<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>base64</title>
<meta name="GENERATOR" content="Modular DocBook HTML Stylesheet Version 1.79">
<link rel="HOME" title="XML Security Library Reference Manual" href="index.html">
<link rel="UP" title="XML Security Core Library API Reference." href="xmlsec-ref.html">
<link rel="PREVIOUS" title="app" href="xmlsec-app.html">
<link rel="NEXT" title="bn" href="xmlsec-bn.html">
<style type="text/css">.synopsis, .classsynopsis {
background: #eeeeee;
border: solid 1px #aaaaaa;
padding: 0.5em;
}
.programlisting {
background: #eeeeff;
border: solid 1px #aaaaff;
padding: 0.5em;
}
.variablelist {
padding: 4px;
margin-left: 3em;
}
.navigation {
background: #ffeeee;
border: solid 1px #ffaaaa;
margin-top: 0.5em;
margin-bottom: 0.5em;
}
.navigation a {
color: #770000;
}
.navigation a:visited {
color: #550000;
}
.navigation .title {
font-size: 200%;
}</style>
</head>
<body><table witdh="100%" valign="top"><tr valign="top">
<td valign="top" align="left" width="210">
<img src="../images/logo.gif" alt="XML Security Library" border="0"><p></p>
<ul>
<li><a href="../index.html">Home</a></li>
<li><a href="../download.html">Download</a></li>
<li><a href="../news.html">News</a></li>
<li><a href="../documentation.html">Documentation</a></li>
<ul>
<li><a href="../faq.html">FAQ</a></li>
<li><a href="../api/xmlsec-notes.html">Tutorial</a></li>
<li><a href="../api/xmlsec-reference.html">API reference</a></li>
<li><a href="../api/xmlsec-examples.html">Examples</a></li>
</ul>
<li><a href="../xmldsig.html">XML Digital Signature</a></li>
<ul><li><a href="http://www.aleksey.com/xmlsec/xmldsig-verifier.html">Online Verifier</a></li></ul>
<li><a href="../xmlenc.html">XML Encryption</a></li>
<li><a href="../c14n.html">XML Canonicalization</a></li>
<li><a href="../bugs.html">Reporting Bugs</a></li>
<li><a href="http://www.aleksey.com/pipermail/xmlsec">Mailing list</a></li>
<li><a href="../related.html">Related</a></li>
<li><a href="../authors.html">Authors</a></li>
</ul>
<table width="100%">
<tr>
<td width="15"></td>
<td><a href="http://xmlsoft.org/"><img src="../images/libxml2-logo.png" alt="LibXML2" border="0"></a></td>
</tr>
<tr>
<td width="15"></td>
<td><a href="http://xmlsoft.org/XSLT"><img src="../images/libxslt-logo.png" alt="LibXSLT" border="0"></a></td>
</tr>
<tr>
<td width="15"></td>
<td><a href="http://www.openssl.org/"><img src="../images/openssl-logo.png" alt="OpenSSL" border="0"></a></td>
</tr>
<!--Links - start--><!--Links - end-->
</table>
</td>
<td valign="top"><table width="100%" valign="top"><tr><td valign="top" align="left" id="xmlsecContent">
<table width="100%" class="navigation" summary="Navigation header" cellpadding="2" cellspacing="2"><tr valign="middle">
<td><a accesskey="p" href="xmlsec-app.html"><img src="left.png" width="24" height="24" border="0" alt="Prev"></a></td>
<td><a accesskey="u" href="xmlsec-ref.html"><img src="up.png" width="24" height="24" border="0" alt="Up"></a></td>
<td><a accesskey="h" href="index.html"><img src="home.png" width="24" height="24" border="0" alt="Home"></a></td>
<th width="100%" align="center">XML Security Library Reference Manual</th>
<td><a accesskey="n" href="xmlsec-bn.html"><img src="right.png" width="24" height="24" border="0" alt="Next"></a></td>
</tr></table>
<h1>
<a name="XMLSEC-BASE64"></a>base64</h1>
<div class="REFNAMEDIV">
<a name="AEN2904"></a><h2>Name</h2>base64 -- Base64 encoding/decoding functions.</div>
<div class="REFSYNOPSISDIV">
