[Guy Harris <guy@xxxxxxxxxxxx>]

On Jan 21, 2004, at 11:43 AM, Pierre JUHEN wrote:

> The declaration of find_protocol_by_id was forgotten in 
> plugins/plugin_api_list.c in version 0.10.0, if this function is used 
> in the plugin.

Not forgotten, just not included.  No plugins that come with Ethereal 
use it, and nobody'd sent us a patch until now, so presumably either 
nobody'd created a plugin that used it until now or nobody who did had 
bothered to send us a patch.

How are you using it in your plugin?  (Note that it does a linear 
search of a long list, so you'd want to call it in your register 
routine and save the result.)  Note that if a dissector is called 
through a dissector handle or protocol table, you don't need to call it 
in order to see whether that dissector's protocol is enabled - that's 
done for you by the code that calls through handles and dissector 
tables.