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<html>
<head>
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<title>buffer</title>
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<h1>
<a name="XMLSEC-BUFFER"></a>buffer</h1>
<div class="REFNAMEDIV">
<a name="AEN4565"></a><h2>Name</h2>buffer -- Binary buffer implementation.</div>
<div class="REFSYNOPSISDIV">
<a name="XMLSEC-BUFFER.SYNOPSIS"></a><h2>Synopsis</h2>
<pre class="SYNOPSIS">enum <a href="xmlsec-buffer.html#XMLSECALLOCMODE">xmlSecAllocMode</a>;
struct <a href="xmlsec-buffer.html#XMLSECBUFFER">xmlSecBuffer</a>;
<gtkdoclink href="INT"><span class="RETURNVALUE">int</span></gtkdoclink><a href="xmlsec-buffer.html#XMLSECBUFFERAPPEND">xmlSecBufferAppend</a> (<code class="PARAMETER"><a href="xmlsec-buffer.html#XMLSECBUFFER"><span class="TYPE">xmlSecBufferPtr</span></a> buf</code>,
<code class="PARAMETER">const <a href="xmlsec-xmlsec.html#XMLSECBYTE"><span class="TYPE">xmlSecByte</span></a> *data</code>,
<code class="PARAMETER"><a href="xmlsec-xmlsec.html#XMLSECSIZE"><span class="TYPE">xmlSecSize</span></a> size</code>);
<gtkdoclink href="INT"><span class="RETURNVALUE">int</span></gtkdoclink><a href="xmlsec-buffer.html#XMLSECBUFFERBASE64NODECONTENTREAD">xmlSecBufferBase64NodeContentRead</a> (<code class="PARAMETER"><a href="xmlsec-buffer.html#XMLSECBUFFER"><span class="TYPE">xmlSecBufferPtr</span></a> buf</code>,
<code class="PARAMETER"><gtkdoclink href="XMLNODE"><span class="TYPE">xmlNodePtr</span></gtkdoclink> node</code>);
<gtkdoclink href="INT"><span class="RETURNVALUE">int</span></gtkdoclink><a href="xmlsec-buffer.html#XMLSECBUFFERBASE64NODECONTENTWRITE">xmlSecBufferBase64NodeContentWrite</a> (<code class="PARAMETER"><a href="xmlsec-buffer.html#XMLSECBUFFER"><span class="TYPE">xmlSecBufferPtr</span></a> buf</code>,
<code class="PARAMETER"><gtkdoclink href="XMLNODE"><span class="TYPE">xmlNodePtr</span></gtkdoclink> node</code>,
<code class="PARAMETER"><gtkdoclink href="INT"><span class="TYPE">int</span></gtkdoclink> columns</code>);
<a href="xmlsec-buffer.html#XMLSECBUFFER"><span class="RETURNVALUE">xmlSecBufferPtr</span></a> <a href="xmlsec-buffer.html#XMLSECBUFFERCREATE">xmlSecBufferCreate</a> (<code class="PARAMETER"><a href="xmlsec-xmlsec.html#XMLSECSIZE"><span class="TYPE">xmlSecSize</span></a> size</code>);
<gtkdoclink href="XMLOUTPUTBUFFERPTR"><span class="RETURNVALUE">xmlOutputBufferPtr</span></gtkdoclink><a href="xmlsec-buffer.html#XMLSECBUFFERCREATEOUTPUTBUFFER">xmlSecBufferCreateOutputBuffer</a> (<code class="PARAMETER"><a href="xmlsec-buffer.html#XMLSECBUFFER"><span class="TYPE">xmlSecBufferPtr</span></a> buf</code>);
<gtkdoclink href="VOID"><span class="RETURNVALUE">void</span></gtkdoclink><a href="xmlsec-buffer.html#XMLSECBUFFERDESTROY">xmlSecBufferDestroy</a> (<code class="PARAMETER"><a href="xmlsec-buffer.html#XMLSECBUFFER"><span class="TYPE">xmlSecBufferPtr</span></a> buf</code>);
<gtkdoclink href="VOID"><span class="RETURNVALUE">void</span></gtkdoclink><a href="xmlsec-buffer.html#XMLSECBUFFEREMPTY">xmlSecBufferEmpty</a> (<code class="PARAMETER"><a href="xmlsec-buffer.html#XMLSECBUFFER"><span class="TYPE">xmlSecBufferPtr</span></a> buf</code>);
<gtkdoclink href="VOID"><span class="RETURNVALUE">void</span></gtkdoclink><a href="xmlsec-buffer.html#XMLSECBUFFERFINALIZE">xmlSecBufferFinalize</a> (<code class="PARAMETER"><a href="xmlsec-buffer.html#XMLSECBUFFER"><span class="TYPE">xmlSecBufferPtr</span></a> buf</code>);
<a href="xmlsec-xmlsec.html#XMLSECBYTE"><span class="RETURNVALUE">xmlSecByte</span></a> * <a href="xmlsec-buffer.html#XMLSECBUFFERGETDATA">xmlSecBufferGetData</a> (<code class="PARAMETER"><a href="xmlsec-buffer.html#XMLSECBUFFER"><span class="TYPE">xmlSecBufferPtr</span></a> buf</code>);
<a href="xmlsec-xmlsec.html#XMLSECSIZE"><span class="RETURNVALUE">xmlSecSize</span></a> <a href="xmlsec-buffer.html#XMLSECBUFFERGETMAXSIZE">xmlSecBufferGetMaxSize</a> (<code class="PARAMETER"><a href="xmlsec-buffer.html#XMLSECBUFFER"><span class="TYPE">xmlSecBufferPtr</span></a> buf</code>);
