Add support for displaying the schema data model with '-d' option

src/main.c

@@ -73,6 +73,7 @@ static void timemngr_usage(char *n)
 		"\nUsage: %s: <options>\n"
 		"Options:\n"
 		"  -l <loglevel> log verbosity value as per standard syslog\n"
+		"  -d <schema dm> Display the schema data model supported by micro-service\n"
 		"  -h help\n\n"
 		, n);
 }
@@ -80,13 +81,16 @@ static void timemngr_usage(char *n)
 int main(int argc, char **argv)
 {
 	int log_level = 3; // Default is LOG_ERR
-	int c = 0;
+	int c = 0, dm_type = 0;
 
-	while ((c = getopt(argc, argv, "l:h")) != -1) {
+	while ((c = getopt(argc, argv, "dl:h")) != -1) {
 		switch (c) {
 		case 'h':
 			timemngr_usage(argv[0]);
 			return EXIT_SUCCESS;
+		case 'd':
+			dm_type++;
+			break;
 		case 'l':
 			if (optarg) {
 				log_level = (int)strtod(optarg, NULL);
@@ -107,6 +111,11 @@ int main(int argc, char **argv)
 	bbfdm_ubus_set_log_level(log_level);
 	bbfdm_ubus_load_data_model(tDynamicObj);
 
+	if (dm_type > 0) {
+		int res = bbfdm_print_data_model_schema(&bbfdm_ctx, dm_type);
+		exit(res);
+	}
+
 	openlog("timemngr", LOG_CONS | LOG_PID | LOG_NDELAY, LOG_LOCAL1);
 
 	PRINT_DEBUG("Starting timemngr daemon");