X-Recipient: archive-cygwin@delorie.com
X-Spam-Check-By: sourceware.org
Date: Sat, 18 Jun 2011 17:55:34 +0200
From: Corinna Vinschen <corinna-cygwin@cygwin.com>
To: cygwin@cygwin.com
Subject: Re: Bug with paths containing double slashes after double dot after a mount point
Message-ID: <20110618155534.GO3437@calimero.vinschen.de>
Reply-To: cygwin@cygwin.com
Mail-Followup-To: cygwin@cygwin.com
References: <E1QXeGw-0005zV-5X@smtp.tt-solutions.com> <4DFBC1D2.4090207@ronin-capital.com> <loom.20110617T231522-545@post.gmane.org> <4DFBCCB7.2080408@sbcglobal.net> <loom.20110618T002902-783@post.gmane.org> <D255ECB130623742B0975B8F16C166C3578C1C3B56@LM-EXCHANGE.lifemodeler.com> <20110618083139.GL3437@calimero.vinschen.de> <loom.20110618T131403-874@post.gmane.org> <20110618113346.GN3437@calimero.vinschen.de> <loom.20110618T153803-763@post.gmane.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Disposition: inline
In-Reply-To: <loom.20110618T153803-763@post.gmane.org>
User-Agent: Mutt/1.5.21 (2010-09-15)
Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm
Precedence: bulk
List-Id: <cygwin.cygwin.com>
List-Unsubscribe: <mailto:cygwin-unsubscribe-archive-cygwin=delorie.com@cygwin.com>
List-Subscribe: <mailto:cygwin-subscribe@cygwin.com>
List-Archive: <http://sourceware.org/ml/cygwin/>
List-Post: <mailto:cygwin@cygwin.com>
List-Help: <mailto:cygwin-help@cygwin.com>, <http://sourceware.org/ml/#faqs>
Sender: cygwin-owner@cygwin.com
Mail-Followup-To: cygwin@cygwin.com
Delivered-To: mailing list cygwin@cygwin.com

On Jun 18 13:43, Vadim Zeitlin wrote:
> Corinna Vinschen <corinna-cygwin <at> cygwin.com> writes:
> > Other than that, I fixed that in CVS.  It's a Win32 path coversion problem
> > which only occurs if there are multiple backslashes trailing a ".." path
> > component.
> 
>  Thanks a lot for fixing this! Just out of idle curiosity, why did the
> problem only manifest itself under Windows 7 and not XP? Looking at
> http://cygwin.com/cgi-bin/cvsweb.cgi/src/winsup/cygwin/path.cc.diff?r1=1.629&r2=1.630&cvsroot=src&f=h
> and surrounding code I don't see anything obviously platform-specific.

Stracing shows that XP (probably all 5.x kernels) allow to specify paths
with multiple backslashes in calls to NtCreateFile, while the 6.x
kernels fail with STATUS_OBJECT_NAME_INVALID.


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat

--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple