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1 | /* Substitute for and wrapper around <unistd.h>. |
2 | Copyright (C) 2003-2012 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 <http://www.gnu.org/licenses/>. */ | |
16 | ||
17 | #if __GNUC__ >= 3 | |
18 | @PRAGMA_SYSTEM_HEADER@ | |
19 | #endif | |
20 | @PRAGMA_COLUMNS@ | |
21 | ||
22 | /* Special invocation convention: | |
23 | - On mingw, several headers, including <winsock2.h>, include <unistd.h>, | |
24 | but we need to ensure that both the system <unistd.h> and <winsock2.h> | |
25 | are completely included before we replace gethostname. */ | |
26 | #if @GNULIB_GETHOSTNAME@ && @UNISTD_H_HAVE_WINSOCK2_H@ \ | |
27 | && !defined _GL_WINSOCK2_H_WITNESS && defined _WINSOCK2_H | |
28 | /* <unistd.h> is being indirectly included for the first time from | |
29 | <winsock2.h>; avoid declaring any overrides. */ | |
30 | # if @HAVE_UNISTD_H@ | |
31 | # @INCLUDE_NEXT@ @NEXT_UNISTD_H@ | |
32 | # else | |
33 | # error unexpected; report this to bug-gnulib@gnu.org | |
34 | # endif | |
35 | # define _GL_WINSOCK2_H_WITNESS | |
36 | ||
37 | /* Normal invocation. */ | |
38 | #elif !defined _@GUARD_PREFIX@_UNISTD_H | |
39 | ||
40 | /* The include_next requires a split double-inclusion guard. */ | |
41 | #if @HAVE_UNISTD_H@ | |
42 | # @INCLUDE_NEXT@ @NEXT_UNISTD_H@ | |
43 | #endif | |
44 | ||
45 | /* Get all possible declarations of gethostname(). */ | |
46 | #if @GNULIB_GETHOSTNAME@ && @UNISTD_H_HAVE_WINSOCK2_H@ \ | |
47 | && !defined _GL_INCLUDING_WINSOCK2_H | |
48 | # define _GL_INCLUDING_WINSOCK2_H | |
49 | # include <winsock2.h> | |
50 | # undef _GL_INCLUDING_WINSOCK2_H | |
51 | #endif | |
52 | ||
53 | #if !defined _@GUARD_PREFIX@_UNISTD_H && !defined _GL_INCLUDING_WINSOCK2_H | |
54 | #define _@GUARD_PREFIX@_UNISTD_H | |
55 | ||
56 | /* NetBSD 5.0 mis-defines NULL. Also get size_t. */ | |
57 | #include <stddef.h> | |
58 | ||
59 | /* mingw doesn't define the SEEK_* or *_FILENO macros in <unistd.h>. */ | |
60 | /* Cygwin 1.7.1 declares symlinkat in <stdio.h>, not in <unistd.h>. */ | |
61 | /* But avoid namespace pollution on glibc systems. */ | |
62 | #if (!(defined SEEK_CUR && defined SEEK_END && defined SEEK_SET) \ | |
63 | || ((@GNULIB_SYMLINKAT@ || defined GNULIB_POSIXCHECK) \ | |
64 | && defined __CYGWIN__)) \ | |
65 | && ! defined __GLIBC__ | |
66 | # include <stdio.h> | |
67 | #endif | |
68 | ||
69 | /* Cygwin 1.7.1 declares unlinkat in <fcntl.h>, not in <unistd.h>. */ | |
70 | /* But avoid namespace pollution on glibc systems. */ | |
71 | #if (@GNULIB_UNLINKAT@ || defined GNULIB_POSIXCHECK) && defined __CYGWIN__ \ | |
72 | && ! defined __GLIBC__ | |
73 | # include <fcntl.h> | |
74 | #endif | |
75 | ||
76 | /* mingw fails to declare _exit in <unistd.h>. */ | |
77 | /* mingw, MSVC, BeOS, Haiku declare environ in <stdlib.h>, not in | |
78 | <unistd.h>. */ | |
79 | /* Solaris declares getcwd not only in <unistd.h> but also in <stdlib.h>. */ | |
80 | /* But avoid namespace pollution on glibc systems. */ | |
81 | #ifndef __GLIBC__ | |
82 | # include <stdlib.h> | |
83 | #endif | |
84 | ||
85 | /* Native Windows platforms declare chdir, getcwd, rmdir in | |
86 | <io.h> and/or <direct.h>, not in <unistd.h>. | |
87 | They also declare access(), chmod(), close(), dup(), dup2(), isatty(), | |
88 | lseek(), read(), unlink(), write() in <io.h>. */ | |
89 | #if ((@GNULIB_CHDIR@ || @GNULIB_GETCWD@ || @GNULIB_RMDIR@ \ | |
90 | || defined GNULIB_POSIXCHECK) \ | |
91 | && ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)) | |
92 | # include <io.h> /* mingw32, mingw64 */ | |
93 | # include <direct.h> /* mingw64, MSVC 9 */ | |
94 | #elif (@GNULIB_CLOSE@ || @GNULIB_DUP@ || @GNULIB_DUP2@ || @GNULIB_ISATTY@ \ | |
95 | || @GNULIB_LSEEK@ || @GNULIB_READ@ || @GNULIB_UNLINK@ || @GNULIB_WRITE@ \ | |
96 | || defined GNULIB_POSIXCHECK) \ | |
97 | && ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__) | |
98 | # include <io.h> | |
99 | #endif | |
100 | ||
101 | /* AIX and OSF/1 5.1 declare getdomainname in <netdb.h>, not in <unistd.h>. | |
102 | NonStop Kernel declares gethostname in <netdb.h>, not in <unistd.h>. */ | |
103 | /* But avoid namespace pollution on glibc systems. */ | |
104 | #if ((@GNULIB_GETDOMAINNAME@ && (defined _AIX || defined __osf__)) \ | |
105 | || (@GNULIB_GETHOSTNAME@ && defined __TANDEM)) \ | |
106 | && !defined __GLIBC__ | |
107 | # include <netdb.h> | |
108 | #endif | |
109 | ||
110 | /* MSVC defines off_t in <sys/types.h>. | |
111 | May also define off_t to a 64-bit type on native Windows. */ | |
112 | #if !@HAVE_UNISTD_H@ || @WINDOWS_64_BIT_OFF_T@ | |
113 | /* Get off_t. */ | |
114 | # include <sys/types.h> | |
115 | #endif | |
116 | ||
117 | #if (@GNULIB_READ@ || @GNULIB_WRITE@ \ | |
118 | || @GNULIB_READLINK@ || @GNULIB_READLINKAT@ \ | |
119 | || @GNULIB_PREAD@ || @GNULIB_PWRITE@ || defined GNULIB_POSIXCHECK) | |
120 | /* Get ssize_t. */ | |
121 | # include <sys/types.h> | |
122 | #endif | |
123 | ||
124 | /* Get getopt(), optarg, optind, opterr, optopt. | |
125 | But avoid namespace pollution on glibc systems. */ | |
126 | #if @GNULIB_UNISTD_H_GETOPT@ && !defined __GLIBC__ && !defined _GL_SYSTEM_GETOPT | |
127 | # include <getopt.h> | |
128 | #endif | |
129 | ||
130 | _GL_INLINE_HEADER_BEGIN | |
131 | #ifndef _GL_UNISTD_INLINE | |
132 | # define _GL_UNISTD_INLINE _GL_INLINE | |
133 | #endif | |
134 | ||
135 | /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */ | |
136 | ||
137 | /* The definition of _GL_ARG_NONNULL is copied here. */ | |
138 | ||
139 | /* The definition of _GL_WARN_ON_USE is copied here. */ | |
140 | ||
141 | ||
142 | /* Hide some function declarations from <winsock2.h>. */ | |
143 | ||
144 | #if @GNULIB_GETHOSTNAME@ && @UNISTD_H_HAVE_WINSOCK2_H@ | |
145 | # if !defined _@GUARD_PREFIX@_SYS_SOCKET_H | |
146 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
147 | # undef socket | |
148 | # define socket socket_used_without_including_sys_socket_h | |
149 | # undef connect | |
150 | # define connect connect_used_without_including_sys_socket_h | |
151 | # undef accept | |
152 | # define accept accept_used_without_including_sys_socket_h | |
153 | # undef bind | |
154 | # define bind bind_used_without_including_sys_socket_h | |
155 | # undef getpeername | |
156 | # define getpeername getpeername_used_without_including_sys_socket_h | |
157 | # undef getsockname | |
158 | # define getsockname getsockname_used_without_including_sys_socket_h | |
159 | # undef getsockopt | |
160 | # define getsockopt getsockopt_used_without_including_sys_socket_h | |
161 | # undef listen | |
162 | # define listen listen_used_without_including_sys_socket_h | |
163 | # undef recv | |
164 | # define recv recv_used_without_including_sys_socket_h | |
165 | # undef send | |
166 | # define send send_used_without_including_sys_socket_h | |
167 | # undef recvfrom | |
168 | # define recvfrom recvfrom_used_without_including_sys_socket_h | |
169 | # undef sendto | |
170 | # define sendto sendto_used_without_including_sys_socket_h | |
171 | # undef setsockopt | |
172 | # define setsockopt setsockopt_used_without_including_sys_socket_h | |
173 | # undef shutdown | |
174 | # define shutdown shutdown_used_without_including_sys_socket_h | |
175 | # else | |
176 | _GL_WARN_ON_USE (socket, | |
177 | "socket() used without including <sys/socket.h>"); | |
178 | _GL_WARN_ON_USE (connect, | |
179 | "connect() used without including <sys/socket.h>"); | |
180 | _GL_WARN_ON_USE (accept, | |
181 | "accept() used without including <sys/socket.h>"); | |
182 | _GL_WARN_ON_USE (bind, | |
183 | "bind() used without including <sys/socket.h>"); | |
184 | _GL_WARN_ON_USE (getpeername, | |
185 | "getpeername() used without including <sys/socket.h>"); | |
186 | _GL_WARN_ON_USE (getsockname, | |
187 | "getsockname() used without including <sys/socket.h>"); | |
