| 1 | /* Substitute for and wrapper around <unistd.h>. |
| 2 | Copyright (C) 2003-2020 Free Software Foundation, Inc. |
| 3 | |
| 4 | This program is free software; you can redistribute it and/or modify |
| 5 | it under the terms of the GNU General Public License as published by |
| 6 | the Free Software Foundation; either version 3, or (at your option) |
| 7 | any later version. |
| 8 | |
| 9 | This program 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 General Public License for more details. |
| 13 | |
| 14 | You should have received a copy of the GNU General Public License |
| 15 | along with this program; if not, see <https://www.gnu.org/licenses/>. */ |
| 16 | |
| 17 | #ifndef _@GUARD_PREFIX@_UNISTD_H |
| 18 | |
| 19 | #if __GNUC__ >= 3 |
| 20 | @PRAGMA_SYSTEM_HEADER@ |
| 21 | #endif |
| 22 | @PRAGMA_COLUMNS@ |
| 23 | |
| 24 | #if @HAVE_UNISTD_H@ && defined _GL_INCLUDING_UNISTD_H |
| 25 | /* Special invocation convention: |
| 26 | - On Mac OS X 10.3.9 we have a sequence of nested includes |
| 27 | <unistd.h> -> <signal.h> -> <pthread.h> -> <unistd.h> |
| 28 | In this situation, the functions are not yet declared, therefore we cannot |
| 29 | provide the C++ aliases. */ |
| 30 | |
| 31 | #@INCLUDE_NEXT@ @NEXT_UNISTD_H@ |
| 32 | |
| 33 | #else |
| 34 | /* Normal invocation convention. */ |
| 35 | |
| 36 | /* The include_next requires a split double-inclusion guard. */ |
| 37 | #if @HAVE_UNISTD_H@ |
| 38 | # define _GL_INCLUDING_UNISTD_H |
| 39 | # @INCLUDE_NEXT@ @NEXT_UNISTD_H@ |
| 40 | # undef _GL_INCLUDING_UNISTD_H |
| 41 | #endif |
| 42 | |
| 43 | /* Get all possible declarations of gethostname(). */ |
| 44 | #if @GNULIB_GETHOSTNAME@ && @UNISTD_H_HAVE_WINSOCK2_H@ \ |
| 45 | && !defined _GL_INCLUDING_WINSOCK2_H |
| 46 | # define _GL_INCLUDING_WINSOCK2_H |
| 47 | # include <winsock2.h> |
| 48 | # undef _GL_INCLUDING_WINSOCK2_H |
| 49 | #endif |
| 50 | |
| 51 | #if !defined _@GUARD_PREFIX@_UNISTD_H && !defined _GL_INCLUDING_WINSOCK2_H |
| 52 | #define _@GUARD_PREFIX@_UNISTD_H |
| 53 | |
| 54 | /* NetBSD 5.0 mis-defines NULL. Also get size_t. */ |
| 55 | /* But avoid namespace pollution on glibc systems. */ |
| 56 | #ifndef __GLIBC__ |
| 57 | # include <stddef.h> |
| 58 | #endif |
| 59 | |
| 60 | /* mingw doesn't define the SEEK_* or *_FILENO macros in <unistd.h>. */ |
| 61 | /* MSVC declares 'unlink' in <stdio.h>, not in <unistd.h>. We must include |
| 62 | it before we #define unlink rpl_unlink. */ |
| 63 | /* Cygwin 1.7.1 declares symlinkat in <stdio.h>, not in <unistd.h>. */ |
| 64 | /* But avoid namespace pollution on glibc systems. */ |
| 65 | #if (!(defined SEEK_CUR && defined SEEK_END && defined SEEK_SET) \ |
| 66 | || ((@GNULIB_UNLINK@ || defined GNULIB_POSIXCHECK) \ |
| 67 | && (defined _WIN32 && ! defined __CYGWIN__)) \ |
| 68 | || ((@GNULIB_SYMLINKAT@ || defined GNULIB_POSIXCHECK) \ |
| 69 | && defined __CYGWIN__)) \ |
| 70 | && ! defined __GLIBC__ |
| 71 | # include <stdio.h> |
| 72 | #endif |
| 73 | |
| 74 | /* Cygwin 1.7.1 and Android 4.3 declare unlinkat in <fcntl.h>, not in |
| 75 | <unistd.h>. */ |
| 76 | /* But avoid namespace pollution on glibc systems. */ |
| 77 | #if (@GNULIB_UNLINKAT@ || defined GNULIB_POSIXCHECK) \ |
| 78 | && (defined __CYGWIN__ || defined __ANDROID__) \ |
| 79 | && ! defined __GLIBC__ |
| 80 | # include <fcntl.h> |
| 81 | #endif |
| 82 | |
| 83 | /* mingw fails to declare _exit in <unistd.h>. */ |
| 84 | /* mingw, MSVC, BeOS, Haiku declare environ in <stdlib.h>, not in |
| 85 | <unistd.h>. */ |
| 86 | /* Solaris declares getcwd not only in <unistd.h> but also in <stdlib.h>. */ |
| 87 | /* OSF Tru64 Unix cannot see gnulib rpl_strtod when system <stdlib.h> is |
| 88 | included here. */ |
| 89 | /* But avoid namespace pollution on glibc systems. */ |
| 90 | #if !defined __GLIBC__ && !defined __osf__ |
| 91 | # define __need_system_stdlib_h |
| 92 | # include <stdlib.h> |
| 93 | # undef __need_system_stdlib_h |
| 94 | #endif |
| 95 | |
| 96 | /* Native Windows platforms declare chdir, getcwd, rmdir in |
| 97 | <io.h> and/or <direct.h>, not in <unistd.h>. |
| 98 | They also declare access(), chmod(), close(), dup(), dup2(), isatty(), |
| 99 | lseek(), read(), unlink(), write() in <io.h>. */ |
| 100 | #if ((@GNULIB_CHDIR@ || @GNULIB_GETCWD@ || @GNULIB_RMDIR@ \ |
| 101 | || defined GNULIB_POSIXCHECK) \ |
| 102 | && (defined _WIN32 && ! defined __CYGWIN__)) |
| 103 | # include <io.h> /* mingw32, mingw64 */ |
| 104 | # include <direct.h> /* mingw64, MSVC 9 */ |
| 105 | #elif (@GNULIB_CLOSE@ || @GNULIB_DUP@ || @GNULIB_DUP2@ || @GNULIB_ISATTY@ \ |
| 106 | || @GNULIB_LSEEK@ || @GNULIB_READ@ || @GNULIB_UNLINK@ || @GNULIB_WRITE@ \ |
| 107 | || defined GNULIB_POSIXCHECK) \ |
| 108 | && (defined _WIN32 && ! defined __CYGWIN__) |
| 109 | # include <io.h> |
| 110 | #endif |
| 111 | |
| 112 | /* AIX and OSF/1 5.1 declare getdomainname in <netdb.h>, not in <unistd.h>. |
| 113 | NonStop Kernel declares gethostname in <netdb.h>, not in <unistd.h>. */ |
| 114 | /* But avoid namespace pollution on glibc systems. */ |
| 115 | #if ((@GNULIB_GETDOMAINNAME@ && (defined _AIX || defined __osf__)) \ |
| 116 | || (@GNULIB_GETHOSTNAME@ && defined __TANDEM)) \ |
| 117 | && !defined __GLIBC__ |
| 118 | # include <netdb.h> |
| 119 | #endif |
| 120 | |
| 121 | /* Android 4.3 declares fchownat in <sys/stat.h>, not in <unistd.h>. */ |
| 122 | /* But avoid namespace pollution on glibc systems. */ |
| 123 | #if (@GNULIB_FCHOWNAT@ || defined GNULIB_POSIXCHECK) && defined __ANDROID__ \ |
| 124 | && !defined __GLIBC__ |
| 125 | # include <sys/stat.h> |
| 126 | #endif |
| 127 | |
| 128 | /* MSVC defines off_t in <sys/types.h>. |
| 129 | May also define off_t to a 64-bit type on native Windows. */ |
| 130 | /* But avoid namespace pollution on glibc systems. */ |
| 131 | #ifndef __GLIBC__ |
| 132 | /* Get off_t, ssize_t. */ |
| 133 | # include <sys/types.h> |
| 134 | #endif |
| 135 | |
| 136 | /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */ |
| 137 | |
| 138 | /* The definition of _GL_ARG_NONNULL is copied here. */ |
| 139 | |
| 140 | /* The definition of _GL_WARN_ON_USE is copied here. */ |
| 141 | |
| 142 | |
| 143 | /* Get getopt(), optarg, optind, opterr, optopt. */ |
| 144 | #if @GNULIB_GETOPT_POSIX@ && @GNULIB_UNISTD_H_GETOPT@ && !defined _GL_SYSTEM_GETOPT |
| 145 | # include <getopt-cdefs.h> |
| 146 | # include <getopt-pfx-core.h> |
| 147 | #endif |
| 148 | |
| 149 | #ifndef _GL_INLINE_HEADER_BEGIN |
| 150 | #error "Please include config.h first." |
| 151 | #endif |
| 152 | _GL_INLINE_HEADER_BEGIN |
| 153 | #ifndef _GL_UNISTD_INLINE |
| 154 | # define _GL_UNISTD_INLINE _GL_INLINE |
| 155 | #endif |
| 156 | |
| 157 | /* Hide some function declarations from <winsock2.h>. */ |
| 158 | |
| 159 | #if @GNULIB_GETHOSTNAME@ && @UNISTD_H_HAVE_WINSOCK2_H@ |
| 160 | # if !defined _@GUARD_PREFIX@_SYS_SOCKET_H |
| 161 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| 162 | # undef socket |
| 163 | # define socket socket_used_without_including_sys_socket_h |
| 164 | # undef connect |
| 165 | # define connect connect_used_without_including_sys_socket_h |
| 166 | # undef accept |
| 167 | # define accept accept_used_without_including_sys_socket_h |
| 168 | # undef bind |
| 169 | # define bind bind_used_without_including_sys_socket_h |
| 170 | # undef getpeername |
| 171 | # define getpeername getpeername_used_without_including_sys_socket_h |
| 172 | # undef getsockname |
| 173 | # define getsockname getsockname_used_without_including_sys_socket_h |
| 174 | # undef getsockopt |
| 175 | # define getsockopt getsockopt_used_without_including_sys_socket_h |
| 176 | # undef listen |
| 177 | # define listen listen_used_without_including_sys_socket_h |
| 178 | # undef recv |
| 179 | # define recv recv_used_without_including_sys_socket_h |
| 180 | # undef send |
| 181 | # define send send_used_without_including_sys_socket_h |
| 182 | # undef recvfrom |
| 183 | # define recvfrom recvfrom_used_without_including_sys_socket_h |
| 184 | # undef sendto |
| 185 | # define sendto sendto_used_without_including_sys_socket_h |
| 186 | # undef setsockopt |
| 187 | # define setsockopt setsockopt_used_without_including_sys_socket_h |
| 188 | # undef shutdown |
| 189 | # define shutdown shutdown_used_without_including_sys_socket_h |
| 190 | # else |
| 191 | _GL_WARN_ON_USE (socket, |
| 192 | "socket() used without including <sys/socket.h>"); |
| 193 | _GL_WARN_ON_USE (connect, |
| 194 | "connect() used without including <sys/socket.h>"); |
| 195 | _GL_WARN_ON_USE (accept, |
| 196 | "accept() used without including <sys/socket.h>"); |
| 197 | _GL_WARN_ON_USE (bind, |
| 198 | "bind() used without including <sys/socket.h>"); |
| 199 | _GL_WARN_ON_USE (getpeername, |
| 200 | "getpeername() used without including <sys/socket.h>"); |
| 201 | _GL_WARN_ON_USE (getsockname, |
| 202 | "getsockname() used without including <sys/socket.h>"); |
