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<h1>
<a name="XMLSEC-BASE64"></a>base64</h1>
<div class="REFNAMEDIV">
<a name="AEN1934"></a><h2>Name</h2>base64 -- </div>
<div class="REFSYNOPSISDIV">
<a name="AEN1937"></a><h2>Synopsis</h2>
<pre class="SYNOPSIS">
#define <a href="xmlsec-base64.html#XMLSEC-BASE64-LINESIZE-CAPS">XMLSEC_BASE64_LINESIZE</a>
<font>xmlSecBase64CtxPtr</font> <a href="xmlsec-base64.html#XMLSECBASE64CTXCREATE">xmlSecBase64CtxCreate</a> (<font>int</font> encode,
<font>int</font> columns);
<font>void</font> <a href="xmlsec-base64.html#XMLSECBASE64CTXDESTROY">xmlSecBase64CtxDestroy</a> (<font>xmlSecBase64CtxPtr</font> ctx);
<font>int</font> <a href="xmlsec-base64.html#XMLSECBASE64CTXINITIALIZE">xmlSecBase64CtxInitialize</a> (<font>xmlSecBase64CtxPtr</font> ctx,
<font>int</font> encode,
<font>int</font> columns);
<font>void</font> <a href="xmlsec-base64.html#XMLSECBASE64CTXFINALIZE">xmlSecBase64CtxFinalize</a> (<font>xmlSecBase64CtxPtr</font> ctx);
<font>int</font> <a href="xmlsec-base64.html#XMLSECBASE64CTXUPDATE">xmlSecBase64CtxUpdate</a> (<font>xmlSecBase64CtxPtr</font> ctx,
const <a href="xmlsec-xmlsec.html#XMLSECBYTE">xmlSecByte</a> *in,
<a href="xmlsec-xmlsec.html#XMLSECSIZE">xmlSecSize</a> inSize,
<a href="xmlsec-xmlsec.html#XMLSECBYTE">xmlSecByte</a> *out,
<a href="xmlsec-xmlsec.html#XMLSECSIZE">xmlSecSize</a> outSize);
<font>int</font> <a href="xmlsec-base64.html#XMLSECBASE64CTXFINAL">xmlSecBase64CtxFinal</a> (<font>xmlSecBase64CtxPtr</font> ctx,
<a href="xmlsec-xmlsec.html#XMLSECBYTE">xmlSecByte</a> *out,
<a href="xmlsec-xmlsec.html#XMLSECSIZE">xmlSecSize</a> outSize);
<font>xmlChar</font>* <a href="xmlsec-base64.html#XMLSECBASE64ENCODE">xmlSecBase64Encode</a> (const <a href="xmlsec-xmlsec.html#XMLSECBYTE">xmlSecByte</a> *buf,
<a href="xmlsec-xmlsec.html#XMLSECSIZE">xmlSecSize</a> len,
<font>int</font> columns);
<font>int</font> <a href="xmlsec-base64.html#XMLSECBASE64DECODE">xmlSecBase64Decode</a> (const <font>xmlChar</font> *str,
<a href="xmlsec-xmlsec.html#XMLSECBYTE">xmlSecByte</a> *buf,
<a href="xmlsec-xmlsec.html#XMLSECSIZE">xmlSecSize</a> len);</pre>
</div>
<div class="REFSECT1">
<a name="AEN1978"></a><h2>Description</h2>
<p></p>
</div>
<div class="REFSECT1">
<a name="AEN1981"></a><h2>Details</h2>
<div class="REFSECT2">
<a name="AEN1983"></a><h3>
<a name="XMLSEC-BASE64-LINESIZE-CAPS"></a>XMLSEC_BASE64_LINESIZE</h3>
<pre class="PROGRAMLISTING">#define XMLSEC_BASE64_LINESIZE 64</pre>
<p>The default maximum base64 encoded line size.</p>
<p></p>
</div>
<hr>
<div class="REFSECT2">
<a name="AEN1991"></a><h3>
<a name="XMLSECBASE64CTXCREATE"></a>xmlSecBase64CtxCreate ()</h3>
<pre class="PROGRAMLISTING"><font>xmlSecBase64CtxPtr</font> xmlSecBase64CtxCreate (<font>int</font> encode,
<font>int</font> columns);</pre>
<p>Allocates and initializes new base64 context.</p>
<p></p>
<p></p>
<table class="variablelist" border="0" cellspacing="0" cellpadding="4"><tbody>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN2003"><span style="white-space: nowrap"><var class="PARAMETER">encode</var> :</span></a></td>
<td align="LEFT" valign="TOP"><p> the encode/decode flag (1 - encode, 0 - decode) </p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN2008"><span style="white-space: nowrap"><var class="PARAMETER">columns</var> :</span></a></td>
<td align="LEFT" valign="TOP"><p> the max line length.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN2013"><span style="white-space: nowrap"><span class="emphasis"><i class="EMPHASIS">Returns</i></span> :</span></a></td>
<td align="LEFT" valign="TOP"><p>a pointer to newly created <font><span class="TYPE">xmlSecBase64Ctx</span></font> structure
or NULL if an error occurs.</p></td>
</tr>
</tbody></table>
</div>
<hr>
<div class="REFSECT2">
<a name="AEN2020"></a><h3>
<a name="XMLSECBASE64CTXDESTROY"></a>xmlSecBase64CtxDestroy ()</h3>
<pre class="PROGRAMLISTING"><font>void</font> xmlSecBase64CtxDestroy (<font>xmlSecBase64CtxPtr</font> ctx);</pre>
<p>Destroys base64 context.</p>
<p></p>
<p></p>
<table class="variablelist" border="0" cellspacing="0" cellpadding="4"><tbody><tr>
<td align="LEFT" valign="TOP"><a name="AEN2031"><span style="white-space: nowrap"><var class="PARAMETER">ctx</var> :</span></a></td>
<td align="LEFT" valign="TOP"><p> the pointer to <font><span class="TYPE">xmlSecBase64Ctx</span></font> structure.</p></td>
