Thanks Steve.

I have implemented the changes and it works as expected.

--Sunny

On Oct 29, 2008 2:49pm, Stephen Fisher <[EMAIL PROTECTED]> wrote:
On Wed, Oct 29, 2008 at 01:38:24PM -0700, [EMAIL PROTECTED] wrote:





> I have a packet dissector implemented on a single TCP Port (user


> enterable through Preferences).


>


> I would like to add multiple ports to this dissector.


>


> Looks like I have to use "prefs_register_range_preference" function in


> my protocol registration routine.





Yup.





> What are the other changes that need to be made to my packet dissector


> file?





Take a look at epan/dissectors/packet-xml.c for an example.


packet-http.c also has it, but it looks a bit more complicated.





Basically, you're registering a range that is stored in a string, then


you copy it with range_copy() and do a range_foreach() call to operate


on the copy of the list of ports and have it call (in xml's case)


range_add_xml_tcp_callback() for each port in the range list.


range_add_xml_tcp_callback() is a one line function that does a


dissector_add() on each tcp port it is handed.








Steve





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