Hi,
Oke, quick review then.
First of all the code is a mess. That results in:
1. hard to look through.
2. hard to spot even obvious errors.
You forget to set initialized to TRUE in your handoff functions.
FT_BYTES, BASE_HEX should be FT_BYTES, BASE_NONE
Many inconsistencies in header blubs and labels.
value_string helen_vals[] isn't closed off by {0, NULL}
guint8 * ptr = (guint8*) tvb->real_data;
Going about this way of accessing tvbuff data leads guaranteed to failure.
For me it's enough to abort furher review of this code.
My advice: really read all of doc/README.developer and take the advice to hart.
Thanks,
Jaap
Brian Oleksa wrote:
Jaap
Eventually this might get licensed...but just not sure what direction we
will be going.
I have tracked down many many problems before when my code crashed
within the GUI...because I would get some what of
a decent error. But I am having a hard time tracking down this bug as it
runs fine in the GUI but not in tshark.
Doesn't tshark run off the same base code as the GUI does..?? If
so...then you think if it would crash in one that it would crash in the
other....wouldn't you think..??
Attached is my code. Any help is greatly appreciated.
Thank you
Brian
Jaap Keuter wrote:
Hi,
Well, your assumption is probably right, that your dissector has
something to do with it.
You can post it, but we prefer to spend our time on GPL'ed code. I
don't know what you license will be.
If you prefer not to publish your code you can probably find enough
clues in the documentation in the doc directory.
Thanks,
Jaap
Brian Oleksa wrote:
Chris and Jaap
Well.... I guess I can point out the obvious here:
I wrote a dissector that works fine with the GUI with no
problem...but it crashes when I use tshark.
HOWEVER... if I remove my dissector....then my pcap file loads fine
within tshark.
So the problem has to be with my dissector....correct..??
Is there anyway I can post my code so you can take a look..??
This is hard to track down as again everything works fine in the GUI
and I get NO real error message within tshark.
What do you think..?
Thanks,
Brian
Maynard, Chris wrote:
The file may not be corrupt but might contain packet(s) which are
exposing a tshark bug. If you can post the capture file, that would
probably help. If you don't wish to post it on the mailing list, you
can open a bug report and post it there instead, marking the file as
private if you so desire so only the core developers have access to it.
- Chris
-----Original Message-----
From: wireshark-dev-bounces@xxxxxxxxxxxxx
[mailto:wireshark-dev-bounces@xxxxxxxxxxxxx] On Behalf Of Brian Oleksa
Sent: Monday, November 23, 2009 12:59 PM
To: Developer support list for Wireshark
Subject: Re: [Wireshark-dev] wireshark GUI vs tshark
Jaap and Chris
I am running this on Win XP service pack 2.
I am using wireshark Version 1.2.4 (SVN Rev 30978).
The test.pcap file has been around for a while...so chances are it
is not corrupt. It never crashes using the GUI...it just crashes and
gives me that pop up when I run it with that tshark command.
This is about all the information that I can provide....unless you
can think of something else that you need..??
Thanks,
Brian
Jaap Keuter wrote:
Hi Brian,
Thanks for including the error report. It in itself doesn't tell
anything,
other than that a problem was detected. That's why Chris asked you
some
more questions on the whole situation. Maybe we can help you further
when
you look into them.
Thanks,
Jaap
On Mon, 23 Nov 2009 12:02:17 -0500, Brian Oleksa
<oleksab@xxxxxxxxxxxxxxxxxxxxxx> wrote:
Chris
I have attached the error this time....sorry about that. :-)
I get this error when I run with tshark using the following command:
tshark -nr test.pcap ip.dst==x.x.x.x
But when I filter in the GUI ... I have no problems.
Thanks,
Brian
Maynard, Chris wrote:
Any thoughts..??
My first thought was, "I guess you forgot to include the error." :)
In addition to the error, you might want to include some Wireshark
version information, what OS you're running on and any other
information
that you think might be relevant.
By the way, I tried a similar tshark command using Wireshark 1.2.4
on
Windows XP SP3 with no problems. Maybe you are running an older
version
of Wireshark with a known bug that has been fixed, or maybe your
test.pcap file is corrupt or exposes a Wireshark bug, in which case
a
bug report might be in order with the attached test.pcap file
included
so the core developers can analyze the error and find & fix the bug.
- Chris
-----Original Message-----
From: wireshark-dev-bounces@xxxxxxxxxxxxx
[mailto:wireshark-dev-bounces@xxxxxxxxxxxxx] On Behalf Of Brian
Oleksa
Sent: Sunday, November 22, 2009 10:49 PM
To: Developer support list for Wireshark
Subject: [Wireshark-dev] wireshark GUI vs tshark
Wiresharkers
When I use my dissector with the GUI... everything works fine. The
pcap
file that I load comes right up with NO problems. I can filter
(ip.dst==x.x.x.x) with no problems.
But if I try to open that same pcap file with tshark using the
following
command:
tshark -nr test.pcap ip.dst==x.x.x.x
The files appears to start loading.. then I get the following error.
Any thoughts..??
Thanks,
Brian