188 | _GL_WARN_ON_USE (getsockopt, | |
189 | "getsockopt() used without including <sys/socket.h>"); | |
190 | _GL_WARN_ON_USE (listen, | |
191 | "listen() used without including <sys/socket.h>"); | |
192 | _GL_WARN_ON_USE (recv, | |
193 | "recv() used without including <sys/socket.h>"); | |
194 | _GL_WARN_ON_USE (send, | |
195 | "send() used without including <sys/socket.h>"); | |
196 | _GL_WARN_ON_USE (recvfrom, | |
197 | "recvfrom() used without including <sys/socket.h>"); | |
198 | _GL_WARN_ON_USE (sendto, | |
199 | "sendto() used without including <sys/socket.h>"); | |
200 | _GL_WARN_ON_USE (setsockopt, | |
201 | "setsockopt() used without including <sys/socket.h>"); | |
202 | _GL_WARN_ON_USE (shutdown, | |
203 | "shutdown() used without including <sys/socket.h>"); | |
204 | # endif | |
205 | # endif | |
206 | # if !defined _@GUARD_PREFIX@_SYS_SELECT_H | |
207 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
208 | # undef select | |
209 | # define select select_used_without_including_sys_select_h | |
210 | # else | |
211 | _GL_WARN_ON_USE (select, | |
212 | "select() used without including <sys/select.h>"); | |
213 | # endif | |
214 | # endif | |
215 | #endif | |
216 | ||
217 | ||
218 | /* OS/2 EMX lacks these macros. */ | |
219 | #ifndef STDIN_FILENO | |
220 | # define STDIN_FILENO 0 | |
221 | #endif | |
222 | #ifndef STDOUT_FILENO | |
223 | # define STDOUT_FILENO 1 | |
224 | #endif | |
225 | #ifndef STDERR_FILENO | |
226 | # define STDERR_FILENO 2 | |
227 | #endif | |
228 | ||
229 | /* Ensure *_OK macros exist. */ | |
230 | #ifndef F_OK | |
231 | # define F_OK 0 | |
232 | # define X_OK 1 | |
233 | # define W_OK 2 | |
234 | # define R_OK 4 | |
235 | #endif | |
236 | ||
237 | ||
238 | /* Declare overridden functions. */ | |
239 | ||
240 | ||
241 | #if defined GNULIB_POSIXCHECK | |
242 | /* The access() function is a security risk. */ | |
243 | _GL_WARN_ON_USE (access, "the access function is a security risk - " | |
244 | "use the gnulib module faccessat instead"); | |
245 | #endif | |
246 | ||
247 | ||
248 | #if @GNULIB_CHDIR@ | |
249 | _GL_CXXALIAS_SYS (chdir, int, (const char *file) _GL_ARG_NONNULL ((1))); | |
250 | _GL_CXXALIASWARN (chdir); | |
251 | #elif defined GNULIB_POSIXCHECK | |
252 | # undef chdir | |
253 | # if HAVE_RAW_DECL_CHDIR | |
254 | _GL_WARN_ON_USE (chown, "chdir is not always in <unistd.h> - " | |
255 | "use gnulib module chdir for portability"); | |
256 | # endif | |
257 | #endif | |
258 | ||
259 | ||
260 | #if @GNULIB_CHOWN@ | |
261 | /* Change the owner of FILE to UID (if UID is not -1) and the group of FILE | |
262 | to GID (if GID is not -1). Follow symbolic links. | |
263 | Return 0 if successful, otherwise -1 and errno set. | |
264 | See the POSIX:2008 specification | |
265 | <http://pubs.opengroup.org/onlinepubs/9699919799/functions/chown.html. */ | |
266 | # if @REPLACE_CHOWN@ | |
267 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
268 | # undef chown | |
269 | # define chown rpl_chown | |
270 | # endif | |
271 | _GL_FUNCDECL_RPL (chown, int, (const char *file, uid_t uid, gid_t gid) | |
272 | _GL_ARG_NONNULL ((1))); | |
273 | _GL_CXXALIAS_RPL (chown, int, (const char *file, uid_t uid, gid_t gid)); | |
274 | # else | |
275 | # if !@HAVE_CHOWN@ | |
276 | _GL_FUNCDECL_SYS (chown, int, (const char *file, uid_t uid, gid_t gid) | |
277 | _GL_ARG_NONNULL ((1))); | |
278 | # endif | |
279 | _GL_CXXALIAS_SYS (chown, int, (const char *file, uid_t uid, gid_t gid)); | |
280 | # endif | |
281 | _GL_CXXALIASWARN (chown); | |
282 | #elif defined GNULIB_POSIXCHECK | |
283 | # undef chown | |
284 | # if HAVE_RAW_DECL_CHOWN | |
285 | _GL_WARN_ON_USE (chown, "chown fails to follow symlinks on some systems and " | |
286 | "doesn't treat a uid or gid of -1 on some systems - " | |
287 | "use gnulib module chown for portability"); | |
288 | # endif | |
289 | #endif | |
290 | ||
291 | ||
292 | #if @GNULIB_CLOSE@ | |
293 | # if @REPLACE_CLOSE@ | |
294 | /* Automatically included by modules that need a replacement for close. */ | |
295 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
296 | # undef close | |
297 | # define close rpl_close | |
298 | # endif | |
299 | _GL_FUNCDECL_RPL (close, int, (int fd)); | |
300 | _GL_CXXALIAS_RPL (close, int, (int fd)); | |
301 | # else | |
302 | _GL_CXXALIAS_SYS (close, int, (int fd)); | |
303 | # endif | |
304 | _GL_CXXALIASWARN (close); | |
305 | #elif @UNISTD_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS@ | |
306 | # undef close | |
307 | # define close close_used_without_requesting_gnulib_module_close | |
308 | #elif defined GNULIB_POSIXCHECK | |
309 | # undef close | |
310 | /* Assume close is always declared. */ | |
311 | _GL_WARN_ON_USE (close, "close does not portably work on sockets - " | |
312 | "use gnulib module close for portability"); | |
313 | #endif | |
314 | ||
315 | ||
316 | #if @GNULIB_DUP@ | |
317 | # if @REPLACE_DUP@ | |
318 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
319 | # define dup rpl_dup | |
320 | # endif | |
321 | _GL_FUNCDECL_RPL (dup, int, (int oldfd)); | |
322 | _GL_CXXALIAS_RPL (dup, int, (int oldfd)); | |
323 | # else | |
324 | _GL_CXXALIAS_SYS (dup, int, (int oldfd)); | |
325 | # endif | |
326 | _GL_CXXALIASWARN (dup); | |
327 | #elif defined GNULIB_POSIXCHECK | |
328 | # undef dup | |
329 | # if HAVE_RAW_DECL_DUP | |
330 | _GL_WARN_ON_USE (dup, "dup is unportable - " | |
331 | "use gnulib module dup for portability"); | |
332 | # endif | |
333 | #endif | |
334 | ||
335 | ||
336 | #if @GNULIB_DUP2@ | |
337 | /* Copy the file descriptor OLDFD into file descriptor NEWFD. Do nothing if | |
338 | NEWFD = OLDFD, otherwise close NEWFD first if it is open. | |
339 | Return newfd if successful, otherwise -1 and errno set. | |
340 | See the POSIX:2008 specification | |
341 | <http://pubs.opengroup.org/onlinepubs/9699919799/functions/dup2.html>. */ | |
342 | # if @REPLACE_DUP2@ | |
343 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
344 | # define dup2 rpl_dup2 | |
345 | # endif | |
346 | _GL_FUNCDECL_RPL (dup2, int, (int oldfd, int newfd)); | |
347 | _GL_CXXALIAS_RPL (dup2, int, (int oldfd, int newfd)); | |
348 | # else | |
349 | # if !@HAVE_DUP2@ | |
350 | _GL_FUNCDECL_SYS (dup2, int, (int oldfd, int newfd)); | |
351 | # endif | |
352 | _GL_CXXALIAS_SYS (dup2, int, (int oldfd, int newfd)); | |
353 | # endif | |
354 | _GL_CXXALIASWARN (dup2); | |
355 | #elif defined GNULIB_POSIXCHECK | |
356 | # undef dup2 | |
357 | # if HAVE_RAW_DECL_DUP2 | |
358 | _GL_WARN_ON_USE (dup2, "dup2 is unportable - " | |
359 | "use gnulib module dup2 for portability"); | |
360 | # endif | |
361 | #endif | |
362 | ||
363 | ||
364 | #if @GNULIB_DUP3@ | |
365 | /* Copy the file descriptor OLDFD into file descriptor NEWFD, with the | |
366 | specified flags. | |
367 | The flags are a bitmask, possibly including O_CLOEXEC (defined in <fcntl.h>) | |
368 | and O_TEXT, O_BINARY (defined in "binary-io.h"). | |
369 | Close NEWFD first if it is open. | |
370 | Return newfd if successful, otherwise -1 and errno set. | |
371 | See the Linux man page at | |
372 | <http://www.kernel.org/doc/man-pages/online/pages/man2/dup3.2.html>. */ | |
373 | # if @HAVE_DUP3@ | |
374 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
375 | # define dup3 rpl_dup3 | |
376 | # endif | |
377 | _GL_FUNCDECL_RPL (dup3, int, (int oldfd, int newfd, int flags)); | |
378 | _GL_CXXALIAS_RPL (dup3, int, (int oldfd, int newfd, int flags)); | |
379 | # else | |
380 | _GL_FUNCDECL_SYS (dup3, int, (int oldfd, int newfd, int flags)); | |
381 | _GL_CXXALIAS_SYS (dup3, int, (int oldfd, int newfd, int flags)); | |
382 | # endif | |
383 | _GL_CXXALIASWARN (dup3); | |
384 | #elif defined GNULIB_POSIXCHECK | |
385 | # undef dup3 | |
386 | # if HAVE_RAW_DECL_DUP3 | |
387 | _GL_WARN_ON_USE (dup3, "dup3 is unportable - " | |