<a href="xmlsec-xmlsec.html#XMLSECSIZE"><span class="RETURNVALUE">xmlSecSize</span></a> <a href="xmlsec-buffer.html#XMLSECBUFFERGETSIZE">xmlSecBufferGetSize</a> (<code class="PARAMETER"><a href="xmlsec-buffer.html#XMLSECBUFFER"><span class="TYPE">xmlSecBufferPtr</span></a> buf</code>);
<gtkdoclink href="INT"><span class="RETURNVALUE">int</span></gtkdoclink><a href="xmlsec-buffer.html#XMLSECBUFFERINITIALIZE">xmlSecBufferInitialize</a> (<code class="PARAMETER"><a href="xmlsec-buffer.html#XMLSECBUFFER"><span class="TYPE">xmlSecBufferPtr</span></a> buf</code>,
<code class="PARAMETER"><a href="xmlsec-xmlsec.html#XMLSECSIZE"><span class="TYPE">xmlSecSize</span></a> size</code>);
<gtkdoclink href="INT"><span class="RETURNVALUE">int</span></gtkdoclink><a href="xmlsec-buffer.html#XMLSECBUFFERPREPEND">xmlSecBufferPrepend</a> (<code class="PARAMETER"><a href="xmlsec-buffer.html#XMLSECBUFFER"><span class="TYPE">xmlSecBufferPtr</span></a> buf</code>,
<code class="PARAMETER">const <a href="xmlsec-xmlsec.html#XMLSECBYTE"><span class="TYPE">xmlSecByte</span></a> *data</code>,
<code class="PARAMETER"><a href="xmlsec-xmlsec.html#XMLSECSIZE"><span class="TYPE">xmlSecSize</span></a> size</code>);
<gtkdoclink href="INT"><span class="RETURNVALUE">int</span></gtkdoclink><a href="xmlsec-buffer.html#XMLSECBUFFERREADFILE">xmlSecBufferReadFile</a> (<code class="PARAMETER"><a href="xmlsec-buffer.html#XMLSECBUFFER"><span class="TYPE">xmlSecBufferPtr</span></a> buf</code>,
<code class="PARAMETER">const <gtkdoclink href="CHAR"><span class="TYPE">char</span></gtkdoclink> *filename</code>);
<gtkdoclink href="INT"><span class="RETURNVALUE">int</span></gtkdoclink><a href="xmlsec-buffer.html#XMLSECBUFFERREMOVEHEAD">xmlSecBufferRemoveHead</a> (<code class="PARAMETER"><a href="xmlsec-buffer.html#XMLSECBUFFER"><span class="TYPE">xmlSecBufferPtr</span></a> buf</code>,
<code class="PARAMETER"><a href="xmlsec-xmlsec.html#XMLSECSIZE"><span class="TYPE">xmlSecSize</span></a> size</code>);
<gtkdoclink href="INT"><span class="RETURNVALUE">int</span></gtkdoclink><a href="xmlsec-buffer.html#XMLSECBUFFERREMOVETAIL">xmlSecBufferRemoveTail</a> (<code class="PARAMETER"><a href="xmlsec-buffer.html#XMLSECBUFFER"><span class="TYPE">xmlSecBufferPtr</span></a> buf</code>,
<code class="PARAMETER"><a href="xmlsec-xmlsec.html#XMLSECSIZE"><span class="TYPE">xmlSecSize</span></a> size</code>);
<gtkdoclink href="INT"><span class="RETURNVALUE">int</span></gtkdoclink><a href="xmlsec-buffer.html#XMLSECBUFFERSETDATA">xmlSecBufferSetData</a> (<code class="PARAMETER"><a href="xmlsec-buffer.html#XMLSECBUFFER"><span class="TYPE">xmlSecBufferPtr</span></a> buf</code>,
<code class="PARAMETER">const <a href="xmlsec-xmlsec.html#XMLSECBYTE"><span class="TYPE">xmlSecByte</span></a> *data</code>,
<code class="PARAMETER"><a href="xmlsec-xmlsec.html#XMLSECSIZE"><span class="TYPE">xmlSecSize</span></a> size</code>);
<gtkdoclink href="VOID"><span class="RETURNVALUE">void</span></gtkdoclink><a href="xmlsec-buffer.html#XMLSECBUFFERSETDEFAULTALLOCMODE">xmlSecBufferSetDefaultAllocMode</a> (<code class="PARAMETER"><a href="xmlsec-buffer.html#XMLSECALLOCMODE"><span class="TYPE">xmlSecAllocMode</span></a> defAllocMode</code>,
<code class="PARAMETER"><a href="xmlsec-xmlsec.html#XMLSECSIZE"><span class="TYPE">xmlSecSize</span></a> defInitialSize</code>);
<gtkdoclink href="INT"><span class="RETURNVALUE">int</span></gtkdoclink><a href="xmlsec-buffer.html#XMLSECBUFFERSETMAXSIZE">xmlSecBufferSetMaxSize</a> (<code class="PARAMETER"><a href="xmlsec-buffer.html#XMLSECBUFFER"><span class="TYPE">xmlSecBufferPtr</span></a> buf</code>,
<code class="PARAMETER"><a href="xmlsec-xmlsec.html#XMLSECSIZE"><span class="TYPE">xmlSecSize</span></a> size</code>);
<gtkdoclink href="INT"><span class="RETURNVALUE">int</span></gtkdoclink><a href="xmlsec-buffer.html#XMLSECBUFFERSETSIZE">xmlSecBufferSetSize</a> (<code class="PARAMETER"><a href="xmlsec-buffer.html#XMLSECBUFFER"><span class="TYPE">xmlSecBufferPtr</span></a> buf</code>,
