From owner-freebsd-hackers@FreeBSD.ORG  Sat Aug 13 23:12:07 2005
Return-Path: <owner-freebsd-hackers@FreeBSD.ORG>
X-Original-To: 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 86B4916A41F
	for <hackers@freebsd.org>; Sat, 13 Aug 2005 23:12:07 +0000 (GMT)
	(envelope-from gjb@gbch.net)
Received: from gw.gbch.net (gw.gbch.net [203.143.238.93])
	by mx1.FreeBSD.org (Postfix) with SMTP id 6B78F43D49
	for <hackers@freebsd.org>; Sat, 13 Aug 2005 23:12:04 +0000 (GMT)
	(envelope-from gjb@gbch.net)
Received: (qmail 37164 invoked from network); 14 Aug 2005 09:11:58 +1000
Received: from gecko.gbch.net (172.16.1.7)
	by bambi.gbch.net with SMTP; 14 Aug 2005 09:11:58 +1000
Received: (qmail 18306 invoked by uid 1001); 14 Aug 2005 09:11:57 +1000
Message-ID: <nospam-1123974717.18305@gecko.gbch.net>
Date: Sun, 14 Aug 2005 09:11:57 +1000
From: Greg Black <gjb@gbch.net>
To: =?unknown-8bit?Q?Jo=E3o_Carlos_Mendes_Lu=EDs?= <jonny@jonny.eng.br>
References: <42FD15EA.8050500@jonny.eng.br>
	<20050812233728.GA22225@odin.ac.hmc.edu>
	<42FE1781.9050403@jonny.eng.br>
Mime-Version: 1.0
Content-Type: text/plain; charset=unknown-8bit
Content-Disposition: inline
Content-Transfer-Encoding: 8bit
In-Reply-To: <42FE1781.9050403@jonny.eng.br>
User-Agent: Mutt/1.4.2.1i; gjb-muttsend.sh 1.7 2004-10-05
X-Uptime: 175 days
X-Operating-System: FreeBSD 4.10-RELEASE i386
X-Location: Brisbane, Australia; 27.49841S 152.98439E
X-URL: http://www.gbch.net/gjb.html
X-Blog: http://www.gbch.net/gjb/blog/
X-Image-URL: http://www.gbch.net/gjb/gjb-auug048.gif
X-PGP-Key-Fingerprint: EBB2 2A92 A79D 1533 AC00  3C46 5D83 B6FB 4B04 B7D6
X-Request-PGP: http://www.gbch.net/keys/4B04B7D6.asc
Cc: hackers@freebsd.org
Subject: Re: File create permissions, what am I missing?
X-BeenThere: freebsd-hackers@freebsd.org
X-Mailman-Version: 2.1.5
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: Sat, 13 Aug 2005 23:12:07 -0000

On 2005-08-13, João Carlos Mendes Luís wrote:
> Brooks Davis wrote:
> > On BSD systems, the group of a file is always the group of the directory
> > it is in.  This differs from SysV UNIX.  The resident grey-beard at work
> > feels this is a new and annoying behavior. (i.e. it wasn't always this
> > way. :)
> 
> So this is expected behavior?  Isn't this someway insecure?

It is documented behaviour (see open(2) for details).  How is it
insecure?

Greg