Copyright (c) 1980 Regents of the University of California.
All rights reserved. The Berkeley software License Agreement
specifies the terms and conditions for redistribution.

@(#)chdir.2 6.6 (Berkeley) 07/23/90

C 4 chdir, fchdir - change current working directory

chdir(path)
char *path;

fchdir(fd)
int fd;

Path is the pathname of a directory. Chdir causes this directory to become the current working directory, the starting point for path names not beginning with ``/''.

Fchdir causes the directory referenced by fd to become the current working directory, the starting point for path names not beginning with ``/''.

In order for a directory to become the current directory, a process must have execute (search) access to the directory.

Upon successful completion, a value of 0 is returned. Otherwise, a value of -1 is returned and errno is set to indicate the error. Chdir will fail and the current working directory will be unchanged if one or more of the following are true:

15 [ENOTDIR] A component of the path prefix is not a directory.

15 [EINVAL] The pathname contains a character with the high-order bit set.

15 [ENAMETOOLONG] A component of a pathname exceeded 255 characters, or an entire path name exceeded 1023 characters.

15 [ENOENT] The named directory does not exist.

15 [ELOOP] Too many symbolic links were encountered in translating the pathname.

15 [EACCES] Search permission is denied for any component of the path name.

15 [EFAULT] Path points outside the process's allocated address space.

15 [EIO] An I/O error occurred while reading from or writing to the file system.

Fchdir will fail and the current working directory will be unchanged if one or more of the following are true:

15 [EACCES] Search permission is denied for the directory referenced by the file descriptor.

15 [ENOTDIR] The file descriptor does not reference a directory.

15 EBADF The argument fd is not a valid file descriptor.

chroot(2)