From owner-freebsd-hackers@FreeBSD.ORG  Tue Jun 22 12:17:36 2004
Return-Path: <owner-freebsd-hackers@FreeBSD.ORG>
Delivered-To: freebsd-hackers@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id EA91E16A4CE
	for <freebsd-hackers@freebsd.org>;
	Tue, 22 Jun 2004 12:17:36 +0000 (GMT)
Received: from mail806.megamailservers.com
	(mail806.carrierinternetsolutions.com [69.49.106.16])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 73A4543D1D
	for <freebsd-hackers@freebsd.org>;
	Tue, 22 Jun 2004 12:17:36 +0000 (GMT)
	(envelope-from strick@covad.net)
X-POP-User: strick.covad.net
Received: from mist.nodomain (h-67-101-100-248.snfccasy.dynamic.covad.net
	[67.101.100.248])i5MCHZFK008766
	for <freebsd-hackers@freebsd.org>; Tue, 22 Jun 2004 08:17:35 -0400
Received: from mist.nodomain (localhost [127.0.0.1])
	by mist.nodomain (8.12.11/8.12.11) with ESMTP id i5MCHYlS003486;
	Tue, 22 Jun 2004 05:17:34 -0700 (PDT)
	(envelope-from dan@mist.nodomain)
Received: (from dan@localhost)
	by mist.nodomain (8.12.11/8.12.11/Submit) id i5MCHYvj003485;
	Tue, 22 Jun 2004 05:17:34 -0700 (PDT)
	(envelope-from dan)
Date: Tue, 22 Jun 2004 05:17:34 -0700 (PDT)
From: Dan Strick <strick@covad.net>
Message-Id: <200406221217.i5MCHYvj003485@mist.nodomain>
To: freebsd-hackers@freebsd.org
cc: dan@mist.nodomain
Subject: Re: Sticky/sgid/suid bits safe on regular files?
X-BeenThere: freebsd-hackers@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: Technical Discussions relating to FreeBSD
	<freebsd-hackers.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>,
	<mailto:freebsd-hackers-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-hackers>
List-Post: <mailto:freebsd-hackers@freebsd.org>
List-Help: <mailto:freebsd-hackers-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>,
	<mailto:freebsd-hackers-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 22 Jun 2004 12:17:37 -0000

Daniel O'Connor wrote:
>>
> I think he wanted to use sticky/sgid/suid because they get removed
> when the file is changed.
>>

and Dag-Erling S?rgrav responded:
>>
> no they don't.
>>

Actually, they do.  (just the sgid/suid bits)

I believe this was an ancient BSD security enhancement in case
someone accidentally left a world writeable suid file around.

Dan Strick