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Commons Net example source code file (TerminalTypeOptionHandler.java)
The Commons Net TerminalTypeOptionHandler.java source code/* * 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 terminal type option RFC 1091. * <p> * @author Bruno D'Avanzo ***/ public class TerminalTypeOptionHandler extends TelnetOptionHandler { /*** * Terminal type ***/ private final String termType; /*** * Terminal type option ***/ protected static final int TERMINAL_TYPE = 24; /*** * Send (for subnegotiation) ***/ protected static final int TERMINAL_TYPE_SEND = 1; /*** * Is (for subnegotiation) ***/ protected static final int TERMINAL_TYPE_IS = 0; /*** * Constructor for the TerminalTypeOptionHandler. 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. * <p> * @param termtype - terminal type that will be negotiated. * @param initlocal - if set to true, a WILL is sent upon connection. * @param initremote - if set to true, a DO is sent upon connection. * @param acceptlocal - if set to true, any DO request is accepted. * @param acceptremote - if set to true, any WILL request is accepted. ***/ public TerminalTypeOptionHandler(String termtype, boolean initlocal, boolean initremote, boolean acceptlocal, boolean acceptremote) { super(TelnetOption.TERMINAL_TYPE, initlocal, initremote, acceptlocal, acceptremote); termType = termtype; } /*** * Constructor for the TerminalTypeOptionHandler. Initial and accept * behaviour flags are set to false * <p> * @param termtype - terminal type that will be negotiated. ***/ public TerminalTypeOptionHandler(String termtype) { super(TelnetOption.TERMINAL_TYPE, false, false, false, false); termType = termtype; } /*** * Implements the abstract method of TelnetOptionHandler. * <p> * @param suboptionData - the sequence received, whithout IAC SB & IAC SE * @param suboptionLength - the length of data in suboption_data * <p> * @return terminal type information ***/ @Override public int[] answerSubnegotiation(int suboptionData[], int suboptionLength) { if ((suboptionData != null) && (suboptionLength > 1) && (termType != null)) { if ((suboptionData[0] == TERMINAL_TYPE) && (suboptionData[1] == TERMINAL_TYPE_SEND)) { int response[] = new int[termType.length() + 2]; response[0] = TERMINAL_TYPE; response[1] = TERMINAL_TYPE_IS; for (int ii = 0; ii < termType.length(); ii++) { response[ii + 2] = termType.charAt(ii); } return response; } } return null; } /*** * Implements the abstract method of TelnetOptionHandler. * <p> * @return always null (no response to subnegotiation) ***/ @Override public int[] startSubnegotiationLocal() { return null; } /*** * Implements the abstract method of TelnetOptionHandler. * <p> * @return always null (no response to subnegotiation) ***/ @Override public int[] startSubnegotiationRemote() { return null; } } Other Commons Net examples (source code examples)Here is a short list of links related to this Commons Net TerminalTypeOptionHandler.java source code file: |
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