[Andrew Schweitzer <a.schweitzer.grps@xxxxxxxxx>]

So do you have an idea where the problem lies? A bug in my code? An 
error in my design? An incorrect call to wireshark functions?

Here's some output from my program, printing info from pinfo before call 
to tcp_dissect_pdus, in each "get length" call, and in each each dissector:

//before call to tcp_dissect_pdu
++++++++++++++++++++++++++++++++++++++++++++++
pinfo:
	fragmented:1
	can_desegment:0
	saved_can_desegment:0
	desegment_offset:0
	desegment_len:0
	want_pdu_tracking:0
	bytes_until_next_pdu:0
pinfo->fd
	pkt_len:1514
	cap_len:1514
	cum_bytes:1514

//first pdu
get     message len:1088
dissect message len:1088
pinfo:		//called in dissector
	fragmented:1
	can_desegment:0
	saved_can_desegment:0
	desegment_offset:0
	desegment_len:0
	want_pdu_tracking:0
	bytes_until_next_pdu:0
pinfo->fd
	pkt_len:1514
	cap_len:1514
	cum_bytes:1514


//second pdu
get     message len:144
dissect message len:144
pinfo:	//called in dissector
	fragmented:1
	can_desegment:0
	saved_can_desegment:0
	desegment_offset:0
	desegment_len:0
	want_pdu_tracking:0
	bytes_until_next_pdu:0
pinfo->fd
	pkt_len:1514
	cap_len:1514
	cum_bytes:1514

//third pdu
get     message len:1900
dissect message len:1900
pinfo:	//called in dissector
	fragmented:1
	can_desegment:0
	saved_can_desegment:0
	desegment_offset:0
	desegment_len:0
	want_pdu_tracking:2
	bytes_until_next_pdu:1684
pinfo->fd
	pkt_len:1514
	cap_len:1514
	cum_bytes:1514

//whoops, exception throw. tcp_dissect_pdus doesn't return nornmally


Thanks,

Andy

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