| 203 | _GL_WARN_ON_USE (getsockopt, |
| 204 | "getsockopt() used without including <sys/socket.h>"); |
| 205 | _GL_WARN_ON_USE (listen, |
| 206 | "listen() used without including <sys/socket.h>"); |
| 207 | _GL_WARN_ON_USE (recv, |
| 208 | "recv() used without including <sys/socket.h>"); |
| 209 | _GL_WARN_ON_USE (send, |
| 210 | "send() used without including <sys/socket.h>"); |
| 211 | _GL_WARN_ON_USE (recvfrom, |
| 212 | "recvfrom() used without including <sys/socket.h>"); |
| 213 | _GL_WARN_ON_USE (sendto, |
| 214 | "sendto() used without including <sys/socket.h>"); |
| 215 | _GL_WARN_ON_USE (setsockopt, |
| 216 | "setsockopt() used without including <sys/socket.h>"); |
| 217 | _GL_WARN_ON_USE (shutdown, |
| 218 | "shutdown() used without including <sys/socket.h>"); |
| 219 | # endif |
| 220 | # endif |
| 221 | # if !defined _@GUARD_PREFIX@_SYS_SELECT_H |
| 222 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| 223 | # undef select |
| 224 | # define select select_used_without_including_sys_select_h |
| 225 | # else |
| 226 | _GL_WARN_ON_USE (select, |
| 227 | "select() used without including <sys/select.h>"); |
| 228 | # endif |
| 229 | # endif |
| 230 | #endif |
| 231 | |
| 232 | |
| 233 | /* OS/2 EMX lacks these macros. */ |
| 234 | #ifndef STDIN_FILENO |
| 235 | # define STDIN_FILENO 0 |
| 236 | #endif |
| 237 | #ifndef STDOUT_FILENO |
| 238 | # define STDOUT_FILENO 1 |
| 239 | #endif |
| 240 | #ifndef STDERR_FILENO |
| 241 | # define STDERR_FILENO 2 |
| 242 | #endif |
| 243 | |
| 244 | /* Ensure *_OK macros exist. */ |
| 245 | #ifndef F_OK |
| 246 | # define F_OK 0 |
| 247 | # define X_OK 1 |
| 248 | # define W_OK 2 |
| 249 | # define R_OK 4 |
| 250 | #endif |
| 251 | |
| 252 | |
| 253 | /* Declare overridden functions. */ |
| 254 | |
| 255 | |
| 256 | #if @GNULIB_ACCESS@ |
| 257 | # if @REPLACE_ACCESS@ |
| 258 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| 259 | # undef access |
| 260 | # define access rpl_access |
| 261 | # endif |
| 262 | _GL_FUNCDECL_RPL (access, int, (const char *file, int mode) |
| 263 | _GL_ARG_NONNULL ((1))); |
| 264 | _GL_CXXALIAS_RPL (access, int, (const char *file, int mode)); |
| 265 | # else |
| 266 | _GL_CXXALIAS_SYS (access, int, (const char *file, int mode)); |
| 267 | # endif |
| 268 | _GL_CXXALIASWARN (access); |
| 269 | #elif defined GNULIB_POSIXCHECK |
| 270 | # undef access |
| 271 | # if HAVE_RAW_DECL_ACCESS |
| 272 | /* The access() function is a security risk. */ |
| 273 | _GL_WARN_ON_USE (access, "access does not always support X_OK - " |
| 274 | "use gnulib module access for portability; " |
| 275 | "also, this function is a security risk - " |
| 276 | "use the gnulib module faccessat instead"); |
| 277 | # endif |
| 278 | #endif |
| 279 | |
| 280 | |
| 281 | #if @GNULIB_CHDIR@ |
| 282 | _GL_CXXALIAS_SYS (chdir, int, (const char *file) _GL_ARG_NONNULL ((1))); |
| 283 | _GL_CXXALIASWARN (chdir); |
| 284 | #elif defined GNULIB_POSIXCHECK |
| 285 | # undef chdir |
| 286 | # if HAVE_RAW_DECL_CHDIR |
| 287 | _GL_WARN_ON_USE (chown, "chdir is not always in <unistd.h> - " |
| 288 | "use gnulib module chdir for portability"); |
| 289 | # endif |
| 290 | #endif |
| 291 | |
| 292 | |
| 293 | #if @GNULIB_CHOWN@ |
| 294 | /* Change the owner of FILE to UID (if UID is not -1) and the group of FILE |
| 295 | to GID (if GID is not -1). Follow symbolic links. |
| 296 | Return 0 if successful, otherwise -1 and errno set. |
| 297 | See the POSIX:2008 specification |
| 298 | <https://pubs.opengroup.org/onlinepubs/9699919799/functions/chown.html. */ |
| 299 | # if @REPLACE_CHOWN@ |
| 300 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| 301 | # undef chown |
| 302 | # define chown rpl_chown |
| 303 | # endif |
| 304 | _GL_FUNCDECL_RPL (chown, int, (const char *file, uid_t uid, gid_t gid) |
| 305 | _GL_ARG_NONNULL ((1))); |
| 306 | _GL_CXXALIAS_RPL (chown, int, (const char *file, uid_t uid, gid_t gid)); |
| 307 | # else |
| 308 | # if !@HAVE_CHOWN@ |
| 309 | _GL_FUNCDECL_SYS (chown, int, (const char *file, uid_t uid, gid_t gid) |
| 310 | _GL_ARG_NONNULL ((1))); |
| 311 | # endif |
| 312 | _GL_CXXALIAS_SYS (chown, int, (const char *file, uid_t uid, gid_t gid)); |
| 313 | # endif |
| 314 | _GL_CXXALIASWARN (chown); |
| 315 | #elif defined GNULIB_POSIXCHECK |
| 316 | # undef chown |
| 317 | # if HAVE_RAW_DECL_CHOWN |
| 318 | _GL_WARN_ON_USE (chown, "chown fails to follow symlinks on some systems and " |
| 319 | "doesn't treat a uid or gid of -1 on some systems - " |
| 320 | "use gnulib module chown for portability"); |
| 321 | # endif |
| 322 | #endif |
| 323 | |
| 324 | |
| 325 | #if @GNULIB_CLOSE@ |
| 326 | # if @REPLACE_CLOSE@ |
| 327 | /* Automatically included by modules that need a replacement for close. */ |
| 328 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| 329 | # undef close |
| 330 | # define close rpl_close |
| 331 | # endif |
| 332 | _GL_FUNCDECL_RPL (close, int, (int fd)); |
| 333 | _GL_CXXALIAS_RPL (close, int, (int fd)); |
| 334 | # else |
| 335 | _GL_CXXALIAS_SYS (close, int, (int fd)); |
| 336 | # endif |
| 337 | _GL_CXXALIASWARN (close); |
| 338 | #elif @UNISTD_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS@ |
| 339 | # undef close |
| 340 | # define close close_used_without_requesting_gnulib_module_close |
| 341 | #elif defined GNULIB_POSIXCHECK |
| 342 | # undef close |
| 343 | /* Assume close is always declared. */ |
| 344 | _GL_WARN_ON_USE (close, "close does not portably work on sockets - " |
| 345 | "use gnulib module close for portability"); |
| 346 | #endif |
| 347 | |
| 348 | |
| 349 | #if @GNULIB_COPY_FILE_RANGE@ |
| 350 | # if !@HAVE_COPY_FILE_RANGE@ |
| 351 | _GL_FUNCDECL_SYS (copy_file_range, ssize_t, (int ifd, off_t *ipos, |
| 352 | int ofd, off_t *opos, |
| 353 | size_t len, unsigned flags)); |
| 354 | _GL_CXXALIAS_SYS (copy_file_range, ssize_t, (int ifd, off_t *ipos, |
| 355 | int ofd, off_t *opos, |
| 356 | size_t len, unsigned flags)); |
| 357 | # endif |
| 358 | _GL_CXXALIASWARN (copy_file_range); |
| 359 | #elif defined GNULIB_POSIXCHECK |
| 360 | /* Assume copy_file_range is always declared. */ |
| 361 | _GL_WARN_ON_USE (copy_file_range, |
| 362 | "copy_file_range is unportable - " |
| 363 | "use gnulib module copy_file_range for portability"); |
| 364 | #endif |
| 365 | |
| 366 | |
| 367 | #if @GNULIB_DUP@ |
| 368 | # if @REPLACE_DUP@ |
| 369 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| 370 | # define dup rpl_dup |
| 371 | # endif |
| 372 | _GL_FUNCDECL_RPL (dup, int, (int oldfd)); |
| 373 | _GL_CXXALIAS_RPL (dup, int, (int oldfd)); |
| 374 | # else |
| 375 | _GL_CXXALIAS_SYS (dup, int, (int oldfd)); |
| 376 | # endif |
| 377 | _GL_CXXALIASWARN (dup); |
| 378 | #elif defined GNULIB_POSIXCHECK |
| 379 | # undef dup |
| 380 | # if HAVE_RAW_DECL_DUP |
| 381 | _GL_WARN_ON_USE (dup, "dup is unportable - " |
| 382 | "use gnulib module dup for portability"); |
| 383 | # endif |
| 384 | #endif |
| 385 | |
| 386 | |
| 387 | #if @GNULIB_DUP2@ |
| 388 | /* Copy the file descriptor OLDFD into file descriptor NEWFD. Do nothing if |
| 389 | NEWFD = OLDFD, otherwise close NEWFD first if it is open. |
| 390 | Return newfd if successful, otherwise -1 and errno set. |
| 391 | See the POSIX:2008 specification |
| 392 | <https://pubs.opengroup.org/onlinepubs/9699919799/functions/dup2.html>. */ |
| 393 | # if @REPLACE_DUP2@ |
| 394 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| 395 | # define dup2 rpl_dup2 |
| 396 | # endif |
| 397 | _GL_FUNCDECL_RPL (dup2, int, (int oldfd, int newfd)); |
| 398 | _GL_CXXALIAS_RPL (dup2, int, (int oldfd, int newfd)); |
| 399 | # else |
| 400 | # if !@HAVE_DUP2@ |
| 401 | _GL_FUNCDECL_SYS (dup2, int, (int oldfd, int newfd)); |
| 402 | # endif |
| 403 | _GL_CXXALIAS_SYS (dup2, int, (int oldfd, int newfd)); |
| 404 | # endif |
| 405 | _GL_CXXALIASWARN (dup2); |
| 406 | #elif defined GNULIB_POSIXCHECK |
| 407 | # undef dup2 |
| 408 | # if HAVE_RAW_DECL_DUP2 |
| 409 | _GL_WARN_ON_USE (dup2, "dup2 is unportable - " |
| 410 | "use gnulib module dup2 for portability"); |
| 411 | # endif |
| 412 | #endif |
| 413 | |
| 414 | |
| 415 | #if @GNULIB_DUP3@ |
| 416 | /* Copy the file descriptor OLDFD into file descriptor NEWFD, with the |
| 417 | specified flags. |
| 418 | The flags are a bitmask, possibly including O_CLOEXEC (defined in <fcntl.h>) |
| 419 | and O_TEXT, O_BINARY (defined in "binary-io.h"). |
| 420 | Close NEWFD first if it is open. |
| 421 | Return newfd if successful, otherwise -1 and errno set. |
| 422 | See the Linux man page at |
| 423 | <https://www.kernel.org/doc/man-pages/online/pages/man2/dup3.2.html>. */ |
| 424 | # if @HAVE_DUP3@ |
| 425 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| 426 | # define dup3 rpl_dup3 |
| 427 | # endif |
| 428 | _GL_FUNCDECL_RPL (dup3, int, (int oldfd, int newfd, int flags)); |
