mosquitto_broker.h

void mosquitto_log_printf( int  level, const  char  * fmt,   ... )

Write a log message using the broker configured logging.

Parameters

MOSQ_LOG_INFO MOSQ_LOG_NOTICE MOSQ_LOG_WARNING MOSQ_LOG_ERR MOSQ_LOG_DEBUG MOSQ_LOG_SUBSCRIBE (not recommended for use by plugins) MOSQ_LOG_UNSUBSCRIBE (not recommended for use by plugins)

These values are defined in mosquitto.h.

const char *mosquitto_client_address( const struct  mosquitto  * client )

Retrieve the IP address of the client as a string.

bool mosquitto_client_clean_session( const struct  mosquitto  * client )

Retrieve the clean session flag value for a client.

const char *mosquitto_client_id( const struct  mosquitto  * client )

Retrieve the client id associated with a client.

int mosquitto_client_keepalive( const struct  mosquitto  * client )

Retrieve the keepalive value for a client.

void *mosquitto_client_certificate( const struct  mosquitto  * client )

If TLS support is enabled, return the certificate provided by a client as an X509 pointer from openssl.  If the client did not provide a certificate, then NULL will be returned.  This function will only ever return a non-NULL value if the `require_certificate` option is set to true.

If TLS is not supported, this function will always return NULL.

int mosquitto_client_protocol( const struct  mosquitto  * client )

Retrieve the protocol with which the client has connected.  Can be one of

mp_mqtt (MQTT over TCP) mp_mqttsn (MQTT-SN) mp_websockets (MQTT over Websockets)

int mosquitto_client_sub_count( const struct  mosquitto  * client )

Retrieve the number of subscriptions that have been made by a client.

const char *mosquitto_client_username( const struct  mosquitto  * client )

Retrieve the username associated with a client.

int mosquitto_set_username( struct  mosquitto  * client, const  char  * username )

Set the username for a client.

This removes and replaces the current username for a client and hence updates its access.

username can be NULL, in which case the client will become anonymous, but must not be zero length.

In the case of error, the client will be left with its original username.

Returns