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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;

Implements the telnet echo option RFC 857.

Author(s):
Bruno D'Avanzo
public class EchoOptionHandler extends TelnetOptionHandler
{
    
Constructor for the EchoOptionHandler. Allows defining desired initial setting for local/remote activation of this option and behaviour in case a local/remote activation request for this option is received.

Parameters:
initlocal - if set to true, a WILL is sent upon connection.
initremote - if set to true, a DO is sent upon connection.
acceptlocal - if set to true, any DO request is accepted.
acceptremote - if set to true, any WILL request is accepted.
    public EchoOptionHandler(boolean initlocalboolean initremote,
                                boolean acceptlocalboolean acceptremote)
    {
        super(.initlocalinitremote,
                                      acceptlocalacceptremote);
    }

    
Constructor for the EchoOptionHandler. Initial and accept behaviour flags are set to false
    public EchoOptionHandler()
    {
        super(.falsefalsefalsefalse);
    }

    
Implements the abstract method of TelnetOptionHandler.

Parameters:
suboptionData - the sequence received, whithout IAC SB & IAC SE
suboptionLength - the length of data in suboption_data

Returns:
always null (no response to subnegotiation)
    @Override
    public int[] answerSubnegotiation(int suboptionData[],
                                        int suboptionLength)
    {
        return null;
    }

    
Implements the abstract method of TelnetOptionHandler.

Returns:
always null (no response to subnegotiation)
    @Override
    public int[] startSubnegotiationLocal()
    {
        return null;
    }

    
Implements the abstract method of TelnetOptionHandler.

Returns:
always null (no response to subnegotiation)
    @Override
    public int[] startSubnegotiationRemote()
    {
        return null;
    }
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