| 1 | /* Substitute for <sys/select.h>.
|
|---|
| 2 | Copyright (C) 2007-2021 Free Software Foundation, Inc.
|
|---|
| 3 |
|
|---|
| 4 | This file is free software: you can redistribute it and/or modify
|
|---|
| 5 | it under the terms of the GNU Lesser General Public License as
|
|---|
| 6 | published by the Free Software Foundation; either version 2.1 of the
|
|---|
| 7 | License, or (at your option) any later version.
|
|---|
| 8 |
|
|---|
| 9 | This file is distributed in the hope that it will be useful,
|
|---|
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|---|
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|---|
| 12 | GNU Lesser General Public License for more details.
|
|---|
| 13 |
|
|---|
| 14 | You should have received a copy of the GNU Lesser General Public License
|
|---|
| 15 | along with this program. If not, see <https://www.gnu.org/licenses/>. */
|
|---|
| 16 |
|
|---|
| 17 | # if __GNUC__ >= 3
|
|---|
| 18 | @PRAGMA_SYSTEM_HEADER@
|
|---|
| 19 | # endif
|
|---|
| 20 | @PRAGMA_COLUMNS@
|
|---|
| 21 |
|
|---|
| 22 | /* On OSF/1 and Solaris 2.6, <sys/types.h> and <sys/time.h>
|
|---|
| 23 | both include <sys/select.h>.
|
|---|
| 24 | On Cygwin, <sys/time.h> includes <sys/select.h>.
|
|---|
| 25 | Simply delegate to the system's header in this case. */
|
|---|
| 26 | #if (@HAVE_SYS_SELECT_H@ \
|
|---|
| 27 | && !defined _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_TYPES_H \
|
|---|
| 28 | && ((defined __osf__ && defined _SYS_TYPES_H_ \
|
|---|
| 29 | && defined _OSF_SOURCE) \
|
|---|
| 30 | || (defined __sun && defined _SYS_TYPES_H \
|
|---|
| 31 | && (! (defined _XOPEN_SOURCE || defined _POSIX_C_SOURCE) \
|
|---|
| 32 | || defined __EXTENSIONS__))))
|
|---|
| 33 |
|
|---|
| 34 | # define _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_TYPES_H
|
|---|
| 35 | # @INCLUDE_NEXT@ @NEXT_SYS_SELECT_H@
|
|---|
| 36 |
|
|---|
| 37 | #elif (@HAVE_SYS_SELECT_H@ \
|
|---|
| 38 | && (defined _CYGWIN_SYS_TIME_H \
|
|---|
| 39 | || (!defined _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_TIME_H \
|
|---|
| 40 | && ((defined __osf__ && defined _SYS_TIME_H_ \
|
|---|
| 41 | && defined _OSF_SOURCE) \
|
|---|
| 42 | || (defined __sun && defined _SYS_TIME_H \
|
|---|
| 43 | && (! (defined _XOPEN_SOURCE \
|
|---|
| 44 | || defined _POSIX_C_SOURCE) \
|
|---|
| 45 | || defined __EXTENSIONS__))))))
|
|---|
| 46 |
|
|---|
| 47 | # define _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_TIME_H
|
|---|
| 48 | # @INCLUDE_NEXT@ @NEXT_SYS_SELECT_H@
|
|---|
| 49 |
|
|---|
| 50 | /* On IRIX 6.5, <sys/timespec.h> includes <sys/types.h>, which includes
|
|---|
| 51 | <sys/bsd_types.h>, which includes <sys/select.h>. At this point we cannot
|
|---|
| 52 | include <signal.h>, because that includes <internal/signal_core.h>, which
|
|---|
| 53 | gives a syntax error because <sys/timespec.h> has not been completely
|
|---|
| 54 | processed. Simply delegate to the system's header in this case. */
|
|---|
| 55 | #elif @HAVE_SYS_SELECT_H@ && defined __sgi && (defined _SYS_BSD_TYPES_H && !defined _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_BSD_TYPES_H)
