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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>dl: XML Security Library Reference Manual</title>
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<td width="100%" align="left" class="shortcuts">
<a href="#" class="shortcut">Top</a><span id="nav_description"> <span class="dim">|</span>
<a href="#xmlsec-dl.description" class="shortcut">Description</a></span>
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<div class="refentry">
<a name="xmlsec-dl"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="xmlsec-dl.top_of_page"></a>dl</span></h2>
<p>dl — Dynamic crypto-engine library loading functions.</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="xmlsec-dl.stability-level"></a><h2>Stability Level</h2>
<a href="http://foldoc.org/Stable"><span class="acronym">Stable</span></a>, unless otherwise indicated
</div>
<div class="refsect1">
<a name="xmlsec-dl.functions"></a><h2>Functions</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col>
<col>
</colgroup>
<tbody>
<tr>
<td class="function_type">
<font><span class="returnvalue">int</span></font>
</td>
<td class="function_name">
<a class="link" href="xmlsec-dl.html#xmlSecCryptoDLFunctionsRegisterKeyDataAndTransforms" title="xmlSecCryptoDLFunctionsRegisterKeyDataAndTransforms ()">xmlSecCryptoDLFunctionsRegisterKeyDataAndTransforms</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<font><span class="returnvalue">int</span></font>
</td>
<td class="function_name">
<a class="link" href="xmlsec-dl.html#xmlSecCryptoDLInit" title="xmlSecCryptoDLInit ()">xmlSecCryptoDLInit</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<font><span class="returnvalue">int</span></font>
</td>
<td class="function_name">
<a class="link" href="xmlsec-dl.html#xmlSecCryptoDLShutdown" title="xmlSecCryptoDLShutdown ()">xmlSecCryptoDLShutdown</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<font><span class="returnvalue">int</span></font>
</td>
<td class="function_name">
<a class="link" href="xmlsec-dl.html#xmlSecCryptoDLLoadLibrary" title="xmlSecCryptoDLLoadLibrary ()">xmlSecCryptoDLLoadLibrary</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<font><span class="returnvalue">xmlSecCryptoDLFunctionsPtr</span></font>
</td>
<td class="function_name">
<a class="link" href="xmlsec-dl.html#xmlSecCryptoDLGetLibraryFunctions" title="xmlSecCryptoDLGetLibraryFunctions ()">xmlSecCryptoDLGetLibraryFunctions</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<font><span class="returnvalue">int</span></font>
</td>
<td class="function_name">
<a class="link" href="xmlsec-dl.html#xmlSecCryptoDLUnloadLibrary" title="xmlSecCryptoDLUnloadLibrary ()">xmlSecCryptoDLUnloadLibrary</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<font><span class="returnvalue">int</span></font>
</td>
<td class="function_name">
<a class="link" href="xmlsec-dl.html#xmlSecCryptoDLSetFunctions" title="xmlSecCryptoDLSetFunctions ()">xmlSecCryptoDLSetFunctions</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<font><span class="returnvalue">xmlSecCryptoDLFunctionsPtr</span></font>
</td>
<td class="function_name">
<a class="link" href="xmlsec-dl.html#xmlSecCryptoDLGetFunctions" title="xmlSecCryptoDLGetFunctions ()">xmlSecCryptoDLGetFunctions</a> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="xmlsec-dl.description"></a><h2>Description</h2>
<p></p>
</div>
<div class="refsect1">
<a name="xmlsec-dl.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="xmlSecCryptoDLFunctionsRegisterKeyDataAndTransforms"></a><h3>xmlSecCryptoDLFunctionsRegisterKeyDataAndTransforms ()</h3>
<pre class="programlisting"><font><span class="returnvalue">int</span></font>
xmlSecCryptoDLFunctionsRegisterKeyDataAndTransforms
(<em class="parameter"><code><font><span class="type">xmlSecCryptoDLFunctionsPtr</span></font> functions</code></em>);</pre>
