native-dns-packet

• Packet.parse(buffer) returns an instance of Packet
• Packet.write(buffer, packet) writes the given packet into the buffer, truncating where appropriate

var Packet = function () {
  this.header = {
    id: 0,
    qr: 0,
    opcode: 0,
    aa: 0,
    tc: 0,
    rd: 1,
    ra: 0,
    res1: 0,
    res2: 0,
    res3: 0,
    rcode: 0
  };
  this.question = [];
  this.answer = [];
  this.authority = [];
  this.additional = [];
  this.edns_options = [];
  this.payload = undefined;
};