| 429 | _GL_CXXALIAS_RPL (dup3, int, (int oldfd, int newfd, int flags)); |
| 430 | # else |
| 431 | _GL_FUNCDECL_SYS (dup3, int, (int oldfd, int newfd, int flags)); |
| 432 | _GL_CXXALIAS_SYS (dup3, int, (int oldfd, int newfd, int flags)); |
| 433 | # endif |
| 434 | _GL_CXXALIASWARN (dup3); |
| 435 | #elif defined GNULIB_POSIXCHECK |
| 436 | # undef dup3 |
| 437 | # if HAVE_RAW_DECL_DUP3 |
| 438 | _GL_WARN_ON_USE (dup3, "dup3 is unportable - " |
| 439 | "use gnulib module dup3 for portability"); |
| 440 | # endif |
| 441 | #endif |
| 442 | |
| 443 | |
| 444 | #if @GNULIB_ENVIRON@ |
| 445 | # if defined __CYGWIN__ && !defined __i386__ |
| 446 | /* The 'environ' variable is defined in a DLL. Therefore its declaration needs |
| 447 | the '__declspec(dllimport)' attribute, but the system's <unistd.h> lacks it. |
| 448 | This leads to a link error on 64-bit Cygwin when the option |
| 449 | -Wl,--disable-auto-import is in use. */ |
| 450 | _GL_EXTERN_C __declspec(dllimport) char **environ; |
| 451 | # endif |
| 452 | # if !@HAVE_DECL_ENVIRON@ |
| 453 | /* Set of environment variables and values. An array of strings of the form |
| 454 | "VARIABLE=VALUE", terminated with a NULL. */ |
| 455 | # if defined __APPLE__ && defined __MACH__ |
| 456 | # include <TargetConditionals.h> |
| 457 | # if !TARGET_OS_IPHONE && !TARGET_IPHONE_SIMULATOR |
| 458 | # define _GL_USE_CRT_EXTERNS |
| 459 | # endif |
| 460 | # endif |
| 461 | # ifdef _GL_USE_CRT_EXTERNS |
| 462 | # include <crt_externs.h> |
| 463 | # define environ (*_NSGetEnviron ()) |
| 464 | # else |
| 465 | # ifdef __cplusplus |
| 466 | extern "C" { |
| 467 | # endif |
| 468 | extern char **environ; |
| 469 | # ifdef __cplusplus |
| 470 | } |
| 471 | # endif |
| 472 | # endif |
| 473 | # endif |
| 474 | #elif defined GNULIB_POSIXCHECK |
| 475 | # if HAVE_RAW_DECL_ENVIRON |
| 476 | _GL_UNISTD_INLINE char *** |
| 477 | _GL_WARN_ON_USE_ATTRIBUTE ("environ is unportable - " |
| 478 | "use gnulib module environ for portability") |
| 479 | rpl_environ (void) |
| 480 | { |
| 481 | return &environ; |
| 482 | } |
| 483 | # undef environ |
| 484 | # define environ (*rpl_environ ()) |
| 485 | # endif |
| 486 | #endif |
| 487 | |
| 488 | |
| 489 | #if @GNULIB_EUIDACCESS@ |
| 490 | /* Like access(), except that it uses the effective user id and group id of |
| 491 | the current process. */ |
| 492 | # if !@HAVE_EUIDACCESS@ |
| 493 | _GL_FUNCDECL_SYS (euidaccess, int, (const char *filename, int mode) |
| 494 | _GL_ARG_NONNULL ((1))); |
| 495 | # endif |
| 496 | _GL_CXXALIAS_SYS (euidaccess, int, (const char *filename, int mode)); |
| 497 | _GL_CXXALIASWARN (euidaccess); |
| 498 | # if defined GNULIB_POSIXCHECK |
| 499 | /* Like access(), this function is a security risk. */ |
| 500 | _GL_WARN_ON_USE (euidaccess, "the euidaccess function is a security risk - " |
| 501 | "use the gnulib module faccessat instead"); |
| 502 | # endif |
| 503 | #elif defined GNULIB_POSIXCHECK |
| 504 | # undef euidaccess |
| 505 | # if HAVE_RAW_DECL_EUIDACCESS |
| 506 | _GL_WARN_ON_USE (euidaccess, "euidaccess is unportable - " |
| 507 | "use gnulib module euidaccess for portability"); |
| 508 | # endif |
| 509 | #endif |
| 510 | |
| 511 | |
| 512 | #if @GNULIB_FACCESSAT@ |
| 513 | # if @REPLACE_FACCESSAT@ |
| 514 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| 515 | # undef faccessat |
| 516 | # define faccessat rpl_faccessat |
| 517 | # endif |
| 518 | _GL_FUNCDECL_RPL (faccessat, int, |
| 519 | (int fd, char const *name, int mode, int flag) |
| 520 | _GL_ARG_NONNULL ((2))); |
| 521 | _GL_CXXALIAS_RPL (faccessat, int, |
| 522 | (int fd, char const *name, int mode, int flag)); |
| 523 | # else |
| 524 | # if !@HAVE_FACCESSAT@ |
| 525 | _GL_FUNCDECL_SYS (faccessat, int, |
| 526 | (int fd, char const *file, int mode, int flag) |
| 527 | _GL_ARG_NONNULL ((2))); |
| 528 | # endif |
| 529 | _GL_CXXALIAS_SYS (faccessat, int, |
| 530 | (int fd, char const *file, int mode, int flag)); |
| 531 | # endif |
| 532 | _GL_CXXALIASWARN (faccessat); |
| 533 | #elif defined GNULIB_POSIXCHECK |
| 534 | # undef faccessat |
| 535 | # if HAVE_RAW_DECL_FACCESSAT |
| 536 | _GL_WARN_ON_USE (faccessat, "faccessat is not portable - " |
| 537 | "use gnulib module faccessat for portability"); |
| 538 | # endif |
| 539 | #endif |
| 540 | |
| 541 | |
| 542 | #if @GNULIB_FCHDIR@ |
| 543 | /* Change the process' current working directory to the directory on which |
| 544 | the given file descriptor is open. |
| 545 | Return 0 if successful, otherwise -1 and errno set. |
| 546 | See the POSIX:2008 specification |
| 547 | <https://pubs.opengroup.org/onlinepubs/9699919799/functions/fchdir.html>. */ |
| 548 | # if ! @HAVE_FCHDIR@ |
| 549 | _GL_FUNCDECL_SYS (fchdir, int, (int /*fd*/)); |
| 550 | |
| 551 | /* Gnulib internal hooks needed to maintain the fchdir metadata. */ |
| 552 | _GL_EXTERN_C int _gl_register_fd (int fd, const char *filename) |
| 553 | _GL_ARG_NONNULL ((2)); |
| 554 | _GL_EXTERN_C void _gl_unregister_fd (int fd); |
| 555 | _GL_EXTERN_C int _gl_register_dup (int oldfd, int newfd); |
| 556 | _GL_EXTERN_C const char *_gl_directory_name (int fd); |
| 557 | |
| 558 | # else |
| 559 | # if !@HAVE_DECL_FCHDIR@ |
| 560 | _GL_FUNCDECL_SYS (fchdir, int, (int /*fd*/)); |
| 561 | # endif |
| 562 | # endif |
| 563 | _GL_CXXALIAS_SYS (fchdir, int, (int /*fd*/)); |
| 564 | _GL_CXXALIASWARN (fchdir); |
| 565 | #elif defined GNULIB_POSIXCHECK |
| 566 | # undef fchdir |
| 567 | # if HAVE_RAW_DECL_FCHDIR |
| 568 | _GL_WARN_ON_USE (fchdir, "fchdir is unportable - " |
| 569 | "use gnulib module fchdir for portability"); |
| 570 | # endif |
| 571 | #endif |
| 572 | |
| 573 | |
| 574 | #if @GNULIB_FCHOWNAT@ |
| 575 | # if @REPLACE_FCHOWNAT@ |
| 576 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| 577 | # undef fchownat |
| 578 | # define fchownat rpl_fchownat |
| 579 | # endif |
| 580 | _GL_FUNCDECL_RPL (fchownat, int, (int fd, char const *file, |
| 581 | uid_t owner, gid_t group, int flag) |
| 582 | _GL_ARG_NONNULL ((2))); |
| 583 | _GL_CXXALIAS_RPL (fchownat, int, (int fd, char const *file, |
| 584 | uid_t owner, gid_t group, int flag)); |
| 585 | # else |
| 586 | # if !@HAVE_FCHOWNAT@ |
| 587 | _GL_FUNCDECL_SYS (fchownat, int, (int fd, char const *file, |
| 588 | uid_t owner, gid_t group, int flag) |
| 589 | _GL_ARG_NONNULL ((2))); |
| 590 | # endif |
| 591 | _GL_CXXALIAS_SYS (fchownat, int, (int fd, char const *file, |
| 592 | uid_t owner, gid_t group, int flag)); |
| 593 | # endif |
| 594 | _GL_CXXALIASWARN (fchownat); |
| 595 | #elif defined GNULIB_POSIXCHECK |
| 596 | # undef fchownat |
| 597 | # if HAVE_RAW_DECL_FCHOWNAT |
| 598 | _GL_WARN_ON_USE (fchownat, "fchownat is not portable - " |
| 599 | "use gnulib module openat for portability"); |
| 600 | # endif |
| 601 | #endif |
| 602 | |
| 603 | |
| 604 | #if @GNULIB_FDATASYNC@ |
| 605 | /* Synchronize changes to a file. |
| 606 | Return 0 if successful, otherwise -1 and errno set. |
| 607 | See POSIX:2008 specification |
| 608 | <https://pubs.opengroup.org/onlinepubs/9699919799/functions/fdatasync.html>. */ |
| 609 | # if !@HAVE_FDATASYNC@ || !@HAVE_DECL_FDATASYNC@ |
| 610 | _GL_FUNCDECL_SYS (fdatasync, int, (int fd)); |
| 611 | # endif |
| 612 | _GL_CXXALIAS_SYS (fdatasync, int, (int fd)); |
| 613 | _GL_CXXALIASWARN (fdatasync); |
| 614 | #elif defined GNULIB_POSIXCHECK |
| 615 | # undef fdatasync |
| 616 | # if HAVE_RAW_DECL_FDATASYNC |
| 617 | _GL_WARN_ON_USE (fdatasync, "fdatasync is unportable - " |
| 618 | "use gnulib module fdatasync for portability"); |
| 619 | # endif |
| 620 | #endif |
| 621 | |
| 622 | |
| 623 | #if @GNULIB_FSYNC@ |
| 624 | /* Synchronize changes, including metadata, to a file. |
| 625 | Return 0 if successful, otherwise -1 and errno set. |
| 626 | See POSIX:2008 specification |
| 627 | <https://pubs.opengroup.org/onlinepubs/9699919799/functions/fsync.html>. */ |
| 628 | # if !@HAVE_FSYNC@ |
| 629 | _GL_FUNCDECL_SYS (fsync, int, (int fd)); |
| 630 | # endif |
| 631 | _GL_CXXALIAS_SYS (fsync, int, (int fd)); |
| 632 | _GL_CXXALIASWARN (fsync); |
| 633 | #elif defined GNULIB_POSIXCHECK |
| 634 | # undef fsync |
| 635 | # if HAVE_RAW_DECL_FSYNC |
| 636 | _GL_WARN_ON_USE (fsync, "fsync is unportable - " |
| 637 | "use gnulib module fsync for portability"); |
| 638 | # endif |
| 639 | #endif |
| 640 | |
| 641 | |
| 642 | #if @GNULIB_FTRUNCATE@ |
| 643 | /* Change the size of the file to which FD is opened to become equal to LENGTH. |
| 644 | Return 0 if successful, otherwise -1 and errno set. |
| 645 | See the POSIX:2008 specification |
| 646 | <https://pubs.opengroup.org/onlinepubs/9699919799/functions/ftruncate.html>. */ |
| 647 | # if @REPLACE_FTRUNCATE@ |
| 648 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| 649 | # undef ftruncate |
| 650 | # define ftruncate rpl_ftruncate |
| 651 | # endif |
| 652 | _GL_FUNCDECL_RPL (ftruncate, int, (int fd, off_t length)); |
