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Warn if add-symbol-file does not provide any symbols
[deliverable/binutils-gdb.git] / gdb / gnulib / import / unistd.in.h
CommitLineData
8839a007 1/* Substitute for and wrapper around <unistd.h>.
5e8754f9 2 Copyright (C) 2003-2016 Free Software Foundation, Inc.
8839a007
PA		 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
5e8754f9 15 along with this program; if not, see <http://www.gnu.org/licenses/>. */
8839a007 16
4a626d0a
PA		 17#ifndef _@GUARD_PREFIX@_UNISTD_H
18
8839a007
PA		 19#if __GNUC__ >= 3
20@PRAGMA_SYSTEM_HEADER@
21#endif
22@PRAGMA_COLUMNS@
23
4a626d0a 24#ifdef _GL_INCLUDING_UNISTD_H
8839a007 25/* Special invocation convention:
4a626d0a
PA		 26 - On Mac OS X 10.3.9 we have a sequence of nested includes
27 <unistd.h> -> <signal.h> -> <pthread.h> -> <unistd.h>
28 In this situation, the functions are not yet declared, therefore we cannot
29 provide the C++ aliases. */
8839a007 30
4a626d0a
PA		 31#@INCLUDE_NEXT@ @NEXT_UNISTD_H@
32
33#else
34/* Normal invocation convention. */
8839a007
PA		 35
36/* The include_next requires a split double-inclusion guard. */
37#if @HAVE_UNISTD_H@
4a626d0a 38# define _GL_INCLUDING_UNISTD_H
8839a007 39# @INCLUDE_NEXT@ @NEXT_UNISTD_H@
4a626d0a 40# undef _GL_INCLUDING_UNISTD_H
8839a007
PA		 41#endif
42
43/* Get all possible declarations of gethostname(). */
44#if @GNULIB_GETHOSTNAME@ && @UNISTD_H_HAVE_WINSOCK2_H@ \
45 && !defined _GL_INCLUDING_WINSOCK2_H
46# define _GL_INCLUDING_WINSOCK2_H
47# include <winsock2.h>
48# undef _GL_INCLUDING_WINSOCK2_H
49#endif
50
51#if !defined _@GUARD_PREFIX@_UNISTD_H && !defined _GL_INCLUDING_WINSOCK2_H
52#define _@GUARD_PREFIX@_UNISTD_H
53
54/* NetBSD 5.0 mis-defines NULL. Also get size_t. */
55#include <stddef.h>
56
57/* mingw doesn't define the SEEK_* or *_FILENO macros in <unistd.h>. */
58/* Cygwin 1.7.1 declares symlinkat in <stdio.h>, not in <unistd.h>. */
59/* But avoid namespace pollution on glibc systems. */
60#if (!(defined SEEK_CUR && defined SEEK_END && defined SEEK_SET) \
61 || ((@GNULIB_SYMLINKAT@ || defined GNULIB_POSIXCHECK) \
62 && defined __CYGWIN__)) \
63 && ! defined __GLIBC__
64# include <stdio.h>
65#endif
66
67/* Cygwin 1.7.1 declares unlinkat in <fcntl.h>, not in <unistd.h>. */
68/* But avoid namespace pollution on glibc systems. */
69#if (@GNULIB_UNLINKAT@ || defined GNULIB_POSIXCHECK) && defined __CYGWIN__ \
70 && ! defined __GLIBC__
71# include <fcntl.h>
72#endif
73
74/* mingw fails to declare _exit in <unistd.h>. */
75/* mingw, MSVC, BeOS, Haiku declare environ in <stdlib.h>, not in
76 <unistd.h>. */
77/* Solaris declares getcwd not only in <unistd.h> but also in <stdlib.h>. */
4a626d0a
PA		 78/* OSF Tru64 Unix cannot see gnulib rpl_strtod when system <stdlib.h> is
79 included here. */
8839a007 80/* But avoid namespace pollution on glibc systems. */
4a626d0a
PA		 81#if !defined __GLIBC__ && !defined __osf__
82# define __need_system_stdlib_h
8839a007 83# include <stdlib.h>
4a626d0a 84# undef __need_system_stdlib_h
8839a007
PA		 85#endif
86
87/* Native Windows platforms declare chdir, getcwd, rmdir in
88 <io.h> and/or <direct.h>, not in <unistd.h>.
89 They also declare access(), chmod(), close(), dup(), dup2(), isatty(),
90 lseek(), read(), unlink(), write() in <io.h>. */
91#if ((@GNULIB_CHDIR@ || @GNULIB_GETCWD@ || @GNULIB_RMDIR@ \
92 || defined GNULIB_POSIXCHECK) \
5e8754f9 93 && ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__))
8839a007
PA		 94# include <io.h> /* mingw32, mingw64 */
95# include <direct.h> /* mingw64, MSVC 9 */
96#elif (@GNULIB_CLOSE@ || @GNULIB_DUP@ || @GNULIB_DUP2@ || @GNULIB_ISATTY@ \
97 || @GNULIB_LSEEK@ || @GNULIB_READ@ || @GNULIB_UNLINK@ || @GNULIB_WRITE@ \
98 || defined GNULIB_POSIXCHECK) \
5e8754f9 99 && ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)
8839a007
PA		 100# include <io.h>
101#endif
102
103/* AIX and OSF/1 5.1 declare getdomainname in <netdb.h>, not in <unistd.h>.
104 NonStop Kernel declares gethostname in <netdb.h>, not in <unistd.h>. */
105/* But avoid namespace pollution on glibc systems. */
106#if ((@GNULIB_GETDOMAINNAME@ && (defined _AIX || defined __osf__)) \
107 || (@GNULIB_GETHOSTNAME@ && defined __TANDEM)) \
108 && !defined __GLIBC__
109# include <netdb.h>
110#endif
111
112/* MSVC defines off_t in <sys/types.h>.
113 May also define off_t to a 64-bit type on native Windows. */
114#if !@HAVE_UNISTD_H@ || @WINDOWS_64_BIT_OFF_T@
115/* Get off_t. */
116# include <sys/types.h>
117#endif
118
119#if (@GNULIB_READ@ || @GNULIB_WRITE@ \
120 || @GNULIB_READLINK@ || @GNULIB_READLINKAT@ \
121 || @GNULIB_PREAD@ || @GNULIB_PWRITE@ || defined GNULIB_POSIXCHECK)
122/* Get ssize_t. */
123# include <sys/types.h>
124#endif
125
5e8754f9
SDJ		 126/* Get getopt(), optarg, optind, opterr, optopt.
127 But avoid namespace pollution on glibc systems. */
128#if @GNULIB_UNISTD_H_GETOPT@ && !defined __GLIBC__ && !defined _GL_SYSTEM_GETOPT
129# define __need_getopt
130# include <getopt.h>
8839a007
PA		 131#endif
132
4a626d0a
PA		 133#ifndef _GL_INLINE_HEADER_BEGIN
134 #error "Please include config.h first."
