From: orc <orc@sibserver.ru>
To: musl@lists.openwall.com
Subject: Re: dn_expand() confuses postfix
Date: Thu, 15 Aug 2013 14:14:22 +0800 [thread overview]
Message-ID: <20130815141422.3bc4502c@sibserver.ru> (raw)
In-Reply-To: <20130814220625.GT221@brightrain.aerifal.cx>
On Wed, 14 Aug 2013 18:06:25 -0400
Rich Felker <dalias@aerifal.cx> wrote:
> On Wed, Aug 14, 2013 at 02:19:20AM +0800, orc wrote:
> > musl's dn_expand() confuses postfix - always returns 0, then
> > postfix's libdns.a gets wrong shifts and gives up with something
> > like:
> >
> > ../test_dns_lookup: lookup yandex.ru type MX flags 2
> > ../test_dns_lookup: dns_query: yandex.ru (MX): OK
> > ../test_dns_lookup: warning: dns_get_fixed: bad class: 30722
> > ../test_dns_lookup: fatal: Name service error for name=yandex.ru
> > type=MX: Malformed or unexpected name server reply
> >
> > If someone will face same error with postfix & musl, then get
> > portable dn_expand.c from
> > http://tclsysdns.googlecode.com/svn/trunk/unix/dn_expand.c and put
> > it in src/dns (edit Makefile.in to include src & obj).
>
> I've committed some fixes to this code. Please let me know if the
> issue persists; I did not have test cases to check that the return
> value is right, so there's a possibility it may be off-by-one or
> something.
Other issue now:
./test_dns_lookup: lookup yandex.ru type MX flags 2
./test_dns_lookup: dns_query: yandex.ru (MX): OK
./test_dns_lookup: warning: valid_hostname: invalid character 6(decimal): ?yande.?r
./test_dns_lookup: warning: malformed domain name in resource name of MX record for ?yande.?r: ?yande.?r
./test_dns_lookup: fatal: Name service error for name=yandex.ru type=MX: Malformed or unexpected name server reply
./test_dns_lookup: lookup ya.ru type MX flags 2
./test_dns_lookup: dns_query: ya.ru (MX): OK
./test_dns_lookup: warning: valid_hostname: invalid character 2(decimal): ?y.?r
./test_dns_lookup: warning: malformed domain name in resource name of MX record for ?y.?r: ?y.?r
./test_dns_lookup: fatal: Name service error for name=ya.ru type=MX: Malformed or unexpected name server reply
temp buffer at src/dns/dns_lookup.c:287 is messed up with these.
>
> Rich
next prev parent reply other threads:[~2013-08-15 6:14 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-13 18:19 orc
2013-08-13 18:38 ` Rich Felker
2013-08-13 19:09 ` orc
2013-08-13 20:36 ` Rich Felker
2013-08-14 22:06 ` Rich Felker
2013-08-15 6:14 ` orc [this message]
2013-08-15 6:36 ` Rich Felker
2013-08-25 6:43 ` Rich Felker
2013-08-25 8:42 ` orc
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