chroot(2) security

[Guy Harris]

> As an aside, if /bin were not readable, no one could use PATH to find
> anything in it, not tooo cool, if you ask me...

To be precise, if "/bin" were searchable but not readable, no one *using the
C shell* could use PATH to find anything in it, presumably because "rehash"
scans the directories in the PATH; neither the Bourne shell nor the Korn
shell, whose similar hashing mechanisms add items to their tables only when
a command is actually run, have any problem.
-- 
	Guy Harris
	{ihnp4, decvax, seismo, decwrl, ...}!sun!guy
	guy at sun.com (or guy at sun.arpa)