</tr></tbody></table>
</div>
<hr>
<div class="REFSECT2">
<a name="AEN2038"></a><h3>
<a name="XMLSECBASE64CTXINITIALIZE"></a>xmlSecBase64CtxInitialize ()</h3>
<pre class="PROGRAMLISTING"><font>int</font> xmlSecBase64CtxInitialize (<font>xmlSecBase64CtxPtr</font> ctx,
<font>int</font> encode,
<font>int</font> columns);</pre>
<p>Initializes new base64 context.</p>
<p></p>
<p></p>
<table class="variablelist" border="0" cellspacing="0" cellpadding="4"><tbody>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN2051"><span style="white-space: nowrap"><var class="PARAMETER">ctx</var> :</span></a></td>
<td align="LEFT" valign="TOP"><p> the pointer to <font><span class="TYPE">xmlSecBase64Ctx</span></font> structure,</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN2058"><span style="white-space: nowrap"><var class="PARAMETER">encode</var> :</span></a></td>
<td align="LEFT" valign="TOP"><p> the encode/decode flag (1 - encode, 0 - decode) </p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN2063"><span style="white-space: nowrap"><var class="PARAMETER">columns</var> :</span></a></td>
<td align="LEFT" valign="TOP"><p> the max line length.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN2068"><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 and a negative value otherwise.</p></td>
</tr>
</tbody></table>
</div>
<hr>
<div class="REFSECT2">
<a name="AEN2073"></a><h3>
<a name="XMLSECBASE64CTXFINALIZE"></a>xmlSecBase64CtxFinalize ()</h3>
<pre class="PROGRAMLISTING"><font>void</font> xmlSecBase64CtxFinalize (<font>xmlSecBase64CtxPtr</font> ctx);</pre>
<p>Frees all the resources allocated by <var class="PARAMETER">ctx</var>.</p>
<p></p>
<p></p>
<table class="variablelist" border="0" cellspacing="0" cellpadding="4"><tbody><tr>
<td align="LEFT" valign="TOP"><a name="AEN2085"><span style="white-space: nowrap"><var class="PARAMETER">ctx</var> :</span></a></td>
<td align="LEFT" valign="TOP"><p> the pointer to <font><span class="TYPE">xmlSecBase64Ctx</span></font> structure,</p></td>
</tr></tbody></table>
</div>
<hr>
<div class="REFSECT2">
<a name="AEN2092"></a><h3>
<a name="XMLSECBASE64CTXUPDATE"></a>xmlSecBase64CtxUpdate ()</h3>
<pre class="PROGRAMLISTING"><font>int</font> xmlSecBase64CtxUpdate (<font>xmlSecBase64CtxPtr</font> ctx,
const <a href="xmlsec-xmlsec.html#XMLSECBYTE">xmlSecByte</a> *in,
<a href="xmlsec-xmlsec.html#XMLSECSIZE">xmlSecSize</a> inSize,
<a href="xmlsec-xmlsec.html#XMLSECBYTE">xmlSecByte</a> *out,
<a href="xmlsec-xmlsec.html#XMLSECSIZE">xmlSecSize</a> outSize);</pre>
<p>Encodes or decodes the next piece of data from input buffer.</p>
<p></p>
<p></p>
<table class="variablelist" border="0" cellspacing="0" cellpadding="4"><tbody>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN2107"><span style="white-space: nowrap"><var class="PARAMETER">ctx</var> :</span></a></td>
<td align="LEFT" valign="TOP"><p> the pointer to <font><span class="TYPE">xmlSecBase64Ctx</span></font> structure</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN2114"><span style="white-space: nowrap"><var class="PARAMETER">in</var> :</span></a></td>
<td align="LEFT" valign="TOP"><p> the input buffer</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN2119"><span style="white-space: nowrap"><var class="PARAMETER">inSize</var> :</span></a></td>
<td align="LEFT" valign="TOP"><p> the input buffer size</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN2124"><span style="white-space: nowrap"><var class="PARAMETER">out</var> :</span></a></td>
<td align="LEFT" valign="TOP"><p> the output buffer</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN2129"><span style="white-space: nowrap"><var class="PARAMETER">outSize</var> :</span></a></td>
<td align="LEFT" valign="TOP"><p> the output buffer size</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN2134"><span style="white-space: nowrap"><span class="emphasis"><i class="EMPHASIS">Returns</i></span> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the number of bytes written to output buffer or
-1 if an error occurs.</p></td>
</tr>
</tbody></table>
</div>
<hr>
<div class="REFSECT2">
<a name="AEN2139"></a><h3>
<a name="XMLSECBASE64CTXFINAL"></a>xmlSecBase64CtxFinal ()</h3>
<pre class="PROGRAMLISTING"><font>int</font> xmlSecBase64CtxFinal (<font>xmlSecBase64CtxPtr</font> ctx,
<a href="xmlsec-xmlsec.html#XMLSECBYTE">xmlSecByte</a> *out,
