--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/ch/ethz/ssh2/SimpleServerSessionCallback.java	Fri Jul 18 11:21:46 2014 -0700
@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 2006-2013 Christian Plattner. All rights reserved.
+ * Please refer to the LICENSE.txt for licensing details.
+ */
+
+package ch.ethz.ssh2;
+
+import java.io.IOException;
+
+/**
+ * A basic ServerSessionCallback implementation.
+ * <p>
+ * Note: you should derive from this class instead of implementing
+ * the {@link ServerSessionCallback} interface directly. This way
+ * your code works also in case the interface gets extended in future
+ * versions.
+ * 
+ * @author Christian
+ *
+ */
+public class SimpleServerSessionCallback implements ServerSessionCallback
+{
+	public Runnable requestShell(ServerSession ss) throws IOException
+	{
+		return null;
+	}
+
+	public Runnable requestExec(ServerSession ss, String command) throws IOException
+	{
+		return null;
+	}
+
+	public Runnable requestSubsystem(ServerSession ss, String subsystem) throws IOException
+	{
+		return null;
+	}
+	
+	public Runnable requestPtyReq(ServerSession ss, PtySettings pty) throws IOException
+	{
+		return null;
+	}
+
+	/**
+	 * By default, silently ignore passwd environment variables.
+	 */
+	public Runnable requestEnv(ServerSession ss, String name, String value) throws IOException
+	{
+		return new Runnable()
+		{	
+			public void run()
+			{
+				/* Do nothing */
+			}
+		};
+	}
+
+	public void requestWindowChange(ServerSession ss, int term_width_columns, int term_height_rows,
+			int term_width_pixels, int term_height_pixels) throws IOException
+	{
+	}
+
+}