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Update Gnulib to v0.0-7509-g98a2286.
[bpt/guile.git] / lib / sys_socket.in.h
CommitLineData
8912421c
LC		 1/* Provide a sys/socket header file for systems lacking it (read: MinGW)
2 and for systems where it is incomplete.
f0007cad 3 Copyright (C) 2005-2012 Free Software Foundation, Inc.
8912421c
LC		 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, 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
005de2e8 17 along with this program; if not, see <http://www.gnu.org/licenses/>. */
8912421c
LC		 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
a927b6c1
LC		 25#if __GNUC__ >= 3
26@PRAGMA_SYSTEM_HEADER@
27#endif
0f00f2c3 28@PRAGMA_COLUMNS@
a927b6c1 29
f4c79b3c
LC		 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
3d458a81 42#ifndef _@GUARD_PREFIX@_SYS_SOCKET_H
8912421c
LC		 43
44#if @HAVE_SYS_SOCKET_H@
45
f4c79b3c
LC		 46# define _GL_ALREADY_INCLUDING_SYS_SOCKET_H
47
8912421c
LC		 48/* On many platforms, <sys/socket.h> assumes prior inclusion of
49 <sys/types.h>. */
50# include <sys/types.h>
51
dd7d0148
LC		 52/* On FreeBSD 6.4, <sys/socket.h> defines some macros that assume that NULL
53 is defined. */
54# include <stddef.h>
55
8912421c
LC		 56/* The include_next requires a split double-inclusion guard. */
57# @INCLUDE_NEXT@ @NEXT_SYS_SOCKET_H@
58
f4c79b3c
LC		 59# undef _GL_ALREADY_INCLUDING_SYS_SOCKET_H
60
8912421c
LC		 61#endif
62
3d458a81
AW		 63#ifndef _@GUARD_PREFIX@_SYS_SOCKET_H
64#define _@GUARD_PREFIX@_SYS_SOCKET_H
8912421c 65
f4c79b3c
LC		 66/* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
67
1cd4fffc
LC		 68/* The definition of _GL_ARG_NONNULL is copied here. */
69
f4c79b3c
LC		 70/* The definition of _GL_WARN_ON_USE is copied here. */
71
8912421c 72#if !@HAVE_SA_FAMILY_T@
49114fd4 73# if !GNULIB_defined_sa_family_t
8912421c 74typedef unsigned short sa_family_t;
49114fd4
LC		 75# define GNULIB_defined_sa_family_t 1
76# endif
8912421c
LC		 77#endif
78
0f00f2c3
LC		 79#if @HAVE_STRUCT_SOCKADDR_STORAGE@
80/* Make the 'struct sockaddr_storage' field 'ss_family' visible on AIX 7.1. */
81# if !@HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY@
82# ifndef ss_family
83# define ss_family __ss_family
84# endif
85# endif
86#else
7f1ea859 87# include <stdalign.h>
8912421c
LC		 88/* Code taken from glibc sysdeps/unix/sysv/linux/bits/socket.h on
89 2009-05-08, licensed under LGPLv2.1+, plus portability fixes. */
90# define __ss_aligntype unsigned long int
91# define _SS_SIZE 256
92# define _SS_PADSIZE \
1cd4fffc
LC		 93 (_SS_SIZE - ((sizeof (sa_family_t) >= alignof (__ss_aligntype) \
94 ? sizeof (sa_family_t) \
95 : alignof (__ss_aligntype)) \
96 + sizeof (__ss_aligntype)))
8912421c 97
49114fd4 98# if !GNULIB_defined_struct_sockaddr_storage
8912421c
LC		 99struct sockaddr_storage
100{
101 sa_family_t ss_family; /* Address family, etc. */
102 __ss_aligntype __ss_align; /* Force desired alignment. */
103 char __ss_padding[_SS_PADSIZE];
104};
49114fd4
LC		 105# define GNULIB_defined_struct_sockaddr_storage 1
106# endif
107
8912421c
LC		 108#endif
109
3d458a81
AW		 110/* Get struct iovec. */
111/* But avoid namespace pollution on glibc systems. */
112#if ! defined __GLIBC__
113# include <sys/uio.h>
114#endif
115
8912421c
LC		 116#if @HAVE_SYS_SOCKET_H@
117
118/* A platform that has <sys/socket.h>. */
119
120/* For shutdown(). */
121# if !defined SHUT_RD
122# define SHUT_RD 0
123# endif
124# if !defined SHUT_WR
125# define SHUT_WR 1
126# endif
127# if !defined SHUT_RDWR
128# define SHUT_RDWR 2
129# endif
130
131#else
132
133# ifdef __CYGWIN__
134# error "Cygwin does have a sys/socket.h, doesn't it?!?"