<a href="xmlsec-xmlsec.html#XMLSECSIZE">xmlSecSize</a> outSize);</pre>
<p>Encodes or decodes the last piece of data stored in the context
and finalizes the result.</p>
<p></p>
<p></p>
<table class="variablelist" border="0" cellspacing="0" cellpadding="4"><tbody>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN2152"><span style="white-space: nowrap"><var class="PARAMETER">ctx</var> :</span></a></td>
<td align="LEFT" valign="TOP"><p> the pointer to <font><span class="TYPE">xmlSecBase64Ctx</span></font> structure</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN2159"><span style="white-space: nowrap"><var class="PARAMETER">out</var> :</span></a></td>
<td align="LEFT" valign="TOP"><p> the output buffer</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN2164"><span style="white-space: nowrap"><var class="PARAMETER">outSize</var> :</span></a></td>
<td align="LEFT" valign="TOP"><p> the output buffer size</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN2169"><span style="white-space: nowrap"><span class="emphasis"><i class="EMPHASIS">Returns</i></span> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the number of bytes written to output buffer or
-1 if an error occurs.</p></td>
</tr>
</tbody></table>
</div>
<hr>
<div class="REFSECT2">
<a name="AEN2174"></a><h3>
<a name="XMLSECBASE64ENCODE"></a>xmlSecBase64Encode ()</h3>
<pre class="PROGRAMLISTING"><font>xmlChar</font>* xmlSecBase64Encode (const <a href="xmlsec-xmlsec.html#XMLSECBYTE">xmlSecByte</a> *buf,
<a href="xmlsec-xmlsec.html#XMLSECSIZE">xmlSecSize</a> len,
<font>int</font> columns);</pre>
<p>Encodes the data from input buffer and allocates the string for the result.
The caller is responsible for freeing returned buffer using
<font><code class="FUNCTION">xmlFree()</code></font> function.</p>
<p></p>
<p></p>
<table class="variablelist" border="0" cellspacing="0" cellpadding="4"><tbody>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN2189"><span style="white-space: nowrap"><var class="PARAMETER">buf</var> :</span></a></td>
<td align="LEFT" valign="TOP"><p> the input buffer.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN2194"><span style="white-space: nowrap"><var class="PARAMETER">len</var> :</span></a></td>
<td align="LEFT" valign="TOP"><p> the input buffer size.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN2199"><span style="white-space: nowrap"><var class="PARAMETER">columns</var> :</span></a></td>
<td align="LEFT" valign="TOP"><p> the output max line length (if 0 then no line breaks
would be inserted)</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN2204"><span style="white-space: nowrap"><span class="emphasis"><i class="EMPHASIS">Returns</i></span> :</span></a></td>
<td align="LEFT" valign="TOP"><p>newly allocated string with base64 encoded data
or NULL if an error occurs.</p></td>
</tr>
</tbody></table>
</div>
<hr>
<div class="REFSECT2">
<a name="AEN2209"></a><h3>
<a name="XMLSECBASE64DECODE"></a>xmlSecBase64Decode ()</h3>
<pre class="PROGRAMLISTING"><font>int</font> xmlSecBase64Decode (const <font>xmlChar</font> *str,
<a href="xmlsec-xmlsec.html#XMLSECBYTE">xmlSecByte</a> *buf,
<a href="xmlsec-xmlsec.html#XMLSECSIZE">xmlSecSize</a> len);</pre>
<p>Decodes input base64 encoded string and puts result into
the output buffer.</p>
<p></p>
<p></p>
<table class="variablelist" border="0" cellspacing="0" cellpadding="4"><tbody>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN2222"><span style="white-space: nowrap"><var class="PARAMETER">str</var> :</span></a></td>
<td align="LEFT" valign="TOP"><p> the input buffer with base64 encoded string</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN2227"><span style="white-space: nowrap"><var class="PARAMETER">buf</var> :</span></a></td>
<td align="LEFT" valign="TOP"><p> the output buffer</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN2232"><span style="white-space: nowrap"><var class="PARAMETER">len</var> :</span></a></td>
<td align="LEFT" valign="TOP"><p> the output buffer size</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN2237"><span style="white-space: nowrap"><span class="emphasis"><i class="EMPHASIS">Returns</i></span> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the number of bytes written to the output buffer or
a negative value if an error occurs </p></td>
</tr>
</tbody></table>
</div>
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