<a name="XMLSEC-BASE64.SYNOPSIS"></a><h2>Synopsis</h2>
<pre class="SYNOPSIS">#define <a href="xmlsec-base64.html#XMLSEC-BASE64-LINESIZE:CAPS">XMLSEC_BASE64_LINESIZE</a>
<gtkdoclink href="INT"><span class="RETURNVALUE">int</span></gtkdoclink><a href="xmlsec-base64.html#XMLSECBASE64GETDEFAULTLINESIZE">xmlSecBase64GetDefaultLineSize</a> (<code class="PARAMETER"><span class="TYPE">void</span></code>);
<gtkdoclink href="VOID"><span class="RETURNVALUE">void</span></gtkdoclink><a href="xmlsec-base64.html#XMLSECBASE64SETDEFAULTLINESIZE">xmlSecBase64SetDefaultLineSize</a> (<code class="PARAMETER"><gtkdoclink href="INT"><span class="TYPE">int</span></gtkdoclink> columns</code>);
<gtkdoclink href="XMLSECBASE64CTX"><span class="RETURNVALUE">xmlSecBase64CtxPtr</span></gtkdoclink><a href="xmlsec-base64.html#XMLSECBASE64CTXCREATE">xmlSecBase64CtxCreate</a> (<code class="PARAMETER"><gtkdoclink href="INT"><span class="TYPE">int</span></gtkdoclink> encode</code>,
<code class="PARAMETER"><gtkdoclink href="INT"><span class="TYPE">int</span></gtkdoclink> columns</code>);
<gtkdoclink href="VOID"><span class="RETURNVALUE">void</span></gtkdoclink><a href="xmlsec-base64.html#XMLSECBASE64CTXDESTROY">xmlSecBase64CtxDestroy</a> (<code class="PARAMETER"><gtkdoclink href="XMLSECBASE64CTX"><span class="TYPE">xmlSecBase64CtxPtr</span></gtkdoclink> ctx</code>);
<gtkdoclink href="INT"><span class="RETURNVALUE">int</span></gtkdoclink><a href="xmlsec-base64.html#XMLSECBASE64CTXINITIALIZE">xmlSecBase64CtxInitialize</a> (<code class="PARAMETER"><gtkdoclink href="XMLSECBASE64CTX"><span class="TYPE">xmlSecBase64CtxPtr</span></gtkdoclink> ctx</code>,
<code class="PARAMETER"><gtkdoclink href="INT"><span class="TYPE">int</span></gtkdoclink> encode</code>,
<code class="PARAMETER"><gtkdoclink href="INT"><span class="TYPE">int</span></gtkdoclink> columns</code>);
<gtkdoclink href="VOID"><span class="RETURNVALUE">void</span></gtkdoclink><a href="xmlsec-base64.html#XMLSECBASE64CTXFINALIZE">xmlSecBase64CtxFinalize</a> (<code class="PARAMETER"><gtkdoclink href="XMLSECBASE64CTX"><span class="TYPE">xmlSecBase64CtxPtr</span></gtkdoclink> ctx</code>);
<gtkdoclink href="INT"><span class="RETURNVALUE">int</span></gtkdoclink><a href="xmlsec-base64.html#XMLSECBASE64CTXUPDATE">xmlSecBase64CtxUpdate</a> (<code class="PARAMETER"><gtkdoclink href="XMLSECBASE64CTX"><span class="TYPE">xmlSecBase64CtxPtr</span></gtkdoclink> ctx</code>,
<code class="PARAMETER">const <a href="xmlsec-xmlsec.html#XMLSECBYTE"><span class="TYPE">xmlSecByte</span></a> *in</code>,
<code class="PARAMETER"><a href="xmlsec-xmlsec.html#XMLSECSIZE"><span class="TYPE">xmlSecSize</span></a> inSize</code>,
<code class="PARAMETER"><a href="xmlsec-xmlsec.html#XMLSECBYTE"><span class="TYPE">xmlSecByte</span></a> *out</code>,
<code class="PARAMETER"><a href="xmlsec-xmlsec.html#XMLSECSIZE"><span class="TYPE">xmlSecSize</span></a> outSize</code>);
<gtkdoclink href="INT"><span class="RETURNVALUE">int</span></gtkdoclink><a href="xmlsec-base64.html#XMLSECBASE64CTXFINAL">xmlSecBase64CtxFinal</a> (<code class="PARAMETER"><gtkdoclink href="XMLSECBASE64CTX"><span class="TYPE">xmlSecBase64CtxPtr</span></gtkdoclink> ctx</code>,
<code class="PARAMETER"><a href="xmlsec-xmlsec.html#XMLSECBYTE"><span class="TYPE">xmlSecByte</span></a> *out</code>,
<code class="PARAMETER"><a href="xmlsec-xmlsec.html#XMLSECSIZE"><span class="TYPE">xmlSecSize</span></a> outSize</code>);
