Re: GDB / Fuzz test ?

[Dario Lombardo <lomato () gmail com>]

On Mon, Nov 12, 2018 at 9:40 AM Antoine d'Otreppe <a.dotreppe () aspyct org>
wrote:

> Hi folks!
>
> I'm progressing in the syncthing dissector. Wireshark compiled without
> hassle on Manjaro (Arch derivative). I love the wireshark codebase, it's
> refreshing to see a large project that just works...

Thanks :).


> Anyway I have two questions:
> 1. I'm not familiar with GDB and could not set a breakpoint in my
> functions. Is there a trick to it? How do you run it?

What's exactly your issue? When I run

gdb --args run/wireshark
break filename.c:xxx

I'm asked if I want to set a breakpoint for dynamically loaded library
(that's the case for dissectors, that live in libwireshark.so).

Then I run the code and I am stopped at the desired point. Are you running
something different?


> And a small note:
> The documentation indicates that you should run `./wireshark` to run the
> compiled version, whereas it really should be `./run/wireshark`. Same goes
> for the fuzz-test.sh.
>
> https://www.wireshark.org/docs/wsdg_html_chunked/ChSrcRunFirstTime.html#ChSrcRunFirstTimeUnix
> Not a big deal, but that was the only non-smooth part of the compilation
> process :)

Ok, I'll take them from here.

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