/**
* Retrieve all DNS records for a given host, with 5 seconds as the default
* timeout for the operation, using Google's public nameservers.
*/
function resolv_get_records($host, $query = DNS_ALL, $timeout = 5.0, $ns = null)
{
if (is_null($query)) {
$query = DNS_ALL;
}
$query = _resolv_convert_query($query);
if (is_null($ns)) {
$ns = '8.8.8.8';
}
try {
$start = microtime(true);
$res = _resolv_choice([function () use($host, $query, &$timeout, $ns) {
return call_user_func_array("_resolv_query_udp", [$host, $timeout, $ns, $query]);
}, function () use($start, &$timeout) {
$timeout -= microtime(true) - $start;
return [false, null];
}, function () use($host, $query, &$timeout, $ns) {
return call_user_func_array("_resolv_query_tcp", [$host, $query, $ns, $query]);
}]);
if (is_null($res)) {
throw new Exception("Unable to fetch records");
}
// Handle response
if ($res->getResponseCode() !== 0) {
throw new Exception("Server returned error code " . $res->getResponseCode());
}
return _resolv_convert_results($res, $host);
} catch (Exception $e) {
return [];
}
}
if (sizeof(array_diff($native, $resolv)) || sizeof(array_diff($resolv, $native))) {
echo "Failed check for bcc.com A records\n";
var_dump($native);
var_dump($resolv);
exit(1);
}
$native = array_map("_target", dns_get_record("bbc.com", DNS_MX));
$resolv = array_map("_target", resolv_get_records("bbc.com", DNS_MX, 5, "8.8.8.8"));
if (sizeof(array_diff($native, $resolv)) || sizeof(array_diff($resolv, $native))) {
echo "Failed check for bcc.com MX records\n";
var_dump($native);
var_dump($resolv);
exit(1);
}
// test tcp mode
$native = array_map("_ip", dns_get_record("bbc.com", DNS_A));
$resolv = array_map("_ip", _resolv_convert_results(_resolv_query_tcp("bbc.com", 5, "8.8.8.8", _resolv_convert_query(DNS_A))[1], "bbc.com"));
if (sizeof(array_diff($native, $resolv)) || sizeof(array_diff($resolv, $native))) {
echo "Failed TCP check for bcc.com A records\n";
var_dump($native);
var_dump($resolv);
exit(1);
}
$native = array_map("_target", dns_get_record("bbc.com", DNS_MX));
$resolv = array_map("_target", _resolv_convert_results(_resolv_query_tcp("bbc.com", 5, "8.8.8.8", _resolv_convert_query(DNS_MX))[1], "bbc.com"));
if (sizeof(array_diff($native, $resolv)) || sizeof(array_diff($resolv, $native))) {
echo "Failed TCP check for bcc.com MX records\n";
var_dump($native);
var_dump($resolv);
exit(1);
}