From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Laimonas =?UTF-8?Q?V=C4=97bra?= Newsgroups: gmane.emacs.bugs Subject: bug#6784: 24.0.50; cmdproxy incosistency with command pathnames Date: Tue, 03 Aug 2010 23:57:16 +0300 Message-ID: <4C5882AC.5050201@gmail.com> References: <87iq3radvf.fsf@telefonica.net> <83pqxzy5me.fsf@gnu.org> <87ocdj8tyh.fsf@telefonica.net> <4C585DAB.5030609@gmail.com> <83mxt3xzqh.fsf@gnu.org> <4C5878E2.1020402@gmail.com> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Trace: dough.gmane.org 1280869788 25734 80.91.229.12 (3 Aug 2010 21:09:48 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Tue, 3 Aug 2010 21:09:48 +0000 (UTC) Cc: 6784@debbugs.gnu.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Tue Aug 03 23:09:47 2010 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1OgOim-0007T0-94 for geb-bug-gnu-emacs@m.gmane.org; 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c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:content-type:content-transfer-encoding; b=iKO5nfCHM+3KolbUw+qVfOYRNzAEfYrQx3db8cdxZxCX9gMQAcgVi6RRaB4RB7B0eL 1HBZlyTI4OGir3Zu8Eqjjo2CPX4EtGb88mBVK/JqvZnXr0mjgTW1lICaYCY+vLKcpn+q S5Cv6IC1/NnuI2v1nI1sq5HST72wLBTd6FWEk= Original-Received: by 10.14.127.3 with SMTP id c3mr2478866eei.70.1280869040036; Tue, 03 Aug 2010 13:57:20 -0700 (PDT) Original-Received: from [192.168.1.72] (78-58-76-89.static.zebra.lt [78.58.76.89]) by mx.google.com with ESMTPS id v8sm11450741eeh.14.2010.08.03.13.57.18 (version=TLSv1/SSLv3 cipher=RC4-MD5); Tue, 03 Aug 2010 13:57:19 -0700 (PDT) User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.11) Gecko/20100701 SeaMonkey/2.0.6 In-Reply-To: <4C5878E2.1020402@gmail.com> X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.11 Precedence: list Resent-Date: Tue, 03 Aug 2010 16:57:02 -0400 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 3) X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:39221 Archived-At: Laimonas Vėbra wrote: > I guess, that CreateProcess(), in this case, internally processes > command line args, i.e. program names/paths ('c:/cygwin/bin/ls', > 'grep'), that it passes to cmd.exe and because command name/path is not > correctly/appropriately constructed (should be backslashed), it (chain > CreateProcess()->cmd.exe) fails. Wrong. Actually it's cmd.exe that fails if command string contains pipe and (subsequent slashed, not backslashed) program names are not quoted. Works: cmd.exe /c c:/cygwin/bin/ls | grep foo cmd.exe /c c:/cygwin/bin/ls | C:\cygwin\bin\grep foo cmd.exe /c c:/cygwin/bin/ls | "C:/cygwin/bin/grep" foo cmd.exe /c "c:/cygwin/bin/ls" | "C:/cygwin/bin/grep" foo Fails: cmd.exe /c c:/cygwin/bin/ls | C:/cygwin/bin/grep foo So it could be fixed in two ways: 1. using windows path naming rules when calling CreateProcess() 2. quoting program names (all or if it contains slashes '/', i.e. is not backslashed) args when calling CreateProcess() I'm not sure which one would be easier and more error prone.