Add user-property output support to sub/rr.

client/client_shared.c

@@ -73,6 +73,8 @@ static int check_format(const char *str)
 					// payload length
 				}else if(str[i+1] == 'm'){
 					// mid
+				}else if(str[i+1] == 'P'){
+					// MQTT v5 property user-property
 				}else if(str[i+1] == 'p'){
 					// payload
 				}else if(str[i+1] == 'q'){

client/sub_client_output.c

@@ -338,7 +338,8 @@ static void formatted_print(const struct mosq_config *lcfg, const struct mosquit
 	uint8_t i8value;
 	uint16_t i16value;
 	uint32_t i32value;
-	char *binvalue, *strvalue;
+	char *binvalue, *strname, *strvalue;
+	const mosquitto_property *prop;
 
 	len = strlen(lcfg->format);
 
@@ -433,6 +434,26 @@ static void formatted_print(const struct mosq_config *lcfg, const struct mosquit
 						printf("%d", message->mid);
 						break;
 
+					case 'P':
+						strname = NULL;
+						strvalue = NULL;
+						prop = mosquitto_property_read_string_pair(properties, MQTT_PROP_USER_PROPERTY, &strname, &strvalue, false);
+						while(prop){
+							printf("%s:%s", strname, strvalue);
+							free(strname);
+							free(strvalue);
+							strname = NULL;
+							strvalue = NULL;
+
+							prop = mosquitto_property_read_string_pair(prop, MQTT_PROP_USER_PROPERTY, &strname, &strvalue, true);
+							if(prop){
+								fputc(' ', stdout);
+							}
+						}
+						free(strname);
+						free(strvalue);
+						break;
+
 					case 'p':
 						write_payload(message->payload, message->payloadlen, 0);
 						break;

man/mosquitto_rr.1.xml

@@ -675,6 +675,9 @@
 				<listitem><para><option>%F</option> the MQTT v5 payload-format-indicator property, if present.</para></listitem>
 				<listitem><para><option>%l</option> the length of the payload in bytes.</para></listitem>
 				<listitem><para><option>%m</option> the message id (only relevant for messages with QoS>0).</para></listitem>
+				<listitem><para><option>%P</option> the MQTT v5 user-property property, if present. This will be printed in the
+						form key:value. It is possible for any number of user properties to be attached to a message, and to
+						have duplicate keys.</para></listitem>
 				<listitem><para><option>%p</option> the payload raw bytes (may produce non-printable characters depending on the payload).</para></listitem>
 				<listitem><para><option>%q</option> the message QoS.</para></listitem>
 				<listitem><para><option>%R</option> the MQTT v5 response-topic property, if present.</para></listitem>

man/mosquitto_sub.1.xml

@@ -792,6 +792,9 @@ mosquitto_sub -t 'bbc/#' -T bbc/bbc1 --remove-retained</programlisting>
 				<listitem><para><option>%F</option> the MQTT v5 payload-format-indicator property, if present.</para></listitem>
 				<listitem><para><option>%l</option> the length of the payload in bytes.</para></listitem>
 				<listitem><para><option>%m</option> the message id (only relevant for messages with QoS>0).</para></listitem>
+				<listitem><para><option>%P</option> the MQTT v5 user-property property, if present. This will be printed in the
+						form key:value. It is possible for any number of user properties to be attached to a message, and to
+						have duplicate keys.</para></listitem>
 				<listitem><para><option>%p</option> the payload raw bytes (may produce non-printable characters depending on the payload).</para></listitem>
 				<listitem><para><option>%q</option> the message QoS.</para></listitem>
 				<listitem><para><option>%R</option> the MQTT v5 response-topic property, if present.</para></listitem>