Date: Sun, 31 Aug 2003 18:52:10 -0700 (PDT) From: Kelly Yancey <kbyanc@posi.net> To: Clemens Fischer <ino-qc@spotteswoode.de.eu.org> Cc: luigi@FreeBSD.org Subject: Re: hostnames resolving problem Message-ID: <20030831184821.C13778-100000@gateway.posi.net> In-Reply-To: <ekz3b5ob.fsf@ID-23066.news.dfncis.de>
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On 30 Aug 2003, Clemens Fischer wrote:
> * 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.
>
No you don't, it just warns, not exits. You'll get warnings telling you
that what you are doing is a Bad Idea, but you can send them to /dev/null if
you don't care.
Kelly
--
Kelly Yancey -- kbyanc@{posi.net,FreeBSD.org}
FreeBSD, The Power To Serve: http://www.freebsd.org/
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