<gtkdoclink href="XMLCHAR"><span class="RETURNVALUE">xmlChar</span></gtkdoclink>* <a href="xmlsec-base64.html#XMLSECBASE64ENCODE">xmlSecBase64Encode</a> (<code class="PARAMETER">const <a href="xmlsec-xmlsec.html#XMLSECBYTE"><span class="TYPE">xmlSecByte</span></a> *buf</code>,
<code class="PARAMETER"><a href="xmlsec-xmlsec.html#XMLSECSIZE"><span class="TYPE">xmlSecSize</span></a> len</code>,
<code class="PARAMETER"><gtkdoclink href="INT"><span class="TYPE">int</span></gtkdoclink> columns</code>);
<gtkdoclink href="INT"><span class="RETURNVALUE">int</span></gtkdoclink><a href="xmlsec-base64.html#XMLSECBASE64DECODE">xmlSecBase64Decode</a> (<code class="PARAMETER">const <gtkdoclink href="XMLCHAR"><span class="TYPE">xmlChar</span></gtkdoclink> *str</code>,
<code class="PARAMETER"><a href="xmlsec-xmlsec.html#XMLSECBYTE"><span class="TYPE">xmlSecByte</span></a> *buf</code>,
<code class="PARAMETER"><a href="xmlsec-xmlsec.html#XMLSECSIZE"><span class="TYPE">xmlSecSize</span></a> len</code>);</pre>
</div>
<div class="REFSECT1">
<a name="XMLSEC-BASE64.DESCRIPTION"></a><h2>Description</h2>
<p>Base64 encoding/decoding functions.</p>
</div>
<div class="REFSECT1">
<a name="XMLSEC-BASE64.DETAILS"></a><h2>Details</h2>
<div class="REFSECT2">
<a name="XMLSEC-BASE64-LINESIZE:CAPS"></a><h3>XMLSEC_BASE64_LINESIZE</h3>
<pre class="PROGRAMLISTING">#define XMLSEC_BASE64_LINESIZE 64</pre>
<p>The default maximum base64 encoded line size.</p>
</div>
<hr>
<div class="REFSECT2">
<a name="XMLSECBASE64GETDEFAULTLINESIZE"></a><h3>xmlSecBase64GetDefaultLineSize ()</h3>
<pre class="PROGRAMLISTING"><gtkdoclink href="INT"><span class="RETURNVALUE">int</span></gtkdoclink> xmlSecBase64GetDefaultLineSize (<code class="PARAMETER"><span class="TYPE">void</span></code>);</pre>
<p>Gets the current default line size.</p>
<p></p>
<table class="variablelist" border="0" cellspacing="0" cellpadding="4"><tbody><tr>
<td align="LEFT" valign="TOP"><a name="AEN3031"><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 default line size.</p></td>
</tr></tbody></table>
</div>
<hr>
<div class="REFSECT2">
<a name="XMLSECBASE64SETDEFAULTLINESIZE"></a><h3>xmlSecBase64SetDefaultLineSize ()</h3>
<pre class="PROGRAMLISTING"><gtkdoclink href="VOID"><span class="RETURNVALUE">void</span></gtkdoclink> xmlSecBase64SetDefaultLineSize (<code class="PARAMETER"><gtkdoclink href="INT"><span class="TYPE">int</span></gtkdoclink> columns</code>);</pre>
<p>Sets the current default line size.</p>
<p></p>
<table class="variablelist" border="0" cellspacing="0" cellpadding="4"><tbody><tr>
<td align="LEFT" valign="TOP"><a name="AEN3048"><span style="white-space: nowrap"><code class="PARAMETER">columns</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>number of columns</p></td>
</tr></tbody></table>
</div>
<hr>
<div class="REFSECT2">
<a name="XMLSECBASE64CTXCREATE"></a><h3>xmlSecBase64CtxCreate ()</h3>
<pre class="PROGRAMLISTING"><gtkdoclink href="XMLSECBASE64CTX"><span class="RETURNVALUE">xmlSecBase64CtxPtr</span></gtkdoclink> xmlSecBase64CtxCreate (<code class="PARAMETER"><gtkdoclink href="INT"><span class="TYPE">int</span></gtkdoclink> encode</code>,
<code class="PARAMETER"><gtkdoclink href="INT"><span class="TYPE">int</span></gtkdoclink> columns</code>);</pre>
<p>Allocates and initializes new base64 context.</p>
<p></p>
