de.mud.ssh

Class SshWrapper

java.lang.Object

de.mud.jta.Wrapper

de.mud.ssh.SshWrapper

public class SshWrapper
extends Wrapper

The telnet ssh is a sample class for how to use the SSH protocol handler of the JTA source package. To write a program using the wrapper you may use the following piece of code as an example:

   SshWrapper telnet = new SshWrapper();
   try {
     ssh.connect(args[0], 23);
     ssh.login("user", "password");
     ssh.setPrompt("user@host");
     ssh.waitfor("Terminal type?");
     ssh.send("dumb");
     System.out.println(ssh.send("ls -l"));
   } catch(java.io.IOException e) {
     e.printStackTrace();
   }
 

Please keep in mind that the password is visible for anyone who can download the class file. So use this only for public accounts or if you are absolutely sure nobody can see the file.

Maintainer:Marcus Mei???ner

Version:

$Id: SshWrapper.java 499 2005-09-29 08:24:54Z leo $

Author:

Matthias L. Jugel, Marcus Mei???ner

Field Summary

Fields

Modifier and Type	Field and Description
protected SshIO	handler

Fields inherited from class de.mud.jta.Wrapper

host, in, out, port, script, scriptHandler, socket

Constructor Summary

Constructors

Constructor and Description
SshWrapper()

Method Summary

Methods

Modifier and Type	Method and Description
int	read(byte[] b) Read data from the backend and decrypt it.
java.lang.String	send(java.lang.String cmd) Send a command to the remote host.

Methods inherited from class de.mud.jta.Wrapper

connect, disconnect, getPrompt, getTerminalType, getWindowSize, login, setLocalEcho, setPrompt, waitfor, waitfor, write

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

handler

protected SshIO handler

Constructor Detail

SshWrapper

public SshWrapper()

Method Detail

send

public java.lang.String send(java.lang.String cmd)
                      throws java.io.IOException

Send a command to the remote host. A newline is appended and if a prompt is set it will return the resulting data until the prompt is encountered.

Overrides:

send in class Wrapper

Parameters:

cmd - the command

Returns:

output of the command or null if no prompt is set

Throws:

java.io.IOException

read

public int read(byte[] b)
         throws java.io.IOException

Read data from the backend and decrypt it. This is a buffering read as the encrypted information is usually smaller than its decrypted pendant. So it will not read from the backend as long as there is data in the buffer.

Overrides:

read in class Wrapper

Parameters:

b - the buffer where to read the decrypted data in

Returns:

the amount of bytes actually read.

Throws:

java.io.IOException