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1/* DO NOT EDIT! GENERATED AUTOMATICALLY! */
2/* Substitute for and wrapper around <unistd.h>.
3 Copyright (C) 2004-2007 Free Software Foundation, Inc.
4
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 3, or (at your option)
8 any later version.
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software Foundation,
17 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
18
19#ifndef _GL_UNISTD_H
20
21/* The include_next requires a split double-inclusion guard. */
22#if 1
23# include_next <unistd.h>
24#endif
25
26#ifndef _GL_UNISTD_H
27#define _GL_UNISTD_H
28
29/* mingw doesn't define the SEEK_* macros in <unistd.h>. */
30#if !(defined SEEK_CUR && defined SEEK_END && defined SEEK_SET)
31# include <stdio.h>
32#endif
33
34/* mingw fails to declare _exit in <unistd.h>. */
35#include <stdlib.h>
36
37/* The definition of GL_LINK_WARNING is copied here. */
38
39
40/* Declare overridden functions. */
41
42#ifdef __cplusplus
43extern "C" {
44#endif
45
46
47#if 0
48# if 0
49# ifndef REPLACE_CHOWN
50# define REPLACE_CHOWN 1
51# endif
52# if REPLACE_CHOWN
53/* Change the owner of FILE to UID (if UID is not -1) and the group of FILE
54 to GID (if GID is not -1). Follow symbolic links.
55 Return 0 if successful, otherwise -1 and errno set.
56 See the POSIX:2001 specification
57 <http://www.opengroup.org/susv3xsh/chown.html>. */
58# define chown rpl_chown
59extern int chown (const char *file, uid_t uid, gid_t gid);
60# endif
61# endif
62#elif defined GNULIB_POSIXCHECK
63# undef chown
64# define chown(f,u,g) \
65 (GL_LINK_WARNING ("chown fails to follow symlinks on some systems and " \
66 "doesn't treat a uid or gid of -1 on some systems - " \
67 "use gnulib module chown for portability"), \
68 chown (f, u, g))
69#endif
70
71
72#if 0
73# if !1
74/* Copy the file descriptor OLDFD into file descriptor NEWFD. Do nothing if
75 NEWFD = OLDFD, otherwise close NEWFD first if it is open.
76 Return 0 if successful, otherwise -1 and errno set.
77 See the POSIX:2001 specification
78 <http://www.opengroup.org/susv3xsh/dup2.html>. */
79extern int dup2 (int oldfd, int newfd);
80# endif
81#elif defined GNULIB_POSIXCHECK
82# undef dup2
83# define dup2(o,n) \
84 (GL_LINK_WARNING ("dup2 is unportable - " \
85 "use gnulib module dup2 for portability"), \
86 dup2 (o, n))
87#endif
88
89
90#if 0
91# if 0
92
93/* Change the process' current working directory to the directory on which
94 the given file descriptor is open.
95 Return 0 if successful, otherwise -1 and errno set.
96 See the POSIX:2001 specification
97 <http://www.opengroup.org/susv3xsh/fchdir.html>. */
98extern int fchdir (int /*fd*/);
99
100# define close rpl_close
101extern int close (int);
102# define dup rpl_dup
103extern int dup (int);
104# define dup2 rpl_dup2
105extern int dup2 (int, int);
106
107# endif
108#elif defined GNULIB_POSIXCHECK
109# undef fchdir
110# define fchdir(f) \
111 (GL_LINK_WARNING ("fchdir is unportable - " \
112 "use gnulib module fchdir for portability"), \
113 fchdir (f))
114#endif
115
116
117#if 0
118# if !1
119/* Change the size of the file to which FD is opened to become equal to LENGTH.
120 Return 0 if successful, otherwise -1 and errno set.
121 See the POSIX:2001 specification
122 <http://www.opengroup.org/susv3xsh/ftruncate.html>. */
123extern int ftruncate (int fd, off_t length);
124# endif
125#elif defined GNULIB_POSIXCHECK
126# undef ftruncate
127# define ftruncate(f,l) \
128 (GL_LINK_WARNING ("ftruncate is unportable - " \
129 "use gnulib module ftruncate for portability"), \
130 ftruncate (f, l))
131#endif
132
133
134#if 0
135/* Include the headers that might declare getcwd so that they will not
136 cause confusion if included after this file. */
137# include <stdlib.h>
138# if 0
139/* Get the name of the current working directory, and put it in SIZE bytes
140 of BUF.
141 Return BUF if successful, or NULL if the directory couldn't be determined
142 or SIZE was too small.
143 See the POSIX:2001 specification
144 <http://www.opengroup.org/susv3xsh/getcwd.html>.
145 Additionally, the gnulib module 'getcwd' guarantees the following GNU
146 extension: If BUF is NULL, an array is allocated with 'malloc'; the array
147 is SIZE bytes long, unless SIZE == 0, in which case it is as big as
148 necessary. */
149# define getcwd rpl_getcwd
150extern char * getcwd (char *buf, size_t size);
151# endif
152#elif defined GNULIB_POSIXCHECK
153# undef getcwd
154# define getcwd(b,s) \
155 (GL_LINK_WARNING ("getcwd is unportable - " \
156 "use gnulib module getcwd for portability"), \
157 getcwd (b, s))
158#endif
159
160
161#if 0
162/* Copies the user's login name to NAME.
