ProxSpace/msys2/usr/share/gtk-doc/html/p11-kit/p11-kit-Utilities.html
2023-09-22 00:10:50 +02:00

269 lines
12 KiB
HTML
Raw Permalink Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Utilities: p11-kit</title>
<meta name="generator" content="DocBook XSL Stylesheets Vsnapshot">
<link rel="home" href="index.html" title="p11-kit">
<link rel="up" href="reference.html" title="API Reference">
<link rel="prev" href="p11-kit-PIN-Callbacks.html" title="PIN Callbacks">
<link rel="next" href="p11-kit-Future.html" title="Future">
<meta name="generator" content="GTK-Doc V1.33.1 (XML mode)">
<link rel="stylesheet" href="style.css" type="text/css">
</head>
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
<table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="5"><tr valign="middle">
<td width="100%" align="left" class="shortcuts">
<a href="#" class="shortcut">Top</a><span id="nav_description">  <span class="dim">|</span> 
<a href="#p11-kit-Utilities.description" class="shortcut">Description</a></span>
</td>
<td><a accesskey="h" href="index.html"><img src="home.png" width="16" height="16" border="0" alt="Home"></a></td>
<td><a accesskey="u" href="reference.html"><img src="up.png" width="16" height="16" border="0" alt="Up"></a></td>
<td><a accesskey="p" href="p11-kit-PIN-Callbacks.html"><img src="left.png" width="16" height="16" border="0" alt="Prev"></a></td>
<td><a accesskey="n" href="p11-kit-Future.html"><img src="right.png" width="16" height="16" border="0" alt="Next"></a></td>
</tr></table>
<div class="refentry">
<a name="p11-kit-Utilities"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="p11-kit-Utilities.top_of_page"></a>Utilities</span></h2>
<p>Utilities — PKCS#11 utilities</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="p11-kit-Utilities.functions"></a><h2>Functions</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="functions_proto_type">
<col class="functions_proto_name">
</colgroup>
<tbody>
<tr>
<td class="function_type">const <span class="returnvalue">char</span> *
</td>
<td class="function_name">
<a class="link" href="p11-kit-Utilities.html#p11-kit-strerror" title="p11_kit_strerror ()">p11_kit_strerror</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">const <span class="returnvalue">char</span> *
</td>
<td class="function_name">
<a class="link" href="p11-kit-Utilities.html#p11-kit-message" title="p11_kit_message ()">p11_kit_message</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">char</span> *
</td>
<td class="function_name">
<a class="link" href="p11-kit-Utilities.html#p11-kit-space-strdup" title="p11_kit_space_strdup ()">p11_kit_space_strdup</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">size_t</span>
</td>
<td class="function_name">
<a class="link" href="p11-kit-Utilities.html#p11-kit-space-strlen" title="p11_kit_space_strlen ()">p11_kit_space_strlen</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="p11-kit-Utilities.html#p11-kit-be-quiet" title="p11_kit_be_quiet ()">p11_kit_be_quiet</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="p11-kit-Utilities.html#p11-kit-be-loud" title="p11_kit_be_loud ()">p11_kit_be_loud</a> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="p11-kit-Utilities.description"></a><h2>Description</h2>
<p>Utility functions for working with PKCS#11.</p>
</div>
<div class="refsect1">
<a name="p11-kit-Utilities.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="p11-kit-strerror"></a><h3>p11_kit_strerror ()</h3>
<pre class="programlisting">const <span class="returnvalue">char</span> *
p11_kit_strerror (<em class="parameter"><code><span class="type">CK_RV</span> rv</code></em>);</pre>
<p>Get a message for a PKCS#11 return value or error code. Do not
pass CKR_OK or other such non errors to this function.</p>
<div class="refsect3">
<a name="p11-kit-strerror.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>rv</p></td>
<td class="parameter_description"><p>The code to get a message for.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="p11-kit-strerror.returns"></a><h4>Returns</h4>
<p> The user readable and localized message.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="p11-kit-message"></a><h3>p11_kit_message ()</h3>
<pre class="programlisting">const <span class="returnvalue">char</span> *
p11_kit_message (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>Gets the failure message for a recently called p11-kit function, which
returned a failure code on this thread. Not all functions set this message.
Each function that does so, will note it in its documentation.</p>
<p>If the most recent p11-kit function did not fail, then this will return NULL.
