RE: [PATCH] nmap-service-probes: Misc database corrections, printer additions

[Aaron Leininger <rilian4 () hotmail com>]

> Another thing I just thought of: What happens if you write these
> commands to port 9100 to a printer that doesn't understand PJL? Will
> they be printed out on paper?

I tested out some of the PJL commands on a lexmark optera s 2455 laserjet. The commands behave slightly differently:

*The RDYMSG command does not print on paper but neither does it alter the ready message on a lexmarck. 
*The
ID command sent raw through ncat does elicit a response but it sets off
the printer's busy light. This does not seem to adversley affect the
ability to print as I was able to send text afterwards through the same
open ncat socket and it printed out. Also, the return data returned
"Lexmark Optera S" w/o the exact model # where an HP returns the model
# as well. 
*The STATUS command behaves similar to the ID command
except that it always returns a state of BUSY on a lexmark unless it is
asleep in which case it returns "Power Save Mode". Even when the
display read "READY". It always returned BUSY to my probe. 

As
with the HP LaserJet 5si, the lexmark does not seem to respond to the
probes from NSE but does respond from ncat. This is still a mystery to
me. 

I intend to find a non-PJL printer around here somewhere to test some of this stuff on.

-Aaron

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