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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. | |
9c9d63b1 | 3 | Copyright (C) 2005-2021 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> | |
698be2d8 | 198 | /* If these headers don't define socklen_t, <config.h> does. */ |
725e2999 JB |
199 | # endif |
200 | ||
201 | /* Rudimentary 'struct msghdr'; this works as long as you don't try to | |
202 | access msg_control or msg_controllen. */ | |
203 | struct msghdr { | |
204 | void *msg_name; | |
205 | socklen_t msg_namelen; | |
206 | struct iovec *msg_iov; | |
207 | int msg_iovlen; | |
208 | int msg_flags; | |
209 | }; | |
210 | ||
211 | #endif | |
212 | ||
c0c3707f CB |
213 | /* Ensure SO_REUSEPORT is defined. */ |
214 | /* For the subtle differences between SO_REUSEPORT and SO_REUSEADDR, see | |
215 | https://stackoverflow.com/questions/14388706/socket-options-so-reuseaddr-and-so-reuseport-how-do-they-differ-do-they-mean-t | |
216 | and https://lwn.net/Articles/542629/ | |
217 | */ | |
218 | #ifndef SO_REUSEPORT | |
219 | # define SO_REUSEPORT SO_REUSEADDR | |
220 | #endif | |
221 | ||
725e2999 JB |
222 | /* Fix some definitions from <winsock2.h>. */ |
223 | ||
224 | #if @HAVE_WINSOCK2_H@ | |
225 | ||
226 | # if !GNULIB_defined_rpl_fd_isset | |
227 | ||
228 | /* Re-define FD_ISSET to avoid a WSA call while we are not using | |
229 | network sockets. */ | |
230 | _GL_SYS_SOCKET_INLINE int | |
231 | rpl_fd_isset (SOCKET fd, fd_set * set) | |
232 | { | |
233 | u_int i; | |
234 | if (set == NULL) | |
235 | return 0; | |
236 | ||
237 | for (i = 0; i < set->fd_count; i++) | |
238 | if (set->fd_array[i] == fd) | |
239 | return 1; | |
240 | ||
241 | return 0; | |
242 | } | |
243 | ||
244 | # define GNULIB_defined_rpl_fd_isset 1 | |
245 | # endif | |
246 | ||
247 | # undef FD_ISSET | |
248 | # define FD_ISSET(fd, set) rpl_fd_isset(fd, set) | |
249 | ||
250 | #endif | |
251 | ||
252 | /* Hide some function declarations from <winsock2.h>. */ | |
253 | ||
254 | #if @HAVE_WINSOCK2_H@ | |
255 | # if !defined _@GUARD_PREFIX@_UNISTD_H | |
256 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
257 | # undef close | |
258 | # define close close_used_without_including_unistd_h | |
9c9d63b1 | 259 | # elif !defined __clang__ |
725e2999 JB |
260 | _GL_WARN_ON_USE (close, |
261 | "close() used without including <unistd.h>"); | |
262 | # endif | |
263 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
264 | # undef gethostname | |
265 | # define gethostname gethostname_used_without_including_unistd_h | |
266 | # else | |
267 | _GL_WARN_ON_USE (gethostname, | |
268 | "gethostname() used without including <unistd.h>"); | |
269 | # endif | |
270 | # endif | |
271 | # if !defined _@GUARD_PREFIX@_SYS_SELECT_H | |
272 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
273 | # undef select | |
274 | # define select select_used_without_including_sys_select_h | |
275 | # else | |
276 | _GL_WARN_ON_USE (select, | |
277 | "select() used without including <sys/select.h>"); | |
278 | # endif | |
279 | # endif | |
280 | #endif | |
281 | ||