<code class="PARAMETER"><a href="xmlsec-xmlsec.html#XMLSECSIZE"><span class="TYPE">xmlSecSize</span></a> size</code>);</pre>
</div>
<div class="REFSECT1">
<a name="XMLSEC-BUFFER.DESCRIPTION"></a><h2>Description</h2>
<p>Binary buffer implementation.</p>
</div>
<div class="REFSECT1">
<a name="XMLSEC-BUFFER.DETAILS"></a><h2>Details</h2>
<div class="REFSECT2">
<a name="XMLSECALLOCMODE"></a><h3>enum xmlSecAllocMode</h3>
<pre class="PROGRAMLISTING">typedef enum {
xmlSecAllocModeExact = 0,
xmlSecAllocModeDouble
} xmlSecAllocMode;</pre>
<p>The memory allocation mode (used by <code class="PARAMETER">xmlSecBuffer</code> and <code class="PARAMETER">xmlSecList</code>).</p>
<p></p>
<table class="variablelist" border="0" cellspacing="0" cellpadding="4"><tbody>
<tr>
<td align="LEFT" valign="TOP"><a name="XMLSECALLOCMODEEXACT"><span style="white-space: nowrap"><tt class="LITERAL">xmlSecAllocModeExact</tt></span></a></td>
<td align="LEFT" valign="TOP"><p>the memory allocation mode that minimizes total
allocated memory size.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="XMLSECALLOCMODEDOUBLE"><span style="white-space: nowrap"><tt class="LITERAL">xmlSecAllocModeDouble</tt></span></a></td>
<td align="LEFT" valign="TOP"><p>the memory allocation mode that tries to minimize
the number of malloc calls.</p></td>
</tr>
</tbody></table>
</div>
<hr>
<div class="REFSECT2">
<a name="XMLSECBUFFER"></a><h3>struct xmlSecBuffer</h3>
<pre class="PROGRAMLISTING">struct xmlSecBuffer {
xmlSecByte* data;
xmlSecSize size;
xmlSecSize maxSize;
xmlSecAllocMode allocMode;
};</pre>
<p>Binary data buffer.</p>
<p></p>
<table class="variablelist" border="0" cellspacing="0" cellpadding="4"><tbody>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN4772"><span style="white-space: nowrap"><a href="xmlsec-xmlsec.html#XMLSECBYTE"><span class="TYPE">xmlSecByte</span></a> *<code class="STRUCTFIELD">data</code>;</span></a></td>
<td align="LEFT" valign="TOP"><p>the pointer to buffer data.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN4779"><span style="white-space: nowrap"><a href="xmlsec-xmlsec.html#XMLSECSIZE"><span class="TYPE">xmlSecSize</span></a> <code class="STRUCTFIELD">size</code>;</span></a></td>
<td align="LEFT" valign="TOP"><p>the current data size.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN4786"><span style="white-space: nowrap"><a href="xmlsec-xmlsec.html#XMLSECSIZE"><span class="TYPE">xmlSecSize</span></a> <code class="STRUCTFIELD">maxSize</code>;</span></a></td>
<td align="LEFT" valign="TOP"><p>the max data size (allocated buffer size).</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN4793"><span style="white-space: nowrap"><a href="xmlsec-buffer.html#XMLSECALLOCMODE"><span class="TYPE">xmlSecAllocMode</span></a> <code class="STRUCTFIELD">allocMode</code>;</span></a></td>
<td align="LEFT" valign="TOP"><p>the buffer memory allocation mode.</p></td>
</tr>
</tbody></table>
</div>
<hr>
<div class="REFSECT2">
<a name="XMLSECBUFFERAPPEND"></a><h3>xmlSecBufferAppend ()</h3>
<pre class="PROGRAMLISTING"><gtkdoclink href="INT"><span class="RETURNVALUE">int</span></gtkdoclink> xmlSecBufferAppend (<code class="PARAMETER"><a href="xmlsec-buffer.html#XMLSECBUFFER"><span class="TYPE">xmlSecBufferPtr</span></a> buf</code>,
<code class="PARAMETER">const <a href="xmlsec-xmlsec.html#XMLSECBYTE"><span class="TYPE">xmlSecByte</span></a> *data</code>,
<code class="PARAMETER"><a href="xmlsec-xmlsec.html#XMLSECSIZE"><span class="TYPE">xmlSecSize</span></a> size</code>);</pre>
<p>Appends the <code class="PARAMETER">data</code> after the current data stored in the buffer.</p>
<p></p>
<table class="variablelist" border="0" cellspacing="0" cellpadding="4"><tbody>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN4819"><span style="white-space: nowrap"><code class="PARAMETER">buf</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the pointer to buffer object.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN4824"><span style="white-space: nowrap"><code class="PARAMETER">data</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the data.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN4829"><span style="white-space: nowrap"><code class="PARAMETER">size</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the data size.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN4834"><span style="white-space: nowrap"><span class="emphasis"><i class="EMPHASIS">Returns</i></span> :</span></a></td>
