//comment out if using a stand alone tool
nmap = function(target_ip)

	//uncomment is not using as import. 
	//if params.len != 1 or params[0] == "-h" or params[0] == "--help" then exit("<b>Usage: "+program_path.split("/")[-1]+" [ip_address]</b>")

	target_ip = params[0]
	if not is_valid_ip(target_ip) then exit(target_ip + " is not a valid ip") 

	if nslookup(target_ip) == "Not found" then
		exit("<color=red><b>That domain is not valid.</b></color>")
	end if

	target_router = get_router(target_ip)
	target_ports = target_router.used_ports

	router_data = []
	column = "<b>Number Type Version IP</b>"
	column = column + "\n" + "0" + " " + "kernel_router" + " " + target_router.kernel_version + " " + target_router.local_ip
	router_data.push({"port":"0", "port_info":"kernel_router", "port_info": target_router.kernel_version, "lan_ip":target_router.local_ip})
	for port in target_ports
		column = column + "\n" + port.port_number + " " + target_router.port_info(port) + " " + port.get_lan_ip
		router_data.push({"port":port.port_number,"port_info":target_router.port_info(port),"lan_ip":port.get_lan_ip})
	end for

	print("\nIP Address : " + target_ip)
	print(format_columns(column))

	return router_data

//comment out if using a stand alone tool
end function