135#endif
8839a007
PA		 136_GL_INLINE_HEADER_BEGIN
137#ifndef _GL_UNISTD_INLINE
138# define _GL_UNISTD_INLINE _GL_INLINE
139#endif
140
5e8754f9
SDJ		 141/* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
142
143/* The definition of _GL_ARG_NONNULL is copied here. */
144
145/* The definition of _GL_WARN_ON_USE is copied here. */
146
147
8839a007
PA		 148/* Hide some function declarations from <winsock2.h>. */
149
150#if @GNULIB_GETHOSTNAME@ && @UNISTD_H_HAVE_WINSOCK2_H@
151# if !defined _@GUARD_PREFIX@_SYS_SOCKET_H
152# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
153# undef socket
154# define socket socket_used_without_including_sys_socket_h
155# undef connect
156# define connect connect_used_without_including_sys_socket_h
157# undef accept
158# define accept accept_used_without_including_sys_socket_h
159# undef bind
160# define bind bind_used_without_including_sys_socket_h
161# undef getpeername
162# define getpeername getpeername_used_without_including_sys_socket_h
163# undef getsockname
164# define getsockname getsockname_used_without_including_sys_socket_h
165# undef getsockopt
166# define getsockopt getsockopt_used_without_including_sys_socket_h
167# undef listen
168# define listen listen_used_without_including_sys_socket_h
169# undef recv
170# define recv recv_used_without_including_sys_socket_h
171# undef send
172# define send send_used_without_including_sys_socket_h
173# undef recvfrom
174# define recvfrom recvfrom_used_without_including_sys_socket_h
175# undef sendto
176# define sendto sendto_used_without_including_sys_socket_h
177# undef setsockopt
178# define setsockopt setsockopt_used_without_including_sys_socket_h
179# undef shutdown
180# define shutdown shutdown_used_without_including_sys_socket_h
181# else
182 _GL_WARN_ON_USE (socket,
183 "socket() used without including <sys/socket.h>");
184 _GL_WARN_ON_USE (connect,
185 "connect() used without including <sys/socket.h>");
186 _GL_WARN_ON_USE (accept,
187 "accept() used without including <sys/socket.h>");
188 _GL_WARN_ON_USE (bind,
189 "bind() used without including <sys/socket.h>");
190 _GL_WARN_ON_USE (getpeername,
191 "getpeername() used without including <sys/socket.h>");
192 _GL_WARN_ON_USE (getsockname,
193 "getsockname() used without including <sys/socket.h>");
194 _GL_WARN_ON_USE (getsockopt,
195 "getsockopt() used without including <sys/socket.h>");
196 _GL_WARN_ON_USE (listen,
197 "listen() used without including <sys/socket.h>");
198 _GL_WARN_ON_USE (recv,
199 "recv() used without including <sys/socket.h>");
200 _GL_WARN_ON_USE (send,
201 "send() used without including <sys/socket.h>");
202 _GL_WARN_ON_USE (recvfrom,
203 "recvfrom() used without including <sys/socket.h>");
204 _GL_WARN_ON_USE (sendto,
205 "sendto() used without including <sys/socket.h>");
206 _GL_WARN_ON_USE (setsockopt,
207 "setsockopt() used without including <sys/socket.h>");
208 _GL_WARN_ON_USE (shutdown,
209 "shutdown() used without including <sys/socket.h>");
210# endif
211# endif
212# if !defined _@GUARD_PREFIX@_SYS_SELECT_H
213# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
214# undef select
215# define select select_used_without_including_sys_select_h
216# else
217 _GL_WARN_ON_USE (select,
218 "select() used without including <sys/select.h>");
219# endif
220# endif
221#endif
222
223
224/* OS/2 EMX lacks these macros. */
225#ifndef STDIN_FILENO
226# define STDIN_FILENO 0
227#endif
228#ifndef STDOUT_FILENO
229# define STDOUT_FILENO 1
230#endif
231#ifndef STDERR_FILENO
232# define STDERR_FILENO 2
233#endif
234
235/* Ensure *_OK macros exist. */
236#ifndef F_OK
237# define F_OK 0
238# define X_OK 1
239# define W_OK 2
240# define R_OK 4
241#endif
242
243
244/* Declare overridden functions. */
245
246
247#if defined GNULIB_POSIXCHECK
248/* The access() function is a security risk. */
249_GL_WARN_ON_USE (access, "the access function is a security risk - "
250 "use the gnulib module faccessat instead");
251#endif
252
253
254#if @GNULIB_CHDIR@
255_GL_CXXALIAS_SYS (chdir, int, (const char *file) _GL_ARG_NONNULL ((1)));
256_GL_CXXALIASWARN (chdir);
257#elif defined GNULIB_POSIXCHECK
258# undef chdir
259# if HAVE_RAW_DECL_CHDIR
260_GL_WARN_ON_USE (chown, "chdir is not always in <unistd.h> - "
261 "use gnulib module chdir for portability");
262# endif
263#endif
264
265
266#if @GNULIB_CHOWN@
267/* Change the owner of FILE to UID (if UID is not -1) and the group of FILE
268 to GID (if GID is not -1). Follow symbolic links.
269 Return 0 if successful, otherwise -1 and errno set.
270 See the POSIX:2008 specification
271 <http://pubs.opengroup.org/onlinepubs/9699919799/functions/chown.html. */
272# if @REPLACE_CHOWN@
273# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
274# undef chown
275# define chown rpl_chown
276# endif
277_GL_FUNCDECL_RPL (chown, int, (const char *file, uid_t uid, gid_t gid)
278 _GL_ARG_NONNULL ((1)));
279_GL_CXXALIAS_RPL (chown, int, (const char *file, uid_t uid, gid_t gid));
280# else
281# if !@HAVE_CHOWN@
282_GL_FUNCDECL_SYS (chown, int, (const char *file, uid_t uid, gid_t gid)
283 _GL_ARG_NONNULL ((1)));
284# endif
285_GL_CXXALIAS_SYS (chown, int, (const char *file, uid_t uid, gid_t gid));
286# endif
287_GL_CXXALIASWARN (chown);
288#elif defined GNULIB_POSIXCHECK
289# undef chown
290# if HAVE_RAW_DECL_CHOWN
291_GL_WARN_ON_USE (chown, "chown fails to follow symlinks on some systems and "
292 "doesn't treat a uid or gid of -1 on some systems - "
293 "use gnulib module chown for portability");
294# endif
295#endif
296
297
298#if @GNULIB_CLOSE@
299# if @REPLACE_CLOSE@
300/* Automatically included by modules that need a replacement for close. */
301# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
302# undef close
303# define close rpl_close
304# endif
305_GL_FUNCDECL_RPL (close, int, (int fd));
306_GL_CXXALIAS_RPL (close, int, (int fd));
307# else
308_GL_CXXALIAS_SYS (close, int, (int fd));
309# endif
310_GL_CXXALIASWARN (close);
311#elif @UNISTD_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS@
312# undef close
313# define close close_used_without_requesting_gnulib_module_close
314#elif defined GNULIB_POSIXCHECK
315# undef close
316/* Assume close is always declared. */
317_GL_WARN_ON_USE (close, "close does not portably work on sockets - "
318 "use gnulib module close for portability");
319#endif
320
321
322#if @GNULIB_DUP@
323# if @REPLACE_DUP@
324# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
325# define dup rpl_dup
326# endif
327_GL_FUNCDECL_RPL (dup, int, (int oldfd));
328_GL_CXXALIAS_RPL (dup, int, (int oldfd));
329# else
330_GL_CXXALIAS_SYS (dup, int, (int oldfd));
331# endif
332_GL_CXXALIASWARN (dup);
333#elif defined GNULIB_POSIXCHECK
334# undef dup
335# if HAVE_RAW_DECL_DUP
336_GL_WARN_ON_USE (dup, "dup is unportable - "
337 "use gnulib module dup for portability");
338# endif
339#endif
340
341
342#if @GNULIB_DUP2@
343/* Copy the file descriptor OLDFD into file descriptor NEWFD. Do nothing if
344 NEWFD = OLDFD, otherwise close NEWFD first if it is open.
345 Return newfd if successful, otherwise -1 and errno set.
346 See the POSIX:2008 specification
347 <http://pubs.opengroup.org/onlinepubs/9699919799/functions/dup2.html>. */
348# if @REPLACE_DUP2@
349# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
350# define dup2 rpl_dup2
351# endif
352_GL_FUNCDECL_RPL (dup2, int, (int oldfd, int newfd));
353_GL_CXXALIAS_RPL (dup2, int, (int oldfd, int newfd));
354# else
355# if !@HAVE_DUP2@
356_GL_FUNCDECL_SYS (dup2, int, (int oldfd, int newfd));
357# endif
358_GL_CXXALIAS_SYS (dup2, int, (int oldfd, int newfd));
359# endif
360_GL_CXXALIASWARN (dup2);
361#elif defined GNULIB_POSIXCHECK
362# undef dup2
363# if HAVE_RAW_DECL_DUP2
364_GL_WARN_ON_USE (dup2, "dup2 is unportable - "
365 "use gnulib module dup2 for portability");
366# endif
367#endif
368
369
370#if @GNULIB_DUP3@
371/* Copy the file descriptor OLDFD into file descriptor NEWFD, with the
372 specified flags.
373 The flags are a bitmask, possibly including O_CLOEXEC (defined in <fcntl.h>)
374 and O_TEXT, O_BINARY (defined in "binary-io.h").