282 | /* Wrap everything else to use libc file descriptors for sockets. */ | |
283 | ||
284 | #if @GNULIB_SOCKET@ | |
285 | # if @HAVE_WINSOCK2_H@ | |
286 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
287 | # undef socket | |
288 | # define socket rpl_socket | |
289 | # endif | |
290 | _GL_FUNCDECL_RPL (socket, int, (int domain, int type, int protocol)); | |
291 | _GL_CXXALIAS_RPL (socket, int, (int domain, int type, int protocol)); | |
292 | # else | |
293 | _GL_CXXALIAS_SYS (socket, int, (int domain, int type, int protocol)); | |
294 | # endif | |
295 | _GL_CXXALIASWARN (socket); | |
296 | #elif @HAVE_WINSOCK2_H@ | |
297 | # undef socket | |
298 | # define socket socket_used_without_requesting_gnulib_module_socket | |
299 | #elif defined GNULIB_POSIXCHECK | |
300 | # undef socket | |
301 | # if HAVE_RAW_DECL_SOCKET | |
302 | _GL_WARN_ON_USE (socket, "socket is not always POSIX compliant - " | |
303 | "use gnulib module socket for portability"); | |
304 | # endif | |
305 | #endif | |
306 | ||
307 | #if @GNULIB_CONNECT@ | |
308 | # if @HAVE_WINSOCK2_H@ | |
309 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
310 | # undef connect | |
311 | # define connect rpl_connect | |
312 | # endif | |
313 | _GL_FUNCDECL_RPL (connect, int, | |
314 | (int fd, const struct sockaddr *addr, socklen_t addrlen) | |
315 | _GL_ARG_NONNULL ((2))); | |
316 | _GL_CXXALIAS_RPL (connect, int, | |
317 | (int fd, const struct sockaddr *addr, socklen_t addrlen)); | |
318 | # else | |
319 | /* Need to cast, because on NonStop Kernel, the third parameter is | |
320 | size_t addrlen. */ | |
321 | _GL_CXXALIAS_SYS_CAST (connect, int, | |
322 | (int fd, | |
323 | const struct sockaddr *addr, socklen_t addrlen)); | |
324 | # endif | |
325 | _GL_CXXALIASWARN (connect); | |
326 | #elif @HAVE_WINSOCK2_H@ | |
327 | # undef connect | |
328 | # define connect socket_used_without_requesting_gnulib_module_connect | |
329 | #elif defined GNULIB_POSIXCHECK | |
330 | # undef connect | |
331 | # if HAVE_RAW_DECL_CONNECT | |
332 | _GL_WARN_ON_USE (connect, "connect is not always POSIX compliant - " | |
333 | "use gnulib module connect for portability"); | |
334 | # endif | |
335 | #endif | |
336 | ||
337 | #if @GNULIB_ACCEPT@ | |
338 | # if @HAVE_WINSOCK2_H@ | |
339 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
340 | # undef accept | |
341 | # define accept rpl_accept | |
342 | # endif | |
343 | _GL_FUNCDECL_RPL (accept, int, | |
698be2d8 CB |
344 | (int fd, |
345 | struct sockaddr *restrict addr, | |
346 | socklen_t *restrict addrlen)); | |
725e2999 | 347 | _GL_CXXALIAS_RPL (accept, int, |
698be2d8 CB |
348 | (int fd, |
349 | struct sockaddr *restrict addr, | |
350 | socklen_t *restrict addrlen)); | |
725e2999 JB |
351 | # else |
352 | /* Need to cast, because on Solaris 10 systems, the third parameter is | |
698be2d8 | 353 | void *addrlen. */ |
725e2999 | 354 | _GL_CXXALIAS_SYS_CAST (accept, int, |
698be2d8 CB |
355 | (int fd, |
356 | struct sockaddr *restrict addr, | |
357 | socklen_t *restrict addrlen)); | |
725e2999 JB |
358 | # endif |
359 | _GL_CXXALIASWARN (accept); | |
