MQTT-Gateway/mqtt.h

struct mosquitto * connectMqtt(char *user, char *pass, void (*messageCallback)(struct mosquitto *, void *, const struct mosquitto_message *));
int sendMqtt(struct mosquitto *mqtt, char *topic, char *payload, int payloadLength);
int recvMqtt(struct mosquitto *mqtt, char *topic);
void disconnectMqtt(struct mosquitto *mqtt);