<p>Registers the key data and transforms klasses from <em class="parameter"><code>functions</code></em>
table in xmlsec.</p>
<div class="refsect3">
<a name="xmlSecCryptoDLFunctionsRegisterKeyDataAndTransforms.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col>
<col>
<col>
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>functions</p></td>
<td class="parameter_description"><p>the functions table.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="xmlSecCryptoDLFunctionsRegisterKeyDataAndTransforms.returns"></a><h4>Returns</h4>
<p> 0 on success or a negative value if an error occurs.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="xmlSecCryptoDLInit"></a><h3>xmlSecCryptoDLInit ()</h3>
<pre class="programlisting"><font><span class="returnvalue">int</span></font>
xmlSecCryptoDLInit (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>Initializes dynamic loading engine. This is an internal function
and should not be called by application directly.</p>
<div class="refsect3">
<a name="xmlSecCryptoDLInit.returns"></a><h4>Returns</h4>
<p> 0 on success or a negative value if an error occurs.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="xmlSecCryptoDLShutdown"></a><h3>xmlSecCryptoDLShutdown ()</h3>
<pre class="programlisting"><font><span class="returnvalue">int</span></font>
xmlSecCryptoDLShutdown (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>Shutdowns dynamic loading engine. This is an internal function
and should not be called by application directly.</p>
<div class="refsect3">
<a name="xmlSecCryptoDLShutdown.returns"></a><h4>Returns</h4>
<p> 0 on success or a negative value if an error occurs.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="xmlSecCryptoDLLoadLibrary"></a><h3>xmlSecCryptoDLLoadLibrary ()</h3>
<pre class="programlisting"><font><span class="returnvalue">int</span></font>
xmlSecCryptoDLLoadLibrary (<em class="parameter"><code>const <font><span class="type">xmlChar</span></font> *crypto</code></em>);</pre>
<p>Loads the xmlsec-$crypto library. This function is NOT thread safe,
application MUST NOT call <a class="link" href="xmlsec-dl.html#xmlSecCryptoDLLoadLibrary" title="xmlSecCryptoDLLoadLibrary ()"><span class="type">xmlSecCryptoDLLoadLibrary</span></a>, <a class="link" href="xmlsec-dl.html#xmlSecCryptoDLGetLibraryFunctions" title="xmlSecCryptoDLGetLibraryFunctions ()"><span class="type">xmlSecCryptoDLGetLibraryFunctions</span></a>,
and <a class="link" href="xmlsec-dl.html#xmlSecCryptoDLUnloadLibrary" title="xmlSecCryptoDLUnloadLibrary ()"><span class="type">xmlSecCryptoDLUnloadLibrary</span></a> functions from multiple threads.</p>
<div class="refsect3">
<a name="xmlSecCryptoDLLoadLibrary.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col>
<col>
<col>
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>crypto</p></td>
<td class="parameter_description"><p>the desired crypto library name ("openssl", "nss", ...). If NULL
then the default crypto engine will be used.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="xmlSecCryptoDLLoadLibrary.returns"></a><h4>Returns</h4>
<p> 0 on success or a negative value if an error occurs.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="xmlSecCryptoDLGetLibraryFunctions"></a><h3>xmlSecCryptoDLGetLibraryFunctions ()</h3>
<pre class="programlisting"><font><span class="returnvalue">xmlSecCryptoDLFunctionsPtr</span></font>
xmlSecCryptoDLGetLibraryFunctions (<em class="parameter"><code>const <font><span class="type">xmlChar</span></font> *crypto</code></em>);</pre>
<p>Loads the xmlsec-$crypto library and gets global crypto functions/transforms/keys data/keys store
table. This function is NOT thread safe, application MUST NOT call <a class="link" href="xmlsec-dl.html#xmlSecCryptoDLLoadLibrary" title="xmlSecCryptoDLLoadLibrary ()"><span class="type">xmlSecCryptoDLLoadLibrary</span></a>,
