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Request #65343 Not all DNS types supported in dns_get_record
Submitted: 2013-07-26 13:34 UTC Modified: 2021-08-30 14:37 UTC
Votes:6
Avg. Score:3.5 ± 1.8
Reproduced:4 of 5 (80.0%)
Same Version:2 (50.0%)
Same OS:2 (50.0%)
From: info at tvdw dot eu Assigned:
Status: Analyzed Package: Network related
PHP Version: 5.5.1 OS: any
Private report: No CVE-ID: None
View Developer Edit
 [2013-07-26 13:34 UTC] info at tvdw dot eu 
Description:
------------
For a little project I'm working on I need DNS_DS (43) and DNS_TLSA (52) support in dns_get_record, but these are currently not supported by PHP, together with a lot of other DNS records. Manually defining these constants to the correct DNS RRtype values gives the warning "dns_get_record(): Type .. not supported".

Test script:
---------------
<?php
$ds_record = dns_get_record('com', DNS_DS);
echo $ds_record['hash'];

Expected result:
----------------
E2D3C916F6DEEAC73294E8268FB5885044A833FC5459588F4A9184CFC41A5766

Actual result:
--------------
Notice: Use of undefined constant DNS_DS - assumed 'DNS_DS' in ...
Warning: dns_get_record() expects parameter 2 to be long, string given in ...
NULL

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 [2013-07-26 23:18 UTC] yohgaki@php.net
-Status: Open +Status: Analyzed
 [2013-07-26 23:18 UTC] yohgaki@php.net 
It seems PHP only supports following values.

php > array_walk(get_defined_constants(), function($v, $k) {if 
(preg_match('/^DNS/', $k)) echo $k.' = '.$v.PHP_EOL;} );
DNS_A = 1
DNS_NS = 2
DNS_CNAME = 16
DNS_SOA = 32
DNS_PTR = 2048
DNS_HINFO = 4096
DNS_MX = 16384
DNS_TXT = 32768
DNS_SRV = 33554432
DNS_NAPTR = 67108864
DNS_AAAA = 134217728
DNS_A6 = 16777216
DNS_ANY = 268435456
DNS_ALL = 251713587

while there are

http://en.wikipedia.org/wiki/List_of_DNS_record_types

We are missing many.
 [2013-07-26 23:20 UTC] yohgaki@php.net
-Type: Feature/Change Request +Type: Bug
 [2013-07-26 23:20 UTC] yohgaki@php.net 
This may be typed as bug.
 [2019-07-15 16:06 UTC] daniil at daniil dot it 
Raw mode can be used along with a DNS record parser to fetch DNS records of any type.
I've just created a small lib that does just this, if anyone's interested: https://github.com/danog/LibDNSNative
 [2021-08-30 14:37 UTC] cmb@php.net
-Type: Bug +Type: Feature/Change Request
 [2021-08-30 14:37 UTC] cmb@php.net 
> Raw mode can be used along with a DNS record parser to fetch DNS
> records of any type.

Indeed.  So changing back to feature request.
 [2021-08-30 14:38 UTC] cmb@php.net 
Related To: Bug #54821
 
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