The string is owned by the p11-kit library and is only valid on the same
thread that the failed function executed on.</p>
<div class="refsect3">
<a name="p11-kit-message.returns"></a><h4>Returns</h4>
<p> The last failure message, or <a href="../glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="p11-kit-space-strdup"></a><h3>p11_kit_space_strdup ()</h3>
<pre class="programlisting"><span class="returnvalue">char</span> *
p11_kit_space_strdup (<em class="parameter"><code>const unsigned <span class="type">char</span> *string</code></em>,
<em class="parameter"><code><span class="type">size_t</span> max_length</code></em>);</pre>
<p>In PKCS#11 structures many strings are encoded in a strange way. The string
is placed in a fixed length buffer and then padded with spaces.</p>
<p>This function copies the space padded string into a normal null-terminated
string. The result is owned by the caller.</p>
<div class="informalexample">
<table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td class="listing_lines" align="right"><pre>1
2
3
4</pre></td>
<td class="listing_code"><pre class="programlisting"><span class="n">CK_INFO</span><span class="w"> </span><span class="n">info</span><span class="p">;</span>
<span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">description</span><span class="p">;</span>
<span class="w"> </span><span class="p">...</span>
<span class="n">description</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">p11_kit_space_strdup</span><span class="w"> </span><span class="p">(</span><span class="n">info</span><span class="o">-&gt;</span><span class="n">libraryDescription</span><span class="p">,</span><span class="w"> </span><span class="k">sizeof</span><span class="w"> </span><span class="p">(</span><span class="n">info</span><span class="o">-&gt;</span><span class="n">libraryDescription</span><span class="p">));</span></pre></td>
</tr>
</tbody>
</table>
</div>
<div class="refsect3">
<a name="p11-kit-space-strdup.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>string</p></td>
<td class="parameter_description"><p>Pointer to string block</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>max_length</p></td>
<td class="parameter_description"><p>Maximum length of string block</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="p11-kit-space-strdup.returns"></a><h4>Returns</h4>
<p> The newly allocated string, or <a href="../glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> if memory could not be allocated.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="p11-kit-space-strlen"></a><h3>p11_kit_space_strlen ()</h3>
<pre class="programlisting"><span class="returnvalue">size_t</span>
p11_kit_space_strlen (<em class="parameter"><code>const unsigned <span class="type">char</span> *string</code></em>,
<em class="parameter"><code><span class="type">size_t</span> max_length</code></em>);</pre>
<p>In PKCS#11 structures many strings are encoded in a strange way. The string
is placed in a fixed length buffer and then padded with spaces.</p>
<p>This function determines the actual length of the string. Since the string
is not null-terminated you need to pass in the size of buffer as max_length.
The string will never be longer than this buffer.</p>
<div class="informalexample">
<table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td class="listing_lines" align="right"><pre>1
2
3
4</pre></td>
<td class="listing_code"><pre class="programlisting"><span class="n">CK_INFO</span><span class="w"> </span><span class="n">info</span><span class="p">;</span>
<span class="kt">size_t</span><span class="w"> </span><span class="n">length</span><span class="p">;</span>
<span class="w"> </span><span class="p">...</span>
<span class="n">length</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">p11_kit_space_strlen</span><span class="w"> </span><span class="p">(</span><span class="n">info</span><span class="o">-&gt;</span><span class="n">libraryDescription</span><span class="p">,</span><span class="w"> </span><span class="k">sizeof</span><span class="w"> </span><span class="p">(</span><span class="n">info</span><span class="o">-&gt;</span><span class="n">libraryDescription</span><span class="p">));</span></pre></td>
</tr>
</tbody>
</table>
</div>
<div class="refsect3">
<a name="p11-kit-space-strlen.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>string</p></td>
<td class="parameter_description"><p>Pointer to string block</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>max_length</p></td>
<td class="parameter_description"><p>Maximum length of string block</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="p11-kit-space-strlen.returns"></a><h4>Returns</h4>
<p> The length of the space padded string.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="p11-kit-be-quiet"></a><h3>p11_kit_be_quiet ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
p11_kit_be_quiet (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>Once this function is called, the p11-kit library will no longer print
failure or warning messages to stderr.</p>
</div>
<hr>
<div class="refsect2">
<a name="p11-kit-be-loud"></a><h3>p11_kit_be_loud ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
p11_kit_be_loud (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>Tell the p11-kit library will print failure or warning messages to stderr.
This is the default behavior, but can be changed using <a class="link" href="p11-kit-Utilities.html#p11-kit-be-quiet" title="p11_kit_be_quiet ()"><code class="function">p11_kit_be_quiet()</code></a>.</p>
</div>
</div>
</div>
<div class="footer">
<hr>Generated by GTK-Doc V1.33.1</div>
</body>
</html>