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3c89e089fc
socket:connect(host.ip, port.number) socket:connect(host.ip, port.number, port.protocol) to this: socket:connect(host, port) connect can take host and port tables now, and the default protocol is taken from the port table if possible.
104 lines
2.8 KiB
Lua
104 lines
2.8 KiB
Lua
description = [[
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Retrieves or sets the ready message on printers that support the Printer
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Job Language. This includes most PostScript printers that listen on port
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9100. Without an argument, displays the current ready message. With the
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<code>pjl_ready_message</code> script argument, displays the old ready
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message and changes it to the message given.
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]]
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---
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-- @arg pjl_ready_message Ready message to display.
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-- @output
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-- 9100/tcp open jetdirect
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-- |_ pjl-ready-message: "READY" changed to "p0wn3d pr1nt3r"
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-- @usage
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-- nmap --script=pjl-ready-message.nse \
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-- --script-args='pjl_ready_message="your message here"'
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author = "Aaron Leininger"
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license = "Same as Nmap--See http://nmap.org/book/man-legal.html"
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categories = {"intrusive"}
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require "nmap"
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require "shortport"
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portrule = shortport.port_or_service(9100, "jetdirect")
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local function parse_response(response)
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local msg
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local line
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for line in response:gmatch(".-\n") do
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msg = line:match("^DISPLAY=\"(.*)\"")
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if msg then
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return msg
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end
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end
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end
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action = function(host, port)
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local status --to be used to grab the existing status of the display screen before changing it.
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local newstatus --used to repoll the printer after setting the display to check that the probe worked.
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local statusmsg --stores the PJL command to get the printer's status
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local response --stores the response sent over the network from the printer by the PJL status command
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statusmsg="@PJL INFO STATUS\n"
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local rdymsg="" --string containing text to send to the printer.
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local rdymsgarg="" --will contain the argument from the command line if one exists
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local socket = nmap.new_socket()
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socket:set_timeout(15000)
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try = nmap.new_try(function() socket:close() end)
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try(socket:connect(host, port))
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try(socket:send(statusmsg)) --this block gets the current display status
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response,data=socket:receive()
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if not response then --send an initial probe. If no response, send nothing further.
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socket:close()
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if nmap.verbosity() > 0 then
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return "No response from printer: "..data
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else
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return nil
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end
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end
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status = parse_response(data)
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if not status then
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if nmap.verbosity() > 0 then
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return "Error reading printer response: "..data
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else
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return nil
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end
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end
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rdymsgarg = nmap.registry.args.pjl_ready_message
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if not rdymsgarg then
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if status then
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return "\""..status.."\""
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else
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return nil
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end
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end
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rdymsg="@PJL RDYMSG DISPLAY = \""..rdymsgarg.."\"\r\n"
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try(socket:send(rdymsg)) --actually set the display message here.
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try(socket:send(statusmsg)) --this block gets the status again for comparison
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response,data=socket:receive()
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if not response then
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socket:close()
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return "\""..status.."\""
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end
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newstatus=parse_response(data)
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if not newstatus then
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socket:close()
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return "\""..status.."\""
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end
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socket:close()
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return "\""..status.."\" changed to \""..newstatus.."\""
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end
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