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<h2><a name="telnet">Telnet</a></h2>
<h3>Description</h3>
Task to automate a remote telnet session. The task uses 
nested &lt;read&gt; to indicate strings to wait for, and
&lt;write&gt; tags to specify text to send.  

<p>If you do specify a userid and password, the system will 
assume a common unix prompt to wait on. This behavior can be easily over-ridden.</p>
<h3>Parameters</h3>
<table border="1" cellpadding="2" cellspacing="0">
  <tr>
    <th>Attribute</th>
    <th>Values</th>
    <th>Required</th>
  </tr>
  <tr>
     <td>userid</td>
     <td>the login id to use on the telnet server.</td>
     <td>Only if password is specified</td>
  </tr>
  <tr>
     <td>password</td>
     <td>the login password to use on the telnet server.</td>
     <td>Only if userid is specified</td>
  </tr>
  <tr>
     <td>server</td>
     <td>the address of the remote telnet server.</td>
     <td>Yes</td>
  </tr>
  <tr>
     <td>port</td>
     <td>the port number of the remote telnet server. Defaults to port 23.</td>
     <td>No</td>
  </tr>
  <tr>
     <td>initialCR</td>
     <td>send a cr after connecting (&quot;yes&quot;). Defaults to &quot;no&quot;.</td>
     <td>No</td>
  </tr>
  <tr>
     <td>timeout</td>
     <td>set a default timeout to wait for a response. Specified in seconds. Default is no timeout.</td>
     <td>No</td>
  </tr>
</table>
<h3><a name="nested">Nested Elements</a></h3>
The commands to send to the server, and responses to wait for, are
described as nested elements.  

<h4>read</h4>

<p>declare (as a text child of this element) a string to wait for.
The element supports the timeout attribute, which overrides any
timeout specified for the task as a whole. It also has a <tt>string<tt>
attribute, which is an alternative to specifying the string as 
a text element.
</p>
<i>Always declare an opening and closing
&lt;read&gt; element to ensure that statements are not sent before
the connection is ready, and that the connection is not broken before
the final command has completed.
</i>
<h4>write</h4>

<p>describes the text to send to the server. The <tt>echo</tt> boolean
attribute controls whether the string is echoed to the local log; 
this is "true" by default
</p>
<h3>Examples</h3>
A simple example of connecting to a server and running a command.  This assumes
 a prompt of &quot;ogin:&quot; for the userid, and a prompt of &quot;assword:&quot;
 for the password.

<blockquote><pre>
&lt;telnet userid=&quot;bob&quot; password=&quot;badpass&quot; server=&quot;localhost&quot;&gt;
   &lt;read&gt;/home/bob&lt;/read&gt;
   &lt;write&gt;ls&lt;/write&gt;
   &lt;read string=&quot;/home/bob&quot;/&gt;
&lt;/telnet&gt;
</pre></blockquote>

This task can be rewritten as:
<blockquote><pre>
&lt;telnet server=&quot;localhost&quot;&gt;
   &lt;read&gt;ogin:&lt;/read&gt;
   &lt;write&gt;bob&lt;/write&gt;
   &lt;read&gt;assword:&lt;/read&gt;
   &lt;write&gt;badpass&lt;/write&gt;
   &lt;read&gt;/home/bob&lt;/read&gt;
   &lt;write&gt;ls&lt;/write&gt;
   &lt;read&gt;/home/bob&lt;/read&gt;
&lt;/telnet&gt;
</pre></blockquote>

A timeout can be specified at the &lt;telnet&gt; level or at the &lt;read&gt; level. This will connect, issue a sleep command that is suppressed from displaying and wait 10 seconds before quitting.
<blockquote><pre>
&lt;telnet userid=&quot;bob&quot; password=&quot;badpass&quot; server=&quot;localhost&quot; timeout=&quot;20&quot;&gt;
   &lt;read&gt;/home/bob&lt;/read&gt;
   &lt;write echo=&quot;false&quot;&gt;sleep 15&lt;/write&gt;
   &lt;read timeout=&quot;10&quot;&gt;/home/bob&lt;/read&gt;
&lt;/telnet&gt;
</pre></blockquote>

The task can be used with other ports as well:
<blockquote><pre>
&lt;telnet port=&quot;80&quot; server=&quot;localhost&quot; timeout=&quot;20&quot;&gt;
   &lt;read/&gt;
   &lt;write&gt;GET / http/0.9&lt;/write&gt;
   &lt;write/&gt;
   &lt;read timeout=&quot;10&quot;&gt;&amp;lt;/HTML&amp;gt;&lt;/read&gt;
&lt;/telnet&gt;
</pre></blockquote>
<hr>
<p align="center">Copyright &copy; 2001 Apache Software Foundation. All rights
Reserved.</p>

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