<table class="variablelist" border="0" cellspacing="0" cellpadding="4"><tbody>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN3068"><span style="white-space: nowrap"><code class="PARAMETER">encode</code> :</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="AEN3073"><span style="white-space: nowrap"><code class="PARAMETER">columns</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the max line length.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN3078"><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 <gtkdoclink href="XMLSECBASE64CTX"><span class="TYPE">xmlSecBase64Ctx</span></gtkdoclink> structure
or NULL if an error occurs.</p></td>
</tr>
</tbody></table>
</div>
<hr>
<div class="REFSECT2">
<a name="XMLSECBASE64CTXDESTROY"></a><h3>xmlSecBase64CtxDestroy ()</h3>
<pre class="PROGRAMLISTING"><gtkdoclink href="VOID"><span class="RETURNVALUE">void</span></gtkdoclink> xmlSecBase64CtxDestroy (<code class="PARAMETER"><gtkdoclink href="XMLSECBASE64CTX"><span class="TYPE">xmlSecBase64CtxPtr</span></gtkdoclink> ctx</code>);</pre>
<p>Destroys base64 context.</p>
<p></p>
<table class="variablelist" border="0" cellspacing="0" cellpadding="4"><tbody><tr>
<td align="LEFT" valign="TOP"><a name="AEN3097"><span style="white-space: nowrap"><code class="PARAMETER">ctx</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the pointer to <gtkdoclink href="XMLSECBASE64CTX"><span class="TYPE">xmlSecBase64Ctx</span></gtkdoclink> structure.</p></td>
</tr></tbody></table>
</div>
<hr>
<div class="REFSECT2">
<a name="XMLSECBASE64CTXINITIALIZE"></a><h3>xmlSecBase64CtxInitialize ()</h3>
<pre class="PROGRAMLISTING"><gtkdoclink href="INT"><span class="RETURNVALUE">int</span></gtkdoclink> xmlSecBase64CtxInitialize (<code class="PARAMETER"><gtkdoclink href="XMLSECBASE64CTX"><span class="TYPE">xmlSecBase64CtxPtr</span></gtkdoclink> ctx</code>,
<code class="PARAMETER"><gtkdoclink href="INT"><span class="TYPE">int</span></gtkdoclink> encode</code>,
<code class="PARAMETER"><gtkdoclink href="INT"><span class="TYPE">int</span></gtkdoclink> columns</code>);</pre>
<p>Initializes new base64 context.</p>
<p></p>
<table class="variablelist" border="0" cellspacing="0" cellpadding="4"><tbody>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN3122"><span style="white-space: nowrap"><code class="PARAMETER">ctx</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the pointer to <gtkdoclink href="XMLSECBASE64CTX"><span class="TYPE">xmlSecBase64Ctx</span></gtkdoclink> structure,</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN3129"><span style="white-space: nowrap"><code class="PARAMETER">encode</code> :</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="AEN3134"><span style="white-space: nowrap"><code class="PARAMETER">columns</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the max line length.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN3139"><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="XMLSECBASE64CTXFINALIZE"></a><h3>xmlSecBase64CtxFinalize ()</h3>
<pre class="PROGRAMLISTING"><gtkdoclink href="VOID"><span class="RETURNVALUE">void</span></gtkdoclink> xmlSecBase64CtxFinalize (<code class="PARAMETER"><gtkdoclink href="XMLSECBASE64CTX"><span class="TYPE">xmlSecBase64CtxPtr</span></gtkdoclink> ctx</code>);</pre>
<p>Frees all the resources allocated by <code class="PARAMETER">ctx</code>.</p>
<p></p>
<table class="variablelist" border="0" cellspacing="0" cellpadding="4"><tbody><tr>
<td align="LEFT" valign="TOP"><a name="AEN3157"><span style="white-space: nowrap"><code class="PARAMETER">ctx</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the pointer to <gtkdoclink href="XMLSECBASE64CTX"><span class="TYPE">xmlSecBase64Ctx</span></gtkdoclink> structure,</p></td>
