16     fprintf(stderr, "Usage: %s [-s|-c|-b] <ip> <port>\n", program);  in usage()
33         fprintf(stderr, "ERROR: Unable to resolve '%s' and port '%s': %s\n",  in resolve()
54         fprintf(stderr, "Unable to connect to server\n");  in runClient()
59         fprintf(stderr, "Failed to send message to server\n");  in runClient()
80         fprintf(stderr, "Unable to bind to address\n");  in runServer()
94             fprintf(stderr, "Error receiving on socket: %s\n", strerror(errno));  in runServer()
98             fprintf(stderr, "Socket unexpectedly closed\n");  in runServer()
112         fprintf(stderr, "ERROR: Could not open bridge socket: %s\n",  in configureBridge()
119         fprintf(stderr, "ERROR: cannot create bridge: %s\n", strerror(errno));  in configureBridge()
129             fprintf(stderr, "ERROR: Unable to get interface index for %s\n",  in configureBridge()
137             fprintf(stderr, "ERROR: cannot add if %s to bridge: %s\n",  in configureBridge()
148         fprintf(stderr, "ERROR: Unable to get interface index for %s\n",  in configureBridge()
156         fprintf(stderr, "ERROR: Unable to get interface index for %s\n",  in configureBridge()
166             fprintf(stderr, "ERROR: Unable to set interface flags for %s\n",  in configureBridge()
191         fprintf(stderr, "ERROR: Invalid option '%s'\n", argv[1]);  in main()