388 | "use gnulib module dup3 for portability"); | |
389 | # endif | |
390 | #endif | |
391 | ||
392 | ||
393 | #if @GNULIB_ENVIRON@ | |
394 | # if !@HAVE_DECL_ENVIRON@ | |
395 | /* Set of environment variables and values. An array of strings of the form | |
396 | "VARIABLE=VALUE", terminated with a NULL. */ | |
397 | # if defined __APPLE__ && defined __MACH__ | |
398 | # include <crt_externs.h> | |
399 | # define environ (*_NSGetEnviron ()) | |
400 | # else | |
401 | # ifdef __cplusplus | |
402 | extern "C" { | |
403 | # endif | |
404 | extern char **environ; | |
405 | # ifdef __cplusplus | |
406 | } | |
407 | # endif | |
408 | # endif | |
409 | # endif | |
410 | #elif defined GNULIB_POSIXCHECK | |
411 | # if HAVE_RAW_DECL_ENVIRON | |
412 | _GL_UNISTD_INLINE char *** | |
413 | rpl_environ (void) | |
414 | { | |
415 | return &environ; | |
416 | } | |
417 | _GL_WARN_ON_USE (rpl_environ, "environ is unportable - " | |
418 | "use gnulib module environ for portability"); | |
419 | # undef environ | |
420 | # define environ (*rpl_environ ()) | |
421 | # endif | |
422 | #endif | |
423 | ||
424 | ||
425 | #if @GNULIB_EUIDACCESS@ | |
426 | /* Like access(), except that it uses the effective user id and group id of | |
427 | the current process. */ | |
428 | # if !@HAVE_EUIDACCESS@ | |
429 | _GL_FUNCDECL_SYS (euidaccess, int, (const char *filename, int mode) | |
430 | _GL_ARG_NONNULL ((1))); | |
431 | # endif | |
432 | _GL_CXXALIAS_SYS (euidaccess, int, (const char *filename, int mode)); | |
433 | _GL_CXXALIASWARN (euidaccess); | |
434 | # if defined GNULIB_POSIXCHECK | |
435 | /* Like access(), this function is a security risk. */ | |
436 | _GL_WARN_ON_USE (euidaccess, "the euidaccess function is a security risk - " | |
437 | "use the gnulib module faccessat instead"); | |
438 | # endif | |
439 | #elif defined GNULIB_POSIXCHECK | |
440 | # undef euidaccess | |
441 | # if HAVE_RAW_DECL_EUIDACCESS | |
442 | _GL_WARN_ON_USE (euidaccess, "euidaccess is unportable - " | |
443 | "use gnulib module euidaccess for portability"); | |
444 | # endif | |
445 | #endif | |
446 | ||
447 | ||
448 | #if @GNULIB_FACCESSAT@ | |
449 | # if !@HAVE_FACCESSAT@ | |
450 | _GL_FUNCDECL_SYS (faccessat, int, | |
451 | (int fd, char const *file, int mode, int flag) | |
452 | _GL_ARG_NONNULL ((2))); | |
453 | # endif | |
454 | _GL_CXXALIAS_SYS (faccessat, int, | |
455 | (int fd, char const *file, int mode, int flag)); | |
456 | _GL_CXXALIASWARN (faccessat); | |
457 | #elif defined GNULIB_POSIXCHECK | |
458 | # undef faccessat | |
459 | # if HAVE_RAW_DECL_FACCESSAT | |
460 | _GL_WARN_ON_USE (faccessat, "faccessat is not portable - " | |
461 | "use gnulib module faccessat for portability"); | |
462 | # endif | |
463 | #endif | |
464 | ||
465 | ||
466 | #if @GNULIB_FCHDIR@ | |
467 | /* Change the process' current working directory to the directory on which | |
468 | the given file descriptor is open. | |
469 | Return 0 if successful, otherwise -1 and errno set. | |
470 | See the POSIX:2008 specification | |
471 | <http://pubs.opengroup.org/onlinepubs/9699919799/functions/fchdir.html>. */ | |
472 | # if ! @HAVE_FCHDIR@ | |
473 | _GL_FUNCDECL_SYS (fchdir, int, (int /*fd*/)); | |
474 | ||
475 | /* Gnulib internal hooks needed to maintain the fchdir metadata. */ | |
476 | _GL_EXTERN_C int _gl_register_fd (int fd, const char *filename) | |
477 | _GL_ARG_NONNULL ((2)); | |
478 | _GL_EXTERN_C void _gl_unregister_fd (int fd); | |
479 | _GL_EXTERN_C int _gl_register_dup (int oldfd, int newfd); | |
480 | _GL_EXTERN_C const char *_gl_directory_name (int fd); | |
481 | ||
482 | # else | |
483 | # if !@HAVE_DECL_FCHDIR@ | |
484 | _GL_FUNCDECL_SYS (fchdir, int, (int /*fd*/)); | |
485 | # endif | |
486 | # endif | |
487 | _GL_CXXALIAS_SYS (fchdir, int, (int /*fd*/)); | |
488 | _GL_CXXALIASWARN (fchdir); | |
489 | #elif defined GNULIB_POSIXCHECK | |
490 | # undef fchdir | |
491 | # if HAVE_RAW_DECL_FCHDIR | |
492 | _GL_WARN_ON_USE (fchdir, "fchdir is unportable - " | |
493 | "use gnulib module fchdir for portability"); | |
494 | # endif | |
495 | #endif | |
496 | ||
497 | ||
498 | #if @GNULIB_FCHOWNAT@ | |
499 | # if @REPLACE_FCHOWNAT@ | |
500 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
501 | # undef fchownat | |
502 | # define fchownat rpl_fchownat | |
503 | # endif | |
504 | _GL_FUNCDECL_RPL (fchownat, int, (int fd, char const *file, | |
505 | uid_t owner, gid_t group, int flag) | |
506 | _GL_ARG_NONNULL ((2))); | |
507 | _GL_CXXALIAS_RPL (fchownat, int, (int fd, char const *file, | |
508 | uid_t owner, gid_t group, int flag)); | |
509 | # else | |
510 | # if !@HAVE_FCHOWNAT@ | |
511 | _GL_FUNCDECL_SYS (fchownat, int, (int fd, char const *file, | |
512 | uid_t owner, gid_t group, int flag) | |
513 | _GL_ARG_NONNULL ((2))); | |
514 | # endif | |
515 | _GL_CXXALIAS_SYS (fchownat, int, (int fd, char const *file, | |
516 | uid_t owner, gid_t group, int flag)); | |
517 | # endif | |
518 | _GL_CXXALIASWARN (fchownat); | |
519 | #elif defined GNULIB_POSIXCHECK | |
520 | # undef fchownat | |
521 | # if HAVE_RAW_DECL_FCHOWNAT | |
522 | _GL_WARN_ON_USE (fchownat, "fchownat is not portable - " | |
523 | "use gnulib module openat for portability"); | |
524 | # endif | |
525 | #endif | |
526 | ||
527 | ||
528 | #if @GNULIB_FDATASYNC@ | |
529 | /* Synchronize changes to a file. | |
530 | Return 0 if successful, otherwise -1 and errno set. | |
531 | See POSIX:2008 specification | |
532 | <http://pubs.opengroup.org/onlinepubs/9699919799/functions/fdatasync.html>. */ | |
533 | # if !@HAVE_FDATASYNC@ || !@HAVE_DECL_FDATASYNC@ | |
534 | _GL_FUNCDECL_SYS (fdatasync, int, (int fd)); | |
535 | # endif | |
536 | _GL_CXXALIAS_SYS (fdatasync, int, (int fd)); | |
537 | _GL_CXXALIASWARN (fdatasync); | |
538 | #elif defined GNULIB_POSIXCHECK | |
539 | # undef fdatasync | |
540 | # if HAVE_RAW_DECL_FDATASYNC | |
541 | _GL_WARN_ON_USE (fdatasync, "fdatasync is unportable - " | |
542 | "use gnulib module fdatasync for portability"); | |
543 | # endif | |
544 | #endif | |
545 | ||
546 | ||
547 | #if @GNULIB_FSYNC@ | |
548 | /* Synchronize changes, including metadata, to a file. | |
549 | Return 0 if successful, otherwise -1 and errno set. | |
550 | See POSIX:2008 specification | |
551 | <http://pubs.opengroup.org/onlinepubs/9699919799/functions/fsync.html>. */ | |
552 | # if !@HAVE_FSYNC@ | |
553 | _GL_FUNCDECL_SYS (fsync, int, (int fd)); | |
554 | # endif | |
555 | _GL_CXXALIAS_SYS (fsync, int, (int fd)); | |
556 | _GL_CXXALIASWARN (fsync); | |
557 | #elif defined GNULIB_POSIXCHECK | |
558 | # undef fsync | |
559 | # if HAVE_RAW_DECL_FSYNC | |
560 | _GL_WARN_ON_USE (fsync, "fsync is unportable - " | |
561 | "use gnulib module fsync for portability"); | |
562 | # endif | |
563 | #endif | |
564 | ||
565 | ||
566 | #if @GNULIB_FTRUNCATE@ | |
567 | /* Change the size of the file to which FD is opened to become equal to LENGTH. | |
568 | Return 0 if successful, otherwise -1 and errno set. | |
569 | See the POSIX:2008 specification | |
570 | <http://pubs.opengroup.org/onlinepubs/9699919799/functions/ftruncate.html>. */ | |
571 | # if @REPLACE_FTRUNCATE@ | |
572 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
573 | # undef ftruncate | |
574 | # define ftruncate rpl_ftruncate | |
575 | # endif | |
576 | _GL_FUNCDECL_RPL (ftruncate, int, (int fd, off_t length)); | |
577 | _GL_CXXALIAS_RPL (ftruncate, int, (int fd, off_t length)); | |
578 | # else | |
579 | # if !@HAVE_FTRUNCATE@ | |
580 | _GL_FUNCDECL_SYS (ftruncate, int, (int fd, off_t length)); | |
581 | # endif | |
582 | _GL_CXXALIAS_SYS (ftruncate, int, (int fd, off_t length)); | |
583 | # endif | |
584 | _GL_CXXALIASWARN (ftruncate); | |
585 | #elif defined GNULIB_POSIXCHECK | |
586 | # undef ftruncate | |
587 | # if HAVE_RAW_DECL_FTRUNCATE | |
588 | _GL_WARN_ON_USE (ftruncate, "ftruncate is unportable - " | |