375 Close NEWFD first if it is open.
376 Return newfd if successful, otherwise -1 and errno set.
377 See the Linux man page at
5e8754f9 378 <http://www.kernel.org/doc/man-pages/online/pages/man2/dup3.2.html>. */
8839a007
PA		 379# if @HAVE_DUP3@
380# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
381# define dup3 rpl_dup3
382# endif
383_GL_FUNCDECL_RPL (dup3, int, (int oldfd, int newfd, int flags));
384_GL_CXXALIAS_RPL (dup3, int, (int oldfd, int newfd, int flags));
385# else
386_GL_FUNCDECL_SYS (dup3, int, (int oldfd, int newfd, int flags));
387_GL_CXXALIAS_SYS (dup3, int, (int oldfd, int newfd, int flags));
388# endif
389_GL_CXXALIASWARN (dup3);
390#elif defined GNULIB_POSIXCHECK
391# undef dup3
392# if HAVE_RAW_DECL_DUP3
393_GL_WARN_ON_USE (dup3, "dup3 is unportable - "
394 "use gnulib module dup3 for portability");
395# endif
396#endif
397
398
399#if @GNULIB_ENVIRON@
400# if !@HAVE_DECL_ENVIRON@
401/* Set of environment variables and values. An array of strings of the form
402 "VARIABLE=VALUE", terminated with a NULL. */
403# if defined __APPLE__ && defined __MACH__
4a626d0a
PA		 404# include <TargetConditionals.h>
405# if !TARGET_OS_IPHONE && !TARGET_IPHONE_SIMULATOR
406# define _GL_USE_CRT_EXTERNS
407# endif
408# endif
409# ifdef _GL_USE_CRT_EXTERNS
8839a007
PA		 410# include <crt_externs.h>
411# define environ (*_NSGetEnviron ())
412# else
413# ifdef __cplusplus
414extern "C" {
415# endif
416extern char **environ;
417# ifdef __cplusplus
418}
419# endif
420# endif
421# endif
422#elif defined GNULIB_POSIXCHECK
423# if HAVE_RAW_DECL_ENVIRON
424_GL_UNISTD_INLINE char ***
425rpl_environ (void)
426{
427 return &environ;
428}
5e8754f9
SDJ		 429_GL_WARN_ON_USE (rpl_environ, "environ is unportable - "
430 "use gnulib module environ for portability");
8839a007
PA		 431# undef environ
432# define environ (*rpl_environ ())
433# endif
434#endif
435
436
437#if @GNULIB_EUIDACCESS@
438/* Like access(), except that it uses the effective user id and group id of
439 the current process. */
440# if !@HAVE_EUIDACCESS@
441_GL_FUNCDECL_SYS (euidaccess, int, (const char *filename, int mode)
442 _GL_ARG_NONNULL ((1)));
443# endif
444_GL_CXXALIAS_SYS (euidaccess, int, (const char *filename, int mode));
445_GL_CXXALIASWARN (euidaccess);
446# if defined GNULIB_POSIXCHECK
447/* Like access(), this function is a security risk. */
448_GL_WARN_ON_USE (euidaccess, "the euidaccess function is a security risk - "
449 "use the gnulib module faccessat instead");
450# endif
451#elif defined GNULIB_POSIXCHECK
452# undef euidaccess
453# if HAVE_RAW_DECL_EUIDACCESS
454_GL_WARN_ON_USE (euidaccess, "euidaccess is unportable - "
455 "use gnulib module euidaccess for portability");
456# endif
457#endif
458
459
460#if @GNULIB_FACCESSAT@
5e8754f9 461# if !@HAVE_FACCESSAT@
8839a007
PA		 462_GL_FUNCDECL_SYS (faccessat, int,
463 (int fd, char const *file, int mode, int flag)
464 _GL_ARG_NONNULL ((2)));
5e8754f9 465# endif
8839a007
PA		 466_GL_CXXALIAS_SYS (faccessat, int,
467 (int fd, char const *file, int mode, int flag));
468_GL_CXXALIASWARN (faccessat);
469#elif defined GNULIB_POSIXCHECK
470# undef faccessat
471# if HAVE_RAW_DECL_FACCESSAT
472_GL_WARN_ON_USE (faccessat, "faccessat is not portable - "
473 "use gnulib module faccessat for portability");
474# endif
475#endif
476
477
478#if @GNULIB_FCHDIR@
479/* Change the process' current working directory to the directory on which
480 the given file descriptor is open.
481 Return 0 if successful, otherwise -1 and errno set.
482 See the POSIX:2008 specification
483 <http://pubs.opengroup.org/onlinepubs/9699919799/functions/fchdir.html>. */
484# if ! @HAVE_FCHDIR@
485_GL_FUNCDECL_SYS (fchdir, int, (int /*fd*/));
486
487/* Gnulib internal hooks needed to maintain the fchdir metadata. */
488_GL_EXTERN_C int _gl_register_fd (int fd, const char *filename)
489 _GL_ARG_NONNULL ((2));
490_GL_EXTERN_C void _gl_unregister_fd (int fd);
491_GL_EXTERN_C int _gl_register_dup (int oldfd, int newfd);
492_GL_EXTERN_C const char *_gl_directory_name (int fd);
493
494# else
495# if !@HAVE_DECL_FCHDIR@
496_GL_FUNCDECL_SYS (fchdir, int, (int /*fd*/));
497# endif
498# endif
499_GL_CXXALIAS_SYS (fchdir, int, (int /*fd*/));
500_GL_CXXALIASWARN (fchdir);
501#elif defined GNULIB_POSIXCHECK
502# undef fchdir
503# if HAVE_RAW_DECL_FCHDIR
504_GL_WARN_ON_USE (fchdir, "fchdir is unportable - "
505 "use gnulib module fchdir for portability");
506# endif
507#endif
508
509
510#if @GNULIB_FCHOWNAT@
511# if @REPLACE_FCHOWNAT@
512# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
513# undef fchownat
514# define fchownat rpl_fchownat
515# endif
516_GL_FUNCDECL_RPL (fchownat, int, (int fd, char const *file,
517 uid_t owner, gid_t group, int flag)
518 _GL_ARG_NONNULL ((2)));
519_GL_CXXALIAS_RPL (fchownat, int, (int fd, char const *file,
520 uid_t owner, gid_t group, int flag));
521# else
522# if !@HAVE_FCHOWNAT@
523_GL_FUNCDECL_SYS (fchownat, int, (int fd, char const *file,
524 uid_t owner, gid_t group, int flag)
525 _GL_ARG_NONNULL ((2)));
526# endif
527_GL_CXXALIAS_SYS (fchownat, int, (int fd, char const *file,
528 uid_t owner, gid_t group, int flag));
529# endif
530_GL_CXXALIASWARN (fchownat);
531#elif defined GNULIB_POSIXCHECK
532# undef fchownat
533# if HAVE_RAW_DECL_FCHOWNAT
534_GL_WARN_ON_USE (fchownat, "fchownat is not portable - "
535 "use gnulib module openat for portability");
536# endif
537#endif
538
539
540#if @GNULIB_FDATASYNC@
541/* Synchronize changes to a file.
542 Return 0 if successful, otherwise -1 and errno set.
543 See POSIX:2008 specification
544 <http://pubs.opengroup.org/onlinepubs/9699919799/functions/fdatasync.html>. */
545# if !@HAVE_FDATASYNC@ || !@HAVE_DECL_FDATASYNC@
546_GL_FUNCDECL_SYS (fdatasync, int, (int fd));
547# endif
548_GL_CXXALIAS_SYS (fdatasync, int, (int fd));
549_GL_CXXALIASWARN (fdatasync);
550#elif defined GNULIB_POSIXCHECK
551# undef fdatasync
552# if HAVE_RAW_DECL_FDATASYNC
553_GL_WARN_ON_USE (fdatasync, "fdatasync is unportable - "
554 "use gnulib module fdatasync for portability");
555# endif
556#endif
557
558
559#if @GNULIB_FSYNC@
560/* Synchronize changes, including metadata, to a file.
561 Return 0 if successful, otherwise -1 and errno set.
562 See POSIX:2008 specification
563 <http://pubs.opengroup.org/onlinepubs/9699919799/functions/fsync.html>. */
564# if !@HAVE_FSYNC@
565_GL_FUNCDECL_SYS (fsync, int, (int fd));
566# endif
567_GL_CXXALIAS_SYS (fsync, int, (int fd));
568_GL_CXXALIASWARN (fsync);
569#elif defined GNULIB_POSIXCHECK
570# undef fsync
571# if HAVE_RAW_DECL_FSYNC
572_GL_WARN_ON_USE (fsync, "fsync is unportable - "
573 "use gnulib module fsync for portability");
574# endif
575#endif
576
577
578#if @GNULIB_FTRUNCATE@
579/* Change the size of the file to which FD is opened to become equal to LENGTH.
580 Return 0 if successful, otherwise -1 and errno set.
581 See the POSIX:2008 specification
582 <http://pubs.opengroup.org/onlinepubs/9699919799/functions/ftruncate.html>. */
583# if @REPLACE_FTRUNCATE@
584# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
585# undef ftruncate
586# define ftruncate rpl_ftruncate
587# endif
588_GL_FUNCDECL_RPL (ftruncate, int, (int fd, off_t length));
589_GL_CXXALIAS_RPL (ftruncate, int, (int fd, off_t length));
590# else
591# if !@HAVE_FTRUNCATE@
592_GL_FUNCDECL_SYS (ftruncate, int, (int fd, off_t length));
593# endif
594_GL_CXXALIAS_SYS (ftruncate, int, (int fd, off_t length));
595# endif
596_GL_CXXALIASWARN (ftruncate);
597#elif defined GNULIB_POSIXCHECK
598# undef ftruncate
599# if HAVE_RAW_DECL_FTRUNCATE
600_GL_WARN_ON_USE (ftruncate, "ftruncate is unportable - "
601 "use gnulib module ftruncate for portability");
602# endif
603#endif
604
605
606#if @GNULIB_GETCWD@
607/* Get the name of the current working directory, and put it in SIZE bytes
608 of BUF.
