Bug #52101 [Asn->Csd]: dns_get_record() - garbage in 'ipv6' field

From: Date: Thu, 17 Jun 2010 09:27:21 +0000
Subject: Bug #52101 [Asn->Csd]: dns_get_record() - garbage in 'ipv6' field
References: 1  Groups: php.bugs 
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Edit report at http://bugs.php.net/bug.php?id=52101&edit=1

 ID:               52101
 Updated by:       pajoye@php.net
 Reported by:      grawity at gmail dot com
 Summary:          dns_get_record() - garbage in 'ipv6' field
-Status:           Assigned
+Status:           Closed
 Type:             Bug
 Package:          Network related
 Operating System: Windows XP SP3
 PHP Version:      5.3.2
 Assigned To:      pajoye

 New Comment:

This bug has been fixed in SVN.

Snapshots of the sources are packaged every three hours; this change
will be in the next snapshot. You can grab the snapshot at
http://snaps.php.net/.
 
Thank you for the report, and for helping us make PHP better.




Previous Comments:
------------------------------------------------------------------------
[2010-06-17 11:26:31] pajoye@php.net

Automatic comment from SVN on behalf of pajoye
Revision: http://svn.php.net/viewvc/?view=revision&revision=300510
Log: - Fix bug #52101, dns_get_record()garbage in 'ipv6' field

------------------------------------------------------------------------
[2010-06-17 02:14:26] felipe@php.net

On linux I got:
string(33) "2001:470:1f0b:614:2ff:76ff:fe90::"

------------------------------------------------------------------------
[2010-06-16 18:29:55] grawity at gmail dot com

Description:
------------
When calling dns_get_record($host, DNS_AAAA) for a single specific
hostname ("snowflake.nullroute.eu.org"), random garbage is appended to
the 'ipv6' field of the DNS response.

The DNS response itself is valid (tested using Wireshark).

<tshark-output filter="udp port 53">
192.168.1.94 -> 8.8.8.8      DNS Standard query AAAA
snowflake.nullroute.eu.org
     8.8.8.8 -> 192.168.1.94 DNS Standard query response AAAA
2001:470:1f0b:614:2ff:76ff:fe90:0
</tshark-output>

PHP 5.3.2 (cli) (built: Mar  3 2010 20:47:01)
Copyright (c) 1997-2010 The PHP Group
Zend Engine v2.3.0, Copyright (c) 1998-2010 Zend Technologies

Test script:
---------------
<?php
foreach (dns_get_record('snowflake.nullroute.eu.org', DNS_AAAA) as $r)
    var_dump($r['ipv6']);


Expected result:
----------------
string(33) "2001:470:1f0b:614:2ff:76ff:fe90::"

Actual result:
--------------
string(37) "2001:470:1f0b:614:2ff:76ff:fe90:XXXXX"

(where XXXXX is five random bytes)


------------------------------------------------------------------------



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