greyhack_ChatGPT_nmap_script

// Command: nmap
if params.len != 1 or params[0] == "-h" or params[0] == "--help" then exit(command_info("nmap_usage"))

ipAddress = params[0]

if not is_valid_ip(ipAddress) then exit("nmap: invalid IP address")

if not get_shell.host_computer.is_network_active then exit("nmap: no internet access")

isLanIp = is_lan_ip(ipAddress)

if isLanIp then
   router = get_router
else 
   router = get_router(ipAddress)
end if

if router == null then exit("nmap: IP address not found")

ports = null

if not isLanIp then
   ports = router.used_ports
else
   ports = router.device_ports(ipAddress)
end if

if ports == null then exit("nmap: no open ports")

if typeof(ports) == "string" then exit(ports)

print("Scanning IP address: " + ipAddress + "\n")

for port in ports
   if not port.is_closed then
      service_info = router.port_info(port)
      print("Port " + port.port_number + " is open, running " + service_info)
   end if
end for

print("\nScan completed")