chdir, fchdir - change working directory
#include <unistd.h>
int chdir(const char *path);
int fchdir(int fd);
Feature Test Macro Requirements for glibc (see
feature_test_macros(7)):
fchdir():
_XOPEN_SOURCE >= 500
|| /* Since glibc 2.12: */ _POSIX_C_SOURCE >= 200809L
|| /* Glibc up to and including 2.19: */ _BSD_SOURCE
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.
On success, zero is returned. On error, -1 is returned, and
errno is set
appropriately.
Depending on the filesystem, 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 directory specified in path 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.
- ENOTDIR
- fd does not refer to a directory.
POSIX.1-2001, POSIX.1-2008, SVr4, 4.4BSD.
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).
chroot(2),
getcwd(3),
path_resolution(7)