589 | "use gnulib module ftruncate for portability"); | |
590 | # endif | |
591 | #endif | |
592 | ||
593 | ||
594 | #if @GNULIB_GETCWD@ | |
595 | /* Get the name of the current working directory, and put it in SIZE bytes | |
596 | of BUF. | |
597 | Return BUF if successful, or NULL if the directory couldn't be determined | |
598 | or SIZE was too small. | |
599 | See the POSIX:2008 specification | |
600 | <http://pubs.opengroup.org/onlinepubs/9699919799/functions/getcwd.html>. | |
601 | Additionally, the gnulib module 'getcwd' guarantees the following GNU | |
602 | extension: If BUF is NULL, an array is allocated with 'malloc'; the array | |
603 | is SIZE bytes long, unless SIZE == 0, in which case it is as big as | |
604 | necessary. */ | |
605 | # if @REPLACE_GETCWD@ | |
606 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
607 | # define getcwd rpl_getcwd | |
608 | # endif | |
609 | _GL_FUNCDECL_RPL (getcwd, char *, (char *buf, size_t size)); | |
610 | _GL_CXXALIAS_RPL (getcwd, char *, (char *buf, size_t size)); | |
611 | # else | |
612 | /* Need to cast, because on mingw, the second parameter is | |
613 | int size. */ | |
614 | _GL_CXXALIAS_SYS_CAST (getcwd, char *, (char *buf, size_t size)); | |
615 | # endif | |
616 | _GL_CXXALIASWARN (getcwd); | |
617 | #elif defined GNULIB_POSIXCHECK | |
618 | # undef getcwd | |
619 | # if HAVE_RAW_DECL_GETCWD | |
620 | _GL_WARN_ON_USE (getcwd, "getcwd is unportable - " | |
621 | "use gnulib module getcwd for portability"); | |
622 | # endif | |
623 | #endif | |
624 | ||
625 | ||
626 | #if @GNULIB_GETDOMAINNAME@ | |
627 | /* Return the NIS domain name of the machine. | |
628 | WARNING! The NIS domain name is unrelated to the fully qualified host name | |
629 | of the machine. It is also unrelated to email addresses. | |
630 | WARNING! The NIS domain name is usually the empty string or "(none)" when | |
631 | not using NIS. | |
632 | ||
633 | Put up to LEN bytes of the NIS domain name into NAME. | |
634 | Null terminate it if the name is shorter than LEN. | |
635 | If the NIS domain name is longer than LEN, set errno = EINVAL and return -1. | |
636 | Return 0 if successful, otherwise set errno and return -1. */ | |
637 | # if @REPLACE_GETDOMAINNAME@ | |
638 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
639 | # undef getdomainname | |
640 | # define getdomainname rpl_getdomainname | |
641 | # endif | |
642 | _GL_FUNCDECL_RPL (getdomainname, int, (char *name, size_t len) | |
643 | _GL_ARG_NONNULL ((1))); | |
644 | _GL_CXXALIAS_RPL (getdomainname, int, (char *name, size_t len)); | |
645 | # else | |
646 | # if !@HAVE_DECL_GETDOMAINNAME@ | |
647 | _GL_FUNCDECL_SYS (getdomainname, int, (char *name, size_t len) | |
648 | _GL_ARG_NONNULL ((1))); | |
649 | # endif | |
650 | _GL_CXXALIAS_SYS (getdomainname, int, (char *name, size_t len)); | |
651 | # endif | |
652 | _GL_CXXALIASWARN (getdomainname); | |
653 | #elif defined GNULIB_POSIXCHECK | |
654 | # undef getdomainname | |
655 | # if HAVE_RAW_DECL_GETDOMAINNAME | |
656 | _GL_WARN_ON_USE (getdomainname, "getdomainname is unportable - " | |
657 | "use gnulib module getdomainname for portability"); | |
658 | # endif | |
659 | #endif | |
660 | ||
661 | ||
662 | #if @GNULIB_GETDTABLESIZE@ | |
663 | /* Return the maximum number of file descriptors in the current process. | |
664 | In POSIX, this is same as sysconf (_SC_OPEN_MAX). */ | |
665 | # if !@HAVE_GETDTABLESIZE@ | |
666 | _GL_FUNCDECL_SYS (getdtablesize, int, (void)); | |
667 | # endif | |
668 | _GL_CXXALIAS_SYS (getdtablesize, int, (void)); | |
669 | _GL_CXXALIASWARN (getdtablesize); | |
670 | #elif defined GNULIB_POSIXCHECK | |
671 | # undef getdtablesize | |
672 | # if HAVE_RAW_DECL_GETDTABLESIZE | |
673 | _GL_WARN_ON_USE (getdtablesize, "getdtablesize is unportable - " | |
674 | "use gnulib module getdtablesize for portability"); | |
675 | # endif | |
676 | #endif | |
677 | ||
678 | ||
679 | #if @GNULIB_GETGROUPS@ | |
680 | /* Return the supplemental groups that the current process belongs to. | |
681 | It is unspecified whether the effective group id is in the list. | |
682 | If N is 0, return the group count; otherwise, N describes how many | |
683 | entries are available in GROUPS. Return -1 and set errno if N is | |
684 | not 0 and not large enough. Fails with ENOSYS on some systems. */ | |
685 | # if @REPLACE_GETGROUPS@ | |
686 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
687 | # undef getgroups | |
688 | # define getgroups rpl_getgroups | |
689 | # endif | |
690 | _GL_FUNCDECL_RPL (getgroups, int, (int n, gid_t *groups)); | |
691 | _GL_CXXALIAS_RPL (getgroups, int, (int n, gid_t *groups)); | |
692 | # else | |
693 | # if !@HAVE_GETGROUPS@ | |
694 | _GL_FUNCDECL_SYS (getgroups, int, (int n, gid_t *groups)); | |
695 | # endif | |
696 | _GL_CXXALIAS_SYS (getgroups, int, (int n, gid_t *groups)); | |
697 | # endif | |
698 | _GL_CXXALIASWARN (getgroups); | |
699 | #elif defined GNULIB_POSIXCHECK | |
700 | # undef getgroups | |
701 | # if HAVE_RAW_DECL_GETGROUPS | |
702 | _GL_WARN_ON_USE (getgroups, "getgroups is unportable - " | |
703 | "use gnulib module getgroups for portability"); | |
704 | # endif | |
705 | #endif | |
706 | ||
707 | ||
708 | #if @GNULIB_GETHOSTNAME@ | |
709 | /* Return the standard host name of the machine. | |
710 | WARNING! The host name may or may not be fully qualified. | |
711 | ||
712 | Put up to LEN bytes of the host name into NAME. | |
713 | Null terminate it if the name is shorter than LEN. | |
714 | If the host name is longer than LEN, set errno = EINVAL and return -1. | |
715 | Return 0 if successful, otherwise set errno and return -1. */ | |
716 | # if @UNISTD_H_HAVE_WINSOCK2_H@ | |
717 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
718 | # undef gethostname | |
719 | # define gethostname rpl_gethostname | |
720 | # endif | |
721 | _GL_FUNCDECL_RPL (gethostname, int, (char *name, size_t len) | |
722 | _GL_ARG_NONNULL ((1))); | |
723 | _GL_CXXALIAS_RPL (gethostname, int, (char *name, size_t len)); | |
724 | # else | |
725 | # if !@HAVE_GETHOSTNAME@ | |
726 | _GL_FUNCDECL_SYS (gethostname, int, (char *name, size_t len) | |
727 | _GL_ARG_NONNULL ((1))); | |
728 | # endif | |
729 | /* Need to cast, because on Solaris 10 and OSF/1 5.1 systems, the second | |
730 | parameter is | |
731 | int len. */ | |
732 | _GL_CXXALIAS_SYS_CAST (gethostname, int, (char *name, size_t len)); | |
733 | # endif | |
734 | _GL_CXXALIASWARN (gethostname); | |
735 | #elif @UNISTD_H_HAVE_WINSOCK2_H@ | |
736 | # undef gethostname | |
737 | # define gethostname gethostname_used_without_requesting_gnulib_module_gethostname | |
738 | #elif defined GNULIB_POSIXCHECK | |
739 | # undef gethostname | |
740 | # if HAVE_RAW_DECL_GETHOSTNAME | |
741 | _GL_WARN_ON_USE (gethostname, "gethostname is unportable - " | |
742 | "use gnulib module gethostname for portability"); | |
743 | # endif | |
744 | #endif | |
745 | ||
746 | ||
747 | #if @GNULIB_GETLOGIN@ | |
748 | /* Returns the user's login name, or NULL if it cannot be found. Upon error, | |
749 | returns NULL with errno set. | |
750 | ||
751 | See <http://www.opengroup.org/susv3xsh/getlogin.html>. | |
752 | ||
753 | Most programs don't need to use this function, because the information is | |
754 | available through environment variables: | |
755 | ${LOGNAME-$USER} on Unix platforms, | |
756 | $USERNAME on native Windows platforms. | |
757 | */ | |
758 | # if !@HAVE_GETLOGIN@ | |
759 | _GL_FUNCDECL_SYS (getlogin, char *, (void)); | |
760 | # endif | |
761 | _GL_CXXALIAS_SYS (getlogin, char *, (void)); | |
762 | _GL_CXXALIASWARN (getlogin); | |
763 | #elif defined GNULIB_POSIXCHECK | |
764 | # undef getlogin | |
765 | # if HAVE_RAW_DECL_GETLOGIN | |
766 | _GL_WARN_ON_USE (getlogin, "getlogin is unportable - " | |
767 | "use gnulib module getlogin for portability"); | |
