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Date:      Sat, 17 Jun 2000 02:36:45 +0900 (JST)
From:      Hajimu UMEMOTO (=?iso-2022-jp?B?GyRCR19LXBsoQiAbJEJIJRsoQg==?=) <ume@mahoroba.org>
To:        itojun@iijlab.net
Cc:        ache@freebsd.org, alex@big.endian.de, cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject:   Re: cvs commit: src/lib/libc/net res_init.c res_send.c
Message-ID:  <20000617.023645.74755484.ume@mahoroba.org>
In-Reply-To: <2647.961120554@coconut.itojun.org>
References:  <20000615185200.A40608@freebsd.org> <2647.961120554@coconut.itojun.org>

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>>>>> On Fri, 16 Jun 2000 10:55:54 +0900
>>>>> itojun@iijlab.net said:

>There are following possibilities:
>1) No /etc/resolv.conf
>2) /etc/resolv.conf with several nameservers
>2a) /etc/resolv.conf with nameserver 0.0.0.0

All of these are checked with IPv4/IPv6 kernel and IPv4 only kernel.

itojun> ume, you really want to look at the latest kame libineet6/resolv/.
itojun> the code is much more conservative about backward compatibility
itojun> (selecting _res.nsaddr_list and _res_ext.nsaddr_list).

I read your commit message of KAME CVS.  Then, I had look around
resent res_init.c and res_send.c of kame/libinet6, and changed the
code.  I believe I already mereged corresponding code.  If I forgot to
merge the part should be merged, please tell me.  Thanks.

itojun> make sure to check if nslookup/dig/host work right.  they touch
itojun> struct _res directly and will make it a good torture-test for backward
itojun> compatibility

I just tried nslookup/dig/host of WC-CDROM 4.0-RELEASE live filesystem
with IPv4/IPv6 kernel and IPv4 only kernel,  and it seems working.

--
Hajimu UMEMOTO @ Internet Mutual Aid Society Yokohama, Japan
ume@mahoroba.org  ume@bisd.hitachi.co.jp  ume@FreeBSD.org
http://www.imasy.org/~ume/


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