Add --version for all clients.

ChangeLog.txt

@@ -61,6 +61,7 @@ Clients:
 - mosquitto_pub now sends 0 length files without an error when using `-f`.
 - mosquitto_sub now supports extra format specifiers for field width and
   precision for some parameters.
+- Add `--version` for all clients.
 
 
 1.6.9 - 20200227

client/client_shared.c

@@ -1102,6 +1102,8 @@ int client_config_line_proc(struct mosq_config *cfg, int pub_or_sub, int argc, c
 				goto unknown_option;
 			}
 			cfg->verbose = 1;
+		}else if(!strcmp(argv[i], "--version")){
+			return 3;
 		}else if(!strcmp(argv[i], "-W")){
 			if(pub_or_sub == CLIENT_PUB){
 				goto unknown_option;

client/pub_client.c

@@ -366,6 +366,14 @@ void pub_shared_cleanup(void)
 }
 
 
+void print_version(void)
+{
+	int major, minor, revision;
+
+	mosquitto_lib_version(&major, &minor, &revision);
+	printf("mosquitto_pub version %s running on libmosquitto %d.%d.%d.\n", VERSION, major, minor, revision);
+}
+
 void print_usage(void)
 {
 	int major, minor, revision;
@@ -496,6 +504,8 @@ int main(int argc, char *argv[])
 		if(rc == 2){
 			/* --help */
 			print_usage();
+		}else if(rc == 3){
+			print_version();
 		}else{
 			fprintf(stderr, "\nUse 'mosquitto_pub --help' to see usage.\n");
 		}

client/rr_client.c

@@ -153,6 +153,14 @@ void my_publish_callback(struct mosquitto *mosq, void *obj, int mid, int reason_
 }
 
 
+void print_version(void)
+{
+	int major, minor, revision;
+
+	mosquitto_lib_version(&major, &minor, &revision);
+	printf("mosquitto_rr version %s running on libmosquitto %d.%d.%d.\n", VERSION, major, minor, revision);
+}
+
 void print_usage(void)
 {
 	int major, minor, revision;
@@ -280,6 +288,9 @@ int main(int argc, char *argv[])
 		if(rc == 2){
 			/* --help */
 			print_usage();
+		}else if(rc == 3){
+			/* --version */
+			print_version();
 		}else{
 			fprintf(stderr, "\nUse 'mosquitto_rr --help' to see usage.\n");
 		}

client/sub_client.c

@@ -175,6 +175,14 @@ void my_log_callback(struct mosquitto *mosq, void *obj, int level, const char *s
 	printf("%s\n", str);
 }
 
+void print_version(void)
+{
+	int major, minor, revision;
+
+	mosquitto_lib_version(&major, &minor, &revision);
+	printf("mosquitto_sub version %s running on libmosquitto %d.%d.%d.\n", VERSION, major, minor, revision);
+}
+
 void print_usage(void)
 {
 	int major, minor, revision;
@@ -319,6 +327,9 @@ int main(int argc, char *argv[])
 		if(rc == 2){
 			/* --help */
 			print_usage();
+		}else if(rc == 3){
+			/* --version */
+			print_version();
 		}else{
 			fprintf(stderr, "\nUse 'mosquitto_sub --help' to see usage.\n");
 		}