Date: Wed, 30 Jan 2002 13:10:02 -0800 (PST) From: "brian j. peterson" <rbw@myplace.org> To: freebsd-bugs@FreeBSD.org Subject: Re: misc/34455: [PATCH] /sbin/dhclient-script overwrites /etc/resolv.conf without any relevant information Message-ID: <200201302110.g0ULA2394068@freefall.freebsd.org>
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The following reply was made to PR misc/34455; it has been noted by GNATS.
From: "brian j. peterson" <rbw@myplace.org>
To: FreeBSD-gnats-submit@freebsd.org
Cc: Ceri <setantae@submonkey.net>
Subject: Re: misc/34455: [PATCH] /sbin/dhclient-script overwrites /etc/resolv.conf without any relevant information
Date: Wed, 30 Jan 2002 14:04:31 -0700
On Wed, Jan 30, 2002 at 06:28:07PM +0000, Ceri wrote:
> Strikes me as pilot error to be honest.
> If the DCHP server doesn't provide nameservers, and you're not overriding them,
> then you'll end up with nothing there.
>
> If you wish to insert some information into /etc/resolv.conf,
> that's what the supersede statement in dhclient.conf is for, viz.
>
> # cat /etc/dhclient.conf
> interface "ed0" {
> supersede domain-name "private.submonkey.net";
> prepend domain-name-servers 192.168.10.1;
> }
admittedly, there are ways around this problem, but the fact is that
dhclient-script is overwriting /etc/resolv.conf regardless of whether
or not it has useful data to write to it. my trivial patch solves this
problem by not writing to /etc/resolv.conf if there's no reason to.
(the script simply checks to see if a certain variable has a value or
not, and writes to /etc/resolv.conf only if the variable has a value.)
i prefer, at this point, to create my own /etc/resolv.conf, and since i'm
not requesting any domain-name or domaina-name-servers information, i
don't think dhclient-script has any business overwriting /etc/resolv.conf
with "search \n".
am i wrong to expect this script to not clobber important files with
useless information?
-brian
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