| 653 | _GL_CXXALIAS_RPL (ftruncate, int, (int fd, off_t length)); |
| 654 | # else |
| 655 | # if !@HAVE_FTRUNCATE@ |
| 656 | _GL_FUNCDECL_SYS (ftruncate, int, (int fd, off_t length)); |
| 657 | # endif |
| 658 | _GL_CXXALIAS_SYS (ftruncate, int, (int fd, off_t length)); |
| 659 | # endif |
| 660 | _GL_CXXALIASWARN (ftruncate); |
| 661 | #elif defined GNULIB_POSIXCHECK |
| 662 | # undef ftruncate |
| 663 | # if HAVE_RAW_DECL_FTRUNCATE |
| 664 | _GL_WARN_ON_USE (ftruncate, "ftruncate is unportable - " |
| 665 | "use gnulib module ftruncate for portability"); |
| 666 | # endif |
| 667 | #endif |
| 668 | |
| 669 | |
| 670 | #if @GNULIB_GETCWD@ |
| 671 | /* Get the name of the current working directory, and put it in SIZE bytes |
| 672 | of BUF. |
| 673 | Return BUF if successful, or NULL if the directory couldn't be determined |
| 674 | or SIZE was too small. |
| 675 | See the POSIX:2008 specification |
| 676 | <https://pubs.opengroup.org/onlinepubs/9699919799/functions/getcwd.html>. |
| 677 | Additionally, the gnulib module 'getcwd' guarantees the following GNU |
| 678 | extension: If BUF is NULL, an array is allocated with 'malloc'; the array |
| 679 | is SIZE bytes long, unless SIZE == 0, in which case it is as big as |
| 680 | necessary. */ |
| 681 | # if @REPLACE_GETCWD@ |
| 682 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| 683 | # define getcwd rpl_getcwd |
| 684 | # endif |
| 685 | _GL_FUNCDECL_RPL (getcwd, char *, (char *buf, size_t size)); |
| 686 | _GL_CXXALIAS_RPL (getcwd, char *, (char *buf, size_t size)); |
| 687 | # else |
| 688 | /* Need to cast, because on mingw, the second parameter is |
| 689 | int size. */ |
| 690 | _GL_CXXALIAS_SYS_CAST (getcwd, char *, (char *buf, size_t size)); |
| 691 | # endif |
| 692 | _GL_CXXALIASWARN (getcwd); |
| 693 | #elif defined GNULIB_POSIXCHECK |
| 694 | # undef getcwd |
| 695 | # if HAVE_RAW_DECL_GETCWD |
| 696 | _GL_WARN_ON_USE (getcwd, "getcwd is unportable - " |
| 697 | "use gnulib module getcwd for portability"); |
| 698 | # endif |
| 699 | #endif |
| 700 | |
| 701 | |
| 702 | #if @GNULIB_GETDOMAINNAME@ |
| 703 | /* Return the NIS domain name of the machine. |
| 704 | WARNING! The NIS domain name is unrelated to the fully qualified host name |
| 705 | of the machine. It is also unrelated to email addresses. |
| 706 | WARNING! The NIS domain name is usually the empty string or "(none)" when |
| 707 | not using NIS. |
| 708 | |
| 709 | Put up to LEN bytes of the NIS domain name into NAME. |
| 710 | Null terminate it if the name is shorter than LEN. |
| 711 | If the NIS domain name is longer than LEN, set errno = EINVAL and return -1. |
| 712 | Return 0 if successful, otherwise set errno and return -1. */ |
| 713 | # if @REPLACE_GETDOMAINNAME@ |
| 714 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| 715 | # undef getdomainname |
| 716 | # define getdomainname rpl_getdomainname |
| 717 | # endif |
| 718 | _GL_FUNCDECL_RPL (getdomainname, int, (char *name, size_t len) |
| 719 | _GL_ARG_NONNULL ((1))); |
| 720 | _GL_CXXALIAS_RPL (getdomainname, int, (char *name, size_t len)); |
| 721 | # else |
| 722 | # if !@HAVE_DECL_GETDOMAINNAME@ |
| 723 | _GL_FUNCDECL_SYS (getdomainname, int, (char *name, size_t len) |
| 724 | _GL_ARG_NONNULL ((1))); |
| 725 | # endif |
| 726 | _GL_CXXALIAS_SYS (getdomainname, int, (char *name, size_t len)); |
| 727 | # endif |
| 728 | _GL_CXXALIASWARN (getdomainname); |
| 729 | #elif defined GNULIB_POSIXCHECK |
| 730 | # undef getdomainname |
| 731 | # if HAVE_RAW_DECL_GETDOMAINNAME |
| 732 | _GL_WARN_ON_USE (getdomainname, "getdomainname is unportable - " |
| 733 | "use gnulib module getdomainname for portability"); |
| 734 | # endif |
| 735 | #endif |
| 736 | |
| 737 | |
| 738 | #if @GNULIB_GETDTABLESIZE@ |
| 739 | /* Return the maximum number of file descriptors in the current process. |
| 740 | In POSIX, this is same as sysconf (_SC_OPEN_MAX). */ |
| 741 | # if @REPLACE_GETDTABLESIZE@ |
| 742 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| 743 | # undef getdtablesize |
| 744 | # define getdtablesize rpl_getdtablesize |
| 745 | # endif |
| 746 | _GL_FUNCDECL_RPL (getdtablesize, int, (void)); |
| 747 | _GL_CXXALIAS_RPL (getdtablesize, int, (void)); |
| 748 | # else |
| 749 | # if !@HAVE_GETDTABLESIZE@ |
| 750 | _GL_FUNCDECL_SYS (getdtablesize, int, (void)); |
| 751 | # endif |
| 752 | /* Need to cast, because on AIX, the parameter list is |
| 753 | (...). */ |
| 754 | _GL_CXXALIAS_SYS_CAST (getdtablesize, int, (void)); |
| 755 | # endif |
| 756 | _GL_CXXALIASWARN (getdtablesize); |
| 757 | #elif defined GNULIB_POSIXCHECK |
| 758 | # undef getdtablesize |
| 759 | # if HAVE_RAW_DECL_GETDTABLESIZE |
| 760 | _GL_WARN_ON_USE (getdtablesize, "getdtablesize is unportable - " |
| 761 | "use gnulib module getdtablesize for portability"); |
| 762 | # endif |
| 763 | #endif |
| 764 | |
| 765 | |
| 766 | #if @GNULIB_GETGROUPS@ |
| 767 | /* Return the supplemental groups that the current process belongs to. |
| 768 | It is unspecified whether the effective group id is in the list. |
| 769 | If N is 0, return the group count; otherwise, N describes how many |
| 770 | entries are available in GROUPS. Return -1 and set errno if N is |
| 771 | not 0 and not large enough. Fails with ENOSYS on some systems. */ |
| 772 | # if @REPLACE_GETGROUPS@ |
| 773 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| 774 | # undef getgroups |
| 775 | # define getgroups rpl_getgroups |
| 776 | # endif |
| 777 | _GL_FUNCDECL_RPL (getgroups, int, (int n, gid_t *groups)); |
| 778 | _GL_CXXALIAS_RPL (getgroups, int, (int n, gid_t *groups)); |
| 779 | # else |
| 780 | # if !@HAVE_GETGROUPS@ |
| 781 | _GL_FUNCDECL_SYS (getgroups, int, (int n, gid_t *groups)); |
| 782 | # endif |
| 783 | _GL_CXXALIAS_SYS (getgroups, int, (int n, gid_t *groups)); |
| 784 | # endif |
| 785 | _GL_CXXALIASWARN (getgroups); |
| 786 | #elif defined GNULIB_POSIXCHECK |
| 787 | # undef getgroups |
| 788 | # if HAVE_RAW_DECL_GETGROUPS |
| 789 | _GL_WARN_ON_USE (getgroups, "getgroups is unportable - " |
| 790 | "use gnulib module getgroups for portability"); |
| 791 | # endif |
| 792 | #endif |
| 793 | |
| 794 | |
| 795 | #if @GNULIB_GETHOSTNAME@ |
| 796 | /* Return the standard host name of the machine. |
| 797 | WARNING! The host name may or may not be fully qualified. |
| 798 | |
| 799 | Put up to LEN bytes of the host name into NAME. |
| 800 | Null terminate it if the name is shorter than LEN. |
| 801 | If the host name is longer than LEN, set errno = EINVAL and return -1. |
| 802 | Return 0 if successful, otherwise set errno and return -1. */ |
| 803 | # if @UNISTD_H_HAVE_WINSOCK2_H@ |
| 804 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| 805 | # undef gethostname |
| 806 | # define gethostname rpl_gethostname |
| 807 | # endif |
| 808 | _GL_FUNCDECL_RPL (gethostname, int, (char *name, size_t len) |
| 809 | _GL_ARG_NONNULL ((1))); |
| 810 | _GL_CXXALIAS_RPL (gethostname, int, (char *name, size_t len)); |
| 811 | # else |
| 812 | # if !@HAVE_GETHOSTNAME@ |
| 813 | _GL_FUNCDECL_SYS (gethostname, int, (char *name, size_t len) |
| 814 | _GL_ARG_NONNULL ((1))); |
| 815 | # endif |
| 816 | /* Need to cast, because on Solaris 10 and OSF/1 5.1 systems, the second |
| 817 | parameter is |
| 818 | int len. */ |
| 819 | _GL_CXXALIAS_SYS_CAST (gethostname, int, (char *name, size_t len)); |
| 820 | # endif |
| 821 | _GL_CXXALIASWARN (gethostname); |
| 822 | #elif @UNISTD_H_HAVE_WINSOCK2_H@ |
| 823 | # undef gethostname |
| 824 | # define gethostname gethostname_used_without_requesting_gnulib_module_gethostname |
| 825 | #elif defined GNULIB_POSIXCHECK |
| 826 | # undef gethostname |
| 827 | # if HAVE_RAW_DECL_GETHOSTNAME |
| 828 | _GL_WARN_ON_USE (gethostname, "gethostname is unportable - " |
| 829 | "use gnulib module gethostname for portability"); |
| 830 | # endif |
| 831 | #endif |
| 832 | |
| 833 | |
| 834 | #if @GNULIB_GETLOGIN@ |
| 835 | /* Returns the user's login name, or NULL if it cannot be found. Upon error, |
| 836 | returns NULL with errno set. |
| 837 | |
| 838 | See <https://pubs.opengroup.org/onlinepubs/9699919799/functions/getlogin.html>. |
| 839 | |
| 840 | Most programs don't need to use this function, because the information is |
| 841 | available through environment variables: |
| 842 | ${LOGNAME-$USER} on Unix platforms, |
| 843 | $USERNAME on native Windows platforms. |
| 844 | */ |
| 845 | # if !@HAVE_DECL_GETLOGIN@ |
| 846 | _GL_FUNCDECL_SYS (getlogin, char *, (void)); |
| 847 | # endif |
| 848 | _GL_CXXALIAS_SYS (getlogin, char *, (void)); |
| 849 | _GL_CXXALIASWARN (getlogin); |
| 850 | #elif defined GNULIB_POSIXCHECK |
| 851 | # undef getlogin |
| 852 | # if HAVE_RAW_DECL_GETLOGIN |
| 853 | _GL_WARN_ON_USE (getlogin, "getlogin is unportable - " |
| 854 | "use gnulib module getlogin for portability"); |
| 855 | # endif |
