[paho-dev] RSMB - will messages

[Simon Vincent <simon.vincent@xxxxxxxxxx>]

Does RSMB fully support MQTTSN will messages?
RSMB will request a willmsg and willtopic if I set the will flag in a 
connect message however I find my will message is never sent if my node 
goes offline.

Also I found a bug in the embedded C MQTTSN library which stops you from 
receiving MQTTS_WILLMSGREQ and MQTTS_WILLTOPICREQ messages as they are 
only two bytes long. (see below for the one line fix)

Regards

Simon

diff --git a/src/MQTTSNPacket.c b/src/MQTTSNPacket.c
index 4f98b6a..944d716 100644
--- a/src/MQTTSNPacket.c
+++ b/src/MQTTSNPacket.c
@@ -249,7 +249,7 @@ int MQTTSNstrlen(MQTTSNString MQTTSNString)
 int MQTTSNPacket_read(unsigned char* buf, int buflen, int 
(*getfn)(unsigned char*, int))
 {
     int rc = MQTTSNPACKET_READ_ERROR;
-    const int MQTTSN_MIN_PACKET_LENGTH = 3;
+    const int MQTTSN_MIN_PACKET_LENGTH = 2;
     int len = 0;  /* the length of the whole packet including length 
field */
     int lenlen = 0;
     int datalen = 0;