CHROOT(2)CHROOT(2)NAMEchroot - change root directory
SYNOPSISchroot(dirname)
char *dirname;
DESCRIPTION
Dirname is the address of the pathname of a directory, terminated by a
null byte. Chroot causes this directory to become the root directory,
the starting point for path names beginning with ``/''.
In order for a directory to become the root directory a process must
have execute (search) access to the directory.
This call is restricted to the super-user.
RETURN VALUE
Upon successful completion, a value of 0 is returned. Otherwise, a
value of -1 is returned and errno is set to indicate an error.
ERRORS
Chroot will fail and the root directory will be unchanged if one or
more of the following are true:
[ENOTDIR] A component of the path name is not a directory.
[EINVAL] The pathname contains a character with the high-order
bit set.
[ENAMETOOLONG] A component of a pathname exceeded 255 characters, or an
entire path name exceeded 1023 characters.
[ENOENT] The named directory does not exist.
[EACCES] Search permission is denied for any component of the
path name.
[ELOOP] Too many symbolic links were encountered in translating
the pathname.
[EFAULT] Path points outside the process's allocated address
space.
[EIO] An I/O error occurred while reading from or writing to
the file system.
SEE ALSOchdir(2)4.2 Berkeley Distribution August 26, 1985 CHROOT(2)