609 Return BUF if successful, or NULL if the directory couldn't be determined
610 or SIZE was too small.
611 See the POSIX:2008 specification
612 <http://pubs.opengroup.org/onlinepubs/9699919799/functions/getcwd.html>.
613 Additionally, the gnulib module 'getcwd' guarantees the following GNU
614 extension: If BUF is NULL, an array is allocated with 'malloc'; the array
615 is SIZE bytes long, unless SIZE == 0, in which case it is as big as
616 necessary. */
617# if @REPLACE_GETCWD@
618# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
619# define getcwd rpl_getcwd
620# endif
621_GL_FUNCDECL_RPL (getcwd, char *, (char *buf, size_t size));
622_GL_CXXALIAS_RPL (getcwd, char *, (char *buf, size_t size));
623# else
624/* Need to cast, because on mingw, the second parameter is
625 int size. */
626_GL_CXXALIAS_SYS_CAST (getcwd, char *, (char *buf, size_t size));
627# endif
628_GL_CXXALIASWARN (getcwd);
629#elif defined GNULIB_POSIXCHECK
630# undef getcwd
631# if HAVE_RAW_DECL_GETCWD
632_GL_WARN_ON_USE (getcwd, "getcwd is unportable - "
633 "use gnulib module getcwd for portability");
634# endif
635#endif
636
637
638#if @GNULIB_GETDOMAINNAME@
639/* Return the NIS domain name of the machine.
640 WARNING! The NIS domain name is unrelated to the fully qualified host name
641 of the machine. It is also unrelated to email addresses.
642 WARNING! The NIS domain name is usually the empty string or "(none)" when
643 not using NIS.
644
645 Put up to LEN bytes of the NIS domain name into NAME.
646 Null terminate it if the name is shorter than LEN.
647 If the NIS domain name is longer than LEN, set errno = EINVAL and return -1.
648 Return 0 if successful, otherwise set errno and return -1. */
649# if @REPLACE_GETDOMAINNAME@
650# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
651# undef getdomainname
652# define getdomainname rpl_getdomainname
653# endif
654_GL_FUNCDECL_RPL (getdomainname, int, (char *name, size_t len)
655 _GL_ARG_NONNULL ((1)));
656_GL_CXXALIAS_RPL (getdomainname, int, (char *name, size_t len));
657# else
658# if !@HAVE_DECL_GETDOMAINNAME@
659_GL_FUNCDECL_SYS (getdomainname, int, (char *name, size_t len)
660 _GL_ARG_NONNULL ((1)));
661# endif
662_GL_CXXALIAS_SYS (getdomainname, int, (char *name, size_t len));
663# endif
664_GL_CXXALIASWARN (getdomainname);
665#elif defined GNULIB_POSIXCHECK
666# undef getdomainname
667# if HAVE_RAW_DECL_GETDOMAINNAME
668_GL_WARN_ON_USE (getdomainname, "getdomainname is unportable - "
669 "use gnulib module getdomainname for portability");
670# endif
671#endif
672
673
674#if @GNULIB_GETDTABLESIZE@
675/* Return the maximum number of file descriptors in the current process.
676 In POSIX, this is same as sysconf (_SC_OPEN_MAX). */
4a626d0a
PA		 677# if @REPLACE_GETDTABLESIZE@
678# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
679# undef getdtablesize
680# define getdtablesize rpl_getdtablesize
681# endif
682_GL_FUNCDECL_RPL (getdtablesize, int, (void));
683_GL_CXXALIAS_RPL (getdtablesize, int, (void));
684# else
685# if !@HAVE_GETDTABLESIZE@
8839a007 686_GL_FUNCDECL_SYS (getdtablesize, int, (void));
4a626d0a 687# endif
8839a007 688_GL_CXXALIAS_SYS (getdtablesize, int, (void));
4a626d0a 689# endif
8839a007
PA		 690_GL_CXXALIASWARN (getdtablesize);
691#elif defined GNULIB_POSIXCHECK
692# undef getdtablesize
693# if HAVE_RAW_DECL_GETDTABLESIZE
694_GL_WARN_ON_USE (getdtablesize, "getdtablesize is unportable - "
695 "use gnulib module getdtablesize for portability");
696# endif
697#endif
698
699
700#if @GNULIB_GETGROUPS@
701/* Return the supplemental groups that the current process belongs to.
702 It is unspecified whether the effective group id is in the list.
703 If N is 0, return the group count; otherwise, N describes how many
704 entries are available in GROUPS. Return -1 and set errno if N is
705 not 0 and not large enough. Fails with ENOSYS on some systems. */
706# if @REPLACE_GETGROUPS@
707# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
708# undef getgroups
709# define getgroups rpl_getgroups
710# endif
711_GL_FUNCDECL_RPL (getgroups, int, (int n, gid_t *groups));
712_GL_CXXALIAS_RPL (getgroups, int, (int n, gid_t *groups));
713# else
714# if !@HAVE_GETGROUPS@
715_GL_FUNCDECL_SYS (getgroups, int, (int n, gid_t *groups));
716# endif
717_GL_CXXALIAS_SYS (getgroups, int, (int n, gid_t *groups));
718# endif
719_GL_CXXALIASWARN (getgroups);
720#elif defined GNULIB_POSIXCHECK
721# undef getgroups
722# if HAVE_RAW_DECL_GETGROUPS
723_GL_WARN_ON_USE (getgroups, "getgroups is unportable - "
724 "use gnulib module getgroups for portability");
725# endif
726#endif
727
728
729#if @GNULIB_GETHOSTNAME@
730/* Return the standard host name of the machine.
731 WARNING! The host name may or may not be fully qualified.
732
733 Put up to LEN bytes of the host name into NAME.
734 Null terminate it if the name is shorter than LEN.
735 If the host name is longer than LEN, set errno = EINVAL and return -1.
736 Return 0 if successful, otherwise set errno and return -1. */
737# if @UNISTD_H_HAVE_WINSOCK2_H@
738# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
739# undef gethostname
740# define gethostname rpl_gethostname
741# endif
742_GL_FUNCDECL_RPL (gethostname, int, (char *name, size_t len)
743 _GL_ARG_NONNULL ((1)));
744_GL_CXXALIAS_RPL (gethostname, int, (char *name, size_t len));
745# else
746# if !@HAVE_GETHOSTNAME@
747_GL_FUNCDECL_SYS (gethostname, int, (char *name, size_t len)
748 _GL_ARG_NONNULL ((1)));
749# endif
750/* Need to cast, because on Solaris 10 and OSF/1 5.1 systems, the second
751 parameter is
752 int len. */
753_GL_CXXALIAS_SYS_CAST (gethostname, int, (char *name, size_t len));
754# endif
755_GL_CXXALIASWARN (gethostname);
756#elif @UNISTD_H_HAVE_WINSOCK2_H@
757# undef gethostname
758# define gethostname gethostname_used_without_requesting_gnulib_module_gethostname
759#elif defined GNULIB_POSIXCHECK
760# undef gethostname
761# if HAVE_RAW_DECL_GETHOSTNAME
762_GL_WARN_ON_USE (gethostname, "gethostname is unportable - "
763 "use gnulib module gethostname for portability");
764# endif
765#endif
766
767
768#if @GNULIB_GETLOGIN@
769/* Returns the user's login name, or NULL if it cannot be found. Upon error,
770 returns NULL with errno set.
771
772 See <http://www.opengroup.org/susv3xsh/getlogin.html>.
773
774 Most programs don't need to use this function, because the information is
775 available through environment variables:
776 ${LOGNAME-$USER} on Unix platforms,
777 $USERNAME on native Windows platforms.
778 */
5e8754f9 779# if !@HAVE_GETLOGIN@
8839a007
PA		 780_GL_FUNCDECL_SYS (getlogin, char *, (void));
781# endif
782_GL_CXXALIAS_SYS (getlogin, char *, (void));
783_GL_CXXALIASWARN (getlogin);
784#elif defined GNULIB_POSIXCHECK
785# undef getlogin
786# if HAVE_RAW_DECL_GETLOGIN
787_GL_WARN_ON_USE (getlogin, "getlogin is unportable - "
788 "use gnulib module getlogin for portability");
789# endif
790#endif
791
792
793#if @GNULIB_GETLOGIN_R@
794/* Copies the user's login name to NAME.
