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