Ethereal-dev: Re: [Ethereal-dev] Modbus/TCP bug report

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From: steve.shelley@xxxxxxxxx
Date: Wed, 07 May 2003 18:25:58 +0000
I'll submit the patch later today.

Steve Shelley
> Howdy,
> 
> I've found a bug with the Modbus/TCP dissector that when the "unit
> identifier" is greater than 128, it is displayed incorrectly in the tree
> view. It seems to get interpreted as an UINT32 (with sign extended from
> an INT8) rather than an UINT8. However, it is correctly shown in the
> packet list view.
> 
> I've attached two packet capture files (one with unit_id as 1; one with
> unit_id as 150) and the screen capture files for someone to find and fix
> the bug. This bug is of annoyance and inconvenient in nature. BTW, I'm
> using the 0.9.12 Win32 binary on WinME.
> 
> Regards,
> Ken