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<title>io</title>
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<h1>
<a name="XMLSEC-IO"></a>io</h1>
<div class="REFNAMEDIV">
<a name="AEN7298"></a><h2>Name</h2>io -- Input/output support.</div>
<div class="REFSECT1">
<a name="XMLSEC-IO.FUNCTIONS"></a><h2>Functions</h2>
<div class="INFORMALTABLE">
<p></p>
<a name="AEN7303"></a><table border="0" frame="void" width="100%" class="CALSTABLE">
<col>
<col>
<tbody>
<tr>
<td><font><span class="RETURNVALUE">int</span></font></td>
<td>
<a href="xmlsec-io.html#XMLSECIOINIT">xmlSecIOInit</a> <span class="c_punctuation"><span class="PHRASE">()</span></span>
</td>
</tr>
<tr>
<td><font><span class="RETURNVALUE">void</span></font></td>
<td>
<a href="xmlsec-io.html#XMLSECIOSHUTDOWN">xmlSecIOShutdown</a> <span class="c_punctuation"><span class="PHRASE">()</span></span>
</td>
</tr>
<tr>
<td><font><span class="RETURNVALUE">void</span></font></td>
<td>
<a href="xmlsec-io.html#XMLSECIOCLEANUPCALLBACKS">xmlSecIOCleanupCallbacks</a> <span class="c_punctuation"><span class="PHRASE">()</span></span>
</td>
</tr>
<tr>
<td><font><span class="RETURNVALUE">int</span></font></td>
<td>
<a href="xmlsec-io.html#XMLSECIOREGISTERDEFAULTCALLBACKS">xmlSecIORegisterDefaultCallbacks</a> <span class="c_punctuation"><span class="PHRASE">()</span></span>
</td>
</tr>
<tr>
<td><font><span class="RETURNVALUE">int</span></font></td>
<td>
<a href="xmlsec-io.html#XMLSECIOREGISTERCALLBACKS">xmlSecIORegisterCallbacks</a> <span class="c_punctuation"><span class="PHRASE">()</span></span>
</td>
</tr>
<tr>
<td><font><span class="RETURNVALUE">xmlSecTransformId</span></font></td>
<td>
<a href="xmlsec-io.html#XMLSECTRANSFORMINPUTURIGETKLASS">xmlSecTransformInputURIGetKlass</a> <span class="c_punctuation"><span class="PHRASE">()</span></span>
</td>
</tr>
<tr>
<td><font><span class="RETURNVALUE">int</span></font></td>
<td>
<a href="xmlsec-io.html#XMLSECTRANSFORMINPUTURIOPEN">xmlSecTransformInputURIOpen</a> <span class="c_punctuation"><span class="PHRASE">()</span></span>
</td>
</tr>
<tr>
<td><font><span class="RETURNVALUE">int</span></font></td>
<td>
<a href="xmlsec-io.html#XMLSECTRANSFORMINPUTURICLOSE">xmlSecTransformInputURIClose</a> <span class="c_punctuation"><span class="PHRASE">()</span></span>
</td>
</tr>
</tbody>
</table>
<p></p>
</div>
</div>
<div class="REFSECT1">
<a name="XMLSEC-IO.OTHER"></a><h2>Types and Values</h2>
<div class="INFORMALTABLE">
<p></p>
<a name="AEN7364"></a><table border="0" frame="void" width="100%" class="CALSTABLE">
<col>
<col>
<tbody><tr>
<td>#define</td>
<td><a href="xmlsec-io.html#XMLSECTRANSFORMINPUTURIID">xmlSecTransformInputURIId</a></td>
</tr></tbody>
</table>
<p></p>
</div>
</div>
<div class="REFSECT1">
<a name="XMLSEC-IO.DESCRIPTION"></a><h2>Description</h2>
<p>Input/output support.</p>
</div>
<div class="REFSECT1">
<a name="XMLSEC-IO.FUNCTIONS_DETAILS"></a><h2>Functions</h2>
<div class="REFSECT2">
<a name="XMLSECIOINIT"></a><h3>xmlSecIOInit ()</h3>
<pre class="PROGRAMLISTING"><font><span class="RETURNVALUE">int</span></font>
xmlSecIOInit (<code class="PARAMETER"><span class="TYPE">void</span></code>);</pre>
<p>The IO initialization (called from <a href="xmlsec-xmlsec.html#XMLSECINIT"><span class="TYPE">xmlSecInit</span></a> function).
