dns_get_record for OSX View as Markdown

Hi Scott

2009/1/7 Scott MacVicar scott@macvicar.net:

I went to look at the bug Pierre mention earlier and noticed that
dns_get_record isn't implemented on OS X, this looks to be down to the fact
that it has a bind 8 BC layer that we use by default for some reason. I
tried to make it use the bind 9 interface but it wasn't a simple task as
some other things were missing.

End result here is a patch that allows bind 8 to work and therefore OS X,
the main difference is that there is a shared _res structure rather than a
per request one.

Does this mean it will also work on BSD? As far I remember then
dns_get_record wasn't implemented on BSD aswell. If not then it would

FreeBSD ports have had their own patch for years.

-Hannes

Hi Kalle,
Kalle Sommer Nielsen wrote:

Hi Scott

2009/1/7 Scott MacVicar scott@macvicar.net:

I went to look at the bug Pierre mention earlier and noticed that
dns_get_record isn't implemented on OS X, this looks to be down to the fact
that it has a bind 8 BC layer that we use by default for some reason. I
tried to make it use the bind 9 interface but it wasn't a simple task as
some other things were missing.

End result here is a patch that allows bind 8 to work and therefore OS X,
the main difference is that there is a shared _res structure rather than a
per request one.

Does this mean it will also work on BSD? As far I remember then
dns_get_record wasn't implemented on BSD aswell. If not then it would
be ideal to support it if OSX is patched :)

Yeah it would work on all of the BSDs, though we have some wierd
bastardisation of bind8 and bind9 code in dns.c, I think some gentle
refactoring is in order to get this in a bit better shape.

OS X actually has res_nmkquery but AC_CHECK_FUNC can't correctly detect
this because of the way its defined in resolv.h, it's something like this.

#define res_nmkquery bind_9_nmkquery

AC_CHECK_FUNC does an #undef res_nmkquery as part of its test resulting
in the failure.

FreeBSD has __res_nmkquery but unfortunately PHP_CHECK_FUNC when
checking for res_nmkquery OR __res_nmkquery it doesn't tell you which
one it found.

I'll fix this in stages I guess, starting with the autoconf fun.

Scott

hi,

Please look at (1st result in google or bugs.php.net :):

http://bugs.php.net/bug.php?id=29337

I'll apply this tomorrow if no one has any objections.

About FreeBSD:

http://www.freebsd.org/cgi/cvsweb.cgi/ports/lang/php5/files/patch-ext_standard_dns.h

On a sidenote, I would suggest to take a look at the djbdns library,
which is available on almost all platform and seems to be much cleaner
than bind(8|9): http://cr.yp.to/djbdns/dns.html

Cheers,

Pierre

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