|
|---|
| 56 |
|
|---|
| 57 | # define _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_BSD_TYPES_H
|
|---|
| 58 | # @INCLUDE_NEXT@ @NEXT_SYS_SELECT_H@
|
|---|
| 59 |
|
|---|
| 60 | /* On OpenBSD 5.0, <pthread.h> includes <sys/types.h>, which includes
|
|---|
| 61 | <sys/select.h>. At this point we cannot include <signal.h>, because that
|
|---|
| 62 | includes gnulib's pthread.h override, which gives a syntax error because
|
|---|
| 63 | /usr/include/pthread.h has not been completely processed. Simply delegate
|
|---|
| 64 | to the system's header in this case. */
|
|---|
| 65 | #elif @HAVE_SYS_SELECT_H@ && defined __OpenBSD__ && (defined _PTHREAD_H_ && !defined PTHREAD_MUTEX_INITIALIZER)
|
|---|
| 66 |
|
|---|
| 67 | # @INCLUDE_NEXT@ @NEXT_SYS_SELECT_H@
|
|---|
| 68 |
|
|---|
| 69 | #else
|
|---|
| 70 |
|
|---|
| 71 | #ifndef _@GUARD_PREFIX@_SYS_SELECT_H
|
|---|
| 72 |
|
|---|
| 73 | /* On many platforms, <sys/select.h> assumes prior inclusion of
|
|---|
| 74 | <sys/types.h>. Also, mingw defines sigset_t there, instead of
|
|---|
| 75 | in <signal.h> where it belongs. */
|
|---|
| 76 | #include <sys/types.h>
|
|---|
| 77 |
|
|---|
| 78 | #if @HAVE_SYS_SELECT_H@
|
|---|
| 79 |
|
|---|
| 80 | /* On OSF/1 4.0, <sys/select.h> provides only a forward declaration
|
|---|
| 81 | of 'struct timeval', and no definition of this type.
|
|---|
| 82 | Also, Mac OS X, AIX, HP-UX, IRIX, Solaris, Interix declare select()
|
|---|
| 83 | in <sys/time.h>.
|
|---|
| 84 | But avoid namespace pollution on glibc systems and "unknown type
|
|---|
| 85 | name" problems on Cygwin. */
|
|---|
| 86 | # if !(defined __GLIBC__ || defined __CYGWIN__)
|
|---|
| 87 | # include <sys/time.h>
|
|---|
| 88 | # endif
|
|---|
| 89 |
|
|---|
| 90 | /* On AIX 7 and Solaris 10, <sys/select.h> provides an FD_ZERO implementation
|
|---|
| 91 | that relies on memset(), but without including <string.h>.
|
|---|
| 92 | But in any case avoid namespace pollution on glibc systems. */
|
|---|
| 93 | # if (defined __OpenBSD__ || defined _AIX || defined __sun || defined __osf__ || defined __BEOS__) \
|
|---|
| 94 | && ! defined __GLIBC__
|
|---|
| 95 | # include <string.h>
|
|---|
| 96 | # endif
|
|---|
| 97 |
|
|---|
| 98 | /* The include_next requires a split double-inclusion guard. */
|
|---|
| 99 | # @INCLUDE_NEXT@ @NEXT_SYS_SELECT_H@
|
|---|
| 100 |
|
|---|
| 101 | #endif
|
|---|
| 102 |
|
|---|
| 103 | /* Get definition of 'sigset_t'.
|
|---|
| 104 | But avoid namespace pollution on glibc systems and "unknown type
|
|---|
| 105 | name" problems on Cygwin.
|
|---|
| 106 | On OS/2 kLIBC, sigset_t is defined in <sys/select.h>, too. In addition,
|
|---|
| 107 | if <sys/param.h> is included, <types.h> -> <sys/types.h> -> <sys/select.h>
|
|---|
| 108 | are included. Then <signal.h> -> <pthread.h> are included by GNULIB. By the
|
|---|
| 109 | way, <pthread.h> requires PAGE_SIZE defined in <sys/param.h>. However,
|
|---|
| 110 | <sys/param.h> has not been processed, yet. As a result, 'PAGE_SIZE'
|
|---|
| 111 | undeclared error occurs in <pthread.h>.
