From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Andreas Schwab Newsgroups: gmane.emacs.devel Subject: Re: unicode build: "comparison is always true" warnings Date: Sat, 24 Nov 2007 15:16:38 +0100 Message-ID: References: <87oddltv7f.fsf@everybody.org> <87hcjcoo2x.fsf@everybody.org> <87wss8mypv.fsf@everybody.org> <87sl2wmmyk.fsf@everybody.org> <4747EF20.7050604@swipnet.se> <87wss7ubth.fsf@free.fr> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable X-Trace: ger.gmane.org 1195913817 18532 80.91.229.12 (24 Nov 2007 14:16:57 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sat, 24 Nov 2007 14:16:57 +0000 (UTC) Cc: emacs-devel@gnu.org To: Matthieu Lemerre Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sat Nov 24 15:17:04 2007 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.50) id 1Ivvob-0006uV-Uj for ged-emacs-devel@m.gmane.org; Sat, 24 Nov 2007 15:17:02 +0100 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1IvvoN-0001Vt-1i for ged-emacs-devel@m.gmane.org; Sat, 24 Nov 2007 09:16:47 -0500 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1IvvoJ-0001VD-17 for emacs-devel@gnu.org; Sat, 24 Nov 2007 09:16:43 -0500 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1IvvoH-0001Uu-Ay for emacs-devel@gnu.org; Sat, 24 Nov 2007 09:16:42 -0500 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1IvvoH-0001Uo-5i for emacs-devel@gnu.org; Sat, 24 Nov 2007 09:16:41 -0500 Original-Received: from mx2.suse.de ([195.135.220.15]) by monty-python.gnu.org with esmtps (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1IvvoG-0005E4-Q0 for emacs-devel@gnu.org; Sat, 24 Nov 2007 09:16:41 -0500 Original-Received: from Relay1.suse.de (mail2.suse.de [195.135.221.8]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx2.suse.de (Postfix) with ESMTP id AE2DD2BE73; Sat, 24 Nov 2007 15:16:38 +0100 (CET) X-Yow: PUNK ROCK!! DISCO DUCK!! BIRTH CONTROL!! In-Reply-To: <87wss7ubth.fsf@free.fr> (Matthieu Lemerre's message of "Sat\, 24 Nov 2007 12\:23\:22 +0100") User-Agent: Gnus/5.110006 (No Gnus v0.6) Emacs/22.1 (gnu/linux) X-detected-kernel: by monty-python.gnu.org: Linux 2.4-2.6 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:84053 Archived-At: Matthieu Lemerre writes: > Andreas Schwab writes: >> >> In which way it is different from what mkstemp is doing? >> > > When you use mktemp, you have to use two operations: > 1/Create a file name with mktemp > 2/Open it That's the same what mkstemp does. > An attacker could create a symlink with this name file between these > two operations, thus the file would be erased. That does not happen, because the open will fail when the file already exists. Andreas. --=20 Andreas Schwab, SuSE Labs, schwab@suse.de SuSE Linux Products GmbH, Maxfeldstra=DFe 5, 90409 N=FCrnberg, Germany PGP key fingerprint =3D 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED= 5 "And now for something completely different."