Fix port "0" listen

transport/internet/tcp/hub.go

@@ -42,9 +42,6 @@ func ListenTCP(ctx context.Context, address net.Address, port net.Port, streamSe
 	var listener net.Listener
 	var err error
 	if port == net.Port(0) { // unix
-		if !address.Family().IsDomain() {
-			return nil, errors.New("invalid unix listen: ", address).AtError()
-		}
 		listener, err = internet.ListenSystem(ctx, &net.UnixAddr{
 			Name: address.Domain(),
 			Net:  "unix",

transport/internet/tcp_hub.go

@@ -65,6 +65,9 @@ func ListenTCP(ctx context.Context, address net.Address, port net.Port, settings
 	if address.Family().IsDomain() {
 		return nil, errors.New("domain address is not allowed for listening: ", address.Domain())
 	}
+	if port == 0 {
+		return nil, errors.New("port 0 is not allowed for listening on TCP")
+	}
 
 	protocol := settings.ProtocolName
 	listenFunc := transportListenerCache[protocol]