795 The array pointed to by NAME has room for SIZE bytes.
796
797 Returns 0 if successful. Upon error, an error number is returned, or -1 in
798 the case that the login name cannot be found but no specific error is
799 provided (this case is hopefully rare but is left open by the POSIX spec).
800
801 See <http://www.opengroup.org/susv3xsh/getlogin.html>.
802
803 Most programs don't need to use this function, because the information is
804 available through environment variables:
805 ${LOGNAME-$USER} on Unix platforms,
806 $USERNAME on native Windows platforms.
807 */
808# if @REPLACE_GETLOGIN_R@
809# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
810# define getlogin_r rpl_getlogin_r
811# endif
812_GL_FUNCDECL_RPL (getlogin_r, int, (char *name, size_t size)
813 _GL_ARG_NONNULL ((1)));
814_GL_CXXALIAS_RPL (getlogin_r, int, (char *name, size_t size));
815# else
816# if !@HAVE_DECL_GETLOGIN_R@
817_GL_FUNCDECL_SYS (getlogin_r, int, (char *name, size_t size)
818 _GL_ARG_NONNULL ((1)));
819# endif
820/* Need to cast, because on Solaris 10 systems, the second argument is
821 int size. */
822_GL_CXXALIAS_SYS_CAST (getlogin_r, int, (char *name, size_t size));
823# endif
824_GL_CXXALIASWARN (getlogin_r);
825#elif defined GNULIB_POSIXCHECK
826# undef getlogin_r
827# if HAVE_RAW_DECL_GETLOGIN_R
828_GL_WARN_ON_USE (getlogin_r, "getlogin_r is unportable - "
829 "use gnulib module getlogin_r for portability");
830# endif
831#endif
832
833
834#if @GNULIB_GETPAGESIZE@
835# if @REPLACE_GETPAGESIZE@
836# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
837# define getpagesize rpl_getpagesize
838# endif
839_GL_FUNCDECL_RPL (getpagesize, int, (void));
840_GL_CXXALIAS_RPL (getpagesize, int, (void));
841# else
842# if !@HAVE_GETPAGESIZE@
843# if !defined getpagesize
844/* This is for POSIX systems. */
845# if !defined _gl_getpagesize && defined _SC_PAGESIZE
846# if ! (defined __VMS && __VMS_VER < 70000000)
847# define _gl_getpagesize() sysconf (_SC_PAGESIZE)
848# endif
849# endif
850/* This is for older VMS. */
851# if !defined _gl_getpagesize && defined __VMS
852# ifdef __ALPHA
853# define _gl_getpagesize() 8192
854# else
855# define _gl_getpagesize() 512
856# endif
857# endif
858/* This is for BeOS. */
859# if !defined _gl_getpagesize && @HAVE_OS_H@
860# include <OS.h>
861# if defined B_PAGE_SIZE
862# define _gl_getpagesize() B_PAGE_SIZE
863# endif
864# endif
865/* This is for AmigaOS4.0. */
866# if !defined _gl_getpagesize && defined __amigaos4__
867# define _gl_getpagesize() 2048
868# endif
869/* This is for older Unix systems. */
870# if !defined _gl_getpagesize && @HAVE_SYS_PARAM_H@
871# include <sys/param.h>
872# ifdef EXEC_PAGESIZE
873# define _gl_getpagesize() EXEC_PAGESIZE
874# else
875# ifdef NBPG
876# ifndef CLSIZE
877# define CLSIZE 1
878# endif
879# define _gl_getpagesize() (NBPG * CLSIZE)
880# else
881# ifdef NBPC
882# define _gl_getpagesize() NBPC
883# endif
884# endif
885# endif
886# endif
887# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
888# define getpagesize() _gl_getpagesize ()
889# else
890# if !GNULIB_defined_getpagesize_function
891_GL_UNISTD_INLINE int
892getpagesize ()
893{
894 return _gl_getpagesize ();
895}
896# define GNULIB_defined_getpagesize_function 1
897# endif
898# endif
899# endif
900# endif
901/* Need to cast, because on Cygwin 1.5.x systems, the return type is size_t. */
902_GL_CXXALIAS_SYS_CAST (getpagesize, int, (void));
903# endif
904# if @HAVE_DECL_GETPAGESIZE@
905_GL_CXXALIASWARN (getpagesize);
906# endif
907#elif defined GNULIB_POSIXCHECK
908# undef getpagesize
909# if HAVE_RAW_DECL_GETPAGESIZE
910_GL_WARN_ON_USE (getpagesize, "getpagesize is unportable - "
911 "use gnulib module getpagesize for portability");
912# endif
913#endif
914
915
916#if @GNULIB_GETUSERSHELL@
917/* Return the next valid login shell on the system, or NULL when the end of
918 the list has been reached. */
919# if !@HAVE_DECL_GETUSERSHELL@
920_GL_FUNCDECL_SYS (getusershell, char *, (void));
921# endif
922_GL_CXXALIAS_SYS (getusershell, char *, (void));
923_GL_CXXALIASWARN (getusershell);
924#elif defined GNULIB_POSIXCHECK
925# undef getusershell
926# if HAVE_RAW_DECL_GETUSERSHELL
927_GL_WARN_ON_USE (getusershell, "getusershell is unportable - "
928 "use gnulib module getusershell for portability");
929# endif
930#endif
931
932#if @GNULIB_GETUSERSHELL@
933/* Rewind to pointer that is advanced at each getusershell() call. */
934# if !@HAVE_DECL_GETUSERSHELL@
935_GL_FUNCDECL_SYS (setusershell, void, (void));
936# endif
937_GL_CXXALIAS_SYS (setusershell, void, (void));
938_GL_CXXALIASWARN (setusershell);
939#elif defined GNULIB_POSIXCHECK
940# undef setusershell
941# if HAVE_RAW_DECL_SETUSERSHELL
942_GL_WARN_ON_USE (setusershell, "setusershell is unportable - "
943 "use gnulib module getusershell for portability");
944# endif
945#endif
946
947#if @GNULIB_GETUSERSHELL@
948/* Free the pointer that is advanced at each getusershell() call and
949 associated resources. */
950# if !@HAVE_DECL_GETUSERSHELL@
951_GL_FUNCDECL_SYS (endusershell, void, (void));
952# endif
953_GL_CXXALIAS_SYS (endusershell, void, (void));
954_GL_CXXALIASWARN (endusershell);
955#elif defined GNULIB_POSIXCHECK
956# undef endusershell
957# if HAVE_RAW_DECL_ENDUSERSHELL
958_GL_WARN_ON_USE (endusershell, "endusershell is unportable - "
959 "use gnulib module getusershell for portability");
960# endif
961#endif
962
963
964#if @GNULIB_GROUP_MEMBER@
965/* Determine whether group id is in calling user's group list. */
966# if !@HAVE_GROUP_MEMBER@
967_GL_FUNCDECL_SYS (group_member, int, (gid_t gid));
968# endif
969_GL_CXXALIAS_SYS (group_member, int, (gid_t gid));
970_GL_CXXALIASWARN (group_member);
971#elif defined GNULIB_POSIXCHECK
972# undef group_member
973# if HAVE_RAW_DECL_GROUP_MEMBER
974_GL_WARN_ON_USE (group_member, "group_member is unportable - "
975 "use gnulib module group-member for portability");
976# endif
977#endif
978
979
980#if @GNULIB_ISATTY@
981# if @REPLACE_ISATTY@
982# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
983# undef isatty
984# define isatty rpl_isatty
985# endif
986_GL_FUNCDECL_RPL (isatty, int, (int fd));
987_GL_CXXALIAS_RPL (isatty, int, (int fd));
988# else
989_GL_CXXALIAS_SYS (isatty, int, (int fd));
990# endif
991_GL_CXXALIASWARN (isatty);
992#elif defined GNULIB_POSIXCHECK
993# undef isatty
994# if HAVE_RAW_DECL_ISATTY
995_GL_WARN_ON_USE (isatty, "isatty has portability problems on native Windows - "
996 "use gnulib module isatty for portability");
997# endif
998#endif
999
1000
1001#if @GNULIB_LCHOWN@
1002/* Change the owner of FILE to UID (if UID is not -1) and the group of FILE
1003 to GID (if GID is not -1). Do not follow symbolic links.