768 | # endif | |
769 | #endif | |
770 | ||
771 | ||
772 | #if @GNULIB_GETLOGIN_R@ | |
773 | /* Copies the user's login name to NAME. | |
774 | The array pointed to by NAME has room for SIZE bytes. | |
775 | ||
776 | Returns 0 if successful. Upon error, an error number is returned, or -1 in | |
777 | the case that the login name cannot be found but no specific error is | |
778 | provided (this case is hopefully rare but is left open by the POSIX spec). | |
779 | ||
780 | See <http://www.opengroup.org/susv3xsh/getlogin.html>. | |
781 | ||
782 | Most programs don't need to use this function, because the information is | |
783 | available through environment variables: | |
784 | ${LOGNAME-$USER} on Unix platforms, | |
785 | $USERNAME on native Windows platforms. | |
786 | */ | |
787 | # if @REPLACE_GETLOGIN_R@ | |
788 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
789 | # define getlogin_r rpl_getlogin_r | |
790 | # endif | |
791 | _GL_FUNCDECL_RPL (getlogin_r, int, (char *name, size_t size) | |
792 | _GL_ARG_NONNULL ((1))); | |
793 | _GL_CXXALIAS_RPL (getlogin_r, int, (char *name, size_t size)); | |
794 | # else | |
795 | # if !@HAVE_DECL_GETLOGIN_R@ | |
796 | _GL_FUNCDECL_SYS (getlogin_r, int, (char *name, size_t size) | |
797 | _GL_ARG_NONNULL ((1))); | |
798 | # endif | |
799 | /* Need to cast, because on Solaris 10 systems, the second argument is | |
800 | int size. */ | |
801 | _GL_CXXALIAS_SYS_CAST (getlogin_r, int, (char *name, size_t size)); | |
802 | # endif | |
803 | _GL_CXXALIASWARN (getlogin_r); | |
804 | #elif defined GNULIB_POSIXCHECK | |
805 | # undef getlogin_r | |
806 | # if HAVE_RAW_DECL_GETLOGIN_R | |
807 | _GL_WARN_ON_USE (getlogin_r, "getlogin_r is unportable - " | |
808 | "use gnulib module getlogin_r for portability"); | |
809 | # endif | |
810 | #endif | |
811 | ||
812 | ||
813 | #if @GNULIB_GETPAGESIZE@ | |
814 | # if @REPLACE_GETPAGESIZE@ | |
815 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
816 | # define getpagesize rpl_getpagesize | |
817 | # endif | |
818 | _GL_FUNCDECL_RPL (getpagesize, int, (void)); | |
819 | _GL_CXXALIAS_RPL (getpagesize, int, (void)); | |
820 | # else | |
821 | # if !@HAVE_GETPAGESIZE@ | |
822 | # if !defined getpagesize | |
823 | /* This is for POSIX systems. */ | |
824 | # if !defined _gl_getpagesize && defined _SC_PAGESIZE | |
825 | # if ! (defined __VMS && __VMS_VER < 70000000) | |
826 | # define _gl_getpagesize() sysconf (_SC_PAGESIZE) | |
827 | # endif | |
828 | # endif | |
829 | /* This is for older VMS. */ | |
830 | # if !defined _gl_getpagesize && defined __VMS | |
831 | # ifdef __ALPHA | |
832 | # define _gl_getpagesize() 8192 | |
833 | # else | |
834 | # define _gl_getpagesize() 512 | |
835 | # endif | |
836 | # endif | |
837 | /* This is for BeOS. */ | |
838 | # if !defined _gl_getpagesize && @HAVE_OS_H@ | |
839 | # include <OS.h> | |
840 | # if defined B_PAGE_SIZE | |
841 | # define _gl_getpagesize() B_PAGE_SIZE | |
842 | # endif | |
843 | # endif | |
844 | /* This is for AmigaOS4.0. */ | |
845 | # if !defined _gl_getpagesize && defined __amigaos4__ | |
846 | # define _gl_getpagesize() 2048 | |
847 | # endif | |
848 | /* This is for older Unix systems. */ | |
849 | # if !defined _gl_getpagesize && @HAVE_SYS_PARAM_H@ | |
850 | # include <sys/param.h> | |
851 | # ifdef EXEC_PAGESIZE | |
852 | # define _gl_getpagesize() EXEC_PAGESIZE | |
853 | # else | |
854 | # ifdef NBPG | |
855 | # ifndef CLSIZE | |
856 | # define CLSIZE 1 | |
857 | # endif | |
858 | # define _gl_getpagesize() (NBPG * CLSIZE) | |
859 | # else | |
860 | # ifdef NBPC | |
861 | # define _gl_getpagesize() NBPC | |
862 | # endif | |
863 | # endif | |
864 | # endif | |
865 | # endif | |
866 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
867 | # define getpagesize() _gl_getpagesize () | |
868 | # else | |
869 | # if !GNULIB_defined_getpagesize_function | |
870 | _GL_UNISTD_INLINE int | |
871 | getpagesize () | |
872 | { | |
873 | return _gl_getpagesize (); | |
874 | } | |
875 | # define GNULIB_defined_getpagesize_function 1 | |
876 | # endif | |
877 | # endif | |
878 | # endif | |
879 | # endif | |
880 | /* Need to cast, because on Cygwin 1.5.x systems, the return type is size_t. */ | |
881 | _GL_CXXALIAS_SYS_CAST (getpagesize, int, (void)); | |
882 | # endif | |
883 | # if @HAVE_DECL_GETPAGESIZE@ | |
884 | _GL_CXXALIASWARN (getpagesize); | |
885 | # endif | |
886 | #elif defined GNULIB_POSIXCHECK | |
887 | # undef getpagesize | |
888 | # if HAVE_RAW_DECL_GETPAGESIZE | |
889 | _GL_WARN_ON_USE (getpagesize, "getpagesize is unportable - " | |
890 | "use gnulib module getpagesize for portability"); | |
891 | # endif | |
892 | #endif | |
893 | ||
894 | ||
895 | #if @GNULIB_GETUSERSHELL@ | |
896 | /* Return the next valid login shell on the system, or NULL when the end of | |
897 | the list has been reached. */ | |
898 | # if !@HAVE_DECL_GETUSERSHELL@ | |
899 | _GL_FUNCDECL_SYS (getusershell, char *, (void)); | |
900 | # endif | |
901 | _GL_CXXALIAS_SYS (getusershell, char *, (void)); | |
902 | _GL_CXXALIASWARN (getusershell); | |
903 | #elif defined GNULIB_POSIXCHECK | |
904 | # undef getusershell | |
905 | # if HAVE_RAW_DECL_GETUSERSHELL | |
906 | _GL_WARN_ON_USE (getusershell, "getusershell is unportable - " | |
907 | "use gnulib module getusershell for portability"); | |
908 | # endif | |
909 | #endif | |
910 | ||
911 | #if @GNULIB_GETUSERSHELL@ | |
912 | /* Rewind to pointer that is advanced at each getusershell() call. */ | |
913 | # if !@HAVE_DECL_GETUSERSHELL@ | |
914 | _GL_FUNCDECL_SYS (setusershell, void, (void)); | |
915 | # endif | |
916 | _GL_CXXALIAS_SYS (setusershell, void, (void)); | |
917 | _GL_CXXALIASWARN (setusershell); | |
918 | #elif defined GNULIB_POSIXCHECK | |
919 | # undef setusershell | |
920 | # if HAVE_RAW_DECL_SETUSERSHELL | |
921 | _GL_WARN_ON_USE (setusershell, "setusershell is unportable - " | |
922 | "use gnulib module getusershell for portability"); | |
923 | # endif | |
924 | #endif | |
925 | ||
926 | #if @GNULIB_GETUSERSHELL@ | |
927 | /* Free the pointer that is advanced at each getusershell() call and | |
928 | associated resources. */ | |
929 | # if !@HAVE_DECL_GETUSERSHELL@ | |
930 | _GL_FUNCDECL_SYS (endusershell, void, (void)); | |
931 | # endif | |
932 | _GL_CXXALIAS_SYS (endusershell, void, (void)); | |
933 | _GL_CXXALIASWARN (endusershell); | |
934 | #elif defined GNULIB_POSIXCHECK | |
935 | # undef endusershell | |
936 | # if HAVE_RAW_DECL_ENDUSERSHELL | |
937 | _GL_WARN_ON_USE (endusershell, "endusershell is unportable - " | |
938 | "use gnulib module getusershell for portability"); | |
939 | # endif | |
940 | #endif | |
941 | ||
942 | ||
943 | #if @GNULIB_GROUP_MEMBER@ | |
944 | /* Determine whether group id is in calling user's group list. */ | |
945 | # if !@HAVE_GROUP_MEMBER@ | |
946 | _GL_FUNCDECL_SYS (group_member, int, (gid_t gid)); | |
947 | # endif | |
948 | _GL_CXXALIAS_SYS (group_member, int, (gid_t gid)); | |
949 | _GL_CXXALIASWARN (group_member); | |
950 | #elif defined GNULIB_POSIXCHECK | |
951 | # undef group_member | |
952 | # if HAVE_RAW_DECL_GROUP_MEMBER | |
953 | _GL_WARN_ON_USE (group_member, "group_member is unportable - " | |
954 | "use gnulib module group-member for portability"); | |
955 | # endif | |
956 | #endif | |
957 | ||
958 | ||
959 | #if @GNULIB_ISATTY@ | |
960 | # if @REPLACE_ISATTY@ | |
961 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
962 | # undef isatty | |
963 | # define isatty rpl_isatty | |
964 | # endif | |
965 | _GL_FUNCDECL_RPL (isatty, int, (int fd)); | |
966 | _GL_CXXALIAS_RPL (isatty, int, (int fd)); | |
967 | # else | |
968 | _GL_CXXALIAS_SYS (isatty, int, (int fd)); | |
969 | # endif | |
970 | _GL_CXXALIASWARN (isatty); | |
971 | #elif defined GNULIB_POSIXCHECK | |
972 | # undef isatty | |
973 | # if HAVE_RAW_DECL_ISATTY | |
