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Date:	Sat, 27 Jan 2007 10:38:08 +0100
From:	Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To:	cygwin AT cygwin DOT com
Subject:	Re: grep -P segfault
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On Jan 26 15:04, Brian Dessent wrote:
> Brian Dessent wrote:
> 
> > Right before calling memchr, beg points to the first byte in the string
> > "hello\n", end points to the \n character, and so does buflim.  Thus
> > (buflim - end) is zero, and memchr returns NULL.  From there match_size
> > is miscalculated and from there it's all downhill.  The test for EOL
> > should be skipped if buflim == end.
> 
> I see this is an old bug, reported and fixed in CVS nearly two years
> ago:
> 
> http://lists.gnu.org/archive/html/bug-grep/2005-02/msg00052.html
> http://savannah.gnu.org/bugs/?4531
> 
> And yet apparently the last released version is still 2.5.1a from
> 19-Nov-2004.  Sigh.

There's no newer grep release than 2.5.1a.  Looks like most Linux
distros use additional patches from CVS.


Corinna

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

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