<td align="LEFT" valign="TOP"><p>0 on success or a negative value if an error occurs.</p></td>
</tr>
</tbody></table>
</div>
<hr>
<div class="REFSECT2">
<a name="XMLSECBUFFERBASE64NODECONTENTREAD"></a><h3>xmlSecBufferBase64NodeContentRead ()</h3>
<pre class="PROGRAMLISTING"><gtkdoclink href="INT"><span class="RETURNVALUE">int</span></gtkdoclink> xmlSecBufferBase64NodeContentRead (<code class="PARAMETER"><a href="xmlsec-buffer.html#XMLSECBUFFER"><span class="TYPE">xmlSecBufferPtr</span></a> buf</code>,
<code class="PARAMETER"><gtkdoclink href="XMLNODE"><span class="TYPE">xmlNodePtr</span></gtkdoclink> node</code>);</pre>
<p>Reads the content of the <code class="PARAMETER">node</code>, base64 decodes it and stores the
result in the buffer.</p>
<p></p>
<table class="variablelist" border="0" cellspacing="0" cellpadding="4"><tbody>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN4855"><span style="white-space: nowrap"><code class="PARAMETER">buf</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the pointer to buffer object.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN4860"><span style="white-space: nowrap"><code class="PARAMETER">node</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the pointer to node.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN4865"><span style="white-space: nowrap"><span class="emphasis"><i class="EMPHASIS">Returns</i></span> :</span></a></td>
<td align="LEFT" valign="TOP"><p>0 on success or a negative value if an error occurs.</p></td>
</tr>
</tbody></table>
</div>
<hr>
<div class="REFSECT2">
<a name="XMLSECBUFFERBASE64NODECONTENTWRITE"></a><h3>xmlSecBufferBase64NodeContentWrite ()</h3>
<pre class="PROGRAMLISTING"><gtkdoclink href="INT"><span class="RETURNVALUE">int</span></gtkdoclink> xmlSecBufferBase64NodeContentWrite (<code class="PARAMETER"><a href="xmlsec-buffer.html#XMLSECBUFFER"><span class="TYPE">xmlSecBufferPtr</span></a> buf</code>,
<code class="PARAMETER"><gtkdoclink href="XMLNODE"><span class="TYPE">xmlNodePtr</span></gtkdoclink> node</code>,
<code class="PARAMETER"><gtkdoclink href="INT"><span class="TYPE">int</span></gtkdoclink> columns</code>);</pre>
<p>Sets the content of the <code class="PARAMETER">node</code> to the base64 encoded buffer data.</p>
<p></p>
<table class="variablelist" border="0" cellspacing="0" cellpadding="4"><tbody>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN4889"><span style="white-space: nowrap"><code class="PARAMETER">buf</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the pointer to buffer object.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN4894"><span style="white-space: nowrap"><code class="PARAMETER">node</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the pointer to a node.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN4899"><span style="white-space: nowrap"><code class="PARAMETER">columns</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the max line size fro base64 encoded data.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN4904"><span style="white-space: nowrap"><span class="emphasis"><i class="EMPHASIS">Returns</i></span> :</span></a></td>
<td align="LEFT" valign="TOP"><p>0 on success or a negative value if an error occurs.</p></td>
</tr>
</tbody></table>
</div>
<hr>
<div class="REFSECT2">
<a name="XMLSECBUFFERCREATE"></a><h3>xmlSecBufferCreate ()</h3>
<pre class="PROGRAMLISTING"><a href="xmlsec-buffer.html#XMLSECBUFFER"><span class="RETURNVALUE">xmlSecBufferPtr</span></a> xmlSecBufferCreate (<code class="PARAMETER"><a href="xmlsec-xmlsec.html#XMLSECSIZE"><span class="TYPE">xmlSecSize</span></a> size</code>);</pre>
<p>Allocates and initalizes new memory buffer with given size.