360 | #elif @HAVE_WINSOCK2_H@ | |
361 | # undef accept | |
362 | # define accept accept_used_without_requesting_gnulib_module_accept | |
363 | #elif defined GNULIB_POSIXCHECK | |
364 | # undef accept | |
365 | # if HAVE_RAW_DECL_ACCEPT | |
366 | _GL_WARN_ON_USE (accept, "accept is not always POSIX compliant - " | |
367 | "use gnulib module accept for portability"); | |
368 | # endif | |
369 | #endif | |
370 | ||
371 | #if @GNULIB_BIND@ | |
372 | # if @HAVE_WINSOCK2_H@ | |
373 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
374 | # undef bind | |
375 | # define bind rpl_bind | |
376 | # endif | |
377 | _GL_FUNCDECL_RPL (bind, int, | |
378 | (int fd, const struct sockaddr *addr, socklen_t addrlen) | |
379 | _GL_ARG_NONNULL ((2))); | |
380 | _GL_CXXALIAS_RPL (bind, int, | |
381 | (int fd, const struct sockaddr *addr, socklen_t addrlen)); | |
382 | # else | |
383 | /* Need to cast, because on NonStop Kernel, the third parameter is | |
384 | size_t addrlen. */ | |
385 | _GL_CXXALIAS_SYS_CAST (bind, int, | |
386 | (int fd, | |
387 | const struct sockaddr *addr, socklen_t addrlen)); | |
388 | # endif | |
389 | _GL_CXXALIASWARN (bind); | |
390 | #elif @HAVE_WINSOCK2_H@ | |
391 | # undef bind | |
392 | # define bind bind_used_without_requesting_gnulib_module_bind | |
393 | #elif defined GNULIB_POSIXCHECK | |
394 | # undef bind | |
395 | # if HAVE_RAW_DECL_BIND | |
396 | _GL_WARN_ON_USE (bind, "bind is not always POSIX compliant - " | |
397 | "use gnulib module bind for portability"); | |
398 | # endif | |
399 | #endif | |
400 | ||
401 | #if @GNULIB_GETPEERNAME@ | |
402 | # if @HAVE_WINSOCK2_H@ | |
403 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
404 | # undef getpeername | |
405 | # define getpeername rpl_getpeername | |
406 | # endif | |
407 | _GL_FUNCDECL_RPL (getpeername, int, | |
698be2d8 CB |
408 | (int fd, struct sockaddr *restrict addr, |
409 | socklen_t *restrict addrlen) | |
725e2999 JB |
410 | _GL_ARG_NONNULL ((2, 3))); |
411 | _GL_CXXALIAS_RPL (getpeername, int, | |
698be2d8 CB |
412 | (int fd, struct sockaddr *restrict addr, |
413 | socklen_t *restrict addrlen)); | |
725e2999 JB |
414 | # else |
415 | /* Need to cast, because on Solaris 10 systems, the third parameter is | |
698be2d8 | 416 | void *addrlen. */ |
725e2999 | 417 | _GL_CXXALIAS_SYS_CAST (getpeername, int, |
698be2d8 CB |
418 | (int fd, struct sockaddr *restrict addr, |
419 | socklen_t *restrict addrlen)); | |
725e2999 JB |
420 | # endif |
421 | _GL_CXXALIASWARN (getpeername); | |
422 | #elif @HAVE_WINSOCK2_H@ | |
423 | # undef getpeername | |
424 | # define getpeername getpeername_used_without_requesting_gnulib_module_getpeername | |
425 | #elif defined GNULIB_POSIXCHECK | |
426 | # undef getpeername | |
427 | # if HAVE_RAW_DECL_GETPEERNAME | |
428 | _GL_WARN_ON_USE (getpeername, "getpeername is not always POSIX compliant - " | |
429 | "use gnulib module getpeername for portability"); | |
430 | # endif | |
431 | #endif | |
432 | ||
433 | #if @GNULIB_GETSOCKNAME@ | |
434 | # if @HAVE_WINSOCK2_H@ | |
435 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
436 | # undef getsockname | |
