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* test/automated/undo-tests.el (undo-test0): Adjust error to code change.
[bpt/emacs.git] / lib / unistd.in.h
CommitLineData
e275c824 1/* Substitute for and wrapper around <unistd.h>.
9ff99d22 2 Copyright (C) 2003-2013 Free Software Foundation, Inc.
e275c824
PE		 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
caf8a9b2 15 along with this program; if not, see <http://www.gnu.org/licenses/>. */
e275c824
PE		 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@ \
e765a388 27 && !defined _GL_WINSOCK2_H_WITNESS && defined _WINSOCK2_H
e275c824
PE		 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
e765a388 35# define _GL_WINSOCK2_H_WITNESS
e275c824
PE		 36
37/* Normal invocation. */
6a3e57bb 38#elif !defined _@GUARD_PREFIX@_UNISTD_H
e275c824
PE		 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@ \
e765a388
PE		 47 && !defined _GL_INCLUDING_WINSOCK2_H
48# define _GL_INCLUDING_WINSOCK2_H
e275c824 49# include <winsock2.h>
e765a388 50# undef _GL_INCLUDING_WINSOCK2_H
e275c824
PE		 51#endif
52
6a3e57bb
PE		 53#if !defined _@GUARD_PREFIX@_UNISTD_H && !defined _GL_INCLUDING_WINSOCK2_H
54#define _@GUARD_PREFIX@_UNISTD_H
e275c824
PE		 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>. */
316f8af0
PE		 77/* mingw, MSVC, BeOS, Haiku declare environ in <stdlib.h>, not in
78 <unistd.h>. */
e275c824
PE		 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
316f8af0 85/* Native Windows platforms declare chdir, getcwd, rmdir in
caf8a9b2
PE		 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>. */
316f8af0
PE		 89#if ((@GNULIB_CHDIR@ || @GNULIB_GETCWD@ || @GNULIB_RMDIR@ \
90 || defined GNULIB_POSIXCHECK) \
e275c824 91 && ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__))
7f59d9c8 92# include <io.h> /* mingw32, mingw64 */
316f8af0 93# include <direct.h> /* mingw64, MSVC 9 */
caf8a9b2
PE		 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>
e275c824
PE		 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
caf8a9b2
PE		 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@
316f8af0
PE		 113/* Get off_t. */
114# include <sys/types.h>
115#endif
116
cc2e7b46
PE		 117#if (@GNULIB_READ@ || @GNULIB_WRITE@ \
118 || @GNULIB_READLINK@ || @GNULIB_READLINKAT@ \
e275c824
PE		 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
f64898ab
PE		 130_GL_INLINE_HEADER_BEGIN
131#ifndef _GL_UNISTD_INLINE
132# define _GL_UNISTD_INLINE _GL_INLINE
133#endif
134
e275c824
PE		 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
4a621aae
PE		 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>");
e275c824 204# endif
4a621aae
PE		 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>");
e275c824
PE		 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
316f8af0
PE		 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
e275c824
PE		 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.
316f8af0
PE		 264 See the POSIX:2008 specification
265 <http://pubs.opengroup.org/onlinepubs/9699919799/functions/chown.html. */
e275c824
PE		 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
316f8af0
PE		 316#if @GNULIB_DUP@
317# if @REPLACE_DUP@
318# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
319# define dup rpl_dup
320# endif
e275c824
PE		 321_GL_FUNCDECL_RPL (dup, int, (int oldfd));
322_GL_CXXALIAS_RPL (dup, int, (int oldfd));
316f8af0 323# else
e275c824 324_GL_CXXALIAS_SYS (dup, int, (int oldfd));
316f8af0 325# endif
e275c824 326_GL_CXXALIASWARN (dup);
316f8af0
PE		 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
e275c824
PE		 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.
316f8af0
PE		 340 See the POSIX:2008 specification
341 <http://pubs.opengroup.org/onlinepubs/9699919799/functions/dup2.html>. */
e275c824
PE		 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
402extern "C" {
403# endif
404extern char **environ;
405# ifdef __cplusplus
406}
407# endif
408# endif
409# endif
410#elif defined GNULIB_POSIXCHECK
411# if HAVE_RAW_DECL_ENVIRON
f64898ab 412_GL_UNISTD_INLINE char ***
e275c824
PE		 413rpl_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.
