From 329a19b4483aa5f0b70d9c22fcbb34ed888cf73c Mon Sep 17 00:00:00 2001
From: vvb2060 <vvb2060@gmail.com>
Date: Sat, 6 Mar 2021 02:52:30 +0800
Subject: [PATCH] [app] Fix DoH fallback (#273)

---
 .../io/github/lsposed/manager/util/DoHDNS.java     | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/app/src/main/java/io/github/lsposed/manager/util/DoHDNS.java b/app/src/main/java/io/github/lsposed/manager/util/DoHDNS.java
index d9cd3848..551510c7 100644
--- a/app/src/main/java/io/github/lsposed/manager/util/DoHDNS.java
+++ b/app/src/main/java/io/github/lsposed/manager/util/DoHDNS.java
@@ -56,13 +56,13 @@ public class DoHDNS implements Dns {
     @Override
     public List<InetAddress> lookup(@NonNull String hostname) throws UnknownHostException {
         if (App.getPreferences().getBoolean("doh", false)) {
-            List<InetAddress> inetAddresses = cloudflare.lookup(hostname);
-            if (inetAddresses.size() > 0) {
-                return inetAddresses;
-            } else if ("CN".equals(Locale.getDefault().getCountry())) {
-                inetAddresses = alidns.lookup(hostname);
-                if (inetAddresses.size() > 0) {
-                    return inetAddresses;
+            try {
+                return cloudflare.lookup(hostname);
+            } catch (UnknownHostException e) {
+                try {
+                    if ("CN".equals(Locale.getDefault().getCountry()))
+                        return alidns.lookup(hostname);
+                } catch (UnknownHostException ignored) {
                 }
             }
         }