437 | # define getsockname rpl_getsockname | |
438 | # endif | |
439 | _GL_FUNCDECL_RPL (getsockname, int, | |
698be2d8 CB |
440 | (int fd, struct sockaddr *restrict addr, |
441 | socklen_t *restrict addrlen) | |
725e2999 JB |
442 | _GL_ARG_NONNULL ((2, 3))); |
443 | _GL_CXXALIAS_RPL (getsockname, int, | |
698be2d8 CB |
444 | (int fd, struct sockaddr *restrict addr, |
445 | socklen_t *restrict addrlen)); | |
725e2999 JB |
446 | # else |
447 | /* Need to cast, because on Solaris 10 systems, the third parameter is | |
698be2d8 | 448 | void *addrlen. */ |
725e2999 | 449 | _GL_CXXALIAS_SYS_CAST (getsockname, int, |
698be2d8 CB |
450 | (int fd, struct sockaddr *restrict addr, |
451 | socklen_t *restrict addrlen)); | |
725e2999 JB |
452 | # endif |
453 | _GL_CXXALIASWARN (getsockname); | |
454 | #elif @HAVE_WINSOCK2_H@ | |
455 | # undef getsockname | |
456 | # define getsockname getsockname_used_without_requesting_gnulib_module_getsockname | |
457 | #elif defined GNULIB_POSIXCHECK | |
458 | # undef getsockname | |
459 | # if HAVE_RAW_DECL_GETSOCKNAME | |
460 | _GL_WARN_ON_USE (getsockname, "getsockname is not always POSIX compliant - " | |
461 | "use gnulib module getsockname for portability"); | |
462 | # endif | |
463 | #endif | |
464 | ||
465 | #if @GNULIB_GETSOCKOPT@ | |
466 | # if @HAVE_WINSOCK2_H@ | |
467 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
468 | # undef getsockopt | |
469 | # define getsockopt rpl_getsockopt | |
470 | # endif | |
698be2d8 CB |
471 | _GL_FUNCDECL_RPL (getsockopt, int, |
472 | (int fd, int level, int optname, | |
473 | void *restrict optval, socklen_t *restrict optlen) | |
474 | _GL_ARG_NONNULL ((4, 5))); | |
475 | _GL_CXXALIAS_RPL (getsockopt, int, | |
476 | (int fd, int level, int optname, | |
477 | void *restrict optval, socklen_t *restrict optlen)); | |
725e2999 JB |
478 | # else |
479 | /* Need to cast, because on Solaris 10 systems, the fifth parameter is | |
480 | void *optlen. */ | |
698be2d8 CB |
481 | _GL_CXXALIAS_SYS_CAST (getsockopt, int, |
482 | (int fd, int level, int optname, | |
483 | void *restrict optval, socklen_t *restrict optlen)); | |
725e2999 JB |
484 | # endif |
485 | _GL_CXXALIASWARN (getsockopt); | |
486 | #elif @HAVE_WINSOCK2_H@ | |
487 | # undef getsockopt | |
488 | # define getsockopt getsockopt_used_without_requesting_gnulib_module_getsockopt | |
489 | #elif defined GNULIB_POSIXCHECK | |
490 | # undef getsockopt | |
491 | # if HAVE_RAW_DECL_GETSOCKOPT | |
492 | _GL_WARN_ON_USE (getsockopt, "getsockopt is not always POSIX compliant - " | |
493 | "use gnulib module getsockopt for portability"); | |
494 | # endif | |
495 | #endif | |
496 | ||
497 | #if @GNULIB_LISTEN@ | |
498 | # if @HAVE_WINSOCK2_H@ | |
499 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
500 | # undef listen | |
501 | # define listen rpl_listen | |
502 | # endif | |
503 | _GL_FUNCDECL_RPL (listen, int, (int fd, int backlog)); | |
504 | _GL_CXXALIAS_RPL (listen, int, (int fd, int backlog)); | |
505 | # else | |
506 | _GL_CXXALIAS_SYS (listen, int, (int fd, int backlog)); | |
507 | # endif | |