Applications should not call this function directly.</p>
<div class="REFSECT3">
<a name="AEN7388"></a><h4>Returns</h4>
<p> 0 on success or a negative value otherwise.</p>
</div>
</div>
<hr>
<div class="REFSECT2">
<a name="XMLSECIOSHUTDOWN"></a><h3>xmlSecIOShutdown ()</h3>
<pre class="PROGRAMLISTING"><font><span class="RETURNVALUE">void</span></font>
xmlSecIOShutdown (<code class="PARAMETER"><span class="TYPE">void</span></code>);</pre>
<p>The IO clenaup (called from <a href="xmlsec-xmlsec.html#XMLSECSHUTDOWN"><span class="TYPE">xmlSecShutdown</span></a> function).
Applications should not call this function directly.</p>
</div>
<hr>
<div class="REFSECT2">
<a name="XMLSECIOCLEANUPCALLBACKS"></a><h3>xmlSecIOCleanupCallbacks ()</h3>
<pre class="PROGRAMLISTING"><font><span class="RETURNVALUE">void</span></font>
xmlSecIOCleanupCallbacks (<code class="PARAMETER"><span class="TYPE">void</span></code>);</pre>
<p>Clears the entire input callback table. this includes the
compiled-in I/O.</p>
</div>
<hr>
<div class="REFSECT2">
<a name="XMLSECIOREGISTERDEFAULTCALLBACKS"></a><h3>xmlSecIORegisterDefaultCallbacks ()</h3>
<pre class="PROGRAMLISTING"><font><span class="RETURNVALUE">int</span></font>
xmlSecIORegisterDefaultCallbacks (<code class="PARAMETER"><span class="TYPE">void</span></code>);</pre>
<p>Registers the default compiled-in I/O handlers.</p>
<div class="REFSECT3">
<a name="AEN7423"></a><h4>Returns</h4>
<p> 0 on success or a negative value otherwise.</p>
</div>
</div>
<hr>
<div class="REFSECT2">
<a name="XMLSECIOREGISTERCALLBACKS"></a><h3>xmlSecIORegisterCallbacks ()</h3>
<pre class="PROGRAMLISTING"><font><span class="RETURNVALUE">int</span></font>
xmlSecIORegisterCallbacks (<code class="PARAMETER"><font><span class="TYPE">xmlInputMatchCallback</span></font> matchFunc</code>,
<code class="PARAMETER"><font><span class="TYPE">xmlInputOpenCallback</span></font> openFunc</code>,
<code class="PARAMETER"><font><span class="TYPE">xmlInputReadCallback</span></font> readFunc</code>,
<code class="PARAMETER"><font><span class="TYPE">xmlInputCloseCallback</span></font> closeFunc</code>);</pre>
<p>Register a new set of I/O callback for handling parser input.</p>
<div class="REFSECT3">
<a name="AEN7446"></a><h4>Parameters</h4>
<div class="INFORMALTABLE">
<p></p>
<a name="AEN7448"></a><table border="0" frame="void" width="100%" class="CALSTABLE">
<col>
<col>
<col>
<tbody>
<tr>
<td><p>matchFunc</p></td>
<td><p>the protocol match callback.</p></td>
<td> </td>
</tr>
<tr>
<td><p>openFunc</p></td>
<td><p>the open stream callback.</p></td>
<td> </td>
</tr>
<tr>
<td><p>readFunc</p></td>
<td><p>the read from stream callback.</p></td>
<td> </td>
</tr>
<tr>
<td><p>closeFunc</p></td>
<td><p>the close stream callback.</p></td>
<td> </td>
</tr>
</tbody>
</table>
<p></p>
</div>
</div>
<div class="REFSECT3">
<a name="AEN7475"></a><h4>Returns</h4>