| 856 | #endif |
| 857 | |
| 858 | |
| 859 | #if @GNULIB_GETLOGIN_R@ |
| 860 | /* Copies the user's login name to NAME. |
| 861 | The array pointed to by NAME has room for SIZE bytes. |
| 862 | |
| 863 | Returns 0 if successful. Upon error, an error number is returned, or -1 in |
| 864 | the case that the login name cannot be found but no specific error is |
| 865 | provided (this case is hopefully rare but is left open by the POSIX spec). |
| 866 | |
| 867 | See <https://pubs.opengroup.org/onlinepubs/9699919799/functions/getlogin.html>. |
| 868 | |
| 869 | Most programs don't need to use this function, because the information is |
| 870 | available through environment variables: |
| 871 | ${LOGNAME-$USER} on Unix platforms, |
| 872 | $USERNAME on native Windows platforms. |
| 873 | */ |
| 874 | # if @REPLACE_GETLOGIN_R@ |
| 875 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| 876 | # define getlogin_r rpl_getlogin_r |
| 877 | # endif |
| 878 | _GL_FUNCDECL_RPL (getlogin_r, int, (char *name, size_t size) |
| 879 | _GL_ARG_NONNULL ((1))); |
| 880 | _GL_CXXALIAS_RPL (getlogin_r, int, (char *name, size_t size)); |
| 881 | # else |
| 882 | # if !@HAVE_DECL_GETLOGIN_R@ |
| 883 | _GL_FUNCDECL_SYS (getlogin_r, int, (char *name, size_t size) |
| 884 | _GL_ARG_NONNULL ((1))); |
| 885 | # endif |
| 886 | /* Need to cast, because on Solaris 10 systems, the second argument is |
| 887 | int size. */ |
| 888 | _GL_CXXALIAS_SYS_CAST (getlogin_r, int, (char *name, size_t size)); |
| 889 | # endif |
| 890 | _GL_CXXALIASWARN (getlogin_r); |
| 891 | #elif defined GNULIB_POSIXCHECK |
| 892 | # undef getlogin_r |
| 893 | # if HAVE_RAW_DECL_GETLOGIN_R |
| 894 | _GL_WARN_ON_USE (getlogin_r, "getlogin_r is unportable - " |
| 895 | "use gnulib module getlogin_r for portability"); |
| 896 | # endif |
| 897 | #endif |
| 898 | |
| 899 | |
| 900 | #if @GNULIB_GETPAGESIZE@ |
| 901 | # if @REPLACE_GETPAGESIZE@ |
| 902 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| 903 | # define getpagesize rpl_getpagesize |
| 904 | # endif |
| 905 | _GL_FUNCDECL_RPL (getpagesize, int, (void)); |
| 906 | _GL_CXXALIAS_RPL (getpagesize, int, (void)); |
| 907 | # else |
| 908 | /* On HP-UX, getpagesize exists, but it is not declared in <unistd.h> even if |
| 909 | the compiler options -D_HPUX_SOURCE -D_XOPEN_SOURCE=600 are used. */ |
| 910 | # if defined __hpux |
| 911 | _GL_FUNCDECL_SYS (getpagesize, int, (void)); |
| 912 | # endif |
| 913 | # if !@HAVE_GETPAGESIZE@ |
| 914 | # if !defined getpagesize |
| 915 | /* This is for POSIX systems. */ |
| 916 | # if !defined _gl_getpagesize && defined _SC_PAGESIZE |
| 917 | # if ! (defined __VMS && __VMS_VER < 70000000) |
| 918 | # define _gl_getpagesize() sysconf (_SC_PAGESIZE) |
| 919 | # endif |
| 920 | # endif |
| 921 | /* This is for older VMS. */ |
| 922 | # if !defined _gl_getpagesize && defined __VMS |
| 923 | # ifdef __ALPHA |
| 924 | # define _gl_getpagesize() 8192 |
| 925 | # else |
| 926 | # define _gl_getpagesize() 512 |
| 927 | # endif |
| 928 | # endif |
| 929 | /* This is for BeOS. */ |
| 930 | # if !defined _gl_getpagesize && @HAVE_OS_H@ |
| 931 | # include <OS.h> |
| 932 | # if defined B_PAGE_SIZE |
| 933 | # define _gl_getpagesize() B_PAGE_SIZE |
| 934 | # endif |
| 935 | # endif |
| 936 | /* This is for AmigaOS4.0. */ |
| 937 | # if !defined _gl_getpagesize && defined __amigaos4__ |
| 938 | # define _gl_getpagesize() 2048 |
| 939 | # endif |
| 940 | /* This is for older Unix systems. */ |
| 941 | # if !defined _gl_getpagesize && @HAVE_SYS_PARAM_H@ |
| 942 | # include <sys/param.h> |
| 943 | # ifdef EXEC_PAGESIZE |
| 944 | # define _gl_getpagesize() EXEC_PAGESIZE |
| 945 | # else |
| 946 | # ifdef NBPG |
| 947 | # ifndef CLSIZE |
| 948 | # define CLSIZE 1 |
| 949 | # endif |
| 950 | # define _gl_getpagesize() (NBPG * CLSIZE) |
| 951 | # else |
| 952 | # ifdef NBPC |
| 953 | # define _gl_getpagesize() NBPC |
| 954 | # endif |
| 955 | # endif |
| 956 | # endif |
| 957 | # endif |
| 958 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| 959 | # define getpagesize() _gl_getpagesize () |
| 960 | # else |
| 961 | # if !GNULIB_defined_getpagesize_function |
| 962 | _GL_UNISTD_INLINE int |
| 963 | getpagesize () |
| 964 | { |
| 965 | return _gl_getpagesize (); |
| 966 | } |
| 967 | # define GNULIB_defined_getpagesize_function 1 |
| 968 | # endif |
| 969 | # endif |
| 970 | # endif |
| 971 | # endif |
| 972 | /* Need to cast, because on Cygwin 1.5.x systems, the return type is size_t. */ |
| 973 | _GL_CXXALIAS_SYS_CAST (getpagesize, int, (void)); |
| 974 | # endif |
| 975 | # if @HAVE_DECL_GETPAGESIZE@ |
| 976 | _GL_CXXALIASWARN (getpagesize); |
| 977 | # endif |
| 978 | #elif defined GNULIB_POSIXCHECK |
| 979 | # undef getpagesize |
| 980 | # if HAVE_RAW_DECL_GETPAGESIZE |
| 981 | _GL_WARN_ON_USE (getpagesize, "getpagesize is unportable - " |
| 982 | "use gnulib module getpagesize for portability"); |
| 983 | # endif |
| 984 | #endif |
| 985 | |
| 986 | |
| 987 | #if @GNULIB_GETPASS@ |
| 988 | /* Function getpass() from module 'getpass': |
| 989 | Read a password from /dev/tty or stdin. |
| 990 | Function getpass() from module 'getpass-gnu': |
| 991 | Read a password of arbitrary length from /dev/tty or stdin. */ |
| 992 | # if @REPLACE_GETPASS@ |
| 993 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| 994 | # undef getpass |
| 995 | # define getpass rpl_getpass |
| 996 | # endif |
| 997 | _GL_FUNCDECL_RPL (getpass, char *, (const char *prompt) |
| 998 | _GL_ARG_NONNULL ((1))); |
| 999 | _GL_CXXALIAS_RPL (getpass, char *, (const char *prompt)); |
| 1000 | # else |
| 1001 | # if !@HAVE_GETPASS@ |
| 1002 | _GL_FUNCDECL_SYS (getpass, char *, (const char *prompt) |
| 1003 | _GL_ARG_NONNULL ((1))); |
| 1004 | # endif |
| 1005 | _GL_CXXALIAS_SYS (getpass, char *, (const char *prompt)); |
| 1006 | # endif |
| 1007 | _GL_CXXALIASWARN (getpass); |
| 1008 | #elif defined GNULIB_POSIXCHECK |
| 1009 | # undef getpass |
| 1010 | # if HAVE_RAW_DECL_GETPASS |
| 1011 | _GL_WARN_ON_USE (getpass, "getpass is unportable - " |
| 1012 | "use gnulib module getpass or getpass-gnu for portability"); |
| 1013 | # endif |
| 1014 | #endif |
| 1015 | |
| 1016 | |
| 1017 | #if @GNULIB_GETUSERSHELL@ |
| 1018 | /* Return the next valid login shell on the system, or NULL when the end of |
| 1019 | the list has been reached. */ |
| 1020 | # if !@HAVE_DECL_GETUSERSHELL@ |
| 1021 | _GL_FUNCDECL_SYS (getusershell, char *, (void)); |
| 1022 | # endif |
| 1023 | _GL_CXXALIAS_SYS (getusershell, char *, (void)); |
| 1024 | _GL_CXXALIASWARN (getusershell); |
| 1025 | #elif defined GNULIB_POSIXCHECK |
| 1026 | # undef getusershell |
| 1027 | # if HAVE_RAW_DECL_GETUSERSHELL |
| 1028 | _GL_WARN_ON_USE (getusershell, "getusershell is unportable - " |
| 1029 | "use gnulib module getusershell for portability"); |
| 1030 | # endif |
| 1031 | #endif |
| 1032 | |
| 1033 | #if @GNULIB_GETUSERSHELL@ |
| 1034 | /* Rewind to pointer that is advanced at each getusershell() call. */ |
| 1035 | # if !@HAVE_DECL_GETUSERSHELL@ |
| 1036 | _GL_FUNCDECL_SYS (setusershell, void, (void)); |
| 1037 | # endif |
| 1038 | _GL_CXXALIAS_SYS (setusershell, void, (void)); |
| 1039 | _GL_CXXALIASWARN (setusershell); |
| 1040 | #elif defined GNULIB_POSIXCHECK |
| 1041 | # undef setusershell |
| 1042 | # if HAVE_RAW_DECL_SETUSERSHELL |
| 1043 | _GL_WARN_ON_USE (setusershell, "setusershell is unportable - " |
| 1044 | "use gnulib module getusershell for portability"); |
| 1045 | # endif |
| 1046 | #endif |
| 1047 | |
| 1048 | #if @GNULIB_GETUSERSHELL@ |
| 1049 | /* Free the pointer that is advanced at each getusershell() call and |
| 1050 | associated resources. */ |
| 1051 | # if !@HAVE_DECL_GETUSERSHELL@ |
| 1052 | _GL_FUNCDECL_SYS (endusershell, void, (void)); |
| 1053 | # endif |
| 1054 | _GL_CXXALIAS_SYS (endusershell, void, (void)); |
| 1055 | _GL_CXXALIASWARN (endusershell); |
| 1056 | #elif defined GNULIB_POSIXCHECK |
| 1057 | # undef endusershell |
| 1058 | # if HAVE_RAW_DECL_ENDUSERSHELL |
| 1059 | _GL_WARN_ON_USE (endusershell, "endusershell is unportable - " |
| 1060 | "use gnulib module getusershell for portability"); |
| 1061 | # endif |
| 1062 | #endif |
| 1063 | |
| 1064 | |
| 1065 | #if @GNULIB_GROUP_MEMBER@ |
| 1066 | /* Determine whether group id is in calling user's group list. */ |
| 1067 | # if !@HAVE_GROUP_MEMBER@ |
| 1068 | _GL_FUNCDECL_SYS (group_member, int, (gid_t gid)); |
| 1069 | # endif |
| 1070 | _GL_CXXALIAS_SYS (group_member, int, (gid_t gid)); |
| 1071 | _GL_CXXALIASWARN (group_member); |
| 1072 | #elif defined GNULIB_POSIXCHECK |
| 1073 | # undef group_member |
| 1074 | # if HAVE_RAW_DECL_GROUP_MEMBER |
| 1075 | _GL_WARN_ON_USE (group_member, "group_member is unportable - " |
| 1076 | "use gnulib module group-member for portability"); |
| 1077 | # endif |
| 1078 | #endif |
| 1079 | |
| 1080 | |
