@@ -70,6 +70,8 @@ static void parse_options(struct videohub_data *data, int argc, char **argv) {
// Set defaults
data->dev_port = "9990";
while ((j = getopt_long(argc, argv, short_options, long_options, NULL)) != -1) {
+ if (j == '?') // Invalid parameter
+ exit(EXIT_FAILURE);
switch (j) {
case 'h': // --host
data->dev_host = optarg;