135# endif
136
137/* A platform that lacks <sys/socket.h>.
138
139 Currently only MinGW is supported. See the gnulib manual regarding
140 Windows sockets. MinGW has the header files winsock2.h and
141 ws2tcpip.h that declare the sys/socket.h definitions we need. Note
142 that you can influence which definitions you get by setting the
143 WINVER symbol before including these two files. For example,
144 getaddrinfo is only available if _WIN32_WINNT >= 0x0501 (that
005de2e8 145 symbol is set indirectly through WINVER). You can set this by
8912421c
LC		 146 adding AC_DEFINE(WINVER, 0x0501) to configure.ac. Note that your
147 code may not run on older Windows releases then. My Windows 2000
148 box was not able to run the code, for example. The situation is
0f00f2c3
LC		 149 slightly confusing because
150 <http://msdn.microsoft.com/en-us/library/ms738520>
8912421c
LC		 151 suggests that getaddrinfo should be available on all Windows
152 releases. */
153
8912421c
LC		 154# if @HAVE_WINSOCK2_H@
155# include <winsock2.h>
156# endif
157# if @HAVE_WS2TCPIP_H@
158# include <ws2tcpip.h>
159# endif
160
161/* For shutdown(). */
162# if !defined SHUT_RD && defined SD_RECEIVE
163# define SHUT_RD SD_RECEIVE
164# endif
165# if !defined SHUT_WR && defined SD_SEND
166# define SHUT_WR SD_SEND
167# endif
168# if !defined SHUT_RDWR && defined SD_BOTH
169# define SHUT_RDWR SD_BOTH
170# endif
171
8912421c
LC		 172# if @HAVE_WINSOCK2_H@
173/* Include headers needed by the emulation code. */
174# include <sys/types.h>
175# include <io.h>
176
49114fd4 177# if !GNULIB_defined_socklen_t
8912421c 178typedef int socklen_t;
49114fd4
LC		 179# define GNULIB_defined_socklen_t 1
180# endif
8912421c
LC		 181
182# endif
183
dd7d0148
LC		 184/* Rudimentary 'struct msghdr'; this works as long as you don't try to
185 access msg_control or msg_controllen. */
186struct msghdr {
187 void *msg_name;
188 socklen_t msg_namelen;
189 struct iovec *msg_iov;
190 int msg_iovlen;
191 int msg_flags;
192};
193
f4c79b3c 194#endif
8912421c 195
35428fb6
LC		 196/* Fix some definitions from <winsock2.h>. */
197
f4c79b3c 198#if @HAVE_WINSOCK2_H@
8912421c 199
49114fd4
LC		 200# if !GNULIB_defined_rpl_fd_isset
201
8912421c
LC		 202/* Re-define FD_ISSET to avoid a WSA call while we are not using
203 network sockets. */
204static inline int
205rpl_fd_isset (SOCKET fd, fd_set * set)
206{
207 u_int i;
208 if (set == NULL)
209 return 0;
210
211 for (i = 0; i < set->fd_count; i++)
212 if (set->fd_array[i] == fd)
213 return 1;
214
215 return 0;
216}
217
49114fd4
LC		 218# define GNULIB_defined_rpl_fd_isset 1
219# endif
220
f4c79b3c
LC		 221# undef FD_ISSET
222# define FD_ISSET(fd, set) rpl_fd_isset(fd, set)
8912421c 223
f4c79b3c 224#endif
8912421c 225
35428fb6 226/* Hide some function declarations from <winsock2.h>. */
8912421c 227
35428fb6
LC		 228#if @HAVE_WINSOCK2_H@
229# if !defined _@GUARD_PREFIX@_UNISTD_H
230# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
231# undef close
232# define close close_used_without_including_unistd_h
233# else
234 _GL_WARN_ON_USE (close,
235 "close() used without including <unistd.h>");
236# endif
237# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
238# undef gethostname
239# define gethostname gethostname_used_without_including_unistd_h
240# else
241 _GL_WARN_ON_USE (gethostname,
