From mboxrd@z Thu Jan  1 00:00:00 1970
Received: by archone.tamu.edu id <18907>; Thu, 12 Dec 1991 10:30:08 -0600
From: Byron Rakitzis <byron>
To: rc
Subject: Re: a tricky question
Message-Id: <91Dec12.103008cst.18907@archone.tamu.edu>
Date: Thu, 12 Dec 1991 09:58:56 -0600

I just thought of a hole: importing functions from the environment.
e.g.,

foo:
	#!/bin/rc --
	echo hi

can be foiled with

; fn echo {/bin/sh}
; foo

or even

	#!/bin/rc --
	exec mount /pcfs

can be foiled with

; fn exec {/bin/sh}
; foo

Then again, Duff mentions "-p" in one of the rc papers, so this one
does not get any credit.

Might it be worth adding "-p" to rc, or would it encourage a false
sense of security? I guess that's what I am driving at.