974 | _GL_WARN_ON_USE (isatty, "isatty has portability problems on native Windows - " | |
975 | "use gnulib module isatty for portability"); | |
976 | # endif | |
977 | #endif | |
978 | ||
979 | ||
980 | #if @GNULIB_LCHOWN@ | |
981 | /* Change the owner of FILE to UID (if UID is not -1) and the group of FILE | |
982 | to GID (if GID is not -1). Do not follow symbolic links. | |
983 | Return 0 if successful, otherwise -1 and errno set. | |
984 | See the POSIX:2008 specification | |
985 | <http://pubs.opengroup.org/onlinepubs/9699919799/functions/lchown.html>. */ | |
986 | # if @REPLACE_LCHOWN@ | |
987 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
988 | # undef lchown | |
989 | # define lchown rpl_lchown | |
990 | # endif | |
991 | _GL_FUNCDECL_RPL (lchown, int, (char const *file, uid_t owner, gid_t group) | |
992 | _GL_ARG_NONNULL ((1))); | |
993 | _GL_CXXALIAS_RPL (lchown, int, (char const *file, uid_t owner, gid_t group)); | |
994 | # else | |
995 | # if !@HAVE_LCHOWN@ | |
996 | _GL_FUNCDECL_SYS (lchown, int, (char const *file, uid_t owner, gid_t group) | |
997 | _GL_ARG_NONNULL ((1))); | |
998 | # endif | |
999 | _GL_CXXALIAS_SYS (lchown, int, (char const *file, uid_t owner, gid_t group)); | |
1000 | # endif | |
1001 | _GL_CXXALIASWARN (lchown); | |
1002 | #elif defined GNULIB_POSIXCHECK | |
1003 | # undef lchown | |
1004 | # if HAVE_RAW_DECL_LCHOWN | |
1005 | _GL_WARN_ON_USE (lchown, "lchown is unportable to pre-POSIX.1-2001 systems - " | |
1006 | "use gnulib module lchown for portability"); | |
1007 | # endif | |
1008 | #endif | |
1009 | ||
1010 | ||
1011 | #if @GNULIB_LINK@ | |
1012 | /* Create a new hard link for an existing file. | |
1013 | Return 0 if successful, otherwise -1 and errno set. | |
1014 | See POSIX:2008 specification | |
1015 | <http://pubs.opengroup.org/onlinepubs/9699919799/functions/link.html>. */ | |
1016 | # if @REPLACE_LINK@ | |
1017 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
1018 | # define link rpl_link | |
1019 | # endif | |
1020 | _GL_FUNCDECL_RPL (link, int, (const char *path1, const char *path2) | |
1021 | _GL_ARG_NONNULL ((1, 2))); | |
1022 | _GL_CXXALIAS_RPL (link, int, (const char *path1, const char *path2)); | |
1023 | # else | |
1024 | # if !@HAVE_LINK@ | |
1025 | _GL_FUNCDECL_SYS (link, int, (const char *path1, const char *path2) | |
1026 | _GL_ARG_NONNULL ((1, 2))); | |
1027 | # endif | |
1028 | _GL_CXXALIAS_SYS (link, int, (const char *path1, const char *path2)); | |
1029 | # endif | |
1030 | _GL_CXXALIASWARN (link); | |
1031 | #elif defined GNULIB_POSIXCHECK | |
1032 | # undef link | |
1033 | # if HAVE_RAW_DECL_LINK | |
1034 | _GL_WARN_ON_USE (link, "link is unportable - " | |
1035 | "use gnulib module link for portability"); | |
1036 | # endif | |
1037 | #endif | |
1038 | ||
1039 | ||
1040 | #if @GNULIB_LINKAT@ | |
1041 | /* Create a new hard link for an existing file, relative to two | |
1042 | directories. FLAG controls whether symlinks are followed. | |
1043 | Return 0 if successful, otherwise -1 and errno set. */ | |
1044 | # if @REPLACE_LINKAT@ | |
1045 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
1046 | # undef linkat | |
1047 | # define linkat rpl_linkat | |
1048 | # endif | |
1049 | _GL_FUNCDECL_RPL (linkat, int, | |
1050 | (int fd1, const char *path1, int fd2, const char *path2, | |
1051 | int flag) | |
1052 | _GL_ARG_NONNULL ((2, 4))); | |
1053 | _GL_CXXALIAS_RPL (linkat, int, | |
1054 | (int fd1, const char *path1, int fd2, const char *path2, | |
1055 | int flag)); | |
1056 | # else | |
1057 | # if !@HAVE_LINKAT@ | |
1058 | _GL_FUNCDECL_SYS (linkat, int, | |
1059 | (int fd1, const char *path1, int fd2, const char *path2, | |
1060 | int flag) | |
1061 | _GL_ARG_NONNULL ((2, 4))); | |
1062 | # endif | |
1063 | _GL_CXXALIAS_SYS (linkat, int, | |
1064 | (int fd1, const char *path1, int fd2, const char *path2, | |
1065 | int flag)); | |
1066 | # endif | |
1067 | _GL_CXXALIASWARN (linkat); | |
1068 | #elif defined GNULIB_POSIXCHECK | |
1069 | # undef linkat | |
1070 | # if HAVE_RAW_DECL_LINKAT | |
1071 | _GL_WARN_ON_USE (linkat, "linkat is unportable - " | |
1072 | "use gnulib module linkat for portability"); | |
1073 | # endif | |
1074 | #endif | |
1075 | ||
1076 | ||
1077 | #if @GNULIB_LSEEK@ | |
1078 | /* Set the offset of FD relative to SEEK_SET, SEEK_CUR, or SEEK_END. | |
1079 | Return the new offset if successful, otherwise -1 and errno set. | |
1080 | See the POSIX:2008 specification | |
1081 | <http://pubs.opengroup.org/onlinepubs/9699919799/functions/lseek.html>. */ | |
1082 | # if @REPLACE_LSEEK@ | |
1083 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
1084 | # define lseek rpl_lseek | |
1085 | # endif | |
1086 | _GL_FUNCDECL_RPL (lseek, off_t, (int fd, off_t offset, int whence)); | |
1087 | _GL_CXXALIAS_RPL (lseek, off_t, (int fd, off_t offset, int whence)); | |
1088 | # else | |
1089 | _GL_CXXALIAS_SYS (lseek, off_t, (int fd, off_t offset, int whence)); | |
1090 | # endif | |
1091 | _GL_CXXALIASWARN (lseek); | |
1092 | #elif defined GNULIB_POSIXCHECK | |
1093 | # undef lseek | |
1094 | # if HAVE_RAW_DECL_LSEEK | |
1095 | _GL_WARN_ON_USE (lseek, "lseek does not fail with ESPIPE on pipes on some " | |
1096 | "systems - use gnulib module lseek for portability"); | |
1097 | # endif | |
1098 | #endif | |
1099 | ||
1100 | ||
1101 | #if @GNULIB_PIPE@ | |
1102 | /* Create a pipe, defaulting to O_BINARY mode. | |
1103 | Store the read-end as fd[0] and the write-end as fd[1]. | |
1104 | Return 0 upon success, or -1 with errno set upon failure. */ | |
1105 | # if !@HAVE_PIPE@ | |
1106 | _GL_FUNCDECL_SYS (pipe, int, (int fd[2]) _GL_ARG_NONNULL ((1))); | |
1107 | # endif | |
1108 | _GL_CXXALIAS_SYS (pipe, int, (int fd[2])); | |
1109 | _GL_CXXALIASWARN (pipe); | |
1110 | #elif defined GNULIB_POSIXCHECK | |
1111 | # undef pipe | |
1112 | # if HAVE_RAW_DECL_PIPE | |
1113 | _GL_WARN_ON_USE (pipe, "pipe is unportable - " | |
1114 | "use gnulib module pipe-posix for portability"); | |
1115 | # endif | |
1116 | #endif | |
1117 | ||
1118 | ||
1119 | #if @GNULIB_PIPE2@ | |
1120 | /* Create a pipe, applying the given flags when opening the read-end of the | |
1121 | pipe and the write-end of the pipe. | |
1122 | The flags are a bitmask, possibly including O_CLOEXEC (defined in <fcntl.h>) | |
1123 | and O_TEXT, O_BINARY (defined in "binary-io.h"). | |
1124 | Store the read-end as fd[0] and the write-end as fd[1]. | |
1125 | Return 0 upon success, or -1 with errno set upon failure. | |
1126 | See also the Linux man page at | |
1127 | <http://www.kernel.org/doc/man-pages/online/pages/man2/pipe2.2.html>. */ | |
1128 | # if @HAVE_PIPE2@ | |
1129 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
1130 | # define pipe2 rpl_pipe2 | |
1131 | # endif | |
1132 | _GL_FUNCDECL_RPL (pipe2, int, (int fd[2], int flags) _GL_ARG_NONNULL ((1))); | |
1133 | _GL_CXXALIAS_RPL (pipe2, int, (int fd[2], int flags)); | |
1134 | # else | |
1135 | _GL_FUNCDECL_SYS (pipe2, int, (int fd[2], int flags) _GL_ARG_NONNULL ((1))); | |
1136 | _GL_CXXALIAS_SYS (pipe2, int, (int fd[2], int flags)); | |
1137 | # endif | |
1138 | _GL_CXXALIASWARN (pipe2); | |
1139 | #elif defined GNULIB_POSIXCHECK | |
1140 | # undef pipe2 | |
1141 | # if HAVE_RAW_DECL_PIPE2 | |
1142 | _GL_WARN_ON_USE (pipe2, "pipe2 is unportable - " | |
1143 | "use gnulib module pipe2 for portability"); | |
1144 | # endif | |
1145 | #endif | |
1146 | ||
1147 | ||
1148 | #if @GNULIB_PREAD@ | |
1149 | /* Read at most BUFSIZE bytes from FD into BUF, starting at OFFSET. | |
1150 | Return the number of bytes placed into BUF if successful, otherwise | |
1151 | set errno and return -1. 0 indicates EOF. | |
1152 | See the POSIX:2008 specification | |
1153 | <http://pubs.opengroup.org/onlinepubs/9699919799/functions/pread.html>. */ | |
1154 | # if @REPLACE_PREAD@ | |
1155 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