Caller is responsible for calling <a href="xmlsec-buffer.html#XMLSECBUFFERDESTROY"><span class="TYPE">xmlSecBufferDestroy</span></a> function
to free the buffer.</p>
<p></p>
<table class="variablelist" border="0" cellspacing="0" cellpadding="4"><tbody>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN4923"><span style="white-space: nowrap"><code class="PARAMETER">size</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the intial size.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN4928"><span style="white-space: nowrap"><span class="emphasis"><i class="EMPHASIS">Returns</i></span> :</span></a></td>
<td align="LEFT" valign="TOP"><p>pointer to newly allocated buffer or NULL if an error occurs.</p></td>
</tr>
</tbody></table>
</div>
<hr>
<div class="REFSECT2">
<a name="XMLSECBUFFERCREATEOUTPUTBUFFER"></a><h3>xmlSecBufferCreateOutputBuffer ()</h3>
<pre class="PROGRAMLISTING"><gtkdoclink href="XMLOUTPUTBUFFERPTR"><span class="RETURNVALUE">xmlOutputBufferPtr</span></gtkdoclink> xmlSecBufferCreateOutputBuffer (<code class="PARAMETER"><a href="xmlsec-buffer.html#XMLSECBUFFER"><span class="TYPE">xmlSecBufferPtr</span></a> buf</code>);</pre>
<p>Creates new LibXML output buffer to store data in the <code class="PARAMETER">buf</code>. Caller is
responsible for destroying <code class="PARAMETER">buf</code> when processing is done.</p>
<p></p>
<table class="variablelist" border="0" cellspacing="0" cellpadding="4"><tbody>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN4947"><span style="white-space: nowrap"><code class="PARAMETER">buf</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the pointer to buffer.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN4952"><span style="white-space: nowrap"><span class="emphasis"><i class="EMPHASIS">Returns</i></span> :</span></a></td>
<td align="LEFT" valign="TOP"><p>pointer to newly allocated output buffer or NULL if an error
occurs.</p></td>
</tr>
</tbody></table>
</div>
<hr>
<div class="REFSECT2">
<a name="XMLSECBUFFERDESTROY"></a><h3>xmlSecBufferDestroy ()</h3>
<pre class="PROGRAMLISTING"><gtkdoclink href="VOID"><span class="RETURNVALUE">void</span></gtkdoclink> xmlSecBufferDestroy (<code class="PARAMETER"><a href="xmlsec-buffer.html#XMLSECBUFFER"><span class="TYPE">xmlSecBufferPtr</span></a> buf</code>);</pre>
<p>Desrtoys buffer object created with <a href="xmlsec-buffer.html#XMLSECBUFFERCREATE"><span class="TYPE">xmlSecBufferCreate</span></a> function.</p>
<p></p>
<table class="variablelist" border="0" cellspacing="0" cellpadding="4"><tbody><tr>
<td align="LEFT" valign="TOP"><a name="AEN4971"><span style="white-space: nowrap"><code class="PARAMETER">buf</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the pointer to buffer object.</p></td>
</tr></tbody></table>
</div>
<hr>
<div class="REFSECT2">
<a name="XMLSECBUFFEREMPTY"></a><h3>xmlSecBufferEmpty ()</h3>
<pre class="PROGRAMLISTING"><gtkdoclink href="VOID"><span class="RETURNVALUE">void</span></gtkdoclink> xmlSecBufferEmpty (<code class="PARAMETER"><a href="xmlsec-buffer.html#XMLSECBUFFER"><span class="TYPE">xmlSecBufferPtr</span></a> buf</code>);</pre>
<p>Empties the buffer.</p>
<p></p>
<table class="variablelist" border="0" cellspacing="0" cellpadding="4"><tbody><tr>
<td align="LEFT" valign="TOP"><a name="AEN4988"><span style="white-space: nowrap"><code class="PARAMETER">buf</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the pointer to buffer object.</p></td>
</tr></tbody></table>
</div>
<hr>
<div class="REFSECT2">
<a name="XMLSECBUFFERFINALIZE"></a><h3>xmlSecBufferFinalize ()</h3>
<pre class="PROGRAMLISTING"><gtkdoclink href="VOID"><span class="RETURNVALUE">void</span></gtkdoclink> xmlSecBufferFinalize (<code class="PARAMETER"><a href="xmlsec-buffer.html#XMLSECBUFFER"><span class="TYPE">xmlSecBufferPtr</span></a> buf</code>);</pre>
<p>Frees allocated resource for a buffer intialized with <a href="xmlsec-buffer.html#XMLSECBUFFERINITIALIZE"><span class="TYPE">xmlSecBufferInitialize</span></a>
function.</p>
<p></p>
<table class="variablelist" border="0" cellspacing="0" cellpadding="4"><tbody><tr>
<td align="LEFT" valign="TOP"><a name="AEN5007"><span style="white-space: nowrap"><code class="PARAMETER">buf</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the pointer to buffer object.</p></td>
</tr></tbody></table>
</div>
<hr>
<div class="REFSECT2">
<a name="XMLSECBUFFERGETDATA"></a><h3>xmlSecBufferGetData ()</h3>
<pre class="PROGRAMLISTING"><a href="xmlsec-xmlsec.html#XMLSECBYTE"><span class="RETURNVALUE">xmlSecByte</span></a> * xmlSecBufferGetData (<code class="PARAMETER"><a href="xmlsec-buffer.html#XMLSECBUFFER"><span class="TYPE">xmlSecBufferPtr</span></a> buf</code>);</pre>
<p>Gets pointer to buffer's data.</p>
<p></p>
<table class="variablelist" border="0" cellspacing="0" cellpadding="4"><tbody>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN5024"><span style="white-space: nowrap"><code class="PARAMETER">buf</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the pointer to buffer object.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN5029"><span style="white-space: nowrap"><span class="emphasis"><i class="EMPHASIS">Returns</i></span> :</span></a></td>
