Open PitHerm opened 10 months ago
@PitHerm I have the same error , do you fix it ?
If I'm not mistaken, this is because mqtt_connect
seems to only queue the CONNECT message without actually sending it.
It's the first mqtt_sync
call after the mqtt_connect
that will really send the pending CONNECT request.
So, when mqtt_connect
returns, the library cannot possibly yet know if the username/password are correct.
You can see that connect failed if mqtt_sync
returns either:
MQTT_ERROR_CONNECT_CLIENT_ID_REFUSED
orMQTT_ERROR_CONNECTION_REFUSED
i tried your simple publisher example and modified the parameter of mqtt_connect from:
/ Send connection request to the broker. / mqtt_connect(&client, client_id, NULL, NULL, 0, NULL, NULL, connect_flags, 400);
with the correct username and password to: / Send connection request to the broker. / mqtt_connect(&client, client_id, NULL, NULL, 0, "paul", "paula", connect_flags, 400);
i received no errors and a connection which worked. then i tried wrong username and wrong password
/ Send connection request to the broker. / mqtt_connect(&client, client_id, NULL, NULL, 0, "otto", "otto", connect_flags, 400);
i received no errors and no connection to the broker was established after pressing the ENTER key to send the time i received an error
./simple_publisher is ready to begin publishing the time. Press ENTER to publish the current time. Press CTRL-D (or any other key) to exit.
./simple_publisher published : "The time is 2023-10-25 06:55:24" datetimeThe time is 2023-10-25 06:55:24 error: MQTT_ERROR_SOCKET_ERROR
if no connection was established to the broker there should be an error message.