chroot man page on 4.4BSD

Man page or keyword search:  
man Server   1065 pages
apropos Keyword Search (all sections)
Output format
4.4BSD logo
[printable version]

CHROOT(2)		    BSD System Calls Manual		     CHROOT(2)

     chroot — change root directory

     #include <unistd.h>

     chroot(const char *dirname);

     Dirname is the address of the pathname of a directory, terminated by an
     ASCII NUL.	 Chroot() causes dirname to become the root directory, that
     is, the starting point for path searches of pathnames beginning with ‘/’.

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

     It should be noted that chroot() has no effect on the process's current

     This call is restricted to the super-user.

     Upon successful completion, a value of 0 is returned.  Otherwise, a value
     of -1 is returned and errno is set to indicate an error.

     Chroot() will fail and the root directory will be unchanged if:

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

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

		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

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

     [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.


     The chroot function call appeared in 4.2BSD.

4.2 Berkeley Distribution	 June 4, 1993	     4.2 Berkeley Distribution

List of man pages available for 4.4BSD

Copyright (c) for man pages and the logo by the respective OS vendor.

For those who want to learn more, the polarhome community provides shell access and support.

[legal] [privacy] [GNU] [policy] [cookies] [netiquette] [sponsors] [FAQ]
Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
Vote for polarhome
Free Shell Accounts :: the biggest list on the net