242 "gethostname() used without including <unistd.h>");
243# endif
a927b6c1 244# endif
35428fb6
LC		 245# if !defined _@GUARD_PREFIX@_SYS_SELECT_H
246# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
247# undef select
248# define select select_used_without_including_sys_select_h
249# else
250 _GL_WARN_ON_USE (select,
251 "select() used without including <sys/select.h>");
252# endif
a927b6c1 253# endif
f4c79b3c 254#endif
8912421c 255
35428fb6
LC		 256/* Wrap everything else to use libc file descriptors for sockets. */
257
f4c79b3c
LC		 258#if @GNULIB_SOCKET@
259# if @HAVE_WINSOCK2_H@
260# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
8912421c 261# undef socket
f4c79b3c 262# define socket rpl_socket
8912421c 263# endif
f4c79b3c
LC		 264_GL_FUNCDECL_RPL (socket, int, (int domain, int type, int protocol));
265_GL_CXXALIAS_RPL (socket, int, (int domain, int type, int protocol));
266# else
267_GL_CXXALIAS_SYS (socket, int, (int domain, int type, int protocol));
268# endif
269_GL_CXXALIASWARN (socket);
270#elif @HAVE_WINSOCK2_H@
271# undef socket
272# define socket socket_used_without_requesting_gnulib_module_socket
273#elif defined GNULIB_POSIXCHECK
274# undef socket
275# if HAVE_RAW_DECL_SOCKET
61cd9dc9
LC		 276_GL_WARN_ON_USE (socket, "socket is not always POSIX compliant - "
277 "use gnulib module socket for portability");
8912421c 278# endif
f4c79b3c 279#endif
8912421c 280
f4c79b3c
LC		 281#if @GNULIB_CONNECT@
282# if @HAVE_WINSOCK2_H@
283# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
8912421c 284# undef connect
f4c79b3c 285# define connect rpl_connect
8912421c 286# endif
f4c79b3c
LC		 287_GL_FUNCDECL_RPL (connect, int,
288 (int fd, const struct sockaddr *addr, socklen_t addrlen)
289 _GL_ARG_NONNULL ((2)));
290_GL_CXXALIAS_RPL (connect, int,
291 (int fd, const struct sockaddr *addr, socklen_t addrlen));
292# else
49114fd4
LC		 293/* Need to cast, because on NonStop Kernel, the third parameter is
294 size_t addrlen. */
295_GL_CXXALIAS_SYS_CAST (connect, int,
296 (int fd,
297 const struct sockaddr *addr, socklen_t addrlen));
f4c79b3c
LC		 298# endif
299_GL_CXXALIASWARN (connect);
300#elif @HAVE_WINSOCK2_H@
301# undef connect
302# define connect socket_used_without_requesting_gnulib_module_connect
303#elif defined GNULIB_POSIXCHECK
304# undef connect
305# if HAVE_RAW_DECL_CONNECT
61cd9dc9
LC		 306_GL_WARN_ON_USE (connect, "connect is not always POSIX compliant - "
307 "use gnulib module connect for portability");
8912421c 308# endif
f4c79b3c 309#endif
8912421c 310
f4c79b3c
LC		 311#if @GNULIB_ACCEPT@
312# if @HAVE_WINSOCK2_H@
313# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
8912421c 314# undef accept
f4c79b3c 315# define accept rpl_accept
8912421c 316# endif
f4c79b3c
LC		 317_GL_FUNCDECL_RPL (accept, int,
318 (int fd, struct sockaddr *addr, socklen_t *addrlen));
319_GL_CXXALIAS_RPL (accept, int,
320 (int fd, struct sockaddr *addr, socklen_t *addrlen));
321# else
322/* Need to cast, because on Solaris 10 systems, the third parameter is
323 void *addrlen. */
324_GL_CXXALIAS_SYS_CAST (accept, int,
325 (int fd, struct sockaddr *addr, socklen_t *addrlen));
326# endif
327_GL_CXXALIASWARN (accept);
328#elif @HAVE_WINSOCK2_H@
329# undef accept
330# define accept accept_used_without_requesting_gnulib_module_accept
331#elif defined GNULIB_POSIXCHECK
332# undef accept
