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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>Miscellaneous Functions: Gck Library Reference Manual</title>
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<a href="#" class="shortcut">Top</a><span id="nav_description">  <span class="dim">|</span> 
                  <a href="#gck-Miscellaneous-Functions.description" class="shortcut">Description</a></span>
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<a name="gck-Miscellaneous-Functions"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="gck-Miscellaneous-Functions.top_of_page"></a>Miscellaneous Functions</span></h2>
<p>Miscellaneous Functions — Other miscellaneous functions.</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="gck-Miscellaneous-Functions.functions"></a><h2>Functions</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="functions_return">
<col class="functions_name">
</colgroup>
<tbody>
<tr>
<td class="function_type">
<a href="../glib/glib-Doubly-Linked-Lists.html#GList"><span class="returnvalue">GList</span></a> *
</td>
<td class="function_name">
<a class="link" href="gck-Miscellaneous-Functions.html#gck-list-ref-copy" title="gck_list_ref_copy ()">gck_list_ref_copy</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="gck-Miscellaneous-Functions.html#gck-list-unref-free" title="gck_list_unref_free ()">gck_list_unref_free</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="../glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
</td>
<td class="function_name">
<a class="link" href="gck-Miscellaneous-Functions.html#gck-string-from-chars" title="gck_string_from_chars ()">gck_string_from_chars</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="../glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="gck-Miscellaneous-Functions.html#gck-string-to-chars" title="gck_string_to_chars ()">gck_string_to_chars</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="../glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="gck-Miscellaneous-Functions.html#gck-value-to-boolean" title="gck_value_to_boolean ()">gck_value_to_boolean</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="../glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="gck-Miscellaneous-Functions.html#gck-value-to-ulong" title="gck_value_to_ulong ()">gck_value_to_ulong</a> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="gck-Miscellaneous-Functions.other"></a><h2>Types and Values</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="name">
<col class="description">
</colgroup>
<tbody>
<tr>
<td class="datatype_keyword">enum</td>
<td class="function_name"><a class="link" href="gck-Miscellaneous-Functions.html#GckError" title="enum GckError">GckError</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="gck-Miscellaneous-Functions.html#GCK-INVALID:CAPS" title="GCK_INVALID">GCK_INVALID</a></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="gck-Miscellaneous-Functions.description"></a><h2>Description</h2>
<p>A few supporting functions that come in handy when dealing with the gck
library or PKCS11 in general.</p>
</div>
<div class="refsect1">
<a name="gck-Miscellaneous-Functions.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="gck-list-ref-copy"></a><h3>gck_list_ref_copy ()</h3>
<pre class="programlisting"><a href="../glib/glib-Doubly-Linked-Lists.html#GList"><span class="returnvalue">GList</span></a> *
gck_list_ref_copy (<em class="parameter"><code><a href="../glib/glib-Doubly-Linked-Lists.html#GList"><span class="type">GList</span></a> *reflist</code></em>);</pre>
<p>Copy a list of GObject based pointers. All objects
in the list will be reffed and the list will be copied.</p>
<p><span class="annotation">[<acronym title="Exposed in C code, not necessarily available in other languages."><span class="acronym">skip</span></acronym>]</span></p>
<div class="refsect3">
<a name="gck-list-ref-copy.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>reflist</p></td>
<td class="parameter_description"><p>list of GObject reference counted
objects. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Generics and defining elements of containers and arrays."><span class="acronym">element-type</span></acronym> GObject.Object]</span></td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gck-list-ref-copy.returns"></a><h4>Returns</h4>
<p>the copied and
reffed list, when done, free it with <a class="link" href="gck-Miscellaneous-Functions.html#gck-list-unref-free" title="gck_list_unref_free ()"><code class="function">gck_list_unref_free()</code></a>. </p>
<p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>][<acronym title="Generics and defining elements of containers and arrays."><span class="acronym">element-type</span></acronym> GObject.Object]</span></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gck-list-unref-free"></a><h3>gck_list_unref_free ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gck_list_unref_free (<em class="parameter"><code><a href="../glib/glib-Doubly-Linked-Lists.html#GList"><span class="type">GList</span></a> *reflist</code></em>);</pre>
<p>Free a list of GObject based pointers. All objects in the list
will be unreffed and then the list itself will be freed.</p>
<p><span class="annotation">[<acronym title="Exposed in C code, not necessarily available in other languages."><span class="acronym">skip</span></acronym>]</span></p>
<div class="refsect3">
<a name="gck-list-unref-free.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>reflist</p></td>
<td class="parameter_description"><p>list of Gobject reference counted pointers. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Generics and defining elements of containers and arrays."><span class="acronym">element-type</span></acronym> GObject.Object]</span></td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gck-string-from-chars"></a><h3>gck_string_from_chars ()</h3>
<pre class="programlisting"><a href="../glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
gck_string_from_chars (<em class="parameter"><code>const <a href="../glib/glib-Basic-Types.html#guchar"><span class="type">guchar</span></a> *data</code></em>,
                       <em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gsize"><span class="type">gsize</span></a> max</code></em>);</pre>
