fixed wrong message size

main.go

@@ -64,7 +64,7 @@ func (daemon *LedDaemon) receive() {
 			break
 		}
 		if length > 0 {
-			msgLen := binary.BigEndian.Uint32(message[0:3])
+			msgLen := binary.BigEndian.Uint32(message[0:4])
 
 			log.Debugf("[%s] Read %d bytes, first protobuf is %d long", daemon.name, length, msgLen)
 
@@ -97,6 +97,12 @@ func (daemon *LedDaemon) send() {
 	}
 }
 
+func prepareProtobuf(data []byte) []byte {
+	size := make([]byte, 4)
+	binary.BigEndian.PutUint32(size, uint32(len(data)))
+	return append(size, data...)
+}
+
 func main() {
 	killSignals := make(chan os.Signal, 1)
 	signal.Notify(killSignals, syscall.SIGINT, syscall.SIGTERM)
@@ -143,7 +149,7 @@ func main() {
 	data, err := proto.Marshal(wrapperMsg)
 	check(err)
 
-	ledDaemon.data <- data
+	ledDaemon.data <- prepareProtobuf(data)
 
 	<-killSignals
 }