Wireshark · Wireshark-dev: Re: [Wireshark-dev] How can I use preferences from other dissectors?

[Jeff Morriss <jeff.morriss.ws@xxxxxxxxx>]

Alex Lindberg wrote:
> I am building a heuristic dissector that shares a common tcp port used 
> by other dissectors.  This same port is used in my dissector and thus 
> must be checked as part of the heuristic testing.  This port can be 
> changed in other modules.  Is there a method to read the configuration 
> data from another module into my dissector?

Sure: make the variable non-static and import it into your dissector. 
(This assumes you can/don't mind modifying the other dissectors.)  For 
example, the "mtp3_standard" preference variable is used by quite a few 
different dissectors.

(Also: this might not work--at least easily--if you're doing it in a 
plugin on Windows.)