php/php-src — pull request #690 by ptarjan (2014-06-10 08:26:32+00:00)
Title: Don't overflow the buffer on bad DNS TXT records

`dlen` can be small but then the chunk length could exceed it and
overrun the buffer.

An example site with this bug is berlin.polemb.net running this code:

```
$types = array('AAAA' => 1, 'A' => 1);
$records = dns_get_record("berlin.polemb.net",
DNS_A | DNS_TXT | DNS_AAAA | DNS_CNAME,
);
var_dump($records);
```