</tr></tbody></table>
</div>
<hr>
<div class="REFSECT2">
<a name="XMLSECBASE64CTXUPDATE"></a><h3>xmlSecBase64CtxUpdate ()</h3>
<pre class="PROGRAMLISTING"><gtkdoclink href="INT"><span class="RETURNVALUE">int</span></gtkdoclink> xmlSecBase64CtxUpdate (<code class="PARAMETER"><gtkdoclink href="XMLSECBASE64CTX"><span class="TYPE">xmlSecBase64CtxPtr</span></gtkdoclink> ctx</code>,
<code class="PARAMETER">const <a href="xmlsec-xmlsec.html#XMLSECBYTE"><span class="TYPE">xmlSecByte</span></a> *in</code>,
<code class="PARAMETER"><a href="xmlsec-xmlsec.html#XMLSECSIZE"><span class="TYPE">xmlSecSize</span></a> inSize</code>,
<code class="PARAMETER"><a href="xmlsec-xmlsec.html#XMLSECBYTE"><span class="TYPE">xmlSecByte</span></a> *out</code>,
<code class="PARAMETER"><a href="xmlsec-xmlsec.html#XMLSECSIZE"><span class="TYPE">xmlSecSize</span></a> outSize</code>);</pre>
<p>Encodes or decodes the next piece of data from input buffer.</p>
<p></p>
<table class="variablelist" border="0" cellspacing="0" cellpadding="4"><tbody>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN3188"><span style="white-space: nowrap"><code class="PARAMETER">ctx</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the pointer to <gtkdoclink href="XMLSECBASE64CTX"><span class="TYPE">xmlSecBase64Ctx</span></gtkdoclink> structure</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN3195"><span style="white-space: nowrap"><code class="PARAMETER">in</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the input buffer</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN3200"><span style="white-space: nowrap"><code class="PARAMETER">inSize</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the input buffer size</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN3205"><span style="white-space: nowrap"><code class="PARAMETER">out</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the output buffer</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN3210"><span style="white-space: nowrap"><code class="PARAMETER">outSize</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the output buffer size</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN3215"><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="XMLSECBASE64CTXFINAL"></a><h3>xmlSecBase64CtxFinal ()</h3>
<pre class="PROGRAMLISTING"><gtkdoclink href="INT"><span class="RETURNVALUE">int</span></gtkdoclink> xmlSecBase64CtxFinal (<code class="PARAMETER"><gtkdoclink href="XMLSECBASE64CTX"><span class="TYPE">xmlSecBase64CtxPtr</span></gtkdoclink> ctx</code>,
<code class="PARAMETER"><a href="xmlsec-xmlsec.html#XMLSECBYTE"><span class="TYPE">xmlSecByte</span></a> *out</code>,
<code class="PARAMETER"><a href="xmlsec-xmlsec.html#XMLSECSIZE"><span class="TYPE">xmlSecSize</span></a> outSize</code>);</pre>
<p>Encodes or decodes the last piece of data stored in the context
and finalizes the result.</p>
<p></p>
<table class="variablelist" border="0" cellspacing="0" cellpadding="4"><tbody>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN3238"><span style="white-space: nowrap"><code class="PARAMETER">ctx</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the pointer to <gtkdoclink href="XMLSECBASE64CTX"><span class="TYPE">xmlSecBase64Ctx</span></gtkdoclink> structure</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN3245"><span style="white-space: nowrap"><code class="PARAMETER">out</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the output buffer</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN3250"><span style="white-space: nowrap"><code class="PARAMETER">outSize</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the output buffer size</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN3255"><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="XMLSECBASE64ENCODE"></a><h3>xmlSecBase64Encode ()</h3>