163 The array pointed to by NAME has room for SIZE bytes.
164
165 Returns 0 if successful. Upon error, an error number is returned, or -1 in
166 the case that the login name cannot be found but no specific error is
167 provided (this case is hopefully rare but is left open by the POSIX spec).
168
169 See <http://www.opengroup.org/susv3xsh/getlogin.html>.
170 */
171# if !1
172# include <stddef.h>
173extern int getlogin_r (char *name, size_t size);
174# endif
175#elif defined GNULIB_POSIXCHECK
176# undef getlogin_r
177# define getlogin_r(n,s) \
178 (GL_LINK_WARNING ("getlogin_r is unportable - " \
179 "use gnulib module getlogin_r for portability"), \
180 getlogin_r (n, s))
181#endif
182
183
184#if 0
185# if 0
186# define getpagesize rpl_getpagesize
187extern int getpagesize (void);
188# elif !1
189/* This is for POSIX systems. */
190# if !defined getpagesize && defined _SC_PAGESIZE
191# if ! (defined __VMS && __VMS_VER < 70000000)
192# define getpagesize() sysconf (_SC_PAGESIZE)
193# endif
194# endif
195/* This is for older VMS. */
196# if !defined getpagesize && defined __VMS
197# ifdef __ALPHA
198# define getpagesize() 8192
199# else
200# define getpagesize() 512
201# endif
202# endif
203/* This is for BeOS. */
204# if !defined getpagesize && 0
205# include <OS.h>
206# if defined B_PAGE_SIZE
207# define getpagesize() B_PAGE_SIZE
208# endif
209# endif
210/* This is for AmigaOS4.0. */
211# if !defined getpagesize && defined __amigaos4__
212# define getpagesize() 2048
213# endif
214/* This is for older Unix systems. */
215# if !defined getpagesize && 0
216# include <sys/param.h>
217# ifdef EXEC_PAGESIZE
218# define getpagesize() EXEC_PAGESIZE
219# else
220# ifdef NBPG
221# ifndef CLSIZE
222# define CLSIZE 1
223# endif
224# define getpagesize() (NBPG * CLSIZE)
225# else
226# ifdef NBPC
227# define getpagesize() NBPC
228# endif
229# endif
230# endif
231# endif
232# endif
233#elif defined GNULIB_POSIXCHECK
234# undef getpagesize
235# define getpagesize() \
236 (GL_LINK_WARNING ("getpagesize is unportable - " \
237 "use gnulib module getpagesize for portability"), \
238 getpagesize ())
239#endif
240
241
242#if 0
243# if 0
244/* Change the owner of FILE to UID (if UID is not -1) and the group of FILE
245 to GID (if GID is not -1). Do not follow symbolic links.
246 Return 0 if successful, otherwise -1 and errno set.
247 See the POSIX:2001 specification
248 <http://www.opengroup.org/susv3xsh/lchown.html>. */
249# define lchown rpl_lchown
250extern int lchown (char const *file, uid_t owner, gid_t group);
251# endif
252#elif defined GNULIB_POSIXCHECK
253# undef lchown
254# define lchown(f,u,g) \
255 (GL_LINK_WARNING ("lchown is unportable to pre-POSIX.1-2001 " \
256 "systems - use gnulib module lchown for portability"), \
257 lchown (f, u, g))
258#endif
259
260
261#if 0
262# if 0
263/* Set the offset of FD relative to SEEK_SET, SEEK_CUR, or SEEK_END.
264 Return the new offset if successful, otherwise -1 and errno set.
265 See the POSIX:2001 specification
266 <http://www.opengroup.org/susv3xsh/lseek.html>. */
267# define lseek rpl_lseek
268 extern off_t lseek (int fd, off_t offset, int whence);
269# endif
270#elif defined GNULIB_POSIXCHECK
271# undef lseek
272# define lseek(f,o,w) \
273 (GL_LINK_WARNING ("lseek does not fail with ESPIPE on pipes on some " \
274 "systems - use gnulib module lseek for portability"), \
275 lseek (f, o, w))
276#endif
277
278
279#if 0
280/* Read the contents of the symbolic link FILE and place the first BUFSIZE
281 bytes of it into BUF. Return the number of bytes placed into BUF if
282 successful, otherwise -1 and errno set.
283 See the POSIX:2001 specification
284 <http://www.opengroup.org/susv3xsh/readlink.html>. */
285# if !1
286# include <stddef.h>
287extern int readlink (const char *file, char *buf, size_t bufsize);
288# endif
289#elif defined GNULIB_POSIXCHECK
290# undef readlink
291# define readlink(f,b,s) \
292 (GL_LINK_WARNING ("readlink is unportable - " \
293 "use gnulib module readlink for portability"), \
294 readlink (f, b, s))
295#endif
296
297
298#if 0
299/* Pause the execution of the current thread for N seconds.
300 Returns the number of seconds left to sleep.
301 See the POSIX:2001 specification
302 <http://www.opengroup.org/susv3xsh/sleep.html>. */
303# if !1
304extern unsigned int sleep (unsigned int n);
305# endif
306#elif defined GNULIB_POSIXCHECK
307# undef sleep
308# define sleep(n) \
309 (GL_LINK_WARNING ("sleep is unportable - " \
310 "use gnulib module sleep for portability"), \
311 sleep (n))
312#endif
313
314
315#ifdef __cplusplus
316}
317#endif
318
319
320#endif /* _GL_UNISTD_H */
321#endif /* _GL_UNISTD_H */