(function (exports) {
'use strict';

var pdns = module.exports.DNS_PACK = function () {

};

pdns.packHeader = function(h) {
  var val = 0;

  val += (h.qr     << 15) & 0x8000;
  val += (h.opcode << 11) & 0x7800;
  val += (h.aa     << 10) &  0x400;
  val += (h.tc     <<  9) &  0x200;
  val += (h.rd     <<  8) &  0x100;
  val += (h.ra     <<  7) &   0x80;
  val += (h.res1   <<  6) &   0x40;
  val += (h.res2   <<  5) &   0x20;
  val += (h.res3   <<  4) &   0x10;
  val += h.rcode          &    0xF;

  return val;
};

}('undefined' !== typeof window ? window : exports));