|
|---|
| 112 | Do this after the include_next (for the sake of OpenBSD 5.0) but before
|
|---|
| 113 | the split double-inclusion guard (for the sake of Solaris). */
|
|---|
| 114 | #if !((defined __GLIBC__ || defined __CYGWIN__ || defined __KLIBC__) \
|
|---|
| 115 | && !defined __UCLIBC__)
|
|---|
| 116 | # include <signal.h>
|
|---|
| 117 | #endif
|
|---|
| 118 |
|
|---|
| 119 | #ifndef _@GUARD_PREFIX@_SYS_SELECT_H
|
|---|
| 120 | #define _@GUARD_PREFIX@_SYS_SELECT_H
|
|---|
| 121 |
|
|---|
| 122 | #if !@HAVE_SYS_SELECT_H@
|
|---|
| 123 | /* A platform that lacks <sys/select.h>. */
|
|---|
| 124 | /* Get the 'struct timeval' and 'fd_set' types and the FD_* macros
|
|---|
| 125 | on most platforms. */
|
|---|
| 126 | # include <sys/time.h>
|
|---|
| 127 | /* On HP-UX 11, <sys/time.h> provides an FD_ZERO implementation
|
|---|
| 128 | that relies on memset(), but without including <string.h>. */
|
|---|
| 129 | # if defined __hpux
|
|---|
| 130 | # include <string.h>
|
|---|
| 131 | # endif
|
|---|
| 132 | /* On native Windows platforms:
|
|---|
| 133 | Get the 'fd_set' type.
|
|---|
| 134 | Get the close() declaration before we override it. */
|
|---|
| 135 | # if @HAVE_WINSOCK2_H@
|
|---|
| 136 | # if !defined _GL_INCLUDING_WINSOCK2_H
|
|---|
| 137 | # define _GL_INCLUDING_WINSOCK2_H
|
|---|
| 138 | # include <winsock2.h>
|
|---|
| 139 | # undef _GL_INCLUDING_WINSOCK2_H
|
|---|
| 140 | # endif
|
|---|
| 141 | # include <io.h>
|
|---|
| 142 | # endif
|
|---|
| 143 | #endif
|
|---|
| 144 |
|
|---|
| 145 | /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
|
|---|
| 146 |
|
|---|
| 147 | /* The definition of _GL_WARN_ON_USE is copied here. */
|
|---|
| 148 |
|
|---|
| 149 |
|
|---|
| 150 | /* Fix some definitions from <winsock2.h>. */
|
|---|
| 151 |
|
|---|
| 152 | #if @HAVE_WINSOCK2_H@
|
|---|
| 153 |
|
|---|
| 154 | # if !GNULIB_defined_rpl_fd_isset
|
|---|
| 155 |
|
|---|
| 156 | /* Re-define FD_ISSET to avoid a WSA call while we are not using
|
|---|
| 157 | network sockets. */
|
|---|
| 158 | static int
|
|---|
| 159 | rpl_fd_isset (SOCKET fd, fd_set * set)
|
|---|
| 160 | {
|
|---|
| 161 | u_int i;
|
|---|
| 162 | if (set == NULL)
|
|---|
| 163 | return 0;
|
|---|
| 164 |
|
|---|
| 165 | for (i = 0; i < set->fd_count; i++)
|
|---|
| 166 | if (set->fd_array[i] == fd)
|
|---|
| 167 | return 1;
|
|---|
| 168 |
|
|---|
| 169 | return 0;
|
|---|
| 170 | }
|
|---|
| 171 |
|
|---|
| 172 | # define GNULIB_defined_rpl_fd_isset 1
|
|---|
| 173 | # endif
|
|---|
| 174 |
|
|---|
| 175 | # undef FD_ISSET
|
|---|
| 176 | # define FD_ISSET(fd, set) rpl_fd_isset(fd, set)
|
|---|
| 177 |
|
|---|
| 178 | #endif
|
|---|
| 179 |
|
|---|
| 180 | /* Hide some function declarations from <winsock2.h>. */
|
|---|
| 181 |
|
|---|
| 182 | #if @HAVE_WINSOCK2_H@
|
|---|
| 183 | # if !defined _@GUARD_PREFIX@_UNISTD_H
|
|---|
| 184 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 185 | # undef close
|
|---|
| 186 | # define close close_used_without_including_unistd_h
|
|---|
| 187 | # elif !defined __clang__
|
|---|
| 188 | _GL_WARN_ON_USE (close,
|
|---|
| 189 | "close() used without including <unistd.h>");
|
|---|
| 190 | # endif
|
|---|
| 191 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 192 | # undef gethostname
|
|---|