1004 Return 0 if successful, otherwise -1 and errno set.
1005 See the POSIX:2008 specification
1006 <http://pubs.opengroup.org/onlinepubs/9699919799/functions/lchown.html>. */
1007# if @REPLACE_LCHOWN@
1008# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1009# undef lchown
1010# define lchown rpl_lchown
1011# endif
1012_GL_FUNCDECL_RPL (lchown, int, (char const *file, uid_t owner, gid_t group)
1013 _GL_ARG_NONNULL ((1)));
1014_GL_CXXALIAS_RPL (lchown, int, (char const *file, uid_t owner, gid_t group));
1015# else
1016# if !@HAVE_LCHOWN@
1017_GL_FUNCDECL_SYS (lchown, int, (char const *file, uid_t owner, gid_t group)
1018 _GL_ARG_NONNULL ((1)));
1019# endif
1020_GL_CXXALIAS_SYS (lchown, int, (char const *file, uid_t owner, gid_t group));
1021# endif
1022_GL_CXXALIASWARN (lchown);
1023#elif defined GNULIB_POSIXCHECK
1024# undef lchown
1025# if HAVE_RAW_DECL_LCHOWN
1026_GL_WARN_ON_USE (lchown, "lchown is unportable to pre-POSIX.1-2001 systems - "
1027 "use gnulib module lchown for portability");
1028# endif
1029#endif
1030
1031
1032#if @GNULIB_LINK@
1033/* Create a new hard link for an existing file.
1034 Return 0 if successful, otherwise -1 and errno set.
1035 See POSIX:2008 specification
1036 <http://pubs.opengroup.org/onlinepubs/9699919799/functions/link.html>. */
1037# if @REPLACE_LINK@
1038# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1039# define link rpl_link
1040# endif
1041_GL_FUNCDECL_RPL (link, int, (const char *path1, const char *path2)
1042 _GL_ARG_NONNULL ((1, 2)));
1043_GL_CXXALIAS_RPL (link, int, (const char *path1, const char *path2));
1044# else
1045# if !@HAVE_LINK@
1046_GL_FUNCDECL_SYS (link, int, (const char *path1, const char *path2)
1047 _GL_ARG_NONNULL ((1, 2)));
1048# endif
1049_GL_CXXALIAS_SYS (link, int, (const char *path1, const char *path2));
1050# endif
1051_GL_CXXALIASWARN (link);
1052#elif defined GNULIB_POSIXCHECK
1053# undef link
1054# if HAVE_RAW_DECL_LINK
1055_GL_WARN_ON_USE (link, "link is unportable - "
1056 "use gnulib module link for portability");
1057# endif
1058#endif
1059
1060
1061#if @GNULIB_LINKAT@
1062/* Create a new hard link for an existing file, relative to two
1063 directories. FLAG controls whether symlinks are followed.
1064 Return 0 if successful, otherwise -1 and errno set. */
1065# if @REPLACE_LINKAT@
1066# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1067# undef linkat
1068# define linkat rpl_linkat
1069# endif
1070_GL_FUNCDECL_RPL (linkat, int,
1071 (int fd1, const char *path1, int fd2, const char *path2,
1072 int flag)
1073 _GL_ARG_NONNULL ((2, 4)));
1074_GL_CXXALIAS_RPL (linkat, int,
1075 (int fd1, const char *path1, int fd2, const char *path2,
1076 int flag));
1077# else
1078# if !@HAVE_LINKAT@
1079_GL_FUNCDECL_SYS (linkat, int,
1080 (int fd1, const char *path1, int fd2, const char *path2,
1081 int flag)
1082 _GL_ARG_NONNULL ((2, 4)));
1083# endif
1084_GL_CXXALIAS_SYS (linkat, int,
1085 (int fd1, const char *path1, int fd2, const char *path2,
1086 int flag));
1087# endif
1088_GL_CXXALIASWARN (linkat);
1089#elif defined GNULIB_POSIXCHECK
1090# undef linkat
1091# if HAVE_RAW_DECL_LINKAT
1092_GL_WARN_ON_USE (linkat, "linkat is unportable - "
1093 "use gnulib module linkat for portability");
1094# endif
1095#endif
1096
1097
1098#if @GNULIB_LSEEK@
1099/* Set the offset of FD relative to SEEK_SET, SEEK_CUR, or SEEK_END.
1100 Return the new offset if successful, otherwise -1 and errno set.
1101 See the POSIX:2008 specification
1102 <http://pubs.opengroup.org/onlinepubs/9699919799/functions/lseek.html>. */
1103# if @REPLACE_LSEEK@
1104# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1105# define lseek rpl_lseek
1106# endif
1107_GL_FUNCDECL_RPL (lseek, off_t, (int fd, off_t offset, int whence));
1108_GL_CXXALIAS_RPL (lseek, off_t, (int fd, off_t offset, int whence));
1109# else
1110_GL_CXXALIAS_SYS (lseek, off_t, (int fd, off_t offset, int whence));
1111# endif
1112_GL_CXXALIASWARN (lseek);
1113#elif defined GNULIB_POSIXCHECK
1114# undef lseek
1115# if HAVE_RAW_DECL_LSEEK
1116_GL_WARN_ON_USE (lseek, "lseek does not fail with ESPIPE on pipes on some "
1117 "systems - use gnulib module lseek for portability");
1118# endif
1119#endif
1120
1121
1122#if @GNULIB_PIPE@
1123/* Create a pipe, defaulting to O_BINARY mode.
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# if !@HAVE_PIPE@
1127_GL_FUNCDECL_SYS (pipe, int, (int fd[2]) _GL_ARG_NONNULL ((1)));
1128# endif
1129_GL_CXXALIAS_SYS (pipe, int, (int fd[2]));
1130_GL_CXXALIASWARN (pipe);
1131#elif defined GNULIB_POSIXCHECK
1132# undef pipe
1133# if HAVE_RAW_DECL_PIPE
1134_GL_WARN_ON_USE (pipe, "pipe is unportable - "
1135 "use gnulib module pipe-posix for portability");
1136# endif
1137#endif
1138
1139
1140#if @GNULIB_PIPE2@
1141/* Create a pipe, applying the given flags when opening the read-end of the
1142 pipe and the write-end of the pipe.
1143 The flags are a bitmask, possibly including O_CLOEXEC (defined in <fcntl.h>)
1144 and O_TEXT, O_BINARY (defined in "binary-io.h").
1145 Store the read-end as fd[0] and the write-end as fd[1].
1146 Return 0 upon success, or -1 with errno set upon failure.
1147 See also the Linux man page at
5e8754f9 1148 <http://www.kernel.org/doc/man-pages/online/pages/man2/pipe2.2.html>. */
8839a007
PA		 1149# if @HAVE_PIPE2@
1150# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1151# define pipe2 rpl_pipe2
1152# endif
1153_GL_FUNCDECL_RPL (pipe2, int, (int fd[2], int flags) _GL_ARG_NONNULL ((1)));
1154_GL_CXXALIAS_RPL (pipe2, int, (int fd[2], int flags));
1155# else
1156_GL_FUNCDECL_SYS (pipe2, int, (int fd[2], int flags) _GL_ARG_NONNULL ((1)));
1157_GL_CXXALIAS_SYS (pipe2, int, (int fd[2], int flags));
1158# endif
1159_GL_CXXALIASWARN (pipe2);
1160#elif defined GNULIB_POSIXCHECK
1161# undef pipe2
1162# if HAVE_RAW_DECL_PIPE2
1163_GL_WARN_ON_USE (pipe2, "pipe2 is unportable - "
1164 "use gnulib module pipe2 for portability");
1165# endif
1166#endif
1167
1168
1169#if @GNULIB_PREAD@
1170/* Read at most BUFSIZE bytes from FD into BUF, starting at OFFSET.
1171 Return the number of bytes placed into BUF if successful, otherwise
1172 set errno and return -1. 0 indicates EOF.
1173 See the POSIX:2008 specification
1174 <http://pubs.opengroup.org/onlinepubs/9699919799/functions/pread.html>. */
1175# if @REPLACE_PREAD@
1176# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1177# undef pread
1178# define pread rpl_pread
1179# endif
1180_GL_FUNCDECL_RPL (pread, ssize_t,
1181 (int fd, void *buf, size_t bufsize, off_t offset)
1182 _GL_ARG_NONNULL ((2)));
1183_GL_CXXALIAS_RPL (pread, ssize_t,
1184 (int fd, void *buf, size_t bufsize, off_t offset));
1185# else
1186# if !@HAVE_PREAD@
1187_GL_FUNCDECL_SYS (pread, ssize_t,
1188 (int fd, void *buf, size_t bufsize, off_t offset)
1189 _GL_ARG_NONNULL ((2)));
1190# endif
1191_GL_CXXALIAS_SYS (pread, ssize_t,
1192 (int fd, void *buf, size_t bufsize, off_t offset));
1193# endif
1194_GL_CXXALIASWARN (pread);
1195#elif defined GNULIB_POSIXCHECK
1196# undef pread
1197# if HAVE_RAW_DECL_PREAD
1198_GL_WARN_ON_USE (pread, "pread is unportable - "
1199 "use gnulib module pread for portability");
1200# endif
1201#endif
1202
1203
1204#if @GNULIB_PWRITE@
1205/* Write at most BUFSIZE bytes from BUF into FD, starting at OFFSET.
