NodeJS Port Scanner - Requesting Help!

Hey All,​Just need some help with this port scanner that im mucking around with.I have put it up on github if someone can let me know where i have gone wrong.​Here is a dump of the code:​var net = require('net'); function checkHost(host, callback) { for (port = 1; port <= 10000; port++) { (function(){ portCheck(host, port, callback)})(); } } function portCheck(host, port, callback) { var socket = new net.Socket(), status = null; socket.on('connect', function() {status = 'open';socket.end();}); socket.setTimeout(1500); socket.on('timeout', function() {status = 'closed';socket.destroy();}); socket.on('error', function(exception) {status = 'closed';}); socket.on('close', function(exception) {callback(null, status,host,port);}); socket.connect(port, host); } function scanCallback(error, status, host, port){ if(status == "open"){ console.log("Reader found: ", host, port, status); } } function singleHost() { checkHost('10.1.1.1', scanCallback); } function multiHost() { var list = ['10.1.1.1','10.1.1.2']; for(var i in list){ checkHost(list[i], scanCallback); } } //Single host - returns ports ok - if others commented out setTimeout(singleHost, 100); // List with two hosts -- they both return nil setTimeout(multiHost, 5000);

Submitted April 23, 2019 at 01:24PM by b7001