1156 | # undef pread | |
1157 | # define pread rpl_pread | |
1158 | # endif | |
1159 | _GL_FUNCDECL_RPL (pread, ssize_t, | |
1160 | (int fd, void *buf, size_t bufsize, off_t offset) | |
1161 | _GL_ARG_NONNULL ((2))); | |
1162 | _GL_CXXALIAS_RPL (pread, ssize_t, | |
1163 | (int fd, void *buf, size_t bufsize, off_t offset)); | |
1164 | # else | |
1165 | # if !@HAVE_PREAD@ | |
1166 | _GL_FUNCDECL_SYS (pread, ssize_t, | |
1167 | (int fd, void *buf, size_t bufsize, off_t offset) | |
1168 | _GL_ARG_NONNULL ((2))); | |
1169 | # endif | |
1170 | _GL_CXXALIAS_SYS (pread, ssize_t, | |
1171 | (int fd, void *buf, size_t bufsize, off_t offset)); | |
1172 | # endif | |
1173 | _GL_CXXALIASWARN (pread); | |
1174 | #elif defined GNULIB_POSIXCHECK | |
1175 | # undef pread | |
1176 | # if HAVE_RAW_DECL_PREAD | |
1177 | _GL_WARN_ON_USE (pread, "pread is unportable - " | |
1178 | "use gnulib module pread for portability"); | |
1179 | # endif | |
1180 | #endif | |
1181 | ||
1182 | ||
1183 | #if @GNULIB_PWRITE@ | |
1184 | /* Write at most BUFSIZE bytes from BUF into FD, starting at OFFSET. | |
1185 | Return the number of bytes written if successful, otherwise | |
1186 | set errno and return -1. 0 indicates nothing written. See the | |
1187 | POSIX:2008 specification | |
1188 | <http://pubs.opengroup.org/onlinepubs/9699919799/functions/pwrite.html>. */ | |
1189 | # if @REPLACE_PWRITE@ | |
1190 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
1191 | # undef pwrite | |
1192 | # define pwrite rpl_pwrite | |
1193 | # endif | |
1194 | _GL_FUNCDECL_RPL (pwrite, ssize_t, | |
1195 | (int fd, const void *buf, size_t bufsize, off_t offset) | |
1196 | _GL_ARG_NONNULL ((2))); | |
1197 | _GL_CXXALIAS_RPL (pwrite, ssize_t, | |
1198 | (int fd, const void *buf, size_t bufsize, off_t offset)); | |
1199 | # else | |
1200 | # if !@HAVE_PWRITE@ | |
1201 | _GL_FUNCDECL_SYS (pwrite, ssize_t, | |
1202 | (int fd, const void *buf, size_t bufsize, off_t offset) | |
1203 | _GL_ARG_NONNULL ((2))); | |
1204 | # endif | |
1205 | _GL_CXXALIAS_SYS (pwrite, ssize_t, | |
1206 | (int fd, const void *buf, size_t bufsize, off_t offset)); | |
1207 | # endif | |
1208 | _GL_CXXALIASWARN (pwrite); | |
1209 | #elif defined GNULIB_POSIXCHECK | |
1210 | # undef pwrite | |
1211 | # if HAVE_RAW_DECL_PWRITE | |
1212 | _GL_WARN_ON_USE (pwrite, "pwrite is unportable - " | |
1213 | "use gnulib module pwrite for portability"); | |
1214 | # endif | |
1215 | #endif | |
1216 | ||
1217 | ||
1218 | #if @GNULIB_READ@ | |
1219 | /* Read up to COUNT bytes from file descriptor FD into the buffer starting | |
1220 | at BUF. See the POSIX:2008 specification | |
1221 | <http://pubs.opengroup.org/onlinepubs/9699919799/functions/read.html>. */ | |
1222 | # if @REPLACE_READ@ | |
1223 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
1224 | # undef read | |
1225 | # define read rpl_read | |
1226 | # endif | |
1227 | _GL_FUNCDECL_RPL (read, ssize_t, (int fd, void *buf, size_t count) | |
1228 | _GL_ARG_NONNULL ((2))); | |
1229 | _GL_CXXALIAS_RPL (read, ssize_t, (int fd, void *buf, size_t count)); | |
1230 | # else | |
1231 | /* Need to cast, because on mingw, the third parameter is | |
1232 | unsigned int count | |
1233 | and the return type is 'int'. */ | |
1234 | _GL_CXXALIAS_SYS_CAST (read, ssize_t, (int fd, void *buf, size_t count)); | |
1235 | # endif | |
1236 | _GL_CXXALIASWARN (read); | |
1237 | #endif | |
1238 | ||
1239 | ||
1240 | #if @GNULIB_READLINK@ | |
1241 | /* Read the contents of the symbolic link FILE and place the first BUFSIZE | |
1242 | bytes of it into BUF. Return the number of bytes placed into BUF if | |
1243 | successful, otherwise -1 and errno set. | |
1244 | See the POSIX:2008 specification | |
1245 | <http://pubs.opengroup.org/onlinepubs/9699919799/functions/readlink.html>. */ | |
1246 | # if @REPLACE_READLINK@ | |
1247 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
1248 | # define readlink rpl_readlink | |
1249 | # endif | |
1250 | _GL_FUNCDECL_RPL (readlink, ssize_t, | |
1251 | (const char *file, char *buf, size_t bufsize) | |
1252 | _GL_ARG_NONNULL ((1, 2))); | |
1253 | _GL_CXXALIAS_RPL (readlink, ssize_t, | |
1254 | (const char *file, char *buf, size_t bufsize)); | |
1255 | # else | |
1256 | # if !@HAVE_READLINK@ | |
1257 | _GL_FUNCDECL_SYS (readlink, ssize_t, | |
1258 | (const char *file, char *buf, size_t bufsize) | |
1259 | _GL_ARG_NONNULL ((1, 2))); | |
1260 | # endif | |
1261 | _GL_CXXALIAS_SYS (readlink, ssize_t, | |
1262 | (const char *file, char *buf, size_t bufsize)); | |
1263 | # endif | |
1264 | _GL_CXXALIASWARN (readlink); | |
1265 | #elif defined GNULIB_POSIXCHECK | |
1266 | # undef readlink | |
1267 | # if HAVE_RAW_DECL_READLINK | |
1268 | _GL_WARN_ON_USE (readlink, "readlink is unportable - " | |
1269 | "use gnulib module readlink for portability"); | |
1270 | # endif | |
1271 | #endif | |
1272 | ||
1273 | ||
1274 | #if @GNULIB_READLINKAT@ | |
1275 | # if !@HAVE_READLINKAT@ | |
1276 | _GL_FUNCDECL_SYS (readlinkat, ssize_t, | |
1277 | (int fd, char const *file, char *buf, size_t len) | |
1278 | _GL_ARG_NONNULL ((2, 3))); | |
1279 | # endif | |
1280 | _GL_CXXALIAS_SYS (readlinkat, ssize_t, | |
1281 | (int fd, char const *file, char *buf, size_t len)); | |
1282 | _GL_CXXALIASWARN (readlinkat); | |
1283 | #elif defined GNULIB_POSIXCHECK | |
1284 | # undef readlinkat | |
1285 | # if HAVE_RAW_DECL_READLINKAT | |
1286 | _GL_WARN_ON_USE (readlinkat, "readlinkat is not portable - " | |
1287 | "use gnulib module readlinkat for portability"); | |
1288 | # endif | |
1289 | #endif | |
1290 | ||
1291 | ||
1292 | #if @GNULIB_RMDIR@ | |
1293 | /* Remove the directory DIR. */ | |
1294 | # if @REPLACE_RMDIR@ | |
1295 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
1296 | # define rmdir rpl_rmdir | |
1297 | # endif | |
1298 | _GL_FUNCDECL_RPL (rmdir, int, (char const *name) _GL_ARG_NONNULL ((1))); | |
1299 | _GL_CXXALIAS_RPL (rmdir, int, (char const *name)); | |
1300 | # else | |
1301 | _GL_CXXALIAS_SYS (rmdir, int, (char const *name)); | |
1302 | # endif | |
1303 | _GL_CXXALIASWARN (rmdir); | |
1304 | #elif defined GNULIB_POSIXCHECK | |
1305 | # undef rmdir | |
1306 | # if HAVE_RAW_DECL_RMDIR | |
1307 | _GL_WARN_ON_USE (rmdir, "rmdir is unportable - " | |
1308 | "use gnulib module rmdir for portability"); | |
1309 | # endif | |
1310 | #endif | |
1311 | ||
1312 | ||
1313 | #if @GNULIB_SETHOSTNAME@ | |
1314 | /* Set the host name of the machine. | |
1315 | The host name may or may not be fully qualified. | |
1316 | ||
1317 | Put LEN bytes of NAME into the host name. | |
1318 | Return 0 if successful, otherwise, set errno and return -1. | |
1319 | ||
1320 | Platforms with no ability to set the hostname return -1 and set | |
1321 | errno = ENOSYS. */ | |
1322 | # if !@HAVE_SETHOSTNAME@ || !@HAVE_DECL_SETHOSTNAME@ | |
1323 | _GL_FUNCDECL_SYS (sethostname, int, (const char *name, size_t len) | |
1324 | _GL_ARG_NONNULL ((1))); | |
1325 | # endif | |
1326 | /* Need to cast, because on Solaris 11 2011-10, Mac OS X 10.5, IRIX 6.5 | |
1327 | and FreeBSD 6.4 the second parameter is int. On Solaris 11 | |
1328 | 2011-10, the first parameter is not const. */ | |
1329 | _GL_CXXALIAS_SYS_CAST (sethostname, int, (const char *name, size_t len)); | |
1330 | _GL_CXXALIASWARN (sethostname); | |
1331 | #elif defined GNULIB_POSIXCHECK | |
1332 | # undef sethostname | |
1333 | # if HAVE_RAW_DECL_SETHOSTNAME | |
1334 | _GL_WARN_ON_USE (sethostname, "sethostname is unportable - " | |
1335 | "use gnulib module sethostname for portability"); | |
1336 | # endif | |
1337 | #endif | |
1338 | ||
1339 | ||
1340 | #if @GNULIB_SLEEP@ | |
1341 | /* Pause the execution of the current thread for N seconds. | |
1342 | Returns the number of seconds left to sleep. | |
1343 | See the POSIX:2008 specification | |
