Date: Mon, 31 Jul 2006 14:55:42 +0200
From: Corinna Vinschen <corinna-cygwin@cygwin.com>
To: Cygwin List <cygwin@cygwin.com>
Subject: Re: fetchmail socket errors with CVS cygwin build from 30 July
Message-ID: <20060731125542.GI8152@calimero.vinschen.de>
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On Jul 31 12:47, Corinna Vinschen wrote:
> On Jul 31 12:26, Corinna Vinschen wrote:
> > On Jul 31 11:38, Dr. Volker Zell wrote:
> > > Hi
> > > 
> > > In order to track down an xemacs segfault I build the latest cygwin1.dll
> > > from CVS (30 July). With that dll fetchmail couldn't connect to my IMAP
> > > server anymore. fetchmail works well with 1.5.21.
> > > 
> > > Here is what I get when running under verbose mode:
> > > 
> > > Jul 31 11:05:40 localhost fetchmail: PID 1740: awakened at Mon Jul 31 11:05:40 2006
> > > Jul 31 11:05:40 localhost fetchmail: PID 1740: 6.3.1 querying rgmemeaimap.oraclecorp.com (protocol IMAP) at Mon Jul 31 11
> > > :05:40 2006: poll started
> > > Jul 31 11:05:40 localhost fetchmail: PID 1740: socket error while fetching from Dr.Volker.Zell@rgmemeaimap.oraclecorp.com
> > > Jul 31 11:05:40 localhost fetchmail: PID 1740: 6.3.1 querying rgmemeaimap.oraclecorp.com (protocol IMAP) at Mon Jul 31 11
> > > :05:40 2006: poll completed
> > > Jul 31 11:05:40 localhost fetchmail: PID 1740: Query status=2 (SOCKET)
> > > Jul 31 11:05:40 localhost fetchmail: PID 1740: sleeping at Mon Jul 31 11:05:40 2006
> > 
> > Can you please strip that down to a simple reproducible testcase in C?
> 
> I just tried fetchmail over ssl myself and it works fine for me with the
> current Cygwin from CVS.  There must be something in your setup which
> might cause this problem.  I definitely need more information or better,
> a simple testcase.

Scratch that.  I was able to reproduce it when not using SSL.  The
problem is apparently related to calling recv(..., MSG_PEEK).  This
isn't the first time fetchmail gets problems with WinSock's MSG_PEEK
handling.  I can't solve the underlying problem, but I can fix the
additional problem which I introduced in the snapshot.  I applied a
fix to CVS.


Thanks for the report,
Corinna

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

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