1206 Return the number of bytes written if successful, otherwise
1207 set errno and return -1. 0 indicates nothing written. See the
1208 POSIX:2008 specification
1209 <http://pubs.opengroup.org/onlinepubs/9699919799/functions/pwrite.html>. */
1210# if @REPLACE_PWRITE@
1211# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1212# undef pwrite
1213# define pwrite rpl_pwrite
1214# endif
1215_GL_FUNCDECL_RPL (pwrite, ssize_t,
1216 (int fd, const void *buf, size_t bufsize, off_t offset)
1217 _GL_ARG_NONNULL ((2)));
1218_GL_CXXALIAS_RPL (pwrite, ssize_t,
1219 (int fd, const void *buf, size_t bufsize, off_t offset));
1220# else
1221# if !@HAVE_PWRITE@
1222_GL_FUNCDECL_SYS (pwrite, ssize_t,
1223 (int fd, const void *buf, size_t bufsize, off_t offset)
1224 _GL_ARG_NONNULL ((2)));
1225# endif
1226_GL_CXXALIAS_SYS (pwrite, ssize_t,
1227 (int fd, const void *buf, size_t bufsize, off_t offset));
1228# endif
1229_GL_CXXALIASWARN (pwrite);
1230#elif defined GNULIB_POSIXCHECK
1231# undef pwrite
1232# if HAVE_RAW_DECL_PWRITE
1233_GL_WARN_ON_USE (pwrite, "pwrite is unportable - "
1234 "use gnulib module pwrite for portability");
1235# endif
1236#endif
1237
1238
1239#if @GNULIB_READ@
1240/* Read up to COUNT bytes from file descriptor FD into the buffer starting
1241 at BUF. See the POSIX:2008 specification
1242 <http://pubs.opengroup.org/onlinepubs/9699919799/functions/read.html>. */
1243# if @REPLACE_READ@
1244# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1245# undef read
1246# define read rpl_read
1247# endif
1248_GL_FUNCDECL_RPL (read, ssize_t, (int fd, void *buf, size_t count)
1249 _GL_ARG_NONNULL ((2)));
1250_GL_CXXALIAS_RPL (read, ssize_t, (int fd, void *buf, size_t count));
1251# else
1252/* Need to cast, because on mingw, the third parameter is
1253 unsigned int count
1254 and the return type is 'int'. */
1255_GL_CXXALIAS_SYS_CAST (read, ssize_t, (int fd, void *buf, size_t count));
1256# endif
1257_GL_CXXALIASWARN (read);
1258#endif
1259
1260
1261#if @GNULIB_READLINK@
1262/* Read the contents of the symbolic link FILE and place the first BUFSIZE
1263 bytes of it into BUF. Return the number of bytes placed into BUF if
1264 successful, otherwise -1 and errno set.
1265 See the POSIX:2008 specification
1266 <http://pubs.opengroup.org/onlinepubs/9699919799/functions/readlink.html>. */
1267# if @REPLACE_READLINK@
1268# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1269# define readlink rpl_readlink
1270# endif
1271_GL_FUNCDECL_RPL (readlink, ssize_t,
1272 (const char *file, char *buf, size_t bufsize)
1273 _GL_ARG_NONNULL ((1, 2)));
1274_GL_CXXALIAS_RPL (readlink, ssize_t,
1275 (const char *file, char *buf, size_t bufsize));
1276# else
1277# if !@HAVE_READLINK@
1278_GL_FUNCDECL_SYS (readlink, ssize_t,
1279 (const char *file, char *buf, size_t bufsize)
1280 _GL_ARG_NONNULL ((1, 2)));
1281# endif
1282_GL_CXXALIAS_SYS (readlink, ssize_t,
1283 (const char *file, char *buf, size_t bufsize));
1284# endif
1285_GL_CXXALIASWARN (readlink);
1286#elif defined GNULIB_POSIXCHECK
1287# undef readlink
1288# if HAVE_RAW_DECL_READLINK
1289_GL_WARN_ON_USE (readlink, "readlink is unportable - "
1290 "use gnulib module readlink for portability");
1291# endif
1292#endif
1293
1294
1295#if @GNULIB_READLINKAT@
4a626d0a
PA		 1296# if @REPLACE_READLINKAT@
1297# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1298# define readlinkat rpl_readlinkat
1299# endif
1300_GL_FUNCDECL_RPL (readlinkat, ssize_t,
1301 (int fd, char const *file, char *buf, size_t len)
1302 _GL_ARG_NONNULL ((2, 3)));
1303_GL_CXXALIAS_RPL (readlinkat, ssize_t,
1304 (int fd, char const *file, char *buf, size_t len));
1305# else
1306# if !@HAVE_READLINKAT@
8839a007
PA		 1307_GL_FUNCDECL_SYS (readlinkat, ssize_t,
1308 (int fd, char const *file, char *buf, size_t len)
1309 _GL_ARG_NONNULL ((2, 3)));
4a626d0a 1310# endif
8839a007
PA		 1311_GL_CXXALIAS_SYS (readlinkat, ssize_t,
1312 (int fd, char const *file, char *buf, size_t len));
4a626d0a 1313# endif
8839a007
PA		 1314_GL_CXXALIASWARN (readlinkat);
1315#elif defined GNULIB_POSIXCHECK
1316# undef readlinkat
1317# if HAVE_RAW_DECL_READLINKAT
1318_GL_WARN_ON_USE (readlinkat, "readlinkat is not portable - "
1319 "use gnulib module readlinkat for portability");
1320# endif
1321#endif
1322
1323
1324#if @GNULIB_RMDIR@
1325/* Remove the directory DIR. */
1326# if @REPLACE_RMDIR@
1327# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1328# define rmdir rpl_rmdir
1329# endif
1330_GL_FUNCDECL_RPL (rmdir, int, (char const *name) _GL_ARG_NONNULL ((1)));
1331_GL_CXXALIAS_RPL (rmdir, int, (char const *name));
1332# else
1333_GL_CXXALIAS_SYS (rmdir, int, (char const *name));
1334# endif
1335_GL_CXXALIASWARN (rmdir);
1336#elif defined GNULIB_POSIXCHECK
1337# undef rmdir
1338# if HAVE_RAW_DECL_RMDIR
1339_GL_WARN_ON_USE (rmdir, "rmdir is unportable - "
1340 "use gnulib module rmdir for portability");
1341# endif
1342#endif
1343
1344
1345#if @GNULIB_SETHOSTNAME@
1346/* Set the host name of the machine.
1347 The host name may or may not be fully qualified.
1348
1349 Put LEN bytes of NAME into the host name.
1350 Return 0 if successful, otherwise, set errno and return -1.
1351
1352 Platforms with no ability to set the hostname return -1 and set
1353 errno = ENOSYS. */
1354# if !@HAVE_SETHOSTNAME@ || !@HAVE_DECL_SETHOSTNAME@
1355_GL_FUNCDECL_SYS (sethostname, int, (const char *name, size_t len)
1356 _GL_ARG_NONNULL ((1)));
1357# endif
1358/* Need to cast, because on Solaris 11 2011-10, Mac OS X 10.5, IRIX 6.5
1359 and FreeBSD 6.4 the second parameter is int. On Solaris 11
1360 2011-10, the first parameter is not const. */
1361_GL_CXXALIAS_SYS_CAST (sethostname, int, (const char *name, size_t len));
1362_GL_CXXALIASWARN (sethostname);
1363#elif defined GNULIB_POSIXCHECK
1364# undef sethostname
1365# if HAVE_RAW_DECL_SETHOSTNAME
1366_GL_WARN_ON_USE (sethostname, "sethostname is unportable - "
1367 "use gnulib module sethostname for portability");
1368# endif
1369#endif
1370
1371
1372#if @GNULIB_SLEEP@
1373/* Pause the execution of the current thread for N seconds.
