incorrect in-order expectations with non clean session

[aep]

when not setting clean-session, the broker may answer a CONNECT with the previous subscriptions as REGISTER message, as specified in MQTT-SN_spec_v1.2.pdf paragraph 6.10.

however, mqtt-sn-sub espects SUBSCRIBE to be immediately followed by SUBACK and dies on any message left in the brokers queue. This will probably happen with a leftover PUBLISH as well.

./mqtt-sn-sub -d -t foo -1  -i blabla -c
Sending CONNECT packet...
waiting for packet...
Received 3 bytes. Type=CONNACK.
CONNACK return code: 0x00
Sending SUBSCRIBE packet...
waiting for packet...
Received 13 bytes. Type=REGISTER.
Was expecting SUBACK packet but received: 0x0a

a

[njh]

Thanks for reporting... not quite sure how I'm going to fix this yet!

Think it may require having a packet buffer, so that they can be processed out of order.

[njh]

This should be fixed now - mqtt-sn-sub should cope with the server sending both Register and Publish packets straight after the Connack.

Do you mind double checking?