<td align="LEFT" valign="TOP"><p>pointer to buffer's data.</p></td>
</tr>
</tbody></table>
</div>
<hr>
<div class="REFSECT2">
<a name="XMLSECBUFFERGETMAXSIZE"></a><h3>xmlSecBufferGetMaxSize ()</h3>
<pre class="PROGRAMLISTING"><a href="xmlsec-xmlsec.html#XMLSECSIZE"><span class="RETURNVALUE">xmlSecSize</span></a> xmlSecBufferGetMaxSize (<code class="PARAMETER"><a href="xmlsec-buffer.html#XMLSECBUFFER"><span class="TYPE">xmlSecBufferPtr</span></a> buf</code>);</pre>
<p>Gets the maximum (allocated) buffer size.</p>
<p></p>
<table class="variablelist" border="0" cellspacing="0" cellpadding="4"><tbody>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN5046"><span style="white-space: nowrap"><code class="PARAMETER">buf</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the pointer to buffer object.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN5051"><span style="white-space: nowrap"><span class="emphasis"><i class="EMPHASIS">Returns</i></span> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the maximum (allocated) buffer size.</p></td>
</tr>
</tbody></table>
</div>
<hr>
<div class="REFSECT2">
<a name="XMLSECBUFFERGETSIZE"></a><h3>xmlSecBufferGetSize ()</h3>
<pre class="PROGRAMLISTING"><a href="xmlsec-xmlsec.html#XMLSECSIZE"><span class="RETURNVALUE">xmlSecSize</span></a> xmlSecBufferGetSize (<code class="PARAMETER"><a href="xmlsec-buffer.html#XMLSECBUFFER"><span class="TYPE">xmlSecBufferPtr</span></a> buf</code>);</pre>
<p>Gets the current buffer data size.</p>
<p></p>
<table class="variablelist" border="0" cellspacing="0" cellpadding="4"><tbody>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN5068"><span style="white-space: nowrap"><code class="PARAMETER">buf</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the pointer to buffer object.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN5073"><span style="white-space: nowrap"><span class="emphasis"><i class="EMPHASIS">Returns</i></span> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the current data size.</p></td>
</tr>
</tbody></table>
</div>
<hr>
<div class="REFSECT2">
<a name="XMLSECBUFFERINITIALIZE"></a><h3>xmlSecBufferInitialize ()</h3>
<pre class="PROGRAMLISTING"><gtkdoclink href="INT"><span class="RETURNVALUE">int</span></gtkdoclink> xmlSecBufferInitialize (<code class="PARAMETER"><a href="xmlsec-buffer.html#XMLSECBUFFER"><span class="TYPE">xmlSecBufferPtr</span></a> buf</code>,
<code class="PARAMETER"><a href="xmlsec-xmlsec.html#XMLSECSIZE"><span class="TYPE">xmlSecSize</span></a> size</code>);</pre>
<p>Initializes buffer object <code class="PARAMETER">buf</code>. Caller is responsible for calling
<a href="xmlsec-buffer.html#XMLSECBUFFERFINALIZE"><span class="TYPE">xmlSecBufferFinalize</span></a> function to free allocated resources.</p>
<p></p>
<table class="variablelist" border="0" cellspacing="0" cellpadding="4"><tbody>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN5096"><span style="white-space: nowrap"><code class="PARAMETER">buf</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the pointer to buffer object.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN5101"><span style="white-space: nowrap"><code class="PARAMETER">size</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the initial buffer size.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN5106"><span style="white-space: nowrap"><span class="emphasis"><i class="EMPHASIS">Returns</i></span> :</span></a></td>
<td align="LEFT" valign="TOP"><p>0 on success or a negative value if an error occurs.</p></td>
</tr>
</tbody></table>
</div>
<hr>
<div class="REFSECT2">
<a name="XMLSECBUFFERPREPEND"></a><h3>xmlSecBufferPrepend ()</h3>
<pre class="PROGRAMLISTING"><gtkdoclink href="INT"><span class="RETURNVALUE">int</span></gtkdoclink> xmlSecBufferPrepend (<code class="PARAMETER"><a href="xmlsec-buffer.html#XMLSECBUFFER"><span class="TYPE">xmlSecBufferPtr</span></a> buf</code>,
<code class="PARAMETER">const <a href="xmlsec-xmlsec.html#XMLSECBYTE"><span class="TYPE">xmlSecByte</span></a> *data</code>,
<code class="PARAMETER"><a href="xmlsec-xmlsec.html#XMLSECSIZE"><span class="TYPE">xmlSecSize</span></a> size</code>);</pre>
<p>Prepends the <code class="PARAMETER">data</code> before the current data stored in the buffer.</p>
<p></p>
<table class="variablelist" border="0" cellspacing="0" cellpadding="4"><tbody>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN5130"><span style="white-space: nowrap"><code class="PARAMETER">buf</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the pointer to buffer object.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN5135"><span style="white-space: nowrap"><code class="PARAMETER">data</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the data.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN5140"><span style="white-space: nowrap"><code class="PARAMETER">size</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the data size.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN5145"><span style="white-space: nowrap"><span class="emphasis"><i class="EMPHASIS">Returns</i></span> :</span></a></td>