| 193 | # define gethostname gethostname_used_without_including_unistd_h
|
|---|
| 194 | # elif !defined __clang__
|
|---|
| 195 | _GL_WARN_ON_USE (gethostname,
|
|---|
| 196 | "gethostname() used without including <unistd.h>");
|
|---|
| 197 | # endif
|
|---|
| 198 | # endif
|
|---|
| 199 | # if !defined _@GUARD_PREFIX@_SYS_SOCKET_H
|
|---|
| 200 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 201 | # undef socket
|
|---|
| 202 | # define socket socket_used_without_including_sys_socket_h
|
|---|
| 203 | # undef connect
|
|---|
| 204 | # define connect connect_used_without_including_sys_socket_h
|
|---|
| 205 | # undef accept
|
|---|
| 206 | # define accept accept_used_without_including_sys_socket_h
|
|---|
| 207 | # undef bind
|
|---|
| 208 | # define bind bind_used_without_including_sys_socket_h
|
|---|
| 209 | # undef getpeername
|
|---|
| 210 | # define getpeername getpeername_used_without_including_sys_socket_h
|
|---|
| 211 | # undef getsockname
|
|---|
| 212 | # define getsockname getsockname_used_without_including_sys_socket_h
|
|---|
| 213 | # undef getsockopt
|
|---|
| 214 | # define getsockopt getsockopt_used_without_including_sys_socket_h
|
|---|
| 215 | # undef listen
|
|---|
| 216 | # define listen listen_used_without_including_sys_socket_h
|
|---|
| 217 | # undef recv
|
|---|
| 218 | # define recv recv_used_without_including_sys_socket_h
|
|---|
| 219 | # undef send
|
|---|
| 220 | # define send send_used_without_including_sys_socket_h
|
|---|
| 221 | # undef recvfrom
|
|---|
| 222 | # define recvfrom recvfrom_used_without_including_sys_socket_h
|
|---|
| 223 | # undef sendto
|
|---|
| 224 | # define sendto sendto_used_without_including_sys_socket_h
|
|---|
| 225 | # undef setsockopt
|
|---|
| 226 | # define setsockopt setsockopt_used_without_including_sys_socket_h
|
|---|
| 227 | # undef shutdown
|
|---|
| 228 | # define shutdown shutdown_used_without_including_sys_socket_h
|
|---|
| 229 | # elif !defined __clang__
|
|---|
| 230 | _GL_WARN_ON_USE (socket,
|
|---|
| 231 | "socket() used without including <sys/socket.h>");
|
|---|
| 232 | _GL_WARN_ON_USE (connect,
|
|---|
| 233 | "connect() used without including <sys/socket.h>");
|
|---|
| 234 | _GL_WARN_ON_USE (accept,
|
|---|
| 235 | "accept() used without including <sys/socket.h>");
|
|---|
| 236 | _GL_WARN_ON_USE (bind,
|
|---|
| 237 | "bind() used without including <sys/socket.h>");
|
|---|
| 238 | _GL_WARN_ON_USE (getpeername,
|
|---|
| 239 | "getpeername() used without including <sys/socket.h>");
|
|---|
| 240 | _GL_WARN_ON_USE (getsockname,
|
|---|
| 241 | "getsockname() used without including <sys/socket.h>");
|
|---|
| 242 | _GL_WARN_ON_USE (getsockopt,
|
|---|
| 243 | "getsockopt() used without including <sys/socket.h>");
|
|---|
| 244 | _GL_WARN_ON_USE (listen,
|
|---|
| 245 | "listen() used without including <sys/socket.h>");
|
|---|
| 246 | _GL_WARN_ON_USE (recv,
|
|---|
| 247 | "recv() used without including <sys/socket.h>");
|
|---|
| 248 | _GL_WARN_ON_USE (send,
|
|---|
| 249 | "send() used without including <sys/socket.h>");
|
|---|
| 250 | _GL_WARN_ON_USE (recvfrom,
|
|---|
| 251 | "recvfrom() used without including <sys/socket.h>");
|
|---|
| 252 | _GL_WARN_ON_USE (sendto,
|
|---|
| 253 | "sendto() used without including <sys/socket.h>");
|
|---|
| 254 | _GL_WARN_ON_USE (setsockopt,
