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fchdir
Langue: en
Version: 2007-07-26 (debian - 07/07/09)
Section: 2 (Appels système)
NAME
chdir, fchdir - change working directorySYNOPSIS
#include <unistd.h>int chdir(const char *path);
int fchdir(int fd);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
fchdir(): _BSD_SOURCE || _XOPEN_SOURCE >= 500
DESCRIPTION
chdir() changes the current working directory of the calling process to the directory specified in path.fchdir() is identical to chdir(); the only difference is that the directory is given as an open file descriptor.
RETURN VALUE
On success, zero is returned. On error, -1 is returned, and errno is set appropriately.ERRORS
Depending on the file system, other errors can be returned. The more general errors for chdir() are listed below:- EACCES
- Search permission is denied for one of the components of path. (See also path_resolution(7).)
- EFAULT
- path points outside your accessible address space.
- EIO
- An I/O error occurred.
- ELOOP
- Too many symbolic links were encountered in resolving path.
- ENAMETOOLONG
- path is too long.
- ENOENT
- The file does not exist.
- ENOMEM
- Insufficient kernel memory was available.
- ENOTDIR
- A component of path is not a directory.
The general errors for fchdir() are listed below:
- EACCES
- Search permission was denied on the directory open on fd.
- EBADF
- fd is not a valid file descriptor.
CONFORMING TO
SVr4, 4.4BSD, POSIX.1-2001.NOTES
The current working directory is the starting point for interpreting relative pathnames (those not starting with '/').A child process created via fork(2) inherits its parent's current working directory. The current working directory is left unchanged by execve(2).
The prototype for fchdir() is only available if _BSD_SOURCE is defined, or _XOPEN_SOURCE is defined with the value 500.
SEE ALSO
chroot(2), getcwd(3), path_resolution(7)COLOPHON
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