CHROOT(2)							System Calls Manual							 CHROOT(2)

NAME

       chroot - change root directory

SYNOPSIS

       #include <unistd.h>

       int chroot(const 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 direc-
       tory, 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.

       [ENAMETOOLONG] The path name exceeds PATH_MAX 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.  (Minix-vmd)

       [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 ALSO

       chdir(2).

4.2 Berkeley Distribution					  August 26, 1985							 CHROOT(2)