var packet = require('dns-packet')
var dgram = require('dgram')

var socket = dgram.createSocket('udp4')

var buf = packet.encode({
  type: 'query',
  id: 1,
  questions: [{
    type: 'A',
    name: 'google.com'
  }]
})

socket.on('message', function (message) {
  console.log(packet.decode(message)) // prints out a response from google dns
})

socket.send(buf, 0, buf.length, 53, '8.8.8.8')

{
  type: 'query|response',
  id: optionalIdNumber,
  questions: [...],
  answers: [...],
  additionals: [...],
  authorities: [...]
}

{
  type: 'A', // or SRV, AAAA, etc
  name: 'google.com' // which record are you looking for
}

{
  type: 'A', // or SRV, AAAA, etc
  name: 'google.com', // which name is this record for
  ttl: optionalTimeToLiveInSeconds,
  (record specific data, see below)
}

{
  data: 'IPv4 address' // fx 127.0.0.1
}

{
  data: 'IPv6 address' // fx fe80::1
}

{
  data: Buffer('some text')
}

{
  data: Buffer('any binary data')
}

{
  data: {
    port: servicePort,
    target: serviceHostName,
    priority: optionalServicePriority,
    weight: optionalServiceWeight
  }
}

{
  data: {
    cpu: 'cpu info',
    os: 'os info'
  }
}

{
  data: 'points.to.another.record'
}

{
  data: 'cname.to.another.record'
}

{
  data: 'dname.to.another.record'
}