trick-chroot(1)

NAME

trick-chroot

SYNOPSIS

trick-chroot [ --libpath directory ] rootdir [ command ]

trick-chroot implements `chroot' functionality in userland. It can also be used by non-root users.

DESCRIPTION

By setting the VPATH environment variable appropiratly, and setting LD_PRELOAD to libtricks(1) the mentioned library will create an environment where the root directory will seem to be that of the first argument

trick-chroot provides a lot less security than the real (kernel) chroot, but please note that root can easily break out of a real chroot shell too. Neigther this trick-chroot nor the real chroot should be considered `safe'.

The main purpose of this script is to show an example of how to work with libtricks(1) .

Note btw that, as the dynamic linker (/lib/ld.so-linux) is statically linked, it will search the libraries in the real root, not in this chroot environment. So, you don't have to populate ${CHROOT}/lib.

OPTIONS

--libpath path: specify the path of the libtrick library. Default: /usr/lib/libtricks/

BUGS

Upon startup, `pwd' still shows the real dir, not relative to the new root dir. However, the first cd will correct this.

COPYING

libtricks is distributed under the GNU General Public License. (GPL 2.0 or greater).

AUTHOR

joost witteveen <[email protected]>