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33.

EXAMPLES

34.

Here is an example session with B<fakeroot>. Notice that inside the fake root environment file manipulation that requires root privileges succeeds, but is not really happening.

35.

$ whoami
joost
$ fakeroot /bin/bash
# whoami
root
# mknod hda3 b 3 1
# ls -ld hda3
brw-r--r-- 1 root root 3, 1 Jul 2 22:58 hda3
# chown joost:root hda3
# ls -ld hda3
brw-r--r-- 1 joost root 3, 1 Jul 2 22:58 hda3
# ls -ld /
drwxr-xr-x 20 root root 1024 Jun 17 21:50 /
# chown joost:users /
# chmod a+w /
# ls -ld /
drwxrwxrwx 20 joost users 1024 Jun 17 21:50 /
# exit
$ ls -ld /
drwxr-xr-x 20 root root 1024 Jun 17 21:50 //
$ ls -ld hda3
-rw-r--r-- 1 joost users 0 Jul 2 22:58 hda3

36.

Only the effects that user B<joost> could do anyway happen for real.

37.

B<fakeroot> was specifically written to enable users to create Debian GNU/Linux packages (in the B<deb>(5) format) without giving them root privileges. This can be done by commands like B<dpkg-buildpackage -rfakeroot> or B<debuild -rfakeroot> (actually, -rfakeroot is default in debuild nowadays, so you don't need that argument).

38.

SECURITY ASPECTS

39.

B<fakeroot> is a regular, non-setuid program. It does not enhance a user's privileges, or decrease the system's security.

40.

FILES

41.

I</usr/lib/*/libfakeroot-*.so> The shared library containing the wrapper functions.

42.

ENVIRONMENT