61cd9dc9
LC		 333# if HAVE_RAW_DECL_ACCEPT
334_GL_WARN_ON_USE (accept, "accept is not always POSIX compliant - "
335 "use gnulib module accept for portability");
8912421c 336# endif
f4c79b3c 337#endif
8912421c 338
f4c79b3c
LC		 339#if @GNULIB_BIND@
340# if @HAVE_WINSOCK2_H@
341# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
8912421c 342# undef bind
f4c79b3c 343# define bind rpl_bind
8912421c 344# endif
f4c79b3c
LC		 345_GL_FUNCDECL_RPL (bind, int,
346 (int fd, const struct sockaddr *addr, socklen_t addrlen)
347 _GL_ARG_NONNULL ((2)));
348_GL_CXXALIAS_RPL (bind, int,
349 (int fd, const struct sockaddr *addr, socklen_t addrlen));
350# else
49114fd4
LC		 351/* Need to cast, because on NonStop Kernel, the third parameter is
352 size_t addrlen. */
353_GL_CXXALIAS_SYS_CAST (bind, int,
354 (int fd,
355 const struct sockaddr *addr, socklen_t addrlen));
f4c79b3c
LC		 356# endif
357_GL_CXXALIASWARN (bind);
358#elif @HAVE_WINSOCK2_H@
359# undef bind
360# define bind bind_used_without_requesting_gnulib_module_bind
361#elif defined GNULIB_POSIXCHECK
362# undef bind
363# if HAVE_RAW_DECL_BIND
61cd9dc9
LC		 364_GL_WARN_ON_USE (bind, "bind is not always POSIX compliant - "
365 "use gnulib module bind for portability");
8912421c 366# endif
f4c79b3c 367#endif
8912421c 368
f4c79b3c
LC		 369#if @GNULIB_GETPEERNAME@
370# if @HAVE_WINSOCK2_H@
371# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
8912421c 372# undef getpeername
f4c79b3c 373# define getpeername rpl_getpeername
8912421c 374# endif
f4c79b3c
LC		 375_GL_FUNCDECL_RPL (getpeername, int,
376 (int fd, struct sockaddr *addr, socklen_t *addrlen)
377 _GL_ARG_NONNULL ((2, 3)));
378_GL_CXXALIAS_RPL (getpeername, int,
379 (int fd, struct sockaddr *addr, socklen_t *addrlen));
380# else
381/* Need to cast, because on Solaris 10 systems, the third parameter is
382 void *addrlen. */
383_GL_CXXALIAS_SYS_CAST (getpeername, int,
384 (int fd, struct sockaddr *addr, socklen_t *addrlen));
385# endif
386_GL_CXXALIASWARN (getpeername);
387#elif @HAVE_WINSOCK2_H@
388# undef getpeername
389# define getpeername getpeername_used_without_requesting_gnulib_module_getpeername
390#elif defined GNULIB_POSIXCHECK
391# undef getpeername
392# if HAVE_RAW_DECL_GETPEERNAME
61cd9dc9
LC		 393_GL_WARN_ON_USE (getpeername, "getpeername is not always POSIX compliant - "
394 "use gnulib module getpeername for portability");
8912421c 395# endif
f4c79b3c 396#endif
8912421c 397
f4c79b3c
LC		 398#if @GNULIB_GETSOCKNAME@
399# if @HAVE_WINSOCK2_H@
400# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
8912421c 401# undef getsockname
f4c79b3c 402# define getsockname rpl_getsockname
8912421c 403# endif
f4c79b3c
LC		 404_GL_FUNCDECL_RPL (getsockname, int,
405 (int fd, struct sockaddr *addr, socklen_t *addrlen)
406 _GL_ARG_NONNULL ((2, 3)));
407_GL_CXXALIAS_RPL (getsockname, int,
408 (int fd, struct sockaddr *addr, socklen_t *addrlen));
409# else
410/* Need to cast, because on Solaris 10 systems, the third parameter is
411 void *addrlen. */
412_GL_CXXALIAS_SYS_CAST (getsockname, int,
413 (int fd, struct sockaddr *addr, socklen_t *addrlen));
414# endif
415_GL_CXXALIASWARN (getsockname);
416#elif @HAVE_WINSOCK2_H@
417# undef getsockname
418# define getsockname getsockname_used_without_requesting_gnulib_module_getsockname
419#elif defined GNULIB_POSIXCHECK
420# undef getsockname
