Ethereal-dev: [Ethereal-dev] get a protocol id from port number

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Date: Mon, 8 Jan 2001 19:59:59 +0100 (CET)
Dear all,

I have a dissector_table and a port number. I want
to get the portocol id of the protocol dissector
registered under port in the dissector_table. How
do I get it? I need this id for 
proto_is_protocol_enabled.

Best regards
Michael