tweaks

_examples/funkensturm/Makefile

@@ -4,7 +4,7 @@
 include $(GOROOT)/src/Make.inc
 TARG=funkensturm
 GOFILES=funkensturm.go\
-	config_delay.go\
+	config.go\
 
 DEPS=../../
 include $(GOROOT)/src/Make.cmd

_examples/funkensturm/funkensturm.go

@@ -129,6 +129,11 @@ func doFunkensturm(i []byte) ([]byte, os.Error) {
 		pkt1, _ = m.Func(pkt1, OUT)
 	}
 
+        if pkt1 == nil {
+                // don't need to send something back
+                return nil, nil
+        }
+
 	if *verbose {
 		fmt.Printf(">>>>>> MODIFIED OUTGOING\n")
 		fmt.Printf("%v", pkt1)