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  /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You under the Apache License, Version 2.0
   * (the "License"); you may not use this file except in compliance with
   * the License.  You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
 
 package org.apache.commons.net.telnet;

The TelnetOption class cannot be instantiated and only serves as a storehouse for telnet option constants.

Details regarding Telnet option specification can be found in RFC 855.

 
 
 public class TelnetOption
 {
    
The maximum value an option code can have. This value is 255. *
 
     public static final int MAX_OPTION_VALUE = 255;
 
     public static final int BINARY = 0;
 
     public static final int ECHO = 1;
 
     public static final int PREPARE_TO_RECONNECT = 2;
 
     public static final int SUPPRESS_GO_AHEAD = 3;
 
     public static final int APPROXIMATE_MESSAGE_SIZE = 4;
 
     public static final int STATUS = 5;
 
     public static final int TIMING_MARK = 6;
 
     public static final int REMOTE_CONTROLLED_TRANSMISSION = 7;
 
     public static final int NEGOTIATE_OUTPUT_LINE_WIDTH = 8;
 
     public static final int NEGOTIATE_OUTPUT_PAGE_SIZE = 9;
 
     public static final int NEGOTIATE_CARRIAGE_RETURN = 10;
 
     public static final int NEGOTIATE_HORIZONTAL_TAB_STOP = 11;
 
     public static final int NEGOTIATE_HORIZONTAL_TAB = 12;
 
     public static final int NEGOTIATE_FORMFEED = 13;
 
     public static final int NEGOTIATE_VERTICAL_TAB_STOP = 14;
 
     public static final int NEGOTIATE_VERTICAL_TAB = 15;
 
     public static final int NEGOTIATE_LINEFEED = 16;
 
     public static final int EXTENDED_ASCII = 17;
 
     public static final int FORCE_LOGOUT = 18;
 
     public static final int BYTE_MACRO = 19;
 
     public static final int DATA_ENTRY_TERMINAL = 20;
 
     public static final int SUPDUP = 21;
 
     public static final int SUPDUP_OUTPUT = 22;
 
     public static final int SEND_LOCATION = 23;
 
     public static final int TERMINAL_TYPE = 24;
 
     public static final int END_OF_RECORD = 25;
 
     public static final int TACACS_USER_IDENTIFICATION = 26;
 
     public static final int OUTPUT_MARKING = 27;
 
     public static final int TERMINAL_LOCATION_NUMBER = 28;
 
     public static final int REGIME_3270 = 29;
 
     public static final int X3_PAD = 30;
 
     public static final int WINDOW_SIZE = 31;
 
    public static final int TERMINAL_SPEED = 32;
    public static final int REMOTE_FLOW_CONTROL = 33;
    public static final int LINEMODE = 34;
    public static final int X_DISPLAY_LOCATION = 35;
    public static final int OLD_ENVIRONMENT_VARIABLES = 36;
    public static final int AUTHENTICATION = 37;
    public static final int ENCRYPTION = 38;
    public static final int NEW_ENVIRONMENT_VARIABLES = 39;
    public static final int EXTENDED_OPTIONS_LIST = 255;
    @SuppressWarnings("unused")
    private static final int __FIRST_OPTION = ;
    private static final int __LAST_OPTION = ;
    private static final String __optionString[] = {
                "BINARY""ECHO""RCP""SUPPRESS GO AHEAD""NAME""STATUS",
                "TIMING MARK""RCTE""NAOL""NAOP""NAOCRD""NAOHTS""NAOHTD",
                "NAOFFD""NAOVTS""NAOVTD""NAOLFD""EXTEND ASCII""LOGOUT",
                "BYTE MACRO""DATA ENTRY TERMINAL""SUPDUP""SUPDUP OUTPUT",
                "SEND LOCATION""TERMINAL TYPE""END OF RECORD""TACACS UID",
                "OUTPUT MARKING""TTYLOC""3270 REGIME""X.3 PAD""NAWS""TSPEED",
                "LFLOW""LINEMODE""XDISPLOC""OLD-ENVIRON""AUTHENTICATION",
                "ENCRYPT""NEW-ENVIRON""TN3270E""XAUTH""CHARSET""RSP",
                "Com Port Control""Suppress Local Echo""Start TLS",
                "KERMIT""SEND-URL""FORWARD_X""""""",
                """""""""""""""""""",
                """""""""""""""""""",
                """""""""""""""""""",
                """""""""""""""""""",
                """""""""""""""""""",
                """""""""""""""""""",
                """""""""""""""""""",
                """""""""""""""""""",
                """""""""""TELOPT PRAGMA LOGON""TELOPT SSPI LOGON",
                "TELOPT PRAGMA HEARTBEAT""""""""",
                """""""""""""""""""",
                """""""""""""""""""",
                """""""""""""""""""",
                """""""""""""""""""",
                """""""""""""""""""",
                """""""""""""""""""",
                """""""""""""""""""",
                """""""""""""""""""",
                """""""""""""""""""",
                """""""""""""""""""",
                """""""""""""""""""",
                "Extended-Options-List"
            };


    
Returns the string representation of the telnet protocol option corresponding to the given option code.

Parameters:
code The option code of the telnet protocol option
Returns:
The string representation of the telnet protocol option.
    public static final String getOption(int code)
    {
        if([code].length() == 0)
        {
            return "UNASSIGNED";
        }
        else
        {
            return [code];
        }
    }


    
Determines if a given option code is valid. Returns true if valid, false if not.

Parameters:
code The option code to test.
Returns:
True if the option code is valid, false if not.
    public static final boolean isValidOption(int code)
    {
        return (code <= );
    }
    // Cannot be instantiated
    private TelnetOption()
    { }
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