<td align="LEFT" valign="TOP"><p>0 on success or a negative value if an error occurs.</p></td>
</tr>
</tbody></table>
</div>
<hr>
<div class="REFSECT2">
<a name="XMLSECBUFFERREADFILE"></a><h3>xmlSecBufferReadFile ()</h3>
<pre class="PROGRAMLISTING"><gtkdoclink href="INT"><span class="RETURNVALUE">int</span></gtkdoclink> xmlSecBufferReadFile (<code class="PARAMETER"><a href="xmlsec-buffer.html#XMLSECBUFFER"><span class="TYPE">xmlSecBufferPtr</span></a> buf</code>,
<code class="PARAMETER">const <gtkdoclink href="CHAR"><span class="TYPE">char</span></gtkdoclink> *filename</code>);</pre>
<p>Reads the content of the file <code class="PARAMETER">filename</code> in the buffer.</p>
<p></p>
<table class="variablelist" border="0" cellspacing="0" cellpadding="4"><tbody>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN5166"><span style="white-space: nowrap"><code class="PARAMETER">buf</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the pointer to buffer object.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN5171"><span style="white-space: nowrap"><code class="PARAMETER">filename</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the filename.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN5176"><span style="white-space: nowrap"><span class="emphasis"><i class="EMPHASIS">Returns</i></span> :</span></a></td>
<td align="LEFT" valign="TOP"><p>0 on success or a negative value if an error occurs.</p></td>
</tr>
</tbody></table>
</div>
<hr>
<div class="REFSECT2">
<a name="XMLSECBUFFERREMOVEHEAD"></a><h3>xmlSecBufferRemoveHead ()</h3>
<pre class="PROGRAMLISTING"><gtkdoclink href="INT"><span class="RETURNVALUE">int</span></gtkdoclink> xmlSecBufferRemoveHead (<code class="PARAMETER"><a href="xmlsec-buffer.html#XMLSECBUFFER"><span class="TYPE">xmlSecBufferPtr</span></a> buf</code>,
<code class="PARAMETER"><a href="xmlsec-xmlsec.html#XMLSECSIZE"><span class="TYPE">xmlSecSize</span></a> size</code>);</pre>
<p>Removes <code class="PARAMETER">size</code> bytes from the beginning of the current buffer.</p>
<p></p>
<table class="variablelist" border="0" cellspacing="0" cellpadding="4"><tbody>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN5197"><span style="white-space: nowrap"><code class="PARAMETER">buf</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the pointer to buffer object.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN5202"><span style="white-space: nowrap"><code class="PARAMETER">size</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the number of bytes to be removed.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN5207"><span style="white-space: nowrap"><span class="emphasis"><i class="EMPHASIS">Returns</i></span> :</span></a></td>
<td align="LEFT" valign="TOP"><p>0 on success or a negative value if an error occurs.</p></td>
</tr>
</tbody></table>
</div>
<hr>
<div class="REFSECT2">
<a name="XMLSECBUFFERREMOVETAIL"></a><h3>xmlSecBufferRemoveTail ()</h3>
<pre class="PROGRAMLISTING"><gtkdoclink href="INT"><span class="RETURNVALUE">int</span></gtkdoclink> xmlSecBufferRemoveTail (<code class="PARAMETER"><a href="xmlsec-buffer.html#XMLSECBUFFER"><span class="TYPE">xmlSecBufferPtr</span></a> buf</code>,
<code class="PARAMETER"><a href="xmlsec-xmlsec.html#XMLSECSIZE"><span class="TYPE">xmlSecSize</span></a> size</code>);</pre>
<p>Removes <code class="PARAMETER">size</code> bytes from the end of current buffer.</p>
<p></p>
<table class="variablelist" border="0" cellspacing="0" cellpadding="4"><tbody>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN5228"><span style="white-space: nowrap"><code class="PARAMETER">buf</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the pointer to buffer object.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN5233"><span style="white-space: nowrap"><code class="PARAMETER">size</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the number of bytes to be removed.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN5238"><span style="white-space: nowrap"><span class="emphasis"><i class="EMPHASIS">Returns</i></span> :</span></a></td>
<td align="LEFT" valign="TOP"><p>0 on success or a negative value if an error occurs.</p></td>
</tr>
</tbody></table>
</div>
<hr>
<div class="REFSECT2">
<a name="XMLSECBUFFERSETDATA"></a><h3>xmlSecBufferSetData ()</h3>
<pre class="PROGRAMLISTING"><gtkdoclink href="INT"><span class="RETURNVALUE">int</span></gtkdoclink> xmlSecBufferSetData (<code class="PARAMETER"><a href="xmlsec-buffer.html#XMLSECBUFFER"><span class="TYPE">xmlSecBufferPtr</span></a> buf</code>,
<code class="PARAMETER">const <a href="xmlsec-xmlsec.html#XMLSECBYTE"><span class="TYPE">xmlSecByte</span></a> *data</code>,
<code class="PARAMETER"><a href="xmlsec-xmlsec.html#XMLSECSIZE"><span class="TYPE">xmlSecSize</span></a> size</code>);</pre>