508 | _GL_CXXALIASWARN (listen); | |
509 | #elif @HAVE_WINSOCK2_H@ | |
510 | # undef listen | |
511 | # define listen listen_used_without_requesting_gnulib_module_listen | |
512 | #elif defined GNULIB_POSIXCHECK | |
513 | # undef listen | |
514 | # if HAVE_RAW_DECL_LISTEN | |
515 | _GL_WARN_ON_USE (listen, "listen is not always POSIX compliant - " | |
516 | "use gnulib module listen for portability"); | |
517 | # endif | |
518 | #endif | |
519 | ||
520 | #if @GNULIB_RECV@ | |
521 | # if @HAVE_WINSOCK2_H@ | |
522 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
523 | # undef recv | |
524 | # define recv rpl_recv | |
525 | # endif | |
526 | _GL_FUNCDECL_RPL (recv, ssize_t, (int fd, void *buf, size_t len, int flags) | |
527 | _GL_ARG_NONNULL ((2))); | |
528 | _GL_CXXALIAS_RPL (recv, ssize_t, (int fd, void *buf, size_t len, int flags)); | |
529 | # else | |
c0c3707f CB |
530 | /* Need to cast, because on HP-UX 11.31 the return type may be |
531 | int, | |
532 | depending on compiler options. */ | |
533 | _GL_CXXALIAS_SYS_CAST (recv, ssize_t, (int fd, void *buf, size_t len, int flags)); | |
725e2999 JB |
534 | # endif |
535 | _GL_CXXALIASWARN (recv); | |
536 | #elif @HAVE_WINSOCK2_H@ | |
537 | # undef recv | |
538 | # define recv recv_used_without_requesting_gnulib_module_recv | |
539 | #elif defined GNULIB_POSIXCHECK | |
540 | # undef recv | |
541 | # if HAVE_RAW_DECL_RECV | |
542 | _GL_WARN_ON_USE (recv, "recv is not always POSIX compliant - " | |
543 | "use gnulib module recv for portability"); | |
544 | # endif | |
545 | #endif | |
546 | ||
547 | #if @GNULIB_SEND@ | |
548 | # if @HAVE_WINSOCK2_H@ | |
549 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
550 | # undef send | |
551 | # define send rpl_send | |
552 | # endif | |
553 | _GL_FUNCDECL_RPL (send, ssize_t, | |
554 | (int fd, const void *buf, size_t len, int flags) | |
555 | _GL_ARG_NONNULL ((2))); | |
556 | _GL_CXXALIAS_RPL (send, ssize_t, | |
557 | (int fd, const void *buf, size_t len, int flags)); | |
558 | # else | |
c0c3707f CB |
559 | /* Need to cast, because on HP-UX 11.31 the return type may be |
560 | int, | |
561 | depending on compiler options. */ | |
562 | _GL_CXXALIAS_SYS_CAST (send, ssize_t, | |
563 | (int fd, const void *buf, size_t len, int flags)); | |
725e2999 JB |
564 | # endif |
565 | _GL_CXXALIASWARN (send); | |
566 | #elif @HAVE_WINSOCK2_H@ | |
567 | # undef send | |
568 | # define send send_used_without_requesting_gnulib_module_send | |
569 | #elif defined GNULIB_POSIXCHECK | |
570 | # undef send | |
571 | # if HAVE_RAW_DECL_SEND | |
572 | _GL_WARN_ON_USE (send, "send is not always POSIX compliant - " | |
573 | "use gnulib module send for portability"); | |
574 | # endif | |
575 | #endif | |
576 | ||
577 | #if @GNULIB_RECVFROM@ | |
578 | # if @HAVE_WINSOCK2_H@ | |
579 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
580 | # undef recvfrom | |
581 | # define recvfrom rpl_recvfrom | |
582 | # endif | |
583 | _GL_FUNCDECL_RPL (recvfrom, ssize_t, | |
698be2d8 CB |
584 | (int fd, void *restrict buf, size_t len, int flags, |
585 | struct sockaddr *restrict from, | |