<a class="link" href="xmlsec-dl.html#xmlSecCryptoDLGetLibraryFunctions" title="xmlSecCryptoDLGetLibraryFunctions ()"><span class="type">xmlSecCryptoDLGetLibraryFunctions</span></a>, and <a class="link" href="xmlsec-dl.html#xmlSecCryptoDLUnloadLibrary" title="xmlSecCryptoDLUnloadLibrary ()"><span class="type">xmlSecCryptoDLUnloadLibrary</span></a> functions from multiple threads.</p>
<div class="refsect3">
<a name="xmlSecCryptoDLGetLibraryFunctions.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col>
<col>
<col>
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>crypto</p></td>
<td class="parameter_description"><p>the desired crypto library name ("openssl", "nss", ...).</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="xmlSecCryptoDLGetLibraryFunctions.returns"></a><h4>Returns</h4>
<p> the table or NULL if an error occurs.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="xmlSecCryptoDLUnloadLibrary"></a><h3>xmlSecCryptoDLUnloadLibrary ()</h3>
<pre class="programlisting"><font><span class="returnvalue">int</span></font>
xmlSecCryptoDLUnloadLibrary (<em class="parameter"><code>const <font><span class="type">xmlChar</span></font> *crypto</code></em>);</pre>
<p>Unloads the xmlsec-$crypto library. All pointers to this library
functions tables became invalid. This function is NOT thread safe,
application MUST NOT call <a class="link" href="xmlsec-dl.html#xmlSecCryptoDLLoadLibrary" title="xmlSecCryptoDLLoadLibrary ()"><span class="type">xmlSecCryptoDLLoadLibrary</span></a>, <a class="link" href="xmlsec-dl.html#xmlSecCryptoDLGetLibraryFunctions" title="xmlSecCryptoDLGetLibraryFunctions ()"><span class="type">xmlSecCryptoDLGetLibraryFunctions</span></a>,
and <a class="link" href="xmlsec-dl.html#xmlSecCryptoDLUnloadLibrary" title="xmlSecCryptoDLUnloadLibrary ()"><span class="type">xmlSecCryptoDLUnloadLibrary</span></a> functions from multiple threads.</p>
<div class="refsect3">
<a name="xmlSecCryptoDLUnloadLibrary.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col>
<col>
<col>
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>crypto</p></td>
<td class="parameter_description"><p>the desired crypto library name ("openssl", "nss", ...).</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="xmlSecCryptoDLUnloadLibrary.returns"></a><h4>Returns</h4>
<p> 0 on success or a negative value if an error occurs.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="xmlSecCryptoDLSetFunctions"></a><h3>xmlSecCryptoDLSetFunctions ()</h3>
<pre class="programlisting"><font><span class="returnvalue">int</span></font>
xmlSecCryptoDLSetFunctions (<em class="parameter"><code><font><span class="type">xmlSecCryptoDLFunctionsPtr</span></font> functions</code></em>);</pre>
<p>Sets global crypto functions/transforms/keys data/keys store table.</p>
<div class="refsect3">
<a name="xmlSecCryptoDLSetFunctions.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col>
<col>
<col>
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>functions</p></td>
<td class="parameter_description"><p>the new table</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="xmlSecCryptoDLSetFunctions.returns"></a><h4>Returns</h4>
<p> 0 on success or a negative value if an error occurs.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="xmlSecCryptoDLGetFunctions"></a><h3>xmlSecCryptoDLGetFunctions ()</h3>
<pre class="programlisting"><font><span class="returnvalue">xmlSecCryptoDLFunctionsPtr</span></font>
xmlSecCryptoDLGetFunctions (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>Gets global crypto functions/transforms/keys data/keys store table.</p>
<div class="refsect3">
<a name="xmlSecCryptoDLGetFunctions.returns"></a><h4>Returns</h4>
<p> the table.</p>
</div>
</div>
</div>
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