| 1081 | #if @GNULIB_ISATTY@ |
| 1082 | # if @REPLACE_ISATTY@ |
| 1083 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| 1084 | # undef isatty |
| 1085 | # define isatty rpl_isatty |
| 1086 | # endif |
| 1087 | _GL_FUNCDECL_RPL (isatty, int, (int fd)); |
| 1088 | _GL_CXXALIAS_RPL (isatty, int, (int fd)); |
| 1089 | # else |
| 1090 | _GL_CXXALIAS_SYS (isatty, int, (int fd)); |
| 1091 | # endif |
| 1092 | _GL_CXXALIASWARN (isatty); |
| 1093 | #elif defined GNULIB_POSIXCHECK |
| 1094 | # undef isatty |
| 1095 | # if HAVE_RAW_DECL_ISATTY |
| 1096 | _GL_WARN_ON_USE (isatty, "isatty has portability problems on native Windows - " |
| 1097 | "use gnulib module isatty for portability"); |
| 1098 | # endif |
| 1099 | #endif |
| 1100 | |
| 1101 | |
| 1102 | #if @GNULIB_LCHOWN@ |
| 1103 | /* Change the owner of FILE to UID (if UID is not -1) and the group of FILE |
| 1104 | to GID (if GID is not -1). Do not follow symbolic links. |
| 1105 | Return 0 if successful, otherwise -1 and errno set. |
| 1106 | See the POSIX:2008 specification |
| 1107 | <https://pubs.opengroup.org/onlinepubs/9699919799/functions/lchown.html>. */ |
| 1108 | # if @REPLACE_LCHOWN@ |
| 1109 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| 1110 | # undef lchown |
| 1111 | # define lchown rpl_lchown |
| 1112 | # endif |
| 1113 | _GL_FUNCDECL_RPL (lchown, int, (char const *file, uid_t owner, gid_t group) |
| 1114 | _GL_ARG_NONNULL ((1))); |
| 1115 | _GL_CXXALIAS_RPL (lchown, int, (char const *file, uid_t owner, gid_t group)); |
| 1116 | # else |
| 1117 | # if !@HAVE_LCHOWN@ |
| 1118 | _GL_FUNCDECL_SYS (lchown, int, (char const *file, uid_t owner, gid_t group) |
| 1119 | _GL_ARG_NONNULL ((1))); |
| 1120 | # endif |
| 1121 | _GL_CXXALIAS_SYS (lchown, int, (char const *file, uid_t owner, gid_t group)); |
| 1122 | # endif |
| 1123 | _GL_CXXALIASWARN (lchown); |
| 1124 | #elif defined GNULIB_POSIXCHECK |
| 1125 | # undef lchown |
| 1126 | # if HAVE_RAW_DECL_LCHOWN |
| 1127 | _GL_WARN_ON_USE (lchown, "lchown is unportable to pre-POSIX.1-2001 systems - " |
| 1128 | "use gnulib module lchown for portability"); |
| 1129 | # endif |
| 1130 | #endif |
| 1131 | |
| 1132 | |
| 1133 | #if @GNULIB_LINK@ |
| 1134 | /* Create a new hard link for an existing file. |
| 1135 | Return 0 if successful, otherwise -1 and errno set. |
| 1136 | See POSIX:2008 specification |
| 1137 | <https://pubs.opengroup.org/onlinepubs/9699919799/functions/link.html>. */ |
| 1138 | # if @REPLACE_LINK@ |
| 1139 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| 1140 | # define link rpl_link |
| 1141 | # endif |
| 1142 | _GL_FUNCDECL_RPL (link, int, (const char *path1, const char *path2) |
| 1143 | _GL_ARG_NONNULL ((1, 2))); |
| 1144 | _GL_CXXALIAS_RPL (link, int, (const char *path1, const char *path2)); |
| 1145 | # else |
| 1146 | # if !@HAVE_LINK@ |
| 1147 | _GL_FUNCDECL_SYS (link, int, (const char *path1, const char *path2) |
| 1148 | _GL_ARG_NONNULL ((1, 2))); |
| 1149 | # endif |
| 1150 | _GL_CXXALIAS_SYS (link, int, (const char *path1, const char *path2)); |
| 1151 | # endif |
| 1152 | _GL_CXXALIASWARN (link); |
| 1153 | #elif defined GNULIB_POSIXCHECK |
| 1154 | # undef link |
| 1155 | # if HAVE_RAW_DECL_LINK |
| 1156 | _GL_WARN_ON_USE (link, "link is unportable - " |
| 1157 | "use gnulib module link for portability"); |
| 1158 | # endif |
| 1159 | #endif |
| 1160 | |
| 1161 | |
| 1162 | #if @GNULIB_LINKAT@ |
| 1163 | /* Create a new hard link for an existing file, relative to two |
| 1164 | directories. FLAG controls whether symlinks are followed. |
| 1165 | Return 0 if successful, otherwise -1 and errno set. */ |
| 1166 | # if @REPLACE_LINKAT@ |
| 1167 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| 1168 | # undef linkat |
| 1169 | # define linkat rpl_linkat |
| 1170 | # endif |
| 1171 | _GL_FUNCDECL_RPL (linkat, int, |
| 1172 | (int fd1, const char *path1, int fd2, const char *path2, |
| 1173 | int flag) |
| 1174 | _GL_ARG_NONNULL ((2, 4))); |
| 1175 | _GL_CXXALIAS_RPL (linkat, int, |
| 1176 | (int fd1, const char *path1, int fd2, const char *path2, |
| 1177 | int flag)); |
| 1178 | # else |
| 1179 | # if !@HAVE_LINKAT@ |
| 1180 | _GL_FUNCDECL_SYS (linkat, int, |
| 1181 | (int fd1, const char *path1, int fd2, const char *path2, |
| 1182 | int flag) |
| 1183 | _GL_ARG_NONNULL ((2, 4))); |
| 1184 | # endif |
| 1185 | _GL_CXXALIAS_SYS (linkat, int, |
| 1186 | (int fd1, const char *path1, int fd2, const char *path2, |
| 1187 | int flag)); |
| 1188 | # endif |
| 1189 | _GL_CXXALIASWARN (linkat); |
| 1190 | #elif defined GNULIB_POSIXCHECK |
| 1191 | # undef linkat |
| 1192 | # if HAVE_RAW_DECL_LINKAT |
| 1193 | _GL_WARN_ON_USE (linkat, "linkat is unportable - " |
| 1194 | "use gnulib module linkat for portability"); |
| 1195 | # endif |
| 1196 | #endif |
| 1197 | |
| 1198 | |
| 1199 | #if @GNULIB_LSEEK@ |
| 1200 | /* Set the offset of FD relative to SEEK_SET, SEEK_CUR, or SEEK_END. |
| 1201 | Return the new offset if successful, otherwise -1 and errno set. |
| 1202 | See the POSIX:2008 specification |
| 1203 | <https://pubs.opengroup.org/onlinepubs/9699919799/functions/lseek.html>. */ |
| 1204 | # if @REPLACE_LSEEK@ |
| 1205 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| 1206 | # define lseek rpl_lseek |
| 1207 | # endif |
| 1208 | _GL_FUNCDECL_RPL (lseek, off_t, (int fd, off_t offset, int whence)); |
| 1209 | _GL_CXXALIAS_RPL (lseek, off_t, (int fd, off_t offset, int whence)); |
| 1210 | # else |
| 1211 | _GL_CXXALIAS_SYS (lseek, off_t, (int fd, off_t offset, int whence)); |
| 1212 | # endif |
| 1213 | _GL_CXXALIASWARN (lseek); |
| 1214 | #elif defined GNULIB_POSIXCHECK |
| 1215 | # undef lseek |
| 1216 | # if HAVE_RAW_DECL_LSEEK |
| 1217 | _GL_WARN_ON_USE (lseek, "lseek does not fail with ESPIPE on pipes on some " |
| 1218 | "systems - use gnulib module lseek for portability"); |
| 1219 | # endif |
| 1220 | #endif |
| 1221 | |
| 1222 | |
| 1223 | #if @GNULIB_PIPE@ |
| 1224 | /* Create a pipe, defaulting to O_BINARY mode. |
| 1225 | Store the read-end as fd[0] and the write-end as fd[1]. |
| 1226 | Return 0 upon success, or -1 with errno set upon failure. */ |
| 1227 | # if !@HAVE_PIPE@ |
| 1228 | _GL_FUNCDECL_SYS (pipe, int, (int fd[2]) _GL_ARG_NONNULL ((1))); |
| 1229 | # endif |
| 1230 | _GL_CXXALIAS_SYS (pipe, int, (int fd[2])); |
| 1231 | _GL_CXXALIASWARN (pipe); |
| 1232 | #elif defined GNULIB_POSIXCHECK |
| 1233 | # undef pipe |
| 1234 | # if HAVE_RAW_DECL_PIPE |
| 1235 | _GL_WARN_ON_USE (pipe, "pipe is unportable - " |
| 1236 | "use gnulib module pipe-posix for portability"); |
| 1237 | # endif |
| 1238 | #endif |
| 1239 | |
| 1240 | |
| 1241 | #if @GNULIB_PIPE2@ |
| 1242 | /* Create a pipe, applying the given flags when opening the read-end of the |
| 1243 | pipe and the write-end of the pipe. |
| 1244 | The flags are a bitmask, possibly including O_CLOEXEC (defined in <fcntl.h>) |
| 1245 | and O_TEXT, O_BINARY (defined in "binary-io.h"). |
| 1246 | Store the read-end as fd[0] and the write-end as fd[1]. |
| 1247 | Return 0 upon success, or -1 with errno set upon failure. |
| 1248 | See also the Linux man page at |
| 1249 | <https://www.kernel.org/doc/man-pages/online/pages/man2/pipe2.2.html>. */ |
| 1250 | # if @HAVE_PIPE2@ |
| 1251 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| 1252 | # define pipe2 rpl_pipe2 |
| 1253 | # endif |
| 1254 | _GL_FUNCDECL_RPL (pipe2, int, (int fd[2], int flags) _GL_ARG_NONNULL ((1))); |
| 1255 | _GL_CXXALIAS_RPL (pipe2, int, (int fd[2], int flags)); |
| 1256 | # else |
| 1257 | _GL_FUNCDECL_SYS (pipe2, int, (int fd[2], int flags) _GL_ARG_NONNULL ((1))); |
| 1258 | _GL_CXXALIAS_SYS (pipe2, int, (int fd[2], int flags)); |
| 1259 | # endif |
| 1260 | _GL_CXXALIASWARN (pipe2); |
| 1261 | #elif defined GNULIB_POSIXCHECK |
| 1262 | # undef pipe2 |
| 1263 | # if HAVE_RAW_DECL_PIPE2 |
| 1264 | _GL_WARN_ON_USE (pipe2, "pipe2 is unportable - " |
| 1265 | "use gnulib module pipe2 for portability"); |
| 1266 | # endif |
| 1267 | #endif |
| 1268 | |
| 1269 | |
| 1270 | #if @GNULIB_PREAD@ |
| 1271 | /* Read at most BUFSIZE bytes from FD into BUF, starting at OFFSET. |
| 1272 | Return the number of bytes placed into BUF if successful, otherwise |
| 1273 | set errno and return -1. 0 indicates EOF. |
| 1274 | See the POSIX:2008 specification |
| 1275 | <https://pubs.opengroup.org/onlinepubs/9699919799/functions/pread.html>. */ |
| 1276 | # if @REPLACE_PREAD@ |
| 1277 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| 1278 | # undef pread |
| 1279 | # define pread rpl_pread |
| 1280 | # endif |
| 1281 | _GL_FUNCDECL_RPL (pread, ssize_t, |
| 1282 | (int fd, void *buf, size_t bufsize, off_t offset) |
| 1283 | _GL_ARG_NONNULL ((2))); |
| 1284 | _GL_CXXALIAS_RPL (pread, ssize_t, |
| 1285 | (int fd, void *buf, size_t bufsize, off_t offset)); |
| 1286 | # else |
| 1287 | # if !@HAVE_PREAD@ |
| 1288 | _GL_FUNCDECL_SYS (pread, ssize_t, |