586 | socklen_t *restrict fromlen) | |
725e2999 JB |
587 | _GL_ARG_NONNULL ((2))); |
588 | _GL_CXXALIAS_RPL (recvfrom, ssize_t, | |
698be2d8 CB |
589 | (int fd, void *restrict buf, size_t len, int flags, |
590 | struct sockaddr *restrict from, | |
591 | socklen_t *restrict fromlen)); | |
725e2999 JB |
592 | # else |
593 | /* Need to cast, because on Solaris 10 systems, the sixth parameter is | |
594 | void *fromlen. */ | |
595 | _GL_CXXALIAS_SYS_CAST (recvfrom, ssize_t, | |
698be2d8 CB |
596 | (int fd, void *restrict buf, size_t len, int flags, |
597 | struct sockaddr *restrict from, | |
598 | socklen_t *restrict fromlen)); | |
725e2999 JB |
599 | # endif |
600 | _GL_CXXALIASWARN (recvfrom); | |
601 | #elif @HAVE_WINSOCK2_H@ | |
602 | # undef recvfrom | |
603 | # define recvfrom recvfrom_used_without_requesting_gnulib_module_recvfrom | |
604 | #elif defined GNULIB_POSIXCHECK | |
605 | # undef recvfrom | |
606 | # if HAVE_RAW_DECL_RECVFROM | |
607 | _GL_WARN_ON_USE (recvfrom, "recvfrom is not always POSIX compliant - " | |
608 | "use gnulib module recvfrom for portability"); | |
609 | # endif | |
610 | #endif | |
611 | ||
612 | #if @GNULIB_SENDTO@ | |
613 | # if @HAVE_WINSOCK2_H@ | |
614 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
615 | # undef sendto | |
616 | # define sendto rpl_sendto | |
617 | # endif | |
618 | _GL_FUNCDECL_RPL (sendto, ssize_t, | |
619 | (int fd, const void *buf, size_t len, int flags, | |
620 | const struct sockaddr *to, socklen_t tolen) | |
621 | _GL_ARG_NONNULL ((2))); | |
622 | _GL_CXXALIAS_RPL (sendto, ssize_t, | |
623 | (int fd, const void *buf, size_t len, int flags, | |
624 | const struct sockaddr *to, socklen_t tolen)); | |
625 | # else | |
626 | /* Need to cast, because on NonStop Kernel, the sixth parameter is | |
627 | size_t tolen. */ | |
628 | _GL_CXXALIAS_SYS_CAST (sendto, ssize_t, | |
629 | (int fd, const void *buf, size_t len, int flags, | |
630 | const struct sockaddr *to, socklen_t tolen)); | |
631 | # endif | |
632 | _GL_CXXALIASWARN (sendto); | |
633 | #elif @HAVE_WINSOCK2_H@ | |
634 | # undef sendto | |
635 | # define sendto sendto_used_without_requesting_gnulib_module_sendto | |
636 | #elif defined GNULIB_POSIXCHECK | |
637 | # undef sendto | |
638 | # if HAVE_RAW_DECL_SENDTO | |
639 | _GL_WARN_ON_USE (sendto, "sendto is not always POSIX compliant - " | |
640 | "use gnulib module sendto for portability"); | |
641 | # endif | |
642 | #endif | |
643 | ||
644 | #if @GNULIB_SETSOCKOPT@ | |
645 | # if @HAVE_WINSOCK2_H@ | |
646 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
647 | # undef setsockopt | |
648 | # define setsockopt rpl_setsockopt | |
649 | # endif | |
650 | _GL_FUNCDECL_RPL (setsockopt, int, (int fd, int level, int optname, | |
651 | const void * optval, socklen_t optlen) | |
652 | _GL_ARG_NONNULL ((4))); | |
653 | _GL_CXXALIAS_RPL (setsockopt, int, (int fd, int level, int optname, | |
654 | const void * optval, socklen_t optlen)); | |
655 | # else | |
656 | /* Need to cast, because on NonStop Kernel, the fifth parameter is | |
657 | size_t optlen. */ | |
658 | _GL_CXXALIAS_SYS_CAST (setsockopt, int, | |
