1 files changed, 90 insertions, 0 deletions
diff --git a/org/apache/commons/net/telnet/EchoOptionHandler.java b/org/apache/commons/net/telnet/EchoOptionHandler.java
new file mode 100644
index 0000000..8c43f85
--- /dev/null
+++ b/org/apache/commons/net/telnet/EchoOptionHandler.java
@@ -0,0 +1,90 @@
+/*
+ * 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.
+ * <p>
+ * @author 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.
+     * <p>
+     * @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 EchoOptionHandler(boolean initlocal, boolean initremote,
+                                boolean acceptlocal, boolean acceptremote)
+    {
+        super(TelnetOption.ECHO, initlocal, initremote,
+                                      acceptlocal, acceptremote);
+    }
+
+    /***
+     * Constructor for the EchoOptionHandler. Initial and accept
+     * behaviour flags are set to false
+     ***/
+    public EchoOptionHandler()
+    {
+        super(TelnetOption.ECHO, false, false, false, false);
+    }
+
+    /***
+     * 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 always null (no response to subnegotiation)
+     ***/
+    @Override
+    public int[] answerSubnegotiation(int suboptionData[],
+                                        int suboptionLength)
+    {
+        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;
+    }
+}