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Date: Fri, 2 Sep 2011 15:21:16 +0400
From: Andrey Chernov <ache@FreeBSD.ORG>
To: Andriy Gapon <avg@FreeBSD.ORG>
Message-ID: <20110902112116.GA23835@vniz.net>
Mail-Followup-To: Andrey Chernov <ache@freebsd.org>,
	Andriy Gapon <avg@FreeBSD.ORG>, Jilles Tjoelker <jilles@stack.nl>,
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Cc: freebsd-net@FreeBSD.ORG, freebsd-standards@FreeBSD.ORG,
	Jilles Tjoelker <jilles@stack.nl>
Subject: Re: POLLHUP on never connected socket
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On Fri, Sep 02, 2011 at 02:04:34PM +0300, Andriy Gapon wrote:
> on 02/09/2011 13:40 Jilles Tjoelker said the following:
> > Ports people have complained about poll() behaviour before, are there
> > configure scripts that attempt to check if we ever return POLLHUP alone
> > and only check for POLLIN if not?
> 
> Not sure about that other software and how POLLIN is related here.
> The software in question (mozilla nspr) checks for POLLNVAL, POLLERR, POLLPRI
> and POLLOUT to determine if anything interesting has happened to a connection
> supposed to be in progress.  They aren't checking for POLLHUP at all and thus
> they keep thinking that the connection is still in progress when they get it.

It seems for such case it should return POLLERR too.

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