421# if HAVE_RAW_DECL_GETSOCKNAME
61cd9dc9
LC		 422_GL_WARN_ON_USE (getsockname, "getsockname is not always POSIX compliant - "
423 "use gnulib module getsockname for portability");
8912421c 424# endif
f4c79b3c 425#endif
8912421c 426
f4c79b3c
LC		 427#if @GNULIB_GETSOCKOPT@
428# if @HAVE_WINSOCK2_H@
429# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
8912421c 430# undef getsockopt
f4c79b3c 431# define getsockopt rpl_getsockopt
8912421c 432# endif
f4c79b3c
LC		 433_GL_FUNCDECL_RPL (getsockopt, int, (int fd, int level, int optname,
434 void *optval, socklen_t *optlen)
435 _GL_ARG_NONNULL ((4, 5)));
436_GL_CXXALIAS_RPL (getsockopt, int, (int fd, int level, int optname,
437 void *optval, socklen_t *optlen));
438# else
439/* Need to cast, because on Solaris 10 systems, the fifth parameter is
440 void *optlen. */
441_GL_CXXALIAS_SYS_CAST (getsockopt, int, (int fd, int level, int optname,
442 void *optval, socklen_t *optlen));
443# endif
444_GL_CXXALIASWARN (getsockopt);
445#elif @HAVE_WINSOCK2_H@
446# undef getsockopt
447# define getsockopt getsockopt_used_without_requesting_gnulib_module_getsockopt
448#elif defined GNULIB_POSIXCHECK
449# undef getsockopt
450# if HAVE_RAW_DECL_GETSOCKOPT
61cd9dc9
LC		 451_GL_WARN_ON_USE (getsockopt, "getsockopt is not always POSIX compliant - "
452 "use gnulib module getsockopt for portability");
8912421c 453# endif
f4c79b3c 454#endif
8912421c 455
f4c79b3c
LC		 456#if @GNULIB_LISTEN@
457# if @HAVE_WINSOCK2_H@
458# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
8912421c 459# undef listen
f4c79b3c 460# define listen rpl_listen
8912421c 461# endif
f4c79b3c
LC		 462_GL_FUNCDECL_RPL (listen, int, (int fd, int backlog));
463_GL_CXXALIAS_RPL (listen, int, (int fd, int backlog));
464# else
465_GL_CXXALIAS_SYS (listen, int, (int fd, int backlog));
466# endif
467_GL_CXXALIASWARN (listen);
468#elif @HAVE_WINSOCK2_H@
469# undef listen
470# define listen listen_used_without_requesting_gnulib_module_listen
471#elif defined GNULIB_POSIXCHECK
472# undef listen
473# if HAVE_RAW_DECL_LISTEN
61cd9dc9
LC		 474_GL_WARN_ON_USE (listen, "listen is not always POSIX compliant - "
475 "use gnulib module listen for portability");
8912421c 476# endif
f4c79b3c 477#endif
8912421c 478
f4c79b3c
LC		 479#if @GNULIB_RECV@
480# if @HAVE_WINSOCK2_H@
481# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
8912421c 482# undef recv
f4c79b3c 483# define recv rpl_recv
8912421c 484# endif
f4c79b3c
LC		 485_GL_FUNCDECL_RPL (recv, ssize_t, (int fd, void *buf, size_t len, int flags)
486 _GL_ARG_NONNULL ((2)));
487_GL_CXXALIAS_RPL (recv, ssize_t, (int fd, void *buf, size_t len, int flags));
488# else
489_GL_CXXALIAS_SYS (recv, ssize_t, (int fd, void *buf, size_t len, int flags));
490# endif
491_GL_CXXALIASWARN (recv);
492#elif @HAVE_WINSOCK2_H@
493# undef recv
494# define recv recv_used_without_requesting_gnulib_module_recv
495#elif defined GNULIB_POSIXCHECK
496# undef recv
497# if HAVE_RAW_DECL_RECV
61cd9dc9
LC		 498_GL_WARN_ON_USE (recv, "recv is not always POSIX compliant - "
499 "use gnulib module recv for portability");
8912421c 500# endif
f4c79b3c 501#endif
8912421c 502
f4c79b3c
LC		 503#if @GNULIB_SEND@
504# if @HAVE_WINSOCK2_H@
505# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
8912421c 506# undef send
f4c79b3c 507# define send rpl_send
8912421c 508# endif
