"use strict"; var dnsPacket = _interopRequireWildcard(require("@leichtgewicht/dns-packet"), true); var _dgram = require("dgram"); function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function (nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); } function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; } const socket = _dgram.createSocket('udp4'); function getRandomInt(min, max) { return Math.floor(Math.random() * (max - min + 1)) + min; } const buf = dnsPacket.encode({ type: 'query', id: getRandomInt(1, 65534), flags: dnsPacket.RECURSION_DESIRED, questions: [{ type: 'A', name: 'google.com' }] }); socket.on('message', function (message, rinfo) { console.log(rinfo); console.log(dnsPacket.decode(message)); // prints out a response from google dns socket.close(); }); socket.send(buf, 0, buf.length, 53, '8.8.8.8');