1374 Returns the number of seconds left to sleep.
1375 See the POSIX:2008 specification
1376 <http://pubs.opengroup.org/onlinepubs/9699919799/functions/sleep.html>. */
1377# if @REPLACE_SLEEP@
1378# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1379# undef sleep
1380# define sleep rpl_sleep
1381# endif
1382_GL_FUNCDECL_RPL (sleep, unsigned int, (unsigned int n));
1383_GL_CXXALIAS_RPL (sleep, unsigned int, (unsigned int n));
1384# else
1385# if !@HAVE_SLEEP@
1386_GL_FUNCDECL_SYS (sleep, unsigned int, (unsigned int n));
1387# endif
1388_GL_CXXALIAS_SYS (sleep, unsigned int, (unsigned int n));
1389# endif
1390_GL_CXXALIASWARN (sleep);
1391#elif defined GNULIB_POSIXCHECK
1392# undef sleep
1393# if HAVE_RAW_DECL_SLEEP
1394_GL_WARN_ON_USE (sleep, "sleep is unportable - "
1395 "use gnulib module sleep for portability");
1396# endif
1397#endif
1398
1399
1400#if @GNULIB_SYMLINK@
1401# if @REPLACE_SYMLINK@
1402# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1403# undef symlink
1404# define symlink rpl_symlink
1405# endif
1406_GL_FUNCDECL_RPL (symlink, int, (char const *contents, char const *file)
1407 _GL_ARG_NONNULL ((1, 2)));
1408_GL_CXXALIAS_RPL (symlink, int, (char const *contents, char const *file));
1409# else
1410# if !@HAVE_SYMLINK@
1411_GL_FUNCDECL_SYS (symlink, int, (char const *contents, char const *file)
1412 _GL_ARG_NONNULL ((1, 2)));
1413# endif
1414_GL_CXXALIAS_SYS (symlink, int, (char const *contents, char const *file));
1415# endif
1416_GL_CXXALIASWARN (symlink);
1417#elif defined GNULIB_POSIXCHECK
1418# undef symlink
1419# if HAVE_RAW_DECL_SYMLINK
1420_GL_WARN_ON_USE (symlink, "symlink is not portable - "
1421 "use gnulib module symlink for portability");
1422# endif
1423#endif
1424
1425
1426#if @GNULIB_SYMLINKAT@
4a626d0a
PA		 1427# if @REPLACE_SYMLINKAT@
1428# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1429# undef symlinkat
1430# define symlinkat rpl_symlinkat
1431# endif
1432_GL_FUNCDECL_RPL (symlinkat, int,
1433 (char const *contents, int fd, char const *file)
1434 _GL_ARG_NONNULL ((1, 3)));
1435_GL_CXXALIAS_RPL (symlinkat, int,
1436 (char const *contents, int fd, char const *file));
1437# else
1438# if !@HAVE_SYMLINKAT@
8839a007
PA		 1439_GL_FUNCDECL_SYS (symlinkat, int,
1440 (char const *contents, int fd, char const *file)
1441 _GL_ARG_NONNULL ((1, 3)));
4a626d0a 1442# endif
8839a007
PA		 1443_GL_CXXALIAS_SYS (symlinkat, int,
1444 (char const *contents, int fd, char const *file));
4a626d0a 1445# endif
8839a007
PA		 1446_GL_CXXALIASWARN (symlinkat);
1447#elif defined GNULIB_POSIXCHECK
1448# undef symlinkat
1449# if HAVE_RAW_DECL_SYMLINKAT
1450_GL_WARN_ON_USE (symlinkat, "symlinkat is not portable - "
1451 "use gnulib module symlinkat for portability");
1452# endif
1453#endif
1454
1455
1456#if @GNULIB_TTYNAME_R@
1457/* Store at most BUFLEN characters of the pathname of the terminal FD is
1458 open on in BUF. Return 0 on success, otherwise an error number. */
1459# if @REPLACE_TTYNAME_R@
1460# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1461# undef ttyname_r
1462# define ttyname_r rpl_ttyname_r
1463# endif
1464_GL_FUNCDECL_RPL (ttyname_r, int,
1465 (int fd, char *buf, size_t buflen) _GL_ARG_NONNULL ((2)));
1466_GL_CXXALIAS_RPL (ttyname_r, int,
1467 (int fd, char *buf, size_t buflen));
1468# else
1469# if !@HAVE_DECL_TTYNAME_R@
1470_GL_FUNCDECL_SYS (ttyname_r, int,
1471 (int fd, char *buf, size_t buflen) _GL_ARG_NONNULL ((2)));
1472# endif
1473_GL_CXXALIAS_SYS (ttyname_r, int,
1474 (int fd, char *buf, size_t buflen));
1475# endif
1476_GL_CXXALIASWARN (ttyname_r);
1477#elif defined GNULIB_POSIXCHECK
1478# undef ttyname_r
1479# if HAVE_RAW_DECL_TTYNAME_R
1480_GL_WARN_ON_USE (ttyname_r, "ttyname_r is not portable - "
1481 "use gnulib module ttyname_r for portability");
1482# endif
1483#endif
1484
1485
1486#if @GNULIB_UNLINK@
1487# if @REPLACE_UNLINK@
1488# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1489# undef unlink
1490# define unlink rpl_unlink
1491# endif
1492_GL_FUNCDECL_RPL (unlink, int, (char const *file) _GL_ARG_NONNULL ((1)));
1493_GL_CXXALIAS_RPL (unlink, int, (char const *file));
1494# else
1495_GL_CXXALIAS_SYS (unlink, int, (char const *file));
1496# endif
1497_GL_CXXALIASWARN (unlink);
1498#elif defined GNULIB_POSIXCHECK
1499# undef unlink
1500# if HAVE_RAW_DECL_UNLINK
1501_GL_WARN_ON_USE (unlink, "unlink is not portable - "
1502 "use gnulib module unlink for portability");
1503# endif
1504#endif
1505
1506
1507#if @GNULIB_UNLINKAT@
1508# if @REPLACE_UNLINKAT@
1509# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1510# undef unlinkat
1511# define unlinkat rpl_unlinkat
1512# endif
1513_GL_FUNCDECL_RPL (unlinkat, int, (int fd, char const *file, int flag)
1514 _GL_ARG_NONNULL ((2)));
1515_GL_CXXALIAS_RPL (unlinkat, int, (int fd, char const *file, int flag));
1516# else
1517# if !@HAVE_UNLINKAT@
1518_GL_FUNCDECL_SYS (unlinkat, int, (int fd, char const *file, int flag)
1519 _GL_ARG_NONNULL ((2)));
1520# endif
1521_GL_CXXALIAS_SYS (unlinkat, int, (int fd, char const *file, int flag));
1522# endif
1523_GL_CXXALIASWARN (unlinkat);
1524#elif defined GNULIB_POSIXCHECK
1525# undef unlinkat
1526# if HAVE_RAW_DECL_UNLINKAT
1527_GL_WARN_ON_USE (unlinkat, "unlinkat is not portable - "
1528 "use gnulib module openat for portability");
1529# endif
1530#endif
1531
1532
1533#if @GNULIB_USLEEP@
1534/* Pause the execution of the current thread for N microseconds.
1535 Returns 0 on completion, or -1 on range error.
1536 See the POSIX:2001 specification
1537 <http://www.opengroup.org/susv3xsh/usleep.html>. */
1538# if @REPLACE_USLEEP@
1539# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1540# undef usleep
1541# define usleep rpl_usleep
1542# endif
1543_GL_FUNCDECL_RPL (usleep, int, (useconds_t n));
1544_GL_CXXALIAS_RPL (usleep, int, (useconds_t n));
1545# else
1546# if !@HAVE_USLEEP@
1547_GL_FUNCDECL_SYS (usleep, int, (useconds_t n));
1548# endif
1549_GL_CXXALIAS_SYS (usleep, int, (useconds_t n));
1550# endif
1551_GL_CXXALIASWARN (usleep);
1552#elif defined GNULIB_POSIXCHECK
1553# undef usleep
1554# if HAVE_RAW_DECL_USLEEP
1555_GL_WARN_ON_USE (usleep, "usleep is unportable - "
1556 "use gnulib module usleep for portability");
1557# endif
1558#endif
1559
1560
1561#if @GNULIB_WRITE@
1562/* Write up to COUNT bytes starting at BUF to file descriptor FD.
1563 See the POSIX:2008 specification
1564 <http://pubs.opengroup.org/onlinepubs/9699919799/functions/write.html>. */
1565# if @REPLACE_WRITE@
1566# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1567# undef write
1568# define write rpl_write
1569# endif
1570_GL_FUNCDECL_RPL (write, ssize_t, (int fd, const void *buf, size_t count)
1571 _GL_ARG_NONNULL ((2)));
1572_GL_CXXALIAS_RPL (write, ssize_t, (int fd, const void *buf, size_t count));
1573# else
1574/* Need to cast, because on mingw, the third parameter is
1575 unsigned int count
1576 and the return type is 'int'. */
1577_GL_CXXALIAS_SYS_CAST (write, ssize_t, (int fd, const void *buf, size_t count));
1578# endif
1579_GL_CXXALIASWARN (write);
1580#endif
1581
1582_GL_INLINE_HEADER_END
1583
1584#endif /* _@GUARD_PREFIX@_UNISTD_H */
4a626d0a 1585#endif /* _GL_INCLUDING_UNISTD_H */
8839a007 1586#endif /* _@GUARD_PREFIX@_UNISTD_H */
GDB Binutils - Deliverables
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