From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Matthieu Lemerre Newsgroups: gmane.emacs.devel Subject: Re: unicode build: "comparison is always true" warnings Date: Sat, 24 Nov 2007 15:49:48 +0100 Message-ID: <87bq9ju29f.fsf@free.fr> 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=us-ascii X-Trace: ger.gmane.org 1195915653 23028 80.91.229.12 (24 Nov 2007 14:47:33 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sat, 24 Nov 2007 14:47:33 +0000 (UTC) To: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sat Nov 24 15:47:40 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 1IvwIB-000741-DO for ged-emacs-devel@m.gmane.org; Sat, 24 Nov 2007 15:47:35 +0100 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1IvwHw-0005gO-Kz for ged-emacs-devel@m.gmane.org; Sat, 24 Nov 2007 09:47:20 -0500 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1IvwHt-0005g1-K4 for emacs-devel@gnu.org; Sat, 24 Nov 2007 09:47:17 -0500 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1IvwHr-0005fp-6A for emacs-devel@gnu.org; Sat, 24 Nov 2007 09:47:16 -0500 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1IvwHr-0005fm-1G for emacs-devel@gnu.org; Sat, 24 Nov 2007 09:47:15 -0500 Original-Received: from main.gmane.org ([80.91.229.2] helo=ciao.gmane.org) by monty-python.gnu.org with esmtps (TLS-1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1IvwHq-0006Z6-LK for emacs-devel@gnu.org; Sat, 24 Nov 2007 09:47:14 -0500 Original-Received: from list by ciao.gmane.org with local (Exim 4.43) id 1IvwHe-0007dO-OA for emacs-devel@gnu.org; Sat, 24 Nov 2007 14:47:02 +0000 Original-Received: from lemerre3.rez-gif.supelec.fr ([160.228.154.36]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 24 Nov 2007 14:47:02 +0000 Original-Received: from racin by lemerre3.rez-gif.supelec.fr with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 24 Nov 2007 14:47:02 +0000 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 12 Original-X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: lemerre3.rez-gif.supelec.fr User-Agent: Gnus/5.11 (Gnus v5.11) Emacs/22.1 (gnu/linux) Cancel-Lock: sha1:5tDyRPH92oBjPGJ4A4zKgytmveQ= X-detected-kernel: by monty-python.gnu.org: Linux 2.6, seldom 2.4 (older, 4) 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:84054 Archived-At: >> 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. You're right, this is the meaning of O_EXCL, that I had forgotten. Then I agree with you; mkstemp is just a commodity.