Wireshark-dev: Re: [Wireshark-dev] Familiar with gtk/sctp_graph_dlg.c?
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From: Michael Tüxen <Michael.Tuexen@xxxxxxxxxxxxxxxxx>
Date: Tue, 26 Apr 2011 20:35:30 +0200
On Apr 26, 2011, at 7:03 PM, Guy Harris wrote:

> 
> On Apr 26, 2011, at 1:12 AM, Michael Tüxen wrote:
> 
>> The fields in the packet are 4 byte aligned. But if the whole structure might not...
>> So should we copy them?
> 
> ...or fetch them with pntohl().
> 
> Where are the contents of the structure coming from?  If they're coming from the raw packet data - i.e., if the pointer in question is pointing into the raw packet data from the tvbuff handed to the SCTP dissector - then not only might the data not be aligned on a 4-byte boundary, it might not even contain all the data you're looking at if the packet was cut short by a snapshot length.
I'll let Irene (who wrote the code) look into this. However, she is currently
on vacation. So it might take some time...

Best regards
Michael
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