Linked ticket with changeset: r8675
Action performed by Anonymous (I am too lazy to register) on Jun 28th 2008, 17:07
A bug in includes/functions.php will cause all lookups to succeed if a domain with a wildcard (*.serverdomain.com) is configured as the default/search domain in the operating system configuration.
As a result, a lookup for userdomain.com will return successful, as userdomain.com.serverdomain.com would be valid due to the wildcard. The wildcard configuration is not uncommon.
This can be fixed easily without harm by suffixing a period (dot) to the end of the host as in the below code-snippet. Adding this dot ignores any default lookup domain.
### includes/functions.php ###
else if (function_exists('checkdnsrr'))
{
return (checkdnsrr($host.'.', $type)) ? true : false;
}