code: public byte []
  getAddressBytes(int family) throws IOException {
  	String next = _getIdentifier("an address");
  	byte [] bytes = Address.toByteArray(next, family);
  	if (bytes == null)
  		throw exception("Invalid address: " + next);
  	return bytes;
  }
docs: Gets the next token from a tokenizer and converts it to a byte array
  containing an IP address.
  @param family The address family.
  @return The next token in the stream, as an byte array representing an IP
  address.
  @throws TextParseException The input was invalid or not a valid address.
  @throws IOException An I/O error occurred.
  @see Address