<p>Sets the value of the buffer to <code class="PARAMETER">data</code>.</p>
<p></p>
<table class="variablelist" border="0" cellspacing="0" cellpadding="4"><tbody>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN5262"><span style="white-space: nowrap"><code class="PARAMETER">buf</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the pointer to buffer object.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN5267"><span style="white-space: nowrap"><code class="PARAMETER">data</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the data.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN5272"><span style="white-space: nowrap"><code class="PARAMETER">size</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the data size.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN5277"><span style="white-space: nowrap"><span class="emphasis"><i class="EMPHASIS">Returns</i></span> :</span></a></td>
<td align="LEFT" valign="TOP"><p>0 on success or a negative value if an error occurs.</p></td>
</tr>
</tbody></table>
</div>
<hr>
<div class="REFSECT2">
<a name="XMLSECBUFFERSETDEFAULTALLOCMODE"></a><h3>xmlSecBufferSetDefaultAllocMode ()</h3>
<pre class="PROGRAMLISTING"><gtkdoclink href="VOID"><span class="RETURNVALUE">void</span></gtkdoclink> xmlSecBufferSetDefaultAllocMode (<code class="PARAMETER"><a href="xmlsec-buffer.html#XMLSECALLOCMODE"><span class="TYPE">xmlSecAllocMode</span></a> defAllocMode</code>,
<code class="PARAMETER"><a href="xmlsec-xmlsec.html#XMLSECSIZE"><span class="TYPE">xmlSecSize</span></a> defInitialSize</code>);</pre>
<p>Sets new global default allocation mode and minimal intial size.</p>
<p></p>
<table class="variablelist" border="0" cellspacing="0" cellpadding="4"><tbody>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN5297"><span style="white-space: nowrap"><code class="PARAMETER">defAllocMode</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the new default buffer allocation mode.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN5302"><span style="white-space: nowrap"><code class="PARAMETER">defInitialSize</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the new default buffer minimal intial size.</p></td>
</tr>
</tbody></table>
</div>
<hr>
<div class="REFSECT2">
<a name="XMLSECBUFFERSETMAXSIZE"></a><h3>xmlSecBufferSetMaxSize ()</h3>
<pre class="PROGRAMLISTING"><gtkdoclink href="INT"><span class="RETURNVALUE">int</span></gtkdoclink> xmlSecBufferSetMaxSize (<code class="PARAMETER"><a href="xmlsec-buffer.html#XMLSECBUFFER"><span class="TYPE">xmlSecBufferPtr</span></a> buf</code>,
<code class="PARAMETER"><a href="xmlsec-xmlsec.html#XMLSECSIZE"><span class="TYPE">xmlSecSize</span></a> size</code>);</pre>
<p>Sets new buffer maximum size. If necessary, buffer grows to
have at least <code class="PARAMETER">size</code> bytes.</p>
<p></p>
<table class="variablelist" border="0" cellspacing="0" cellpadding="4"><tbody>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN5323"><span style="white-space: nowrap"><code class="PARAMETER">buf</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the pointer to buffer object.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN5328"><span style="white-space: nowrap"><code class="PARAMETER">size</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the new maximum size.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN5333"><span style="white-space: nowrap"><span class="emphasis"><i class="EMPHASIS">Returns</i></span> :</span></a></td>
<td align="LEFT" valign="TOP"><p>0 on success or a negative value if an error occurs.</p></td>
</tr>
</tbody></table>
</div>
<hr>
<div class="REFSECT2">
<a name="XMLSECBUFFERSETSIZE"></a><h3>xmlSecBufferSetSize ()</h3>
<pre class="PROGRAMLISTING"><gtkdoclink href="INT"><span class="RETURNVALUE">int</span></gtkdoclink> xmlSecBufferSetSize (<code class="PARAMETER"><a href="xmlsec-buffer.html#XMLSECBUFFER"><span class="TYPE">xmlSecBufferPtr</span></a> buf</code>,
<code class="PARAMETER"><a href="xmlsec-xmlsec.html#XMLSECSIZE"><span class="TYPE">xmlSecSize</span></a> size</code>);</pre>
<p>Sets new buffer data size. If necessary, buffer grows to
have at least <code class="PARAMETER">size</code> bytes.</p>
<p></p>
<table class="variablelist" border="0" cellspacing="0" cellpadding="4"><tbody>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN5354"><span style="white-space: nowrap"><code class="PARAMETER">buf</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the pointer to buffer object.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN5359"><span style="white-space: nowrap"><code class="PARAMETER">size</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the new data size.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN5364"><span style="white-space: nowrap"><span class="emphasis"><i class="EMPHASIS">Returns</i></span> :</span></a></td>
<td align="LEFT" valign="TOP"><p>0 on success or a negative value if an error occurs.</p></td>
</tr>
</tbody></table>
</div>
</div>
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