<p> the 0 on success or a negative value if an error occurs.</p>
</div>
</div>
<hr>
<div class="REFSECT2">
<a name="XMLSECTRANSFORMINPUTURIGETKLASS"></a><h3>xmlSecTransformInputURIGetKlass ()</h3>
<pre class="PROGRAMLISTING"><font><span class="RETURNVALUE">xmlSecTransformId</span></font>
xmlSecTransformInputURIGetKlass (<code class="PARAMETER"><span class="TYPE">void</span></code>);</pre>
<p>The input uri transform klass. Reads binary data from an uri.</p>
<div class="REFSECT3">
<a name="AEN7488"></a><h4>Returns</h4>
<p> input URI transform id.</p>
</div>
</div>
<hr>
<div class="REFSECT2">
<a name="XMLSECTRANSFORMINPUTURIOPEN"></a><h3>xmlSecTransformInputURIOpen ()</h3>
<pre class="PROGRAMLISTING"><font><span class="RETURNVALUE">int</span></font>
xmlSecTransformInputURIOpen (<code class="PARAMETER"><a href="xmlsec-transforms.html#XMLSECTRANSFORM"><span class="TYPE">xmlSecTransformPtr</span></a> transform</code>,
<code class="PARAMETER">const <font><span class="TYPE">xmlChar</span></font> *uri</code>);</pre>
<p>Opens the given <code class="PARAMETER">uri</code>
for reading.</p>
<div class="REFSECT3">
<a name="AEN7506"></a><h4>Parameters</h4>
<div class="INFORMALTABLE">
<p></p>
<a name="AEN7508"></a><table border="0" frame="void" width="100%" class="CALSTABLE">
<col>
<col>
<col>
<tbody>
<tr>
<td><p>transform</p></td>
<td><p>the pointer to IO transform.</p></td>
<td> </td>
</tr>
<tr>
<td><p>uri</p></td>
<td><p>the URL to open.</p></td>
<td> </td>
</tr>
</tbody>
</table>
<p></p>
</div>
</div>
<div class="REFSECT3">
<a name="AEN7523"></a><h4>Returns</h4>
<p> 0 on success or a negative value otherwise.</p>
</div>
</div>
<hr>
<div class="REFSECT2">
<a name="XMLSECTRANSFORMINPUTURICLOSE"></a><h3>xmlSecTransformInputURIClose ()</h3>
<pre class="PROGRAMLISTING"><font><span class="RETURNVALUE">int</span></font>
xmlSecTransformInputURIClose (<code class="PARAMETER"><a href="xmlsec-transforms.html#XMLSECTRANSFORM"><span class="TYPE">xmlSecTransformPtr</span></a> transform</code>);</pre>
<p>Closes the given <code class="PARAMETER">transform</code>
and frees up resourses.</p>
<div class="REFSECT3">
<a name="AEN7538"></a><h4>Parameters</h4>
<div class="INFORMALTABLE">
<p></p>
<a name="AEN7540"></a><table border="0" frame="void" width="100%" class="CALSTABLE">
<col>
<col>
<col>
<tbody><tr>
<td><p>transform</p></td>
<td><p>the pointer to IO transform.</p></td>
<td> </td>
</tr></tbody>
</table>
<p></p>
</div>
</div>
<div class="REFSECT3">
<a name="AEN7549"></a><h4>Returns</h4>
<p> 0 on success or a negative value otherwise.</p>
</div>
</div>
</div>
<div class="REFSECT1">
<a name="XMLSEC-IO.OTHER_DETAILS"></a><h2>Types and Values</h2>
<div class="REFSECT2">
<a name="XMLSECTRANSFORMINPUTURIID"></a><h3>xmlSecTransformInputURIId</h3>
<pre class="PROGRAMLISTING">#define xmlSecTransformInputURIId</pre>
<p>The Input URI transform id.</p>
</div>
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