1344 | <http://pubs.opengroup.org/onlinepubs/9699919799/functions/sleep.html>. */ | |
1345 | # if @REPLACE_SLEEP@ | |
1346 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
1347 | # undef sleep | |
1348 | # define sleep rpl_sleep | |
1349 | # endif | |
1350 | _GL_FUNCDECL_RPL (sleep, unsigned int, (unsigned int n)); | |
1351 | _GL_CXXALIAS_RPL (sleep, unsigned int, (unsigned int n)); | |
1352 | # else | |
1353 | # if !@HAVE_SLEEP@ | |
1354 | _GL_FUNCDECL_SYS (sleep, unsigned int, (unsigned int n)); | |
1355 | # endif | |
1356 | _GL_CXXALIAS_SYS (sleep, unsigned int, (unsigned int n)); | |
1357 | # endif | |
1358 | _GL_CXXALIASWARN (sleep); | |
1359 | #elif defined GNULIB_POSIXCHECK | |
1360 | # undef sleep | |
1361 | # if HAVE_RAW_DECL_SLEEP | |
1362 | _GL_WARN_ON_USE (sleep, "sleep is unportable - " | |
1363 | "use gnulib module sleep for portability"); | |
1364 | # endif | |
1365 | #endif | |
1366 | ||
1367 | ||
1368 | #if @GNULIB_SYMLINK@ | |
1369 | # if @REPLACE_SYMLINK@ | |
1370 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
1371 | # undef symlink | |
1372 | # define symlink rpl_symlink | |
1373 | # endif | |
1374 | _GL_FUNCDECL_RPL (symlink, int, (char const *contents, char const *file) | |
1375 | _GL_ARG_NONNULL ((1, 2))); | |
1376 | _GL_CXXALIAS_RPL (symlink, int, (char const *contents, char const *file)); | |
1377 | # else | |
1378 | # if !@HAVE_SYMLINK@ | |
1379 | _GL_FUNCDECL_SYS (symlink, int, (char const *contents, char const *file) | |
1380 | _GL_ARG_NONNULL ((1, 2))); | |
1381 | # endif | |
1382 | _GL_CXXALIAS_SYS (symlink, int, (char const *contents, char const *file)); | |
1383 | # endif | |
1384 | _GL_CXXALIASWARN (symlink); | |
1385 | #elif defined GNULIB_POSIXCHECK | |
1386 | # undef symlink | |
1387 | # if HAVE_RAW_DECL_SYMLINK | |
1388 | _GL_WARN_ON_USE (symlink, "symlink is not portable - " | |
1389 | "use gnulib module symlink for portability"); | |
1390 | # endif | |
1391 | #endif | |
1392 | ||
1393 | ||
1394 | #if @GNULIB_SYMLINKAT@ | |
1395 | # if !@HAVE_SYMLINKAT@ | |
1396 | _GL_FUNCDECL_SYS (symlinkat, int, | |
1397 | (char const *contents, int fd, char const *file) | |
1398 | _GL_ARG_NONNULL ((1, 3))); | |
1399 | # endif | |
1400 | _GL_CXXALIAS_SYS (symlinkat, int, | |
1401 | (char const *contents, int fd, char const *file)); | |
1402 | _GL_CXXALIASWARN (symlinkat); | |
1403 | #elif defined GNULIB_POSIXCHECK | |
1404 | # undef symlinkat | |
1405 | # if HAVE_RAW_DECL_SYMLINKAT | |
1406 | _GL_WARN_ON_USE (symlinkat, "symlinkat is not portable - " | |
1407 | "use gnulib module symlinkat for portability"); | |
1408 | # endif | |
1409 | #endif | |
1410 | ||
1411 | ||
1412 | #if @GNULIB_TTYNAME_R@ | |
1413 | /* Store at most BUFLEN characters of the pathname of the terminal FD is | |
1414 | open on in BUF. Return 0 on success, otherwise an error number. */ | |
1415 | # if @REPLACE_TTYNAME_R@ | |
1416 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
1417 | # undef ttyname_r | |
1418 | # define ttyname_r rpl_ttyname_r | |
1419 | # endif | |
1420 | _GL_FUNCDECL_RPL (ttyname_r, int, | |
1421 | (int fd, char *buf, size_t buflen) _GL_ARG_NONNULL ((2))); | |
1422 | _GL_CXXALIAS_RPL (ttyname_r, int, | |
1423 | (int fd, char *buf, size_t buflen)); | |
1424 | # else | |
1425 | # if !@HAVE_DECL_TTYNAME_R@ | |
1426 | _GL_FUNCDECL_SYS (ttyname_r, int, | |
1427 | (int fd, char *buf, size_t buflen) _GL_ARG_NONNULL ((2))); | |
1428 | # endif | |
1429 | _GL_CXXALIAS_SYS (ttyname_r, int, | |
1430 | (int fd, char *buf, size_t buflen)); | |
1431 | # endif | |
1432 | _GL_CXXALIASWARN (ttyname_r); | |
1433 | #elif defined GNULIB_POSIXCHECK | |
1434 | # undef ttyname_r | |
1435 | # if HAVE_RAW_DECL_TTYNAME_R | |
1436 | _GL_WARN_ON_USE (ttyname_r, "ttyname_r is not portable - " | |
1437 | "use gnulib module ttyname_r for portability"); | |
1438 | # endif | |
1439 | #endif | |
1440 | ||
1441 | ||
1442 | #if @GNULIB_UNLINK@ | |
1443 | # if @REPLACE_UNLINK@ | |
1444 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
1445 | # undef unlink | |
1446 | # define unlink rpl_unlink | |
1447 | # endif | |
1448 | _GL_FUNCDECL_RPL (unlink, int, (char const *file) _GL_ARG_NONNULL ((1))); | |
1449 | _GL_CXXALIAS_RPL (unlink, int, (char const *file)); | |
1450 | # else | |
1451 | _GL_CXXALIAS_SYS (unlink, int, (char const *file)); | |
1452 | # endif | |
1453 | _GL_CXXALIASWARN (unlink); | |
1454 | #elif defined GNULIB_POSIXCHECK | |
1455 | # undef unlink | |
1456 | # if HAVE_RAW_DECL_UNLINK | |
1457 | _GL_WARN_ON_USE (unlink, "unlink is not portable - " | |
1458 | "use gnulib module unlink for portability"); | |
1459 | # endif | |
1460 | #endif | |
1461 | ||
1462 | ||
1463 | #if @GNULIB_UNLINKAT@ | |
1464 | # if @REPLACE_UNLINKAT@ | |
1465 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
1466 | # undef unlinkat | |
1467 | # define unlinkat rpl_unlinkat | |
1468 | # endif | |
1469 | _GL_FUNCDECL_RPL (unlinkat, int, (int fd, char const *file, int flag) | |
1470 | _GL_ARG_NONNULL ((2))); | |
1471 | _GL_CXXALIAS_RPL (unlinkat, int, (int fd, char const *file, int flag)); | |
1472 | # else | |
1473 | # if !@HAVE_UNLINKAT@ | |
1474 | _GL_FUNCDECL_SYS (unlinkat, int, (int fd, char const *file, int flag) | |
1475 | _GL_ARG_NONNULL ((2))); | |
1476 | # endif | |
1477 | _GL_CXXALIAS_SYS (unlinkat, int, (int fd, char const *file, int flag)); | |
1478 | # endif | |
1479 | _GL_CXXALIASWARN (unlinkat); | |
1480 | #elif defined GNULIB_POSIXCHECK | |
1481 | # undef unlinkat | |
1482 | # if HAVE_RAW_DECL_UNLINKAT | |
1483 | _GL_WARN_ON_USE (unlinkat, "unlinkat is not portable - " | |
1484 | "use gnulib module openat for portability"); | |
1485 | # endif | |
1486 | #endif | |
1487 | ||
1488 | ||
1489 | #if @GNULIB_USLEEP@ | |
1490 | /* Pause the execution of the current thread for N microseconds. | |
1491 | Returns 0 on completion, or -1 on range error. | |
1492 | See the POSIX:2001 specification | |
1493 | <http://www.opengroup.org/susv3xsh/usleep.html>. */ | |
1494 | # if @REPLACE_USLEEP@ | |
1495 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
1496 | # undef usleep | |
1497 | # define usleep rpl_usleep | |
1498 | # endif | |
1499 | _GL_FUNCDECL_RPL (usleep, int, (useconds_t n)); | |
1500 | _GL_CXXALIAS_RPL (usleep, int, (useconds_t n)); | |
1501 | # else | |
1502 | # if !@HAVE_USLEEP@ | |
1503 | _GL_FUNCDECL_SYS (usleep, int, (useconds_t n)); | |
1504 | # endif | |
1505 | _GL_CXXALIAS_SYS (usleep, int, (useconds_t n)); | |
1506 | # endif | |
1507 | _GL_CXXALIASWARN (usleep); | |
1508 | #elif defined GNULIB_POSIXCHECK | |
1509 | # undef usleep | |
1510 | # if HAVE_RAW_DECL_USLEEP | |
1511 | _GL_WARN_ON_USE (usleep, "usleep is unportable - " | |
1512 | "use gnulib module usleep for portability"); | |
1513 | # endif | |
1514 | #endif | |
1515 | ||
1516 | ||
1517 | #if @GNULIB_WRITE@ | |
1518 | /* Write up to COUNT bytes starting at BUF to file descriptor FD. | |
1519 | See the POSIX:2008 specification | |
1520 | <http://pubs.opengroup.org/onlinepubs/9699919799/functions/write.html>. */ | |
1521 | # if @REPLACE_WRITE@ | |
1522 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
1523 | # undef write | |
1524 | # define write rpl_write | |
1525 | # endif | |
1526 | _GL_FUNCDECL_RPL (write, ssize_t, (int fd, const void *buf, size_t count) | |
1527 | _GL_ARG_NONNULL ((2))); | |
1528 | _GL_CXXALIAS_RPL (write, ssize_t, (int fd, const void *buf, size_t count)); | |
1529 | # else | |
1530 | /* Need to cast, because on mingw, the third parameter is | |
1531 | unsigned int count | |
1532 | and the return type is 'int'. */ | |
1533 | _GL_CXXALIAS_SYS_CAST (write, ssize_t, (int fd, const void *buf, size_t count)); | |
1534 | # endif | |
1535 | _GL_CXXALIASWARN (write); | |
1536 | #endif | |
1537 | ||
1538 | _GL_INLINE_HEADER_END | |
1539 | ||
1540 | #endif /* _@GUARD_PREFIX@_UNISTD_H */ | |
1541 | #endif /* _@GUARD_PREFIX@_UNISTD_H */ |