#!/usr/bin/env node var mdns = require('./')() var path = require('path') var os = require('os') var announcing = process.argv.indexOf('--announce') > -1 if (process.argv.length < 3) { console.error('Usage: %s ', path.basename(process.argv[1])) process.exit(1) } var hostname = process.argv[2] if (announcing) { var ip = getIp() mdns.on('query', function (query, rinfo) { query.questions.forEach(function (q) { if (q.name === hostname) { console.log('Responding %s -> %s', q.name, ip) mdns.respond({ answers: [{ type: 'A', name: q.name, data: ip }] }, {port: rinfo.port}) } }) }) } else { mdns.on('response', function (response) { response.answers.forEach(function (answer) { if (answer.name === hostname) { console.log(answer.data) process.exit() } }) }) mdns.query(hostname, 'A') // Give responses 3 seconds to respond setTimeout(function () { console.error('Hostname not found') process.exit(1) }, 3000) } function getIp () { var networks = os.networkInterfaces() var found = '127.0.0.1' Object.keys(networks).forEach(function (k) { var n = networks[k] n.forEach(function (addr) { if (addr.family === 'IPv4' && !addr.internal) { found = addr.address } }) }) return found }