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 1
48# if 1
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 1
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 1
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 1
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 1
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 !1
186/* This is for POSIX systems.  */
187#  if !defined getpagesize && defined _SC_PAGESIZE
188#   if ! (defined __VMS && __VMS_VER < 70000000)
189#    define getpagesize() sysconf (_SC_PAGESIZE)
190#   endif
191#  endif
192/* This is for older VMS.  */
193#  if !defined getpagesize && defined __VMS
194#   ifdef __ALPHA
195#    define getpagesize() 8192
196#   else
197#    define getpagesize() 512
198#   endif
199#  endif
200/* This is for BeOS.  */
201#  if !defined getpagesize && 0
202#   include <OS.h>
203#   if defined B_PAGE_SIZE
204#    define getpagesize() B_PAGE_SIZE
205#   endif
206#  endif
207/* This is for AmigaOS4.0.  */
208#  if !defined getpagesize && defined __amigaos4__
209#   define getpagesize() 2048
210#  endif
211/* This is for older Unix systems.  */
212#  if !defined getpagesize && 0
213#   include <sys/param.h>
214#   ifdef EXEC_PAGESIZE
215#    define getpagesize() EXEC_PAGESIZE
216#   else
217#    ifdef NBPG
218#     ifndef CLSIZE
219#      define CLSIZE 1
220#     endif
221#     define getpagesize() (NBPG * CLSIZE)
222#    else
223#     ifdef NBPC
224#      define getpagesize() NBPC
225#     endif
226#    endif
227#   endif
228#  endif
229# endif
230#elif defined GNULIB_POSIXCHECK
231# undef getpagesize
232# define getpagesize() \
233    (GL_LINK_WARNING ("getpagesize is unportable - " \
234                      "use gnulib module getpagesize for portability"), \
235     getpagesize ())
236#endif
237
238
239#if 1
240# if 0
241/* Change the owner of FILE to UID (if UID is not -1) and the group of FILE
242   to GID (if GID is not -1).  Do not follow symbolic links.
243   Return 0 if successful, otherwise -1 and errno set.
244   See the POSIX:2001 specification
245   <http://www.opengroup.org/susv3xsh/lchown.html>.  */
246#  define lchown rpl_lchown
247extern int lchown (char const *file, uid_t owner, gid_t group);
248# endif
249#elif defined GNULIB_POSIXCHECK
250# undef lchown
251# define lchown(f,u,g) \
252    (GL_LINK_WARNING ("lchown is unportable to pre-POSIX.1-2001 " \
253                      "systems - use gnulib module lchown for portability"), \
254     lchown (f, u, g))
255#endif
256
257
258#if 1
259# if 0
260/* Set the offset of FD relative to SEEK_SET, SEEK_CUR, or SEEK_END.
261   Return the new offset if successful, otherwise -1 and errno set.
262   See the POSIX:2001 specification
263   <http://www.opengroup.org/susv3xsh/lseek.html>.  */
264#  define lseek rpl_lseek
265   extern off_t lseek (int fd, off_t offset, int whence);
266# endif
267#elif defined GNULIB_POSIXCHECK
268# undef lseek
269# define lseek(f,o,w) \
270    (GL_LINK_WARNING ("lseek does not fail with ESPIPE on pipes on some " \
271                      "systems - use gnulib module lseek for portability"), \
272     lseek (f, o, w))
273#endif
274
275
276#if 1
277/* Read the contents of the symbolic link FILE and place the first BUFSIZE
278   bytes of it into BUF.  Return the number of bytes placed into BUF if
279   successful, otherwise -1 and errno set.
280   See the POSIX:2001 specification
281   <http://www.opengroup.org/susv3xsh/readlink.html>.  */
282# if !1
283#  include <stddef.h>
284extern int readlink (const char *file, char *buf, size_t bufsize);
285# endif
286#elif defined GNULIB_POSIXCHECK
287# undef readlink
288# define readlink(f,b,s) \
289    (GL_LINK_WARNING ("readlink is unportable - " \
290                      "use gnulib module readlink for portability"), \
291     readlink (f, b, s))
292#endif
293
294
295#if 0
296/* Pause the execution of the current thread for N seconds.
297   Returns the number of seconds left to sleep.
298   See the POSIX:2001 specification
299   <http://www.opengroup.org/susv3xsh/sleep.html>.  */
300# if !1
301extern unsigned int sleep (unsigned int n);
302# endif
303#elif defined GNULIB_POSIXCHECK
304# undef sleep
305# define sleep(n) \
306    (GL_LINK_WARNING ("sleep is unportable - " \
307                      "use gnulib module sleep for portability"), \
308     sleep (n))
309#endif
310
311
312#ifdef __cplusplus
313}
314#endif
315
316
317#endif /* _GL_UNISTD_H */
318#endif /* _GL_UNISTD_H */
319