| 1289 | (int fd, void *buf, size_t bufsize, off_t offset) |
| 1290 | _GL_ARG_NONNULL ((2))); |
| 1291 | # endif |
| 1292 | _GL_CXXALIAS_SYS (pread, ssize_t, |
| 1293 | (int fd, void *buf, size_t bufsize, off_t offset)); |
| 1294 | # endif |
| 1295 | _GL_CXXALIASWARN (pread); |
| 1296 | #elif defined GNULIB_POSIXCHECK |
| 1297 | # undef pread |
| 1298 | # if HAVE_RAW_DECL_PREAD |
| 1299 | _GL_WARN_ON_USE (pread, "pread is unportable - " |
| 1300 | "use gnulib module pread for portability"); |
| 1301 | # endif |
| 1302 | #endif |
| 1303 | |
| 1304 | |
| 1305 | #if @GNULIB_PWRITE@ |
| 1306 | /* Write at most BUFSIZE bytes from BUF into FD, starting at OFFSET. |
| 1307 | Return the number of bytes written if successful, otherwise |
| 1308 | set errno and return -1. 0 indicates nothing written. See the |
| 1309 | POSIX:2008 specification |
| 1310 | <https://pubs.opengroup.org/onlinepubs/9699919799/functions/pwrite.html>. */ |
| 1311 | # if @REPLACE_PWRITE@ |
| 1312 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| 1313 | # undef pwrite |
| 1314 | # define pwrite rpl_pwrite |
| 1315 | # endif |
| 1316 | _GL_FUNCDECL_RPL (pwrite, ssize_t, |
| 1317 | (int fd, const void *buf, size_t bufsize, off_t offset) |
| 1318 | _GL_ARG_NONNULL ((2))); |
| 1319 | _GL_CXXALIAS_RPL (pwrite, ssize_t, |
| 1320 | (int fd, const void *buf, size_t bufsize, off_t offset)); |
| 1321 | # else |
| 1322 | # if !@HAVE_PWRITE@ |
| 1323 | _GL_FUNCDECL_SYS (pwrite, ssize_t, |
| 1324 | (int fd, const void *buf, size_t bufsize, off_t offset) |
| 1325 | _GL_ARG_NONNULL ((2))); |
| 1326 | # endif |
| 1327 | _GL_CXXALIAS_SYS (pwrite, ssize_t, |
| 1328 | (int fd, const void *buf, size_t bufsize, off_t offset)); |
| 1329 | # endif |
| 1330 | _GL_CXXALIASWARN (pwrite); |
| 1331 | #elif defined GNULIB_POSIXCHECK |
| 1332 | # undef pwrite |
| 1333 | # if HAVE_RAW_DECL_PWRITE |
| 1334 | _GL_WARN_ON_USE (pwrite, "pwrite is unportable - " |
| 1335 | "use gnulib module pwrite for portability"); |
| 1336 | # endif |
| 1337 | #endif |
| 1338 | |
| 1339 | |
| 1340 | #if @GNULIB_READ@ |
| 1341 | /* Read up to COUNT bytes from file descriptor FD into the buffer starting |
| 1342 | at BUF. See the POSIX:2008 specification |
| 1343 | <https://pubs.opengroup.org/onlinepubs/9699919799/functions/read.html>. */ |
| 1344 | # if @REPLACE_READ@ |
| 1345 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| 1346 | # undef read |
| 1347 | # define read rpl_read |
| 1348 | # endif |
| 1349 | _GL_FUNCDECL_RPL (read, ssize_t, (int fd, void *buf, size_t count) |
| 1350 | _GL_ARG_NONNULL ((2))); |
| 1351 | _GL_CXXALIAS_RPL (read, ssize_t, (int fd, void *buf, size_t count)); |
| 1352 | # else |
| 1353 | /* Need to cast, because on mingw, the third parameter is |
| 1354 | unsigned int count |
| 1355 | and the return type is 'int'. */ |
| 1356 | _GL_CXXALIAS_SYS_CAST (read, ssize_t, (int fd, void *buf, size_t count)); |
| 1357 | # endif |
| 1358 | _GL_CXXALIASWARN (read); |
| 1359 | #endif |
| 1360 | |
| 1361 | |
| 1362 | #if @GNULIB_READLINK@ |
| 1363 | /* Read the contents of the symbolic link FILE and place the first BUFSIZE |
| 1364 | bytes of it into BUF. Return the number of bytes placed into BUF if |
| 1365 | successful, otherwise -1 and errno set. |
| 1366 | See the POSIX:2008 specification |
| 1367 | <https://pubs.opengroup.org/onlinepubs/9699919799/functions/readlink.html>. */ |
| 1368 | # if @REPLACE_READLINK@ |
| 1369 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| 1370 | # define readlink rpl_readlink |
| 1371 | # endif |
| 1372 | _GL_FUNCDECL_RPL (readlink, ssize_t, |
| 1373 | (const char *file, char *buf, size_t bufsize) |
| 1374 | _GL_ARG_NONNULL ((1, 2))); |
| 1375 | _GL_CXXALIAS_RPL (readlink, ssize_t, |
| 1376 | (const char *file, char *buf, size_t bufsize)); |
| 1377 | # else |
| 1378 | # if !@HAVE_READLINK@ |
| 1379 | _GL_FUNCDECL_SYS (readlink, ssize_t, |
| 1380 | (const char *file, char *buf, size_t bufsize) |
| 1381 | _GL_ARG_NONNULL ((1, 2))); |
| 1382 | # endif |
| 1383 | _GL_CXXALIAS_SYS (readlink, ssize_t, |
| 1384 | (const char *file, char *buf, size_t bufsize)); |
| 1385 | # endif |
| 1386 | _GL_CXXALIASWARN (readlink); |
| 1387 | #elif defined GNULIB_POSIXCHECK |
| 1388 | # undef readlink |
| 1389 | # if HAVE_RAW_DECL_READLINK |
| 1390 | _GL_WARN_ON_USE (readlink, "readlink is unportable - " |
| 1391 | "use gnulib module readlink for portability"); |
| 1392 | # endif |
| 1393 | #endif |
| 1394 | |
| 1395 | |
| 1396 | #if @GNULIB_READLINKAT@ |
| 1397 | # if @REPLACE_READLINKAT@ |
| 1398 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| 1399 | # define readlinkat rpl_readlinkat |
| 1400 | # endif |
| 1401 | _GL_FUNCDECL_RPL (readlinkat, ssize_t, |
| 1402 | (int fd, char const *file, char *buf, size_t len) |
| 1403 | _GL_ARG_NONNULL ((2, 3))); |
| 1404 | _GL_CXXALIAS_RPL (readlinkat, ssize_t, |
| 1405 | (int fd, char const *file, char *buf, size_t len)); |
| 1406 | # else |
| 1407 | # if !@HAVE_READLINKAT@ |
| 1408 | _GL_FUNCDECL_SYS (readlinkat, ssize_t, |
| 1409 | (int fd, char const *file, char *buf, size_t len) |
| 1410 | _GL_ARG_NONNULL ((2, 3))); |
| 1411 | # endif |
| 1412 | _GL_CXXALIAS_SYS (readlinkat, ssize_t, |
| 1413 | (int fd, char const *file, char *buf, size_t len)); |
| 1414 | # endif |
| 1415 | _GL_CXXALIASWARN (readlinkat); |
| 1416 | #elif defined GNULIB_POSIXCHECK |
| 1417 | # undef readlinkat |
| 1418 | # if HAVE_RAW_DECL_READLINKAT |
| 1419 | _GL_WARN_ON_USE (readlinkat, "readlinkat is not portable - " |
| 1420 | "use gnulib module readlinkat for portability"); |
| 1421 | # endif |
| 1422 | #endif |
| 1423 | |
| 1424 | |
| 1425 | #if @GNULIB_RMDIR@ |
| 1426 | /* Remove the directory DIR. */ |
| 1427 | # if @REPLACE_RMDIR@ |
| 1428 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| 1429 | # define rmdir rpl_rmdir |
| 1430 | # endif |
| 1431 | _GL_FUNCDECL_RPL (rmdir, int, (char const *name) _GL_ARG_NONNULL ((1))); |
| 1432 | _GL_CXXALIAS_RPL (rmdir, int, (char const *name)); |
| 1433 | # else |
| 1434 | _GL_CXXALIAS_SYS (rmdir, int, (char const *name)); |
| 1435 | # endif |
| 1436 | _GL_CXXALIASWARN (rmdir); |
| 1437 | #elif defined GNULIB_POSIXCHECK |
| 1438 | # undef rmdir |
| 1439 | # if HAVE_RAW_DECL_RMDIR |
| 1440 | _GL_WARN_ON_USE (rmdir, "rmdir is unportable - " |
| 1441 | "use gnulib module rmdir for portability"); |
| 1442 | # endif |
| 1443 | #endif |
| 1444 | |
| 1445 | |
| 1446 | #if @GNULIB_SETHOSTNAME@ |
| 1447 | /* Set the host name of the machine. |
| 1448 | The host name may or may not be fully qualified. |
| 1449 | |
| 1450 | Put LEN bytes of NAME into the host name. |
| 1451 | Return 0 if successful, otherwise, set errno and return -1. |
| 1452 | |
| 1453 | Platforms with no ability to set the hostname return -1 and set |
| 1454 | errno = ENOSYS. */ |
| 1455 | # if !@HAVE_SETHOSTNAME@ || !@HAVE_DECL_SETHOSTNAME@ |
| 1456 | _GL_FUNCDECL_SYS (sethostname, int, (const char *name, size_t len) |
| 1457 | _GL_ARG_NONNULL ((1))); |
| 1458 | # endif |
| 1459 | /* Need to cast, because on Solaris 11 2011-10, Mac OS X 10.5, IRIX 6.5 |
| 1460 | and FreeBSD 6.4 the second parameter is int. On Solaris 11 |
| 1461 | 2011-10, the first parameter is not const. */ |
| 1462 | _GL_CXXALIAS_SYS_CAST (sethostname, int, (const char *name, size_t len)); |
| 1463 | _GL_CXXALIASWARN (sethostname); |
| 1464 | #elif defined GNULIB_POSIXCHECK |
| 1465 | # undef sethostname |
| 1466 | # if HAVE_RAW_DECL_SETHOSTNAME |
| 1467 | _GL_WARN_ON_USE (sethostname, "sethostname is unportable - " |
| 1468 | "use gnulib module sethostname for portability"); |
| 1469 | # endif |
| 1470 | #endif |
| 1471 | |
| 1472 | |
| 1473 | #if @GNULIB_SLEEP@ |
| 1474 | /* Pause the execution of the current thread for N seconds. |
| 1475 | Returns the number of seconds left to sleep. |
| 1476 | See the POSIX:2008 specification |
| 1477 | <https://pubs.opengroup.org/onlinepubs/9699919799/functions/sleep.html>. */ |
| 1478 | # if @REPLACE_SLEEP@ |
| 1479 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| 1480 | # undef sleep |
| 1481 | # define sleep rpl_sleep |
| 1482 | # endif |
| 1483 | _GL_FUNCDECL_RPL (sleep, unsigned int, (unsigned int n)); |
| 1484 | _GL_CXXALIAS_RPL (sleep, unsigned int, (unsigned int n)); |
| 1485 | # else |
| 1486 | # if !@HAVE_SLEEP@ |
| 1487 | _GL_FUNCDECL_SYS (sleep, unsigned int, (unsigned int n)); |
| 1488 | # endif |
| 1489 | _GL_CXXALIAS_SYS (sleep, unsigned int, (unsigned int n)); |
| 1490 | # endif |
| 1491 | _GL_CXXALIASWARN (sleep); |
| 1492 | #elif defined GNULIB_POSIXCHECK |
| 1493 | # undef sleep |
| 1494 | # if HAVE_RAW_DECL_SLEEP |
| 1495 | _GL_WARN_ON_USE (sleep, "sleep is unportable - " |
| 1496 | "use gnulib module sleep for portability"); |
| 1497 | # endif |
| 1498 | #endif |
| 1499 | |
| 1500 | |
| 1501 | #if @GNULIB_SYMLINK@ |
| 1502 | # if @REPLACE_SYMLINK@ |
