diff src/ch/ethz/ssh2/LocalStreamForwarder.java @ 273:91a31873c42a ganymed

start conversion from trilead to ganymed
author Carl Byington <carl@five-ten-sg.com>
date Fri, 18 Jul 2014 11:21:46 -0700
parents
children 071eccdff8ea
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/ch/ethz/ssh2/LocalStreamForwarder.java	Fri Jul 18 11:21:46 2014 -0700
@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2006-2011 Christian Plattner. All rights reserved.
+ * Please refer to the LICENSE.txt for licensing details.
+ */
+package ch.ethz.ssh2;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.net.InetAddress;
+
+import ch.ethz.ssh2.channel.Channel;
+import ch.ethz.ssh2.channel.ChannelManager;
+
+/**
+ * A <code>LocalStreamForwarder</code> forwards an Input- and Outputstream
+ * pair via the secure tunnel to another host (which may or may not be identical
+ * to the remote SSH-2 server).
+ *
+ * @author Christian Plattner
+ * @version 2.50, 03/15/10
+ */
+public class LocalStreamForwarder
+{
+	private ChannelManager cm;
+
+	private Channel cn;
+
+	LocalStreamForwarder(ChannelManager cm, String host_to_connect, int port_to_connect) throws IOException
+	{
+		this.cm = cm;
+		cn = cm.openDirectTCPIPChannel(host_to_connect, port_to_connect,
+				InetAddress.getLocalHost().getHostAddress(), 0);
+	}
+
+	/**
+	 * @return An <code>InputStream</code> object.
+	 * @throws IOException
+	 */
+	public InputStream getInputStream() throws IOException
+	{
+		return cn.getStdoutStream();
+	}
+
+	/**
+	 * Get the OutputStream. Please be aware that the implementation MAY use an
+	 * internal buffer. To make sure that the buffered data is sent over the
+	 * tunnel, you have to call the <code>flush</code> method of the
+	 * <code>OutputStream</code>. To signal EOF, please use the
+	 * <code>close</code> method of the <code>OutputStream</code>.
+	 *
+	 * @return An <code>OutputStream</code> object.
+	 * @throws IOException
+	 */
+	public OutputStream getOutputStream() throws IOException
+	{
+		return cn.getStdinStream();
+	}
+
+	/**
+	 * Close the underlying SSH forwarding channel and free up resources.
+	 * You can also use this method to force the shutdown of the underlying
+	 * forwarding channel. Pending output (OutputStream not flushed) will NOT
+	 * be sent. Pending input (InputStream) can still be read. If the shutdown
+	 * operation is already in progress (initiated from either side), then this
+	 * call is a no-op.
+	 *
+	 * @throws IOException
+	 */
+	public void close() throws IOException
+	{
+		cm.closeChannel(cn, "Closed due to user request.", true);
+	}
+}