better upnp error msgs

p2p/listener.go

@@ -160,7 +160,7 @@ func getUPNPExternalAddress(externalPort, internalPort int) *NetAddress {
 	log.Debug("Getting UPNP external address")
 	nat, err := upnp.Discover()
 	if err != nil {
-		log.Debug("Could not get UPNP extrernal address", "error", err)
+		log.Debug("Could not perform UPNP discover", "error", err)
 		return nil
 	}
 
@@ -177,7 +177,7 @@ func getUPNPExternalAddress(externalPort, internalPort int) *NetAddress {
 
 	externalPort, err = nat.AddPortMapping("tcp", externalPort, internalPort, "tendermint", 0)
 	if err != nil {
-		log.Debug("Could not get UPNP external address", "error", err)
+		log.Debug("Could not add UPNP port mapping", "error", err)
 		return nil
 	}
 

p2p/pex_reactor.go

@@ -101,7 +101,7 @@ func (pexR *PEXReactor) Receive(chId byte, src *Peer, msgBytes []byte) {
 	}
 	log.Info("Received message", "msg", msg)
 
-	switch msg.(type) {
+	switch msgT := msg.(type) {
 	case *pexRequestMessage:
 		// src requested some peers.
 		// TODO: prevent abuse.
@@ -111,7 +111,7 @@ func (pexR *PEXReactor) Receive(chId byte, src *Peer, msgBytes []byte) {
 		// TODO: prevent abuse.
 		// (We don't want to get spammed with bad peers)
 		srcAddr := src.Connection().RemoteAddress
-		for _, addr := range msg.(*pexAddrsMessage).Addrs {
+		for _, addr := range msgT.Addrs {
 			pexR.book.AddAddress(addr, srcAddr)
 		}
 	default: