PrototypeBind(lookup6, handle, lookup);
    handle.bind = handle.bind6;
    handle.connect = handle.connect6;
    handle.send = handle.send6;
    return handle;
  }

  throw new ERR_SOCKET_BAD_TYPE();
}


function _createSocketHandle(address, port, addressType, fd, flags) {
  const handle = newHandle(addressType);
  let err;

  if (isInt32(fd) && fd > 0) {
    const type = guessHandleType(fd);
    if (type !== 'UDP') {
      err = UV_EINVAL;
    } else {
      err = handle.open(fd);
    }
  } else if (port || address) {
    err = handle.bind(address, port || 0, flags);
  }

  if (err) {
    handle.close();
    return err;
  }

  return handle;
}


module.exports = {
  kStateSymbol,
  _createSocketHandle,
  newHandle
};