| 1 | /* Provide a sys/socket header file for systems lacking it (read: MinGW) |
| 2 | and for systems where it is incomplete. |
| 3 | Copyright (C) 2005-2020 Free Software Foundation, Inc. |
| 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 |
| 17 | along with this program; if not, see <https://www.gnu.org/licenses/>. */ |
| 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 |
| 82 | /* On OS/2 kLIBC, sa_family_t is unsigned char unless TCPV40HDRS is defined. */ |
| 83 | # if !defined __KLIBC__ || defined TCPV40HDRS |
| 84 | typedef unsigned short sa_family_t; |
| 85 | # else |
| 86 | typedef unsigned char sa_family_t; |
| 87 | # endif |
| 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 | |
| 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 | |
| 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 |
| 172 | <https://docs.microsoft.com/en-us/windows/desktop/api/ws2tcpip/nf-ws2tcpip-getaddrinfo> |
| 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 | |
| 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 | |
| 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 |
| 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)); |
| 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 |
| 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)); |
| 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 |
| 689 | <https://www.kernel.org/doc/man-pages/online/pages/man2/accept4.2.html>. */ |
| 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 |