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From:	"Hannu E K Nevalainen" <garbage_collector AT telia DOT com>
To:	<cygwin AT cygwin DOT com>
Subject:	RE: UDP socket select/recvfrom problem when no server
Date:	Sun, 4 Apr 2004 20:42:56 +0200
Message-ID:	<NGBBLLIAMFLGJEOAJCCEEEOODJAA.garbage_collector@telia.com>
MIME-Version:	1.0
In-Reply-To:	<m2fzbj6c5d.fsf@bluesteel.grierwhite.com>

> From: Christopher J. White

> I've got a UDP socket application that fails since my
> most recent upgrade, I believe from 1.5.9 to 1.5.9-1.
> 
> Basic UDP app that fails as follows:
> 
<SNIP>
> I suspect that the destination is returning an ICMP error when the
> server is not running and that is what's giving select() something to
> look at.  However, it's my understanding that unless I do a connect(),
> ICMP errors are not propogated to the app.  In addition, errno should
> be ECONNREFUSED in this case, and not ECONNRESET.
> 
> ...cj

May I suggest that you download Ethereal (and winpcap if using windows).
Then capture and analyze traffic, instead of guessing. ;-)
-> ethereal.com

/Hannu E K Nevalainen, B.Sc. EE - 59+16.37'N, 17+12.60'E

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