From owner-freebsd-ipfw@FreeBSD.ORG  Sat Aug 30 07:07:06 2003
Return-Path: <owner-freebsd-ipfw@FreeBSD.ORG>
Delivered-To: freebsd-ipfw@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id F40C116A4BF
	for <freebsd-ipfw@freebsd.org>; Sat, 30 Aug 2003 07:07:05 -0700 (PDT)
Received: from mout1.freenet.de (mout1.freenet.de [194.97.50.132])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 671A343FEA
	for <freebsd-ipfw@freebsd.org>; Sat, 30 Aug 2003 07:07:03 -0700 (PDT)
	(envelope-from ino-qc@spotteswoode.de.eu.org)
Received: from [194.97.50.144] (helo=mx1.freenet.de)
	by mout1.freenet.de with asmtp (Exim 4.21)
	id 19t6NZ-0000gM-Pc
	for freebsd-ipfw@freebsd.org; Sat, 30 Aug 2003 16:07:01 +0200
Received: from p3e9baaa4.dip.t-dialin.net ([62.155.170.164]
	helo=spotteswoode.dnsalias.org)
	by mx1.freenet.de with asmtp (ID inode@freenet.de) (Exim 4.21 #5)
	id 19t6NZ-0000uU-ET
	for freebsd-ipfw@freebsd.org; Sat, 30 Aug 2003 16:07:01 +0200
Received: (qmail 69873 invoked by uid 0); 30 Aug 2003 14:07:00 -0000
Date: 30 Aug 2003 16:07:00 +0200
Message-ID: <ekz3b5ob.fsf@ID-23066.news.dfncis.de>
From: "Clemens Fischer" <ino-qc@spotteswoode.de.eu.org>
To: "Kelly Yancey" <kbyanc@posi.net>
In-Reply-To: <20030829121458.W4705-100000@gateway.posi.net> (Kelly Yancey's
 message of "Fri, 29 Aug 2003 12:18:30 -0700 (PDT)")
References: <20030829121458.W4705-100000@gateway.posi.net>
User-Agent: Gnus/5.1003 (Gnus v5.10.3) Emacs/21.3 (berkeley-unix)
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
cc: freebsd-ipfw@freebsd.org
cc: luigi@freebsd.org
Subject: Re: hostnames resolving problem
X-BeenThere: freebsd-ipfw@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: IPFW Technical Discussions <freebsd-ipfw.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-ipfw>,
	<mailto:freebsd-ipfw-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-ipfw>
List-Post: <mailto:freebsd-ipfw@freebsd.org>
List-Help: <mailto:freebsd-ipfw-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-ipfw>,
	<mailto:freebsd-ipfw-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sat, 30 Aug 2003 14:07:06 -0000

* Kelly Yancey:

> diff -u -p -r1.4.2.17 ipfw2.c
> --- ipfw2.c	25 Jul 2003 08:23:07 -0000      1.4.2.17
> +++ ipfw2.c	29 Aug 2003 19:14:33 -0000
> @@ -1879,6 +1879,10 @@ lookup_host (char *host, struct in_addr
>  		if ((he = gethostbyname(host)) == NULL)
>  			return(-1);
>  		*ipaddr = *(struct in_addr *)he->h_addr_list[0];
> +		if (he->h_addr_list[1] != NULL) {
> +			warn("%s resolved to multiple addresses, only using %s",
> +			     host, inet_ntoa(*ipaddr));
> +		}

that would not be my cup of tea, because by this ipfw(8) becomes
"unscriptable", ie. i'd have to grep(1) for messages and start from
scratch again.  i guess this problem should be detected and handled
ahead of running ipfw(8).  note that you can always use `-p
preprocessor' for this.

  clemens