Merge pull request #27922 from nextcloud/check-if-dnsresponse-is-false

Check if dns_get_record returns non-false

Author: kesselb

lib/private/Http/Client/DnsPinMiddleware.php

@@ -82,7 +82,7 @@ private function dnsResolve(string $target, int $recursionCount) : array {
 
 			$dnsResponses = dns_get_record($target, $dnsType);
 			$canHaveCnameRecord = true;
-			if (count($dnsResponses) > 0) {
+			if ($dnsResponses !== false && count($dnsResponses) > 0) {
 				foreach ($dnsResponses as $dnsResponse) {
 					if (isset($dnsResponse['ip'])) {
 						$targetIps[] = $dnsResponse['ip'];