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Date: Sat, 18 Jun 2011 17:55:34 +0200
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: Bug with paths containing double slashes after double dot after a mount point
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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

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