From c400f74918a990c00d7a1688f5a1881ee024bcdb Mon Sep 17 00:00:00 2001
From: Daniel Gultsch <daniel@gultsch.de>
Date: Sun, 9 Jul 2017 19:05:23 +0200
Subject: [PATCH] prefer ipv4 over ipv6

---
 src/main/java/eu/siacs/conversations/utils/Resolver.java | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/main/java/eu/siacs/conversations/utils/Resolver.java b/src/main/java/eu/siacs/conversations/utils/Resolver.java
index d3e0f757..3a1ac825 100644
--- a/src/main/java/eu/siacs/conversations/utils/Resolver.java
+++ b/src/main/java/eu/siacs/conversations/utils/Resolver.java
@@ -5,6 +5,7 @@ import android.support.annotation.NonNull;
 import android.util.Log;
 
 import java.io.IOException;
+import java.net.Inet4Address;
 import java.net.InetAddress;
 import java.util.ArrayList;
 import java.util.Collections;
@@ -157,6 +158,12 @@ public class Resolver {
                 if (directTls == result.directTls) {
                     if (ip == null && result.ip == null) {
                         return 0;
+                    } else if (ip != null && result.ip != null) {
+                        if (ip instanceof Inet4Address && result.ip instanceof Inet4Address) {
+                            return 0;
+                        } else {
+                            return ip instanceof Inet4Address ? -1 : 1;
+                        }
                     } else {
                         return ip != null ? -1 : 1;
                     }