Config/Interface: Allow copyFrom() to work on null

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

1 files changed, 15 insertions, 6 deletions

diff --git a/app/src/main/java/com/wireguard/config/Config.java b/app/src/main/java/com/wireguard/config/Config.java
index c7fdcc87..8f61dbdd 100644
--- a/app/src/main/java/com/wireguard/config/Config.java
+++ b/app/src/main/java/com/wireguard/config/Config.java
@@ -61,12 +61,21 @@ public class Config extends BaseObservable
 
     @Override
     public void copyFrom(final Config source) {
-        iface.copyFrom(source.iface);
-        isEnabled = source.isEnabled;
-        name = source.name;
-        peers.clear();
-        for (final Peer peer : source.peers)
-            addPeer(peer);
+        if (source != null) {
+            iface.copyFrom(source.iface);
+            isEnabled = source.isEnabled;
+            isPrimary = source.isPrimary;
+            name = source.name;
+            peers.clear();
+            for (final Peer peer : source.peers)
+                addPeer(peer);
+        } else {
+            iface.copyFrom(null);
+            isEnabled = false;
+            isPrimary = false;
+            name = null;
+            peers.clear();
+        }
     }
 
     public Interface getInterface() {