Index: common/Message.cpp
===================================================================
--- common/Message.cpp	(revision 38b85bb56b1f73f897cf5644f0d22c47bde84bd5)
+++ common/Message.cpp	(revision eb8adb1425e498d6ce45dbf01c11619912d30905)
@@ -31,5 +31,6 @@
    int ret =  recvfrom(sock, (char*)msg, sizeof(NETWORK_MSG), 0, (struct sockaddr *)dest, &socklen);
 
-   cout << "Received message of type " << msg->type << endl;
+   if (ret > -1)
+      cout << "Received message of type " << msg->type << endl;
 
    return ret;