From: utzoo!decvax!decwrl!sun!megatest!fortune!hpda!hplabs!sri-unix!rsi!forrest%Shasta@SU-SCORE
Newsgroups: net.unix-wizards
Title: Directory depth limit for normal users
Article-I.D.: sri-arpa.801
Posted: Fri Mar 18 09:27:33 1983
Received: Tue Apr  5 01:57:39 1983

I believe that MKNOD is a su-only call (for creating directories) in
most systems.  The easiest way to impose a depth for
normal users may be to modify mkdir to count the number of
'/'s from the user's login path.  Since the average user can
only access MKNOD through mkdir, this should solve the problem
with no kernel hacking.

Forrest Howard