<pre class="PROGRAMLISTING"><gtkdoclink href="XMLCHAR"><span class="RETURNVALUE">xmlChar</span></gtkdoclink>* xmlSecBase64Encode (<code class="PARAMETER">const <a href="xmlsec-xmlsec.html#XMLSECBYTE"><span class="TYPE">xmlSecByte</span></a> *buf</code>,
<code class="PARAMETER"><a href="xmlsec-xmlsec.html#XMLSECSIZE"><span class="TYPE">xmlSecSize</span></a> len</code>,
<code class="PARAMETER"><gtkdoclink href="INT"><span class="TYPE">int</span></gtkdoclink> columns</code>);</pre>
<p>Encodes the data from input buffer and allocates the string for the result.
The caller is responsible for freeing returned buffer using
<gtkdoclink href="XMLFREE"><code class="FUNCTION">xmlFree()</code></gtkdoclink> function.</p>
<p></p>
<table class="variablelist" border="0" cellspacing="0" cellpadding="4"><tbody>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN3280"><span style="white-space: nowrap"><code class="PARAMETER">buf</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the input buffer.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN3285"><span style="white-space: nowrap"><code class="PARAMETER">len</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the input buffer size.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN3290"><span style="white-space: nowrap"><code class="PARAMETER">columns</code> :</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="AEN3295"><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="XMLSECBASE64DECODE"></a><h3>xmlSecBase64Decode ()</h3>
<pre class="PROGRAMLISTING"><gtkdoclink href="INT"><span class="RETURNVALUE">int</span></gtkdoclink> xmlSecBase64Decode (<code class="PARAMETER">const <gtkdoclink href="XMLCHAR"><span class="TYPE">xmlChar</span></gtkdoclink> *str</code>,
<code class="PARAMETER"><a href="xmlsec-xmlsec.html#XMLSECBYTE"><span class="TYPE">xmlSecByte</span></a> *buf</code>,
<code class="PARAMETER"><a href="xmlsec-xmlsec.html#XMLSECSIZE"><span class="TYPE">xmlSecSize</span></a> len</code>);</pre>
<p>Decodes input base64 encoded string and puts result into
the output buffer.</p>
<p></p>
<table class="variablelist" border="0" cellspacing="0" cellpadding="4"><tbody>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN3318"><span style="white-space: nowrap"><code class="PARAMETER">str</code> :</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="AEN3323"><span style="white-space: nowrap"><code class="PARAMETER">buf</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the output buffer</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN3328"><span style="white-space: nowrap"><code class="PARAMETER">len</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the output buffer size</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN3333"><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>
</div>
<table class="navigation" width="100%" summary="Navigation footer" cellpadding="2" cellspacing="2"><tr valign="middle">
<td align="left"><a accesskey="p" href="xmlsec-app.html"><b><<< app</b></a></td>
<td align="right"><a accesskey="n" href="xmlsec-bn.html"><b>bn >>></b></a></td>
</tr></table>
</td></tr></table></td>
</tr></table></body>
</html>