prevent NAT check if given nil multiaddr

36a4ee70 · Jeromy · e489a887 · 36a4ee70
Commit 36a4ee70 authored Nov 08, 2014 by Jeromy
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net/swarm/conn.go net/swarm/conn.go +5 -1

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--- a/net/swarm/conn.go
+++ b/net/swarm/conn.go
@@ -119,7 +119,11 @@ func (s *Swarm) connSetup(c conn.Conn) (conn.Conn, error) {
 	}

 	// check for nats. you know, just in case.
-	s.checkNATWarning(h3result.LocalObservedAddress)
+	if h3result.LocalObservedAddress != nil {
+		s.checkNATWarning(h3result.LocalObservedAddress)
+	} else {
+		log.Warningf("Received nil observed address from %s", c.RemotePeer())
+	}

 	// add to conns
 	s.connsLock.Lock()