| 1503 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| 1504 | # undef symlink |
| 1505 | # define symlink rpl_symlink |
| 1506 | # endif |
| 1507 | _GL_FUNCDECL_RPL (symlink, int, (char const *contents, char const *file) |
| 1508 | _GL_ARG_NONNULL ((1, 2))); |
| 1509 | _GL_CXXALIAS_RPL (symlink, int, (char const *contents, char const *file)); |
| 1510 | # else |
| 1511 | # if !@HAVE_SYMLINK@ |
| 1512 | _GL_FUNCDECL_SYS (symlink, int, (char const *contents, char const *file) |
| 1513 | _GL_ARG_NONNULL ((1, 2))); |
| 1514 | # endif |
| 1515 | _GL_CXXALIAS_SYS (symlink, int, (char const *contents, char const *file)); |
| 1516 | # endif |
| 1517 | _GL_CXXALIASWARN (symlink); |
| 1518 | #elif defined GNULIB_POSIXCHECK |
| 1519 | # undef symlink |
| 1520 | # if HAVE_RAW_DECL_SYMLINK |
| 1521 | _GL_WARN_ON_USE (symlink, "symlink is not portable - " |
| 1522 | "use gnulib module symlink for portability"); |
| 1523 | # endif |
| 1524 | #endif |
| 1525 | |
| 1526 | |
| 1527 | #if @GNULIB_SYMLINKAT@ |
| 1528 | # if @REPLACE_SYMLINKAT@ |
| 1529 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| 1530 | # undef symlinkat |
| 1531 | # define symlinkat rpl_symlinkat |
| 1532 | # endif |
| 1533 | _GL_FUNCDECL_RPL (symlinkat, int, |
| 1534 | (char const *contents, int fd, char const *file) |
| 1535 | _GL_ARG_NONNULL ((1, 3))); |
| 1536 | _GL_CXXALIAS_RPL (symlinkat, int, |
| 1537 | (char const *contents, int fd, char const *file)); |
| 1538 | # else |
| 1539 | # if !@HAVE_SYMLINKAT@ |
| 1540 | _GL_FUNCDECL_SYS (symlinkat, int, |
| 1541 | (char const *contents, int fd, char const *file) |
| 1542 | _GL_ARG_NONNULL ((1, 3))); |
| 1543 | # endif |
| 1544 | _GL_CXXALIAS_SYS (symlinkat, int, |
| 1545 | (char const *contents, int fd, char const *file)); |
| 1546 | # endif |
| 1547 | _GL_CXXALIASWARN (symlinkat); |
| 1548 | #elif defined GNULIB_POSIXCHECK |
| 1549 | # undef symlinkat |
| 1550 | # if HAVE_RAW_DECL_SYMLINKAT |
| 1551 | _GL_WARN_ON_USE (symlinkat, "symlinkat is not portable - " |
| 1552 | "use gnulib module symlinkat for portability"); |
| 1553 | # endif |
| 1554 | #endif |
| 1555 | |
| 1556 | |
| 1557 | #if @GNULIB_TRUNCATE@ |
| 1558 | /* Change the size of the file designated by FILENAME to become equal to LENGTH. |
| 1559 | Return 0 if successful, otherwise -1 and errno set. |
| 1560 | See the POSIX:2008 specification |
| 1561 | <https://pubs.opengroup.org/onlinepubs/9699919799/functions/truncate.html>. */ |
| 1562 | # if @REPLACE_TRUNCATE@ |
| 1563 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| 1564 | # undef truncate |
| 1565 | # define truncate rpl_truncate |
| 1566 | # endif |
| 1567 | _GL_FUNCDECL_RPL (truncate, int, (const char *filename, off_t length) |
| 1568 | _GL_ARG_NONNULL ((1))); |
| 1569 | _GL_CXXALIAS_RPL (truncate, int, (const char *filename, off_t length)); |
| 1570 | # else |
| 1571 | # if !@HAVE_DECL_TRUNCATE@ |
| 1572 | _GL_FUNCDECL_SYS (truncate, int, (const char *filename, off_t length) |
| 1573 | _GL_ARG_NONNULL ((1))); |
| 1574 | # endif |
| 1575 | _GL_CXXALIAS_SYS (truncate, int, (const char *filename, off_t length)); |
| 1576 | # endif |
| 1577 | _GL_CXXALIASWARN (truncate); |
| 1578 | #elif defined GNULIB_POSIXCHECK |
| 1579 | # undef truncate |
| 1580 | # if HAVE_RAW_DECL_TRUNCATE |
| 1581 | _GL_WARN_ON_USE (truncate, "truncate is unportable - " |
| 1582 | "use gnulib module truncate for portability"); |
| 1583 | # endif |
| 1584 | #endif |
| 1585 | |
| 1586 | |
| 1587 | #if @GNULIB_TTYNAME_R@ |
| 1588 | /* Store at most BUFLEN characters of the pathname of the terminal FD is |
| 1589 | open on in BUF. Return 0 on success, otherwise an error number. */ |
| 1590 | # if @REPLACE_TTYNAME_R@ |
| 1591 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| 1592 | # undef ttyname_r |
| 1593 | # define ttyname_r rpl_ttyname_r |
| 1594 | # endif |
| 1595 | _GL_FUNCDECL_RPL (ttyname_r, int, |
| 1596 | (int fd, char *buf, size_t buflen) _GL_ARG_NONNULL ((2))); |
| 1597 | _GL_CXXALIAS_RPL (ttyname_r, int, |
| 1598 | (int fd, char *buf, size_t buflen)); |
| 1599 | # else |
| 1600 | # if !@HAVE_DECL_TTYNAME_R@ |
| 1601 | _GL_FUNCDECL_SYS (ttyname_r, int, |
| 1602 | (int fd, char *buf, size_t buflen) _GL_ARG_NONNULL ((2))); |
| 1603 | # endif |
| 1604 | _GL_CXXALIAS_SYS (ttyname_r, int, |
| 1605 | (int fd, char *buf, size_t buflen)); |
| 1606 | # endif |
| 1607 | _GL_CXXALIASWARN (ttyname_r); |
| 1608 | #elif defined GNULIB_POSIXCHECK |
| 1609 | # undef ttyname_r |
| 1610 | # if HAVE_RAW_DECL_TTYNAME_R |
| 1611 | _GL_WARN_ON_USE (ttyname_r, "ttyname_r is not portable - " |
| 1612 | "use gnulib module ttyname_r for portability"); |
| 1613 | # endif |
| 1614 | #endif |
| 1615 | |
| 1616 | |
| 1617 | #if @GNULIB_UNLINK@ |
| 1618 | # if @REPLACE_UNLINK@ |
| 1619 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| 1620 | # undef unlink |
| 1621 | # define unlink rpl_unlink |
| 1622 | # endif |
| 1623 | _GL_FUNCDECL_RPL (unlink, int, (char const *file) _GL_ARG_NONNULL ((1))); |
| 1624 | _GL_CXXALIAS_RPL (unlink, int, (char const *file)); |
| 1625 | # else |
| 1626 | _GL_CXXALIAS_SYS (unlink, int, (char const *file)); |
| 1627 | # endif |
| 1628 | _GL_CXXALIASWARN (unlink); |
| 1629 | #elif defined GNULIB_POSIXCHECK |
| 1630 | # undef unlink |
| 1631 | # if HAVE_RAW_DECL_UNLINK |
| 1632 | _GL_WARN_ON_USE (unlink, "unlink is not portable - " |
| 1633 | "use gnulib module unlink for portability"); |
| 1634 | # endif |
| 1635 | #endif |
| 1636 | |
| 1637 | |
| 1638 | #if @GNULIB_UNLINKAT@ |
| 1639 | # if @REPLACE_UNLINKAT@ |
| 1640 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| 1641 | # undef unlinkat |
| 1642 | # define unlinkat rpl_unlinkat |
| 1643 | # endif |
| 1644 | _GL_FUNCDECL_RPL (unlinkat, int, (int fd, char const *file, int flag) |
| 1645 | _GL_ARG_NONNULL ((2))); |
| 1646 | _GL_CXXALIAS_RPL (unlinkat, int, (int fd, char const *file, int flag)); |
| 1647 | # else |
| 1648 | # if !@HAVE_UNLINKAT@ |
| 1649 | _GL_FUNCDECL_SYS (unlinkat, int, (int fd, char const *file, int flag) |
| 1650 | _GL_ARG_NONNULL ((2))); |
| 1651 | # endif |
| 1652 | _GL_CXXALIAS_SYS (unlinkat, int, (int fd, char const *file, int flag)); |
| 1653 | # endif |
| 1654 | _GL_CXXALIASWARN (unlinkat); |
| 1655 | #elif defined GNULIB_POSIXCHECK |
| 1656 | # undef unlinkat |
| 1657 | # if HAVE_RAW_DECL_UNLINKAT |
| 1658 | _GL_WARN_ON_USE (unlinkat, "unlinkat is not portable - " |
| 1659 | "use gnulib module openat for portability"); |
| 1660 | # endif |
| 1661 | #endif |
| 1662 | |
| 1663 | |
| 1664 | #if @GNULIB_USLEEP@ |
| 1665 | /* Pause the execution of the current thread for N microseconds. |
| 1666 | Returns 0 on completion, or -1 on range error. |
| 1667 | See the POSIX:2001 specification |
| 1668 | <https://pubs.opengroup.org/onlinepubs/009695399/functions/usleep.html>. */ |
| 1669 | # if @REPLACE_USLEEP@ |
| 1670 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| 1671 | # undef usleep |
| 1672 | # define usleep rpl_usleep |
| 1673 | # endif |
| 1674 | _GL_FUNCDECL_RPL (usleep, int, (useconds_t n)); |
| 1675 | _GL_CXXALIAS_RPL (usleep, int, (useconds_t n)); |
| 1676 | # else |
| 1677 | # if !@HAVE_USLEEP@ |
| 1678 | _GL_FUNCDECL_SYS (usleep, int, (useconds_t n)); |
| 1679 | # endif |
| 1680 | /* Need to cast, because on Haiku, the first parameter is |
| 1681 | unsigned int n. */ |
| 1682 | _GL_CXXALIAS_SYS_CAST (usleep, int, (useconds_t n)); |
| 1683 | # endif |
| 1684 | _GL_CXXALIASWARN (usleep); |
| 1685 | #elif defined GNULIB_POSIXCHECK |
| 1686 | # undef usleep |
| 1687 | # if HAVE_RAW_DECL_USLEEP |
| 1688 | _GL_WARN_ON_USE (usleep, "usleep is unportable - " |
| 1689 | "use gnulib module usleep for portability"); |
| 1690 | # endif |
| 1691 | #endif |
| 1692 | |
| 1693 | |
| 1694 | #if @GNULIB_WRITE@ |
| 1695 | /* Write up to COUNT bytes starting at BUF to file descriptor FD. |
| 1696 | See the POSIX:2008 specification |
| 1697 | <https://pubs.opengroup.org/onlinepubs/9699919799/functions/write.html>. */ |
| 1698 | # if @REPLACE_WRITE@ |
| 1699 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| 1700 | # undef write |
| 1701 | # define write rpl_write |
| 1702 | # endif |
| 1703 | _GL_FUNCDECL_RPL (write, ssize_t, (int fd, const void *buf, size_t count) |
| 1704 | _GL_ARG_NONNULL ((2))); |
| 1705 | _GL_CXXALIAS_RPL (write, ssize_t, (int fd, const void *buf, size_t count)); |
| 1706 | # else |
| 1707 | /* Need to cast, because on mingw, the third parameter is |
| 1708 | unsigned int count |
| 1709 | and the return type is 'int'. */ |
| 1710 | _GL_CXXALIAS_SYS_CAST (write, ssize_t, (int fd, const void *buf, size_t count)); |
| 1711 | # endif |
| 1712 | _GL_CXXALIASWARN (write); |
| 1713 | #endif |
| 1714 | |
| 1715 | _GL_INLINE_HEADER_END |
| 1716 | |
| 1717 | #endif /* _@GUARD_PREFIX@_UNISTD_H */ |
| 1718 | #endif /* _GL_INCLUDING_UNISTD_H */ |
| 1719 | #endif /* _@GUARD_PREFIX@_UNISTD_H */ |