f4c79b3c
LC		 509_GL_FUNCDECL_RPL (send, ssize_t,
510 (int fd, const void *buf, size_t len, int flags)
511 _GL_ARG_NONNULL ((2)));
512_GL_CXXALIAS_RPL (send, ssize_t,
513 (int fd, const void *buf, size_t len, int flags));
514# else
515_GL_CXXALIAS_SYS (send, ssize_t,
516 (int fd, const void *buf, size_t len, int flags));
517# endif
518_GL_CXXALIASWARN (send);
519#elif @HAVE_WINSOCK2_H@
520# undef send
521# define send send_used_without_requesting_gnulib_module_send
522#elif defined GNULIB_POSIXCHECK
523# undef send
524# if HAVE_RAW_DECL_SEND
61cd9dc9
LC		 525_GL_WARN_ON_USE (send, "send is not always POSIX compliant - "
526 "use gnulib module send for portability");
8912421c 527# endif
f4c79b3c 528#endif
8912421c 529
f4c79b3c
LC		 530#if @GNULIB_RECVFROM@
531# if @HAVE_WINSOCK2_H@
532# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
8912421c 533# undef recvfrom
f4c79b3c 534# define recvfrom rpl_recvfrom
8912421c 535# endif
f4c79b3c
LC		 536_GL_FUNCDECL_RPL (recvfrom, ssize_t,
537 (int fd, void *buf, size_t len, int flags,
538 struct sockaddr *from, socklen_t *fromlen)
539 _GL_ARG_NONNULL ((2)));
540_GL_CXXALIAS_RPL (recvfrom, ssize_t,
541 (int fd, void *buf, size_t len, int flags,
542 struct sockaddr *from, socklen_t *fromlen));
543# else
544/* Need to cast, because on Solaris 10 systems, the sixth parameter is
545 void *fromlen. */
546_GL_CXXALIAS_SYS_CAST (recvfrom, ssize_t,
547 (int fd, void *buf, size_t len, int flags,
548 struct sockaddr *from, socklen_t *fromlen));
549# endif
550_GL_CXXALIASWARN (recvfrom);
551#elif @HAVE_WINSOCK2_H@
552# undef recvfrom
553# define recvfrom recvfrom_used_without_requesting_gnulib_module_recvfrom
554#elif defined GNULIB_POSIXCHECK
555# undef recvfrom
556# if HAVE_RAW_DECL_RECVFROM
61cd9dc9
LC		 557_GL_WARN_ON_USE (recvfrom, "recvfrom is not always POSIX compliant - "
558 "use gnulib module recvfrom for portability");
8912421c 559# endif
f4c79b3c 560#endif
8912421c 561
f4c79b3c
LC		 562#if @GNULIB_SENDTO@
563# if @HAVE_WINSOCK2_H@
564# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
8912421c 565# undef sendto
f4c79b3c 566# define sendto rpl_sendto
8912421c 567# endif
f4c79b3c
LC		 568_GL_FUNCDECL_RPL (sendto, ssize_t,
569 (int fd, const void *buf, size_t len, int flags,
570 const struct sockaddr *to, socklen_t tolen)
571 _GL_ARG_NONNULL ((2)));
572_GL_CXXALIAS_RPL (sendto, ssize_t,
573 (int fd, const void *buf, size_t len, int flags,
574 const struct sockaddr *to, socklen_t tolen));
575# else
49114fd4
LC		 576/* Need to cast, because on NonStop Kernel, the sixth parameter is
577 size_t tolen. */
578_GL_CXXALIAS_SYS_CAST (sendto, ssize_t,
579 (int fd, const void *buf, size_t len, int flags,
580 const struct sockaddr *to, socklen_t tolen));
f4c79b3c
LC		 581# endif
582_GL_CXXALIASWARN (sendto);
583#elif @HAVE_WINSOCK2_H@
584# undef sendto
585# define sendto sendto_used_without_requesting_gnulib_module_sendto
586#elif defined GNULIB_POSIXCHECK
587# undef sendto
588# if HAVE_RAW_DECL_SENDTO
61cd9dc9
LC		 589_GL_WARN_ON_USE (sendto, "sendto is not always POSIX compliant - "
590 "use gnulib module sendto for portability");
8912421c 591# endif
f4c79b3c 592#endif
8912421c 593
f4c79b3c
LC		 594#if @GNULIB_SETSOCKOPT@
595# if @HAVE_WINSOCK2_H@
596# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
8912421c 597# undef setsockopt
