#!/usr/bin/lua

local invoker = require 'invoker'

local ipaddr = type(arg[1]) == "string" and arg[1] or 'mqtt.lnxall.com'
local portno = 3883
if type(arg[2]) == "string" then
	local pno = tonumber(arg[2])
	if pno then portno = pno end
end

io.stdout:write(string.format("TCP checking %s:%d...\n", ipaddr, portno))
io.stdout:flush()
print(invoker.tcpcheck(ipaddr, portno))
io.stdout:flush()
io.stderr:flush()
os.exit(0)