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org.apache.commons.net.telnet.EchoOptionHandler |
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1 | /* |
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2 | * Copyright 2003-2004 The Apache Software Foundation |
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3 | * |
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4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
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5 | * you may not use this file except in compliance with the License. |
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6 | * You may obtain a copy of the License at |
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7 | * |
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8 | * http://www.apache.org/licenses/LICENSE-2.0 |
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9 | * |
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10 | * Unless required by applicable law or agreed to in writing, software |
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11 | * distributed under the License is distributed on an "AS IS" BASIS, |
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12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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13 | * See the License for the specific language governing permissions and |
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14 | * limitations under the License. |
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15 | */ |
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16 | package org.apache.commons.net.telnet; |
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17 | ||
18 | /*** |
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19 | * Implements the telnet echo option RFC 857. |
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20 | * <p> |
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21 | * @author Bruno D'Avanzo |
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22 | ***/ |
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23 | public class EchoOptionHandler extends TelnetOptionHandler |
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24 | { |
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25 | /*** |
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26 | * Constructor for the EchoOptionHandler. Allows defining desired |
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27 | * initial setting for local/remote activation of this option and |
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28 | * behaviour in case a local/remote activation request for this |
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29 | * option is received. |
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30 | * <p> |
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31 | * @param initlocal - if set to true, a WILL is sent upon connection. |
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32 | * @param initremote - if set to true, a DO is sent upon connection. |
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33 | * @param acceptlocal - if set to true, any DO request is accepted. |
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34 | * @param acceptremote - if set to true, any WILL request is accepted. |
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35 | ***/ |
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36 | public EchoOptionHandler(boolean initlocal, class="keyword">boolean initremote, |
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37 | boolean acceptlocal, class="keyword">boolean acceptremote) |
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38 | { |
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39 | 18 | super(TelnetOption.ECHO, initlocal, initremote, |
40 | acceptlocal, acceptremote); |
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41 | 18 | } |
42 | ||
43 | /*** |
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44 | * Constructor for the EchoOptionHandler. Initial and accept |
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45 | * behaviour flags are set to false |
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46 | ***/ |
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47 | public EchoOptionHandler() |
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48 | { |
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49 | 5 | super(TelnetOption.ECHO, false, false, false, false); |
50 | 5 | } |
51 | ||
52 | /*** |
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53 | * Implements the abstract method of TelnetOptionHandler. |
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54 | * <p> |
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55 | * @param suboptionData - the sequence received, whithout IAC SB & IAC SE |
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56 | * @param suboptionLength - the length of data in suboption_data |
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57 | * <p> |
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58 | * @return always null (no response to subnegotiation) |
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59 | ***/ |
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60 | public int[] answerSubnegotiation(class="keyword">int suboptionData[], |
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61 | int suboptionLength) |
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62 | { |
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63 | 1 | return null; |
64 | } |
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65 | ||
66 | /*** |
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67 | * Implements the abstract method of TelnetOptionHandler. |
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68 | * <p> |
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69 | * @return always null (no response to subnegotiation) |
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70 | ***/ |
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71 | public int[] startSubnegotiationLocal() |
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72 | { |
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73 | 3 | return null; |
74 | } |
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75 | ||
76 | /*** |
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77 | * Implements the abstract method of TelnetOptionHandler. |
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78 | * <p> |
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79 | * @return always null (no response to subnegotiation) |
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80 | ***/ |
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81 | public int[] startSubnegotiationRemote() |
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82 | { |
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83 | 1 | return null; |
84 | } |
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85 | } |
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