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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<title>SSPIJNIClient (jTDS API)</title>
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<div class="subTitle">net.sourceforge.jtds.util</div>
<h2 title="Class SSPIJNIClient" class="title">Class SSPIJNIClient</h2>
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<li>java.lang.Object</li>
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<pre>public class <span class="strong">SSPIJNIClient</span>
extends java.lang.Object</pre>
<div class="block">A JNI client to SSPI based CPP program (DLL) that returns the user
credentials for NTLM authentication.
<p/>
The DLL name is ntlmauth.dll.</div>
<dl><dt><span class="strong">Author:</span></dt>
<dd>Magendran Sathaiah (mahi@aztec.soft.net)</dd></dl>
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<td class="colFirst"><code>private boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/util/SSPIJNIClient.html#initialized">initialized</a></strong></code>
<div class="block">SSPI client initialized flag.</div>
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<td class="colFirst"><code>private static boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/util/SSPIJNIClient.html#libraryLoaded">libraryLoaded</a></strong></code>
<div class="block">SSPI native library loaded flag.</div>
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<tr class="altColor">
<td class="colFirst"><code>private static <a href="../../../../net/sourceforge/jtds/util/SSPIJNIClient.html" title="class in net.sourceforge.jtds.util">SSPIJNIClient</a></code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/util/SSPIJNIClient.html#thisInstance">thisInstance</a></strong></code>
<div class="block">Singleton instance.</div>
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<td class="colFirst"><code>private </code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/util/SSPIJNIClient.html#SSPIJNIClient()">SSPIJNIClient</a></strong>()</code>
<div class="block">Private constructor for singleton.</div>
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<td class="colFirst"><code>static <a href="../../../../net/sourceforge/jtds/util/SSPIJNIClient.html" title="class in net.sourceforge.jtds.util">SSPIJNIClient</a></code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/util/SSPIJNIClient.html#getInstance()">getInstance</a></strong>()</code>
<div class="block">Returns the singleton <code>SSPIJNIClient</code> instance.</div>
</td>
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<td class="colFirst"><code>private void</code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/util/SSPIJNIClient.html#initialize()">initialize</a></strong>()</code>
<div class="block">Initializes the SSPI client.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/util/SSPIJNIClient.html#invokeInitialize()">invokeInitialize</a></strong>()</code>
<div class="block">Calls <code>#initialize()</code> if the SSPI client is not already inited.</div>
</td>
</tr>
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<td class="colFirst"><code>byte[]</code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/util/SSPIJNIClient.html#invokePrepareSSORequest()">invokePrepareSSORequest</a></strong>()</code>
<div class="block">Calls <code>#prepareSSORequest()</code> to prepare the NTLM TYPE-1 message.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>byte[]</code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/util/SSPIJNIClient.html#invokePrepareSSOSubmit(byte[])">invokePrepareSSOSubmit</a></strong>(byte[] buf)</code>
<div class="block">Calls <code>#prepareSSOSubmit(byte[], long)</code> to prepare the NTLM TYPE-3
message.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/util/SSPIJNIClient.html#invokeUnInitialize()">invokeUnInitialize</a></strong>()</code>
<div class="block">Calls <code>#unInitialize()</code> if the SSPI client is inited.</div>
</td>
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<tr class="altColor">
<td class="colFirst"><code>private byte[]</code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/util/SSPIJNIClient.html#prepareSSORequest()">prepareSSORequest</a></strong>()</code>
<div class="block">Prepares the NTLM TYPE-1 message and returns it as a
<code>byte[]</code>.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>private byte[]</code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/util/SSPIJNIClient.html#prepareSSOSubmit(byte[], long)">prepareSSOSubmit</a></strong>(byte[] buf,
long size)</code>
<div class="block">Prepares the NTLM TYPE-3 message using the current user's credentials.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>private void</code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/util/SSPIJNIClient.html#unInitialize()">unInitialize</a></strong>()</code>
<div class="block">Uninitializes the SSPI client.</div>
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<h3>Methods inherited from class java.lang.Object</h3>
<code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li>
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<pre>private static <a href="../../../../net/sourceforge/jtds/util/SSPIJNIClient.html" title="class in net.sourceforge.jtds.util">SSPIJNIClient</a> thisInstance</pre>
<div class="block">Singleton instance.</div>
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<pre>private static boolean libraryLoaded</pre>
<div class="block">SSPI native library loaded flag.</div>
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<h4>initialized</h4>
<pre>private boolean initialized</pre>
<div class="block">SSPI client initialized flag.</div>
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<pre>private SSPIJNIClient()</pre>
<div class="block">Private constructor for singleton.</div>
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<pre>private void initialize()</pre>
<div class="block">Initializes the SSPI client.</div>
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<pre>private void unInitialize()</pre>
<div class="block">Uninitializes the SSPI client.</div>
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<pre>private byte[] prepareSSORequest()</pre>
<div class="block">Prepares the NTLM TYPE-1 message and returns it as a
<code>byte[]</code>.</div>
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<pre>private byte[] prepareSSOSubmit(byte[] buf,
long size)</pre>
<div class="block">Prepares the NTLM TYPE-3 message using the current user's credentials.
<p>
It needs the challenge BLOB and it's size as input. The challenge BLOB
is nothig but the TYPE-2 message that is received from the SQL Server.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>buf</code> - challenge BLOB</dd><dd><code>size</code> - challenge BLOB size</dd>
<dt><span class="strong">Returns:</span></dt><dd>NTLM TYPE-3 message</dd></dl>
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<pre>public static <a href="../../../../net/sourceforge/jtds/util/SSPIJNIClient.html" title="class in net.sourceforge.jtds.util">SSPIJNIClient</a> getInstance()
throws java.lang.Exception</pre>
<div class="block">Returns the singleton <code>SSPIJNIClient</code> instance.</div>
<dl><dt><span class="strong">Throws:</span></dt>
<dd><code>java.sql.SQLException</code> - if an error occurs during initialization</dd>
<dd><code>java.lang.Exception</code></dd></dl>
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<pre>public void invokeInitialize()</pre>
<div class="block">Calls <code>#initialize()</code> if the SSPI client is not already inited.</div>
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<pre>public void invokeUnInitialize()</pre>
<div class="block">Calls <code>#unInitialize()</code> if the SSPI client is inited.</div>
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<pre>public byte[] invokePrepareSSORequest()
throws java.lang.Exception</pre>
<div class="block">Calls <code>#prepareSSORequest()</code> to prepare the NTLM TYPE-1 message.</div>
<dl><dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.Exception</code> - if an error occurs during the call or the SSPI client
is uninitialized</dd></dl>
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<pre>public byte[] invokePrepareSSOSubmit(byte[] buf)
throws java.lang.Exception</pre>
<div class="block">Calls <code>#prepareSSOSubmit(byte[], long)</code> to prepare the NTLM TYPE-3
message.</div>
<dl><dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.Exception</code> - if an error occurs during the call or the SSPI client
is uninitialized</dd></dl>
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