Will messages of MQTT-SN clients not published

[gazally]

I noticed my MQTT clients' wills were getting published but not MQTT-SN clients. Upon some investigation into the code I found MQTTProtocol_keepalive in MQTTProtocolClient.c which is responsible for closing timed out client sessions with the send_will flag set. It iterates through bstate->clients and checks whether client->protocol == PROTOCOL_MQTTS. However that is always going to be false because the MQTT-SN clients are not in bstate->clients, they are in bstate->mqtts_clients.

[aignacio]

up!