
623 | #elif defined GNULIB_POSIXCHECK | |
624 | # undef sendto | |
625 | # if HAVE_RAW_DECL_SENDTO | |
626 | _GL_WARN_ON_USE (sendto, "sendto is not always POSIX compliant - " | |
627 | "use gnulib module sendto for portability"); | |
628 | # endif | |
629 | #endif | |
630 | ||
631 | #if @GNULIB_SETSOCKOPT@ | |
632 | # if @HAVE_WINSOCK2_H@ | |
633 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
634 | # undef setsockopt | |
635 | # define setsockopt rpl_setsockopt | |
636 | # endif | |
637 | _GL_FUNCDECL_RPL (setsockopt, int, (int fd, int level, int optname, | |
638 | const void * optval, socklen_t optlen) | |
639 | _GL_ARG_NONNULL ((4))); | |
640 | _GL_CXXALIAS_RPL (setsockopt, int, (int fd, int level, int optname, | |
641 | const void * optval, socklen_t optlen)); | |
642 | # else | |
643 | /* Need to cast, because on NonStop Kernel, the fifth parameter is | |
644 | size_t optlen. */ | |
645 | _GL_CXXALIAS_SYS_CAST (setsockopt, int, | |
646 | (int fd, int level, int optname, | |
647 | const void * optval, socklen_t optlen)); | |
648 | # endif | |
649 | _GL_CXXALIASWARN (setsockopt); | |
650 | #elif @HAVE_WINSOCK2_H@ | |
651 | # undef setsockopt | |
652 | # define setsockopt setsockopt_used_without_requesting_gnulib_module_setsockopt | |
653 | #elif defined GNULIB_POSIXCHECK | |
654 | # undef setsockopt | |
655 | # if HAVE_RAW_DECL_SETSOCKOPT | |
656 | _GL_WARN_ON_USE (setsockopt, "setsockopt is not always POSIX compliant - " | |
657 | "use gnulib module setsockopt for portability"); | |
658 | # endif | |
659 | #endif | |
660 | ||
661 | #if @GNULIB_SHUTDOWN@ | |
662 | # if @HAVE_WINSOCK2_H@ | |
663 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
664 | # undef shutdown | |
665 | # define shutdown rpl_shutdown | |
666 | # endif | |
667 | _GL_FUNCDECL_RPL (shutdown, int, (int fd, int how)); | |
668 | _GL_CXXALIAS_RPL (shutdown, int, (int fd, int how)); | |
669 | # else | |
670 | _GL_CXXALIAS_SYS (shutdown, int, (int fd, int how)); | |
671 | # endif | |
672 | _GL_CXXALIASWARN (shutdown); | |
673 | #elif @HAVE_WINSOCK2_H@ | |
674 | # undef shutdown | |
675 | # define shutdown shutdown_used_without_requesting_gnulib_module_shutdown | |
676 | #elif defined GNULIB_POSIXCHECK | |
677 | # undef shutdown | |
678 | # if HAVE_RAW_DECL_SHUTDOWN | |
679 | _GL_WARN_ON_USE (shutdown, "shutdown is not always POSIX compliant - " | |
680 | "use gnulib module shutdown for portability"); | |
681 | # endif | |
682 | #endif | |
683 | ||
684 | #if @GNULIB_ACCEPT4@ | |
685 | /* Accept a connection on a socket, with specific opening flags. | |
686 | The flags are a bitmask, possibly including O_CLOEXEC (defined in <fcntl.h>) | |
687 | and O_TEXT, O_BINARY (defined in "binary-io.h"). | |
688 | See also the Linux man page at | |
c0c3707f | 689 | <https://www.kernel.org/doc/man-pages/online/pages/man2/accept4.2.html>. */ |
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690 | # if @HAVE_ACCEPT4@ |
691 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
692 | # define accept4 rpl_accept4 | |
693 | # endif | |
694 | _GL_FUNCDECL_RPL (accept4, int, | |
695 | (int sockfd, struct sockaddr *addr, socklen_t *addrlen, | |
696 | int flags)); | |
697 | _GL_CXXALIAS_RPL (accept4, int, | |
698 | (int sockfd, struct sockaddr *addr, socklen_t *addrlen, | |
699 | int flags)); | |
700 | # else | |
701 | _GL_FUNCDECL_SYS (accept4, int, | |
702 | (int sockfd, struct sockaddr *addr, socklen_t *addrlen, | |
703 | int flags)); | |
704 | _GL_CXXALIAS_SYS (accept4, int, | |
705 | (int sockfd, struct sockaddr *addr, socklen_t *addrlen, | |
706 | int flags)); | |
707 | # endif | |
708 | _GL_CXXALIASWARN (accept4); | |
709 | #elif defined GNULIB_POSIXCHECK | |
710 | # undef accept4 | |
711 | # if HAVE_RAW_DECL_ACCEPT4 | |
712 | _GL_WARN_ON_USE (accept4, "accept4 is unportable - " | |
713 | "use gnulib module accept4 for portability"); | |
714 | # endif | |
715 | #endif | |
716 | ||
717 | _GL_INLINE_HEADER_END | |
718 | ||
719 | #endif /* _@GUARD_PREFIX@_SYS_SOCKET_H */ | |
720 | #endif /* _@GUARD_PREFIX@_SYS_SOCKET_H */ | |
721 | #endif |