CHDIR(2) System Calls CHDIR(2)
NAME
chdir, fchdir - change working directory
SYNOPSIS
#include <unistd.h>
int chdir(
const char *path);
int fchdir(
int fildes);
DESCRIPTION
The
chdir() and
fchdir() functions cause a directory pointed to by
path or
fildes to become the current working directory. The starting
point for path searches for path names not beginning with
/ (slash).
The
path argument points to the path name of a directory. The
fildes argument is an open file descriptor of a directory.
For a directory to become the current directory, a process must have
execute (search) access to the directory.
RETURN VALUES
Upon successful completion,
0 is returned. Otherwise,
-1 is returned,
the current working directory is unchanged, and
errno is set to
indicate the error.
ERRORS
The
chdir() function will fail if:
EACCES Search permission is denied for any component of the
path name.
EFAULT The
path argument points to an illegal address.
EINTR A signal was caught during the execution of the
chdir() function.
EIO An I/O error occurred while reading from or writing
to the file system.
ELOOP Too many symbolic links were encountered in
translating
path.
ENAMETOOLONG The length of the
path argument exceeds
PATH_MAX, or
the length of a
path component exceeds
NAME_MAX while
_POSIX_NO_TRUNC is in effect.
ENOENT Either a component of the path prefix or the
directory named by
path does not exist or is a null
pathname.
ENOLINK The
path argument points to a remote machine and the
link to that machine is no longer active.
ENOTDIR A component of the path name is not a directory.
The
fchdir() function will fail if:
EACCES Search permission is denied for
fildes.
EBADF The
fildes argument is not an open file descriptor.
EINTR A signal was caught during the execution of the
fchdir() function.
EIO An I/O error occurred while reading from or writing to the
file system.
ENOLINK The
fildes argument points to a remote machine and the
link to that machine is no longer active.
ENOTDIR The open file descriptor
fildes does not refer to a
directory.
ATTRIBUTES
See
attributes(7) for descriptions of the following attributes:
+--------------------+-------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-------------------+
|Interface Stability | Standard |
+--------------------+-------------------+
|MT-Level | Async-Signal-Safe |
+--------------------+-------------------+
SEE ALSO
chroot(2),
attributes(7),
standards(7) December 28, 1996 CHDIR(2)
