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Date: Tue, 23 Sep 2014 14:47:51 -0400
Message-ID: <CAA8DMBuPU6bpB47YXuKMPrL+QQjfv7io3T4hZjd+DfHkm-BHLQ@mail.gmail.com>
To: Michael Wallner <mike@php.net>
Cc: Pierre Joye <pierre.php@gmail.com>, Kris Craig <kris.craig@gmail.com>, 
	PHP Internals <internals@lists.php.net>
Content-Type: text/plain; charset=UTF-8
Subject: Re: [PHP-DEV] [RFC] Change checkdnsrr() $type argument behavior
From: figureonecpr@gmail.com (Sanford Whiteman)

Hi Mike,

> So it could still be seen as "works as expected", because it just checks if any answer is received. If that functionality is useful could be debatable.

That's not expected.  Chasing (dereferencing) CNAMEs is one of the
understood burdens of any DNS app; you can't treat the CNAME itself as
a positive response. Luckily standard apps don't rely on
DNS-to-boolean conversion like this or else the 'Net wouldn't work.

I'm glad you see I wasn't blowing smoke here.

-- S.


P.S. chekdnsrr() does the same thing for CNAMEs w/other RRtypes as
well, by the way.  It'll confirm that www.php.net has an SRV record.
I mean, geez...