[cups.general] Is there a way I can spy on IPP transactions?

wtautz wtautz at cs.uwaterloo.ca
Thu Aug 10 09:55:43 PDT 2006


Michael Sweet wrote:
> wtautz wrote:
>   
>> Hi,
>>
>> I guess in answer to my query (see subject line of message) is that
>> I could use a network sniffer, but I would presume that I could create
>> an intermediate backend.
>>
>> spybackend:ipp// .....or something. Probably in the dev. docs but
>> these don't appear to exist for version 1.2.2.
>>     
>
> No, that won't help unless all you care about is the print data, in
> which case a port monitor might be the simpler approach; put it in
> /usr/lib/cups/monitor and then use:
>
>      lpadmin -p printer -o port-monitor=foo
>
> to associate it with the queue.  Port monitors use the same filter
> interface as everything else...
>
>   

Interesting. There is an actual directory called monitor. I notice that
it contains bcp and tbcp.
Binary communcation programs.....I'll have to do some more reading on
this bit...thanks for
the tip.

walter





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