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Date:	Wed, 1 Jan 2003 12:19:52 -0500
From:	"Pierre A. Humblet" <pierre DOT humblet AT ieee DOT org>
To:	cygwin AT cygwin DOT com
Subject:	Re: Heads up: *possible* bug in cygwin
Message-ID:	<20030101171952.GA83996745@HPN5170X>
Mail-Followup-To:	"Pierre A. Humblet" <pierre DOT humblet AT ieee DOT org>,
	cygwin AT cygwin DOT com
References:	<20030101100510 DOT 5b5b7f3f DOT steven DOT obrien2 AT ntlworld DOT com> <20030101170613 DOT GA19419 AT redhat DOT com>
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In-Reply-To:	<20030101170613.GA19419@redhat.com>
User-Agent:	Mutt/1.4i

> On Wed, Jan 01, 2003 at 10:05:10AM +0000, Steven O'Brien wrote:

> >In glib-1.2.10, gutils.c: g_get_any_init (void), the current user
> >details are obtained from /etc/passwd. This code is called as part of
> >glib initialisation, whether the app wants this data or not. It uses
> >sysconf (_SC_GETPW_R_SIZE_MAX) to decide how much buffer to allocate for
> >this data. But on cygwin this appears broken, and the call to getpwuid_r
> >(getuid (), &pwd, buffer, bufsize, &pw) *may* overrun buffer, depending
> >on the length of the line in /etc/passwd for the current user.

Have you experienced an overrun? I see code in cygwin to set errno to 
ERANGE if the buffer is too small.

Pierre

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