Fixed some months ago.
http://www.freebsd.org/cgi/cvsweb.cgi -> src/usr.bin/su/su.c
revision 1.22
date: 1997/08/23 14:09:36; author: joerg; state: Exp; lines: +5 -2
Prevent a NULL dereferencation when given a garbage command line.
-- Wolfram Schneider <wosch@apfel.de> http://www.apfel.de/~wosch/