'use strict'; // pass a terminal arg var type = process.argv[2]; var count = parseInt(process.argv[3]) || 0; if (!type) { console.error("Usage: node aj-listener.js [count]"); console.error("Example: node aj-listener.js _service 0"); process.exit(1); } var PromiseA = require('bluebird'); var fs = PromiseA.promisifyAll(require('fs')); var dgram = require('dgram'); var server = dgram.createSocket({ type: 'udp4' , reuseAddr: true }); var handlers = {}; handlers.onError = function (err) { console.error("error:", err.stack); server.close(); }; handlers.onMessage = function (buffer) { var path = require('path'); var filename = type + '-' + count + '.mdns.bin'; var fullpath = path.join('samples', filename); count += 1; fs.writeFileAsync(fullpath, buffer).then(function () { console.log('wrote ' + buffer.length + ' bytes to ' + fullpath); }); }; handlers.onListening = function () { /*jshint validthis:true*/ var server = this; console.log(server.address()); server.setBroadcast(true); server.addMembership('224.0.0.251'); }; server.on('error', handlers.onError); server.on('message', handlers.onMessage); server.on('listening', handlers.onListening); // 53 dns // 5353 mdns server.bind(5353);