f4c79b3c 598# define setsockopt rpl_setsockopt
8912421c 599# endif
f4c79b3c
LC		 600_GL_FUNCDECL_RPL (setsockopt, int, (int fd, int level, int optname,
601 const void * optval, socklen_t optlen)
602 _GL_ARG_NONNULL ((4)));
603_GL_CXXALIAS_RPL (setsockopt, int, (int fd, int level, int optname,
604 const void * optval, socklen_t optlen));
605# else
49114fd4
LC		 606/* Need to cast, because on NonStop Kernel, the fifth parameter is
607 size_t optlen. */
608_GL_CXXALIAS_SYS_CAST (setsockopt, int,
609 (int fd, int level, int optname,
610 const void * optval, socklen_t optlen));
f4c79b3c
LC		 611# endif
612_GL_CXXALIASWARN (setsockopt);
613#elif @HAVE_WINSOCK2_H@
614# undef setsockopt
615# define setsockopt setsockopt_used_without_requesting_gnulib_module_setsockopt
616#elif defined GNULIB_POSIXCHECK
617# undef setsockopt
618# if HAVE_RAW_DECL_SETSOCKOPT
61cd9dc9
LC		 619_GL_WARN_ON_USE (setsockopt, "setsockopt is not always POSIX compliant - "
620 "use gnulib module setsockopt for portability");
8912421c 621# endif
f4c79b3c 622#endif
8912421c 623
f4c79b3c
LC		 624#if @GNULIB_SHUTDOWN@
625# if @HAVE_WINSOCK2_H@
626# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
8912421c 627# undef shutdown
f4c79b3c 628# define shutdown rpl_shutdown
8912421c 629# endif
f4c79b3c
LC		 630_GL_FUNCDECL_RPL (shutdown, int, (int fd, int how));
631_GL_CXXALIAS_RPL (shutdown, int, (int fd, int how));
632# else
633_GL_CXXALIAS_SYS (shutdown, int, (int fd, int how));
634# endif
635_GL_CXXALIASWARN (shutdown);
636#elif @HAVE_WINSOCK2_H@
637# undef shutdown
638# define shutdown shutdown_used_without_requesting_gnulib_module_shutdown
639#elif defined GNULIB_POSIXCHECK
640# undef shutdown
641# if HAVE_RAW_DECL_SHUTDOWN
61cd9dc9
LC		 642_GL_WARN_ON_USE (shutdown, "shutdown is not always POSIX compliant - "
643 "use gnulib module shutdown for portability");
8912421c 644# endif
f4c79b3c 645#endif
8912421c 646
8912421c
LC		 647#if @GNULIB_ACCEPT4@
648/* Accept a connection on a socket, with specific opening flags.
649 The flags are a bitmask, possibly including O_CLOEXEC (defined in <fcntl.h>)
650 and O_TEXT, O_BINARY (defined in "binary-io.h").
651 See also the Linux man page at
652 <http://www.kernel.org/doc/man-pages/online/pages/man2/accept4.2.html>. */
653# if @HAVE_ACCEPT4@
f4c79b3c
LC		 654# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
655# define accept4 rpl_accept4
656# endif
657_GL_FUNCDECL_RPL (accept4, int,
658 (int sockfd, struct sockaddr *addr, socklen_t *addrlen,
659 int flags));
660_GL_CXXALIAS_RPL (accept4, int,
661 (int sockfd, struct sockaddr *addr, socklen_t *addrlen,
662 int flags));
663# else
664_GL_FUNCDECL_SYS (accept4, int,
665 (int sockfd, struct sockaddr *addr, socklen_t *addrlen,
666 int flags));
667_GL_CXXALIAS_SYS (accept4, int,
668 (int sockfd, struct sockaddr *addr, socklen_t *addrlen,
669 int flags));
670# endif
671_GL_CXXALIASWARN (accept4);
8912421c
LC		 672#elif defined GNULIB_POSIXCHECK
673# undef accept4
61cd9dc9
LC		 674# if HAVE_RAW_DECL_ACCEPT4
675_GL_WARN_ON_USE (accept4, "accept4 is unportable - "
676 "use gnulib module accept4 for portability");
677# endif
8912421c
LC		 678#endif
679
3d458a81
AW		 680#endif /* _@GUARD_PREFIX@_SYS_SOCKET_H */
681#endif /* _@GUARD_PREFIX@_SYS_SOCKET_H */
f4c79b3c 682#endif
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