659 | (int fd, int level, int optname, | |
660 | const void * optval, socklen_t optlen)); | |
661 | # endif | |
662 | _GL_CXXALIASWARN (setsockopt); | |
663 | #elif @HAVE_WINSOCK2_H@ | |
664 | # undef setsockopt | |
665 | # define setsockopt setsockopt_used_without_requesting_gnulib_module_setsockopt | |
666 | #elif defined GNULIB_POSIXCHECK | |
667 | # undef setsockopt | |
668 | # if HAVE_RAW_DECL_SETSOCKOPT | |
669 | _GL_WARN_ON_USE (setsockopt, "setsockopt is not always POSIX compliant - " | |
670 | "use gnulib module setsockopt for portability"); | |
671 | # endif | |
672 | #endif | |
673 | ||
674 | #if @GNULIB_SHUTDOWN@ | |
675 | # if @HAVE_WINSOCK2_H@ | |
676 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
677 | # undef shutdown | |
678 | # define shutdown rpl_shutdown | |
679 | # endif | |
680 | _GL_FUNCDECL_RPL (shutdown, int, (int fd, int how)); | |
681 | _GL_CXXALIAS_RPL (shutdown, int, (int fd, int how)); | |
682 | # else | |
683 | _GL_CXXALIAS_SYS (shutdown, int, (int fd, int how)); | |
684 | # endif | |
685 | _GL_CXXALIASWARN (shutdown); | |
686 | #elif @HAVE_WINSOCK2_H@ | |
687 | # undef shutdown | |
688 | # define shutdown shutdown_used_without_requesting_gnulib_module_shutdown | |
689 | #elif defined GNULIB_POSIXCHECK | |
690 | # undef shutdown | |
691 | # if HAVE_RAW_DECL_SHUTDOWN | |
692 | _GL_WARN_ON_USE (shutdown, "shutdown is not always POSIX compliant - " | |
693 | "use gnulib module shutdown for portability"); | |
694 | # endif | |
695 | #endif | |
696 | ||
697 | #if @GNULIB_ACCEPT4@ | |
698 | /* Accept a connection on a socket, with specific opening flags. | |
699 | The flags are a bitmask, possibly including O_CLOEXEC (defined in <fcntl.h>) | |
700 | and O_TEXT, O_BINARY (defined in "binary-io.h"). | |
701 | See also the Linux man page at | |
c0c3707f | 702 | <https://www.kernel.org/doc/man-pages/online/pages/man2/accept4.2.html>. */ |
725e2999 JB |
703 | # if @HAVE_ACCEPT4@ |
704 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
705 | # define accept4 rpl_accept4 | |
706 | # endif | |
707 | _GL_FUNCDECL_RPL (accept4, int, | |
708 | (int sockfd, struct sockaddr *addr, socklen_t *addrlen, | |
709 | int flags)); | |
710 | _GL_CXXALIAS_RPL (accept4, int, | |
711 | (int sockfd, struct sockaddr *addr, socklen_t *addrlen, | |
712 | int flags)); | |
713 | # else | |
714 | _GL_FUNCDECL_SYS (accept4, int, | |
715 | (int sockfd, struct sockaddr *addr, socklen_t *addrlen, | |
716 | int flags)); | |
717 | _GL_CXXALIAS_SYS (accept4, int, | |
718 | (int sockfd, struct sockaddr *addr, socklen_t *addrlen, | |
719 | int flags)); | |
720 | # endif | |
721 | _GL_CXXALIASWARN (accept4); | |
722 | #elif defined GNULIB_POSIXCHECK | |
723 | # undef accept4 | |
724 | # if HAVE_RAW_DECL_ACCEPT4 | |
725 | _GL_WARN_ON_USE (accept4, "accept4 is unportable - " | |
726 | "use gnulib module accept4 for portability"); | |
727 | # endif | |
728 | #endif | |
729 | ||
730 | _GL_INLINE_HEADER_END | |
731 | ||
732 | #endif /* _@GUARD_PREFIX@_SYS_SOCKET_H */ | |
733 | #endif /* _@GUARD_PREFIX@_SYS_SOCKET_H */ | |
734 | #endif |