From owner-freebsd-hackers@FreeBSD.ORG Tue Aug 2 13:08:14 2005 Return-Path: X-Original-To: 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 B9D8016A41F for ; Tue, 2 Aug 2005 13:08:14 +0000 (GMT) (envelope-from vd@datamax.bg) Received: from jengal.datamax.bg (jengal.datamax.bg [82.103.104.21]) by mx1.FreeBSD.org (Postfix) with ESMTP id 426F043D49 for ; Tue, 2 Aug 2005 13:08:14 +0000 (GMT) (envelope-from vd@datamax.bg) Received: from sinanica.bg.datamax (sinanica.bg.datamax [192.168.10.1]) by jengal.datamax.bg (Postfix) with QMQP id 2128D87C8 for ; Tue, 2 Aug 2005 16:08:13 +0300 (EEST) Received: (nullmailer pid 23329 invoked by uid 1004); Tue, 02 Aug 2005 13:08:12 -0000 Date: Tue, 2 Aug 2005 16:08:12 +0300 From: Vasil Dimov To: freebsd-hackers@freebsd.org Message-ID: <20050802130812.GA23261@sinanica.bg.datamax> References: <51934.68.95.232.238.1122957425.squirrel@68.95.232.238> <20050802062937.GA31485@sinanica.bg.datamax> <42EF5072.30808@freesbie.org> <20050802110632.GB85997@sinanica.bg.datamax> <20050802111535.GA2468@britannica.bec.de> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="huq684BweRXVnRxX" Content-Disposition: inline In-Reply-To: <20050802111535.GA2468@britannica.bec.de> X-OS: FreeBSD 5.4-STABLE User-Agent: Mutt/1.5.9i Subject: Re: [patch] rc.d/tmp (silly mkdir usage) X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: vd@datamax.bg List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 02 Aug 2005 13:08:14 -0000 --huq684BweRXVnRxX Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Aug 02, 2005 at 01:15:35PM +0200, Joerg Sonnenberger wrote: > On Tue, Aug 02, 2005 at 02:06:32PM +0300, Vasil Dimov wrote: > > On Tue, Aug 02, 2005 at 12:52:34PM +0200, Dario Freni wrote: > > > Vasil Dimov wrote: > > > > Even we can use > > > > if [ -d /tmp -a -w /tmp ] ; then > > > > or (which is equivalent) > > > > if [ -d /tmp ] && [ -w /tmp ] ; then > > > > and save external commands (mkdir) execution and directory > > > > creation/deletion at all. > > >=20 > > > You can't use test -w here. The script is checking if there is a > > > read-only filesystem. -w checks only the file flags (according to the > > > man page, at least). > > >=20 > > That's correct, -w cannot be used to check read-only filesystem. >=20 > Actually, you can. That's not portable behaviour though. >=20 Well, look what I discovered: # mount |grep read-only /usr/ports on /mnt/ar0s2d/usr/ports5 (nullfs, local, read-only) # sh -c '[ -w /mnt/ar0s2d/usr/ports5 ] && echo writeable' # bash -c '[ -w /mnt/ar0s2d/usr/ports5 ] && echo writeable' writeable # One should really not rely on this. --huq684BweRXVnRxX Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- iD8DBQFC73A8Fw6SP/bBpCARAl+RAJ9XxERDhYhKFrPwIisF2seD0cQHKwCgyvGT Iu2nX5+E1GiolRIsZSOFh8Y= =fHyP -----END PGP SIGNATURE----- --huq684BweRXVnRxX--