316f8af0
PE		 470 See the POSIX:2008 specification
471 <http://pubs.opengroup.org/onlinepubs/9699919799/functions/fchdir.html>. */
e275c824
PE		 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
316f8af0 528#if @GNULIB_FDATASYNC@
e275c824
PE		 529/* Synchronize changes to a file.
530 Return 0 if successful, otherwise -1 and errno set.
316f8af0
PE		 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>. */
e275c824
PE		 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.
316f8af0
PE		 569 See the POSIX:2008 specification
570 <http://pubs.opengroup.org/onlinepubs/9699919799/functions/ftruncate.html>. */
caf8a9b2
PE		 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@
e275c824 580_GL_FUNCDECL_SYS (ftruncate, int, (int fd, off_t length));
caf8a9b2 581# endif
e275c824 582_GL_CXXALIAS_SYS (ftruncate, int, (int fd, off_t length));
caf8a9b2 583# endif
e275c824
PE		 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.
316f8af0
PE		 599 See the POSIX:2008 specification
600 <http://pubs.opengroup.org/onlinepubs/9699919799/functions/getcwd.html>.
e275c824
PE		 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
59578570 869# if !GNULIB_defined_getpagesize_function
f64898ab 870_GL_UNISTD_INLINE int
e275c824
PE		 871getpagesize ()
872{
873 return _gl_getpagesize ();
874}
59578570
PE		 875# define GNULIB_defined_getpagesize_function 1
876# endif
e275c824
PE		 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
1fc5f204
PE		 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
caf8a9b2
PE		 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
e275c824
PE		 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.
316f8af0
PE		 984 See the POSIX:2008 specification
985 <http://pubs.opengroup.org/onlinepubs/9699919799/functions/lchown.html>. */
e275c824
PE		 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.
316f8af0
PE		 1014 See POSIX:2008 specification
1015 <http://pubs.opengroup.org/onlinepubs/9699919799/functions/link.html>. */
e275c824
PE		 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.
316f8af0
PE		 1080 See the POSIX:2008 specification
1081 <http://pubs.opengroup.org/onlinepubs/9699919799/functions/lseek.html>. */
e275c824
PE		 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
316f8af0
PE		 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>. */
e275c824
PE		 1154# if @REPLACE_PREAD@
1155# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
add3f049 1156# undef pread
e275c824
PE		 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
316f8af0
PE		 1187 POSIX:2008 specification
1188 <http://pubs.opengroup.org/onlinepubs/9699919799/functions/pwrite.html>. */
e275c824
PE		 1189# if @REPLACE_PWRITE@
1190# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
add3f049 1191# undef pwrite
e275c824
PE		 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
cc2e7b46
PE		 1218#if @GNULIB_READ@
1219/* Read up to COUNT bytes from file descriptor FD into the buffer starting
316f8af0
PE		 1220 at BUF. See the POSIX:2008 specification
1221 <http://pubs.opengroup.org/onlinepubs/9699919799/functions/read.html>. */
1222# if @REPLACE_READ@
cc2e7b46
PE		 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
e275c824
PE		 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.
316f8af0
PE		 1244 See the POSIX:2008 specification
1245 <http://pubs.opengroup.org/onlinepubs/9699919799/functions/readlink.html>. */
e275c824
PE		 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
caf8a9b2
PE		 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
05730648 1326/* Need to cast, because on Solaris 11 2011-10, Mac OS X 10.5, IRIX 6.5
caf8a9b2
PE		 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
e275c824
PE		 1340#if @GNULIB_SLEEP@
1341/* Pause the execution of the current thread for N seconds.
1342 Returns the number of seconds left to sleep.
316f8af0
PE		 1343 See the POSIX:2008 specification
1344 <http://pubs.opengroup.org/onlinepubs/9699919799/functions/sleep.html>. */
e275c824
PE		 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
316f8af0 1493 <http://www.opengroup.org/susv3xsh/usleep.html>. */
e275c824
PE		 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.
316f8af0
PE		 1519 See the POSIX:2008 specification
1520 <http://pubs.opengroup.org/onlinepubs/9699919799/functions/write.html>. */
1521# if @REPLACE_WRITE@
e275c824
PE		 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
f64898ab 1538_GL_INLINE_HEADER_END
e275c824 1539
6a3e57bb
PE		 1540#endif /* _@GUARD_PREFIX@_UNISTD_H */
1541#endif /* _@GUARD_PREFIX@_UNISTD_H */
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