+++ /dev/null
-/* Substitute for and wrapper around <unistd.h>.
- Copyright (C) 2004-2007 Free Software Foundation, Inc.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software Foundation,
- Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
-
-#ifndef _GL_UNISTD_H
-#define _GL_UNISTD_H
-
-#if @HAVE_UNISTD_H@
-# include @ABSOLUTE_UNISTD_H@
-#endif
-
-
-/* The definition of GL_LINK_WARNING is copied here. */
-
-
-/* Declare overridden functions. */
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-
-#if @GNULIB_CHOWN@
-# if @REPLACE_CHOWN@
-/* Change the owner of FILE to UID (if UID is not -1) and the group of FILE
- to GID (if GID is not -1).
- Return 0 if successful, otherwise -1 and errno set.
- See the POSIX:2001 specification
- <http://www.opengroup.org/susv3xsh/chown.html>. */
-# define chown rpl_chown
-extern int chown (const char *file, uid_t uid, gid_t gid);
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef chown
-# define chown(f,u,g) \
- (GL_LINK_WARNING ("chown fails to follow symlinks on some systems and " \
- "doesn't treat a uid or gid of -1 on some systems - " \
- "use gnulib module chown for portability"), \
- chown (f, u, g))
-#endif
-
-
-#if @GNULIB_DUP2@
-# if !@HAVE_DUP2@
-/* Copy the file descriptor OLDFD into file descriptor NEWFD. Do nothing if
- NEWFD = OLDFD, otherwise close NEWFD first if it is open.
- Return 0 if successful, otherwise -1 and errno set.
- See the POSIX:2001 specification
- <http://www.opengroup.org/susv3xsh/dup2.html>. */
-extern int dup2 (int oldfd, int newfd);
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef dup2
-# define dup2(o,n) \
- (GL_LINK_WARNING ("dup2 is unportable - " \
- "use gnulib module dup2 for portability"), \
- dup2 (o, n))
-#endif
-
-
-#if @GNULIB_FCHDIR@
-# if @REPLACE_FCHDIR@
-
-/* Change the process' current working directory to the directory on which
- the given file descriptor is open.
- Return 0 if successful, otherwise -1 and errno set.
- See the POSIX:2001 specification
- <http://www.opengroup.org/susv3xsh/fchdir.html>. */
-extern int fchdir (int /*fd*/);
-
-# define close rpl_close
-extern int close (int);
-# define dup rpl_dup
-extern int dup (int);
-# define dup2 rpl_dup2
-extern int dup2 (int, int);
-
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef fchdir
-# define fchdir(f) \
- (GL_LINK_WARNING ("fchdir is unportable - " \
- "use gnulib module fchdir for portability"), \
- fchdir (f))
-#endif
-
-
-#if @GNULIB_FTRUNCATE@
-# if !@HAVE_FTRUNCATE@
-/* Change the size of the file to which FD is opened to become equal to LENGTH.
- Return 0 if successful, otherwise -1 and errno set.
- See the POSIX:2001 specification
- <http://www.opengroup.org/susv3xsh/ftruncate.html>. */
-extern int ftruncate (int fd, off_t length);
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef ftruncate
-# define ftruncate(f,l) \
- (GL_LINK_WARNING ("ftruncate is unportable - " \
- "use gnulib module ftruncate for portability"), \
- ftruncate (f, l))
-#endif
-
-
-#if @GNULIB_GETCWD@
-/* Include the headers that might declare getcwd so that they will not
- cause confusion if included after this file. */
-# include <stdlib.h>
-# if @REPLACE_GETCWD@
-/* Get the name of the current working directory, and put it in SIZE bytes
- of BUF.
- Return BUF if successful, or NULL if the directory couldn't be determined
- or SIZE was too small.
- See the POSIX:2001 specification
- <http://www.opengroup.org/susv3xsh/getcwd.html>.
- Additionally, the gnulib module 'getcwd' guarantees the following GNU
- extension: If BUF is NULL, an array is allocated with 'malloc'; the array
- is SIZE bytes long, unless SIZE == 0, in which case it is as big as
- necessary. */
-# define getcwd rpl_getcwd
-extern char * getcwd (char *buf, size_t size);
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef getcwd
-# define getcwd(b,s) \
- (GL_LINK_WARNING ("getcwd is unportable - " \
- "use gnulib module getcwd for portability"), \
- getcwd (b, s))
-#endif
-
-
-#if @GNULIB_GETLOGIN_R@
-/* Copies the user's login name to NAME.
- The array pointed to by NAME has room for SIZE bytes.
-
- Returns 0 if successful. Upon error, an error number is returned, or -1 in
- the case that the login name cannot be found but no specific error is
- provided (this case is hopefully rare but is left open by the POSIX spec).
-
- See <http://www.opengroup.org/susv3xsh/getlogin.html>.
- */
-# if !@HAVE_DECL_GETLOGIN_R@
-# include <stddef.h>
-extern int getlogin_r (char *name, size_t size);
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef getlogin_r
-# define getlogin_r(n,s) \
- (GL_LINK_WARNING ("getlogin_r is unportable - " \
- "use gnulib module getlogin_r for portability"), \
- getlogin_r (n, s))
-#endif
-
-
-#if @GNULIB_READLINK@
-/* Read the contents of the symbolic link FILE and place the first BUFSIZE
- bytes of it into BUF. Return the number of bytes placed into BUF if
- successful, otherwise -1 and errno set.
- See the POSIX:2001 specification
- <http://www.opengroup.org/susv3xsh/readlink.html>. */
-# if !@HAVE_READLINK@
-# include <stddef.h>
-extern int readlink (const char *file, char *buf, size_t bufsize);
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef readlink
-# define readlink(f,b,s) \
- (GL_LINK_WARNING ("readlink is unportable - " \
- "use gnulib module readlink for portability"), \
- readlink (f, b, s))
-#endif
-
-
-#ifdef __cplusplus
-}
-#endif
-
-
-#endif /* _GL_UNISTD_H */
projects / debian / gzip / blobdiff