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Date: Fri, 07 Jan 2011 18:49:45 -0700
From: Eric Blake <eblake AT redhat DOT com>
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Subject: Re: New version of w3m 0.5.2 Crashes - GDB help needed (SOLVED)
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On 01/07/2011 06:09 PM, nyc4bos AT aol DOT com wrote:
> It appears that it crashes if LANG is not defined
>=20
> When function term.c:check_cygwin_console:239 is called and
> the following is evaluated with environment variable LANG undefined:
>=20
> 	if (strncmp(getenv("LANG"), "ja", 2) =3D=3D 0) {

Yep, getenv() is allowed to return NULL for unset vars, and
strncmp(NULL) is undefined behavior (typically a crash).  The fix is to
correct the code to check that getenv() returned something before
blindly handing it to strncmp.

--=20
Eric Blake   eblake AT redhat DOT com    +1-801-349-2682
Libvirt virtualization library http://libvirt.org


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