|
|---|
| 255 | "setsockopt() used without including <sys/socket.h>");
|
|---|
| 256 | _GL_WARN_ON_USE (shutdown,
|
|---|
| 257 | "shutdown() used without including <sys/socket.h>");
|
|---|
| 258 | # endif
|
|---|
| 259 | # endif
|
|---|
| 260 | #endif
|
|---|
| 261 |
|
|---|
| 262 |
|
|---|
| 263 | #if @GNULIB_PSELECT@
|
|---|
| 264 | # if @REPLACE_PSELECT@
|
|---|
| 265 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 266 | # undef pselect
|
|---|
| 267 | # define pselect rpl_pselect
|
|---|
| 268 | # endif
|
|---|
| 269 | _GL_FUNCDECL_RPL (pselect, int,
|
|---|
| 270 | (int, fd_set *restrict, fd_set *restrict, fd_set *restrict,
|
|---|
| 271 | struct timespec const *restrict, const sigset_t *restrict));
|
|---|
| 272 | _GL_CXXALIAS_RPL (pselect, int,
|
|---|
| 273 | (int, fd_set *restrict, fd_set *restrict, fd_set *restrict,
|
|---|
| 274 | struct timespec const *restrict, const sigset_t *restrict));
|
|---|
| 275 | # else
|
|---|
| 276 | # if !@HAVE_PSELECT@
|
|---|
| 277 | _GL_FUNCDECL_SYS (pselect, int,
|
|---|
| 278 | (int, fd_set *restrict, fd_set *restrict, fd_set *restrict,
|
|---|
| 279 | struct timespec const *restrict, const sigset_t *restrict));
|
|---|
| 280 | # endif
|
|---|
| 281 | _GL_CXXALIAS_SYS (pselect, int,
|
|---|
| 282 | (int, fd_set *restrict, fd_set *restrict, fd_set *restrict,
|
|---|
| 283 | struct timespec const *restrict, const sigset_t *restrict));
|
|---|
| 284 | # endif
|
|---|
| 285 | _GL_CXXALIASWARN (pselect);
|
|---|
| 286 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 287 | # undef pselect
|
|---|
| 288 | # if HAVE_RAW_DECL_PSELECT
|
|---|
| 289 | _GL_WARN_ON_USE (pselect, "pselect is not portable - "
|
|---|
| 290 | "use gnulib module pselect for portability");
|
|---|
| 291 | # endif
|
|---|
| 292 | #endif
|
|---|
| 293 |
|
|---|
| 294 | #if @GNULIB_SELECT@
|
|---|
| 295 | # if @REPLACE_SELECT@
|
|---|
| 296 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 297 | # undef select
|
|---|
| 298 | # define select rpl_select
|
|---|
| 299 | # endif
|
|---|
| 300 | _GL_FUNCDECL_RPL (select, int,
|
|---|
| 301 | (int, fd_set *restrict, fd_set *restrict, fd_set *restrict,
|
|---|
| 302 | struct timeval *restrict));
|
|---|
| 303 | _GL_CXXALIAS_RPL (select, int,
|
|---|
| 304 | (int, fd_set *restrict, fd_set *restrict, fd_set *restrict,
|
|---|
| 305 | timeval *restrict));
|
|---|
| 306 | # else
|
|---|
| 307 | _GL_CXXALIAS_SYS (select, int,
|
|---|
| 308 | (int, fd_set *restrict, fd_set *restrict, fd_set *restrict,
|
|---|
| 309 | timeval *restrict));
|
|---|
| 310 | # endif
|
|---|
| 311 | _GL_CXXALIASWARN (select);
|
|---|
| 312 | #elif @HAVE_WINSOCK2_H@
|
|---|
| 313 | # undef select
|
|---|
| 314 | # define select select_used_without_requesting_gnulib_module_select
|
|---|
| 315 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 316 | # undef select
|
|---|
| 317 | # if HAVE_RAW_DECL_SELECT
|
|---|
| 318 | _GL_WARN_ON_USE (select, "select is not always POSIX compliant - "
|
|---|
| 319 | "use gnulib module select for portability");
|
|---|
| 320 | # endif
|
|---|
| 321 | #endif
|
|---|
| 322 |
|
|---|
| 323 |
|
|---|
| 324 | #endif /* _@GUARD_PREFIX@_SYS_SELECT_H */
|
|---|
| 325 | #endif /* _@GUARD_PREFIX@_SYS_SELECT_H */
|
|---|
| 326 | #endif /* OSF/1 */
|
|---|