add ipv6 support for resolving nameserver-hostnames

Signed-off-by: Michael Kaufmann <d00p@froxlor.org>

lib/functions/phphelpers/function.gethostbynamel6.php

@@ -0,0 +1,33 @@
+<?php
+
+/**
+ * ipv6 aware gethostbynamel function
+ *
+ * @param string $host
+ * @param boolean $try_a default true
+ * @return boolean|array
+ */
+function gethostbynamel6($host, $try_a = true)
+{
+	$dns6 = dns_get_record($host, DNS_AAAA);
+	if ($try_a == true) {
+		$dns4 = dns_get_record($host, DNS_A);
+		$dns = array_merge($dns4, $dns6);
+	} else {
+		$dns = $dns6;
+	}
+	$ips = array();
+	foreach ($dns as $record) {
+		if ($record["type"] == "A") {
+			$ips[] = $record["ip"];
+		}
+		if ($record["type"] == "AAAA") {
+			$ips[] = $record["ipv6"];
+		}
+	}
+	if (count($ips) < 1) {
+		return false;
+	} else {
+		return $ips;
+	}
+}