#include #include #include #include #include static int run = -1; void on_connect(struct mosquitto *mosq, void *obj, int rc) { if(rc){ exit(1); }else{ mosquitto_publish(mosq, NULL, "retain/qos0/test", strlen("retained message"), "retained message", 0, true); } } int main(int argc, char *argv[]) { int rc; struct mosquitto *mosq; int port = atoi(argv[1]); mosquitto_lib_init(); mosq = mosquitto_new("retain-qos0-test", true, NULL); mosquitto_connect_callback_set(mosq, on_connect); rc = mosquitto_connect(mosq, "localhost", port, 60); while(run == -1){ mosquitto_loop(mosq, -1, 1); } mosquitto_lib_cleanup(); return run; }