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Date: Tue, 5 Jun 2012 17:13:05 +0400
From: Andrey Chernov <ache@FreeBSD.ORG>
To: Joerg Sonnenberger <joerg@britannica.bec.de>
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Cc: svn-src-head@FreeBSD.ORG, svn-src-all@FreeBSD.ORG,
	src-committers@FreeBSD.ORG, Dimitry Andric <dim@FreeBSD.ORG>
Subject: Re: svn commit: r236582 - head/lib/libc/stdlib
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On Tue, Jun 05, 2012 at 02:55:20PM +0200, Joerg Sonnenberger wrote:
> On Tue, Jun 05, 2012 at 04:39:01PM +0400, Andrey Chernov wrote:
> > Moreover, standard metion "unsuccessful call" case for free() where errno 
> > state is totally undefined.
> 
> ...which would be a programming mistake in first place and is valid as
> justification.

Not only that (I mean programming mistake in the realpath). F.e. internal 
free/malloc state can be damaged by other code even earlier. But all of 
this is not the case, since POSIX allows it to modify errno on _success_,
which is main reason of the change.
Please see 
http://austingroupbugs.net/view.php?id=385

-- 
http://ache.vniz.net/