<p>Create a string from a set of PKCS#11 characters. This is
similar to g_strndup, except for that it also strips trailing
spaces. These space padded strings are often used in PKCS#11
structures.</p>
<p>If the space padded string is filled with null characters then
this function will return <a href="../glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>.</p>
<p><span class="annotation">[<acronym title="Exposed in C code, not necessarily available in other languages."><span class="acronym">skip</span></acronym>]</span></p>
<div class="refsect3">
<a name="gck-string-from-chars.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>data</p></td>
<td class="parameter_description"><p>The character data to turn into a null terminated string.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>max</p></td>
<td class="parameter_description"><p>The maximum length of the charater data.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gck-string-from-chars.returns"></a><h4>Returns</h4>
<p> The null terminated string.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gck-string-to-chars"></a><h3>gck_string_to_chars ()</h3>
<pre class="programlisting"><a href="../glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
gck_string_to_chars (<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#guchar"><span class="type">guchar</span></a> *data</code></em>,
                     <em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gsize"><span class="type">gsize</span></a> max</code></em>,
                     <em class="parameter"><code>const <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *string</code></em>);</pre>
<p>Create a space padded PKCS#11 string from a null terminated string.
The string must be shorter than the buffer or <a href="../glib/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> will be
returned.</p>
<p>If a <a href="../glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> string is passed, then the space padded string will be
set to zero characters.</p>
<p><span class="annotation">[<acronym title="Exposed in C code, not necessarily available in other languages."><span class="acronym">skip</span></acronym>]</span></p>
<div class="refsect3">
<a name="gck-string-to-chars.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>data</p></td>
<td class="parameter_description"><p>The character buffer to place string into.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>max</p></td>
<td class="parameter_description"><p>The maximum length of the charater buffer.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>string</p></td>
<td class="parameter_description"><p>The string to place in the buffer.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gck-string-to-chars.returns"></a><h4>Returns</h4>
<p> The null terminated string.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gck-value-to-boolean"></a><h3>gck_value_to_boolean ()</h3>
<pre class="programlisting"><a href="../glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
gck_value_to_boolean (<em class="parameter"><code>const <a href="../glib/glib-Basic-Types.html#guchar"><span class="type">guchar</span></a> *value</code></em>,
                      <em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gsize"><span class="type">gsize</span></a> length</code></em>,
                      <em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> *result</code></em>);</pre>
<p>Convert CK_BBOOL type memory to a boolean.</p>
<div class="refsect3">
<a name="gck-value-to-boolean.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>value</p></td>
<td class="parameter_description"><p>memory to convert. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter points to an array of items."><span class="acronym">array</span></acronym> length=length]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>length</p></td>
<td class="parameter_description"><p>length of memory</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>result</p></td>
<td class="parameter_description"><p>A location to store the result</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gck-value-to-boolean.returns"></a><h4>Returns</h4>
<p> Whether the conversion was successful.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gck-value-to-ulong"></a><h3>gck_value_to_ulong ()</h3>
<pre class="programlisting"><a href="../glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
gck_value_to_ulong (<em class="parameter"><code>const <a href="../glib/glib-Basic-Types.html#guchar"><span class="type">guchar</span></a> *value</code></em>,
                    <em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gsize"><span class="type">gsize</span></a> length</code></em>,
                    <em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gulong"><span class="type">gulong</span></a> *result</code></em>);</pre>
<p>Convert CK_ULONG type memory to a boolean.</p>
<div class="refsect3">
<a name="gck-value-to-ulong.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>value</p></td>
<td class="parameter_description"><p>memory to convert. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter points to an array of items."><span class="acronym">array</span></acronym> length=length]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>length</p></td>
<td class="parameter_description"><p>length of memory</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>result</p></td>
<td class="parameter_description"><p>A location to store the result</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gck-value-to-ulong.returns"></a><h4>Returns</h4>
<p> Whether the conversion was successful.</p>
</div>
</div>
</div>
<div class="refsect1">
<a name="gck-Miscellaneous-Functions.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="GckError"></a><h3>enum GckError</h3>
<p>Various error codes. All the CKR_XXX error codes from PKCS#11 are also
relevant error codes.</p>
<div class="refsect3">
<a name="GckError.members"></a><h4>Members</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="300px" class="enum_members_name">
<col class="enum_members_description">
<col width="200px" class="enum_members_annotations">
</colgroup>
<tbody><tr>
<td class="enum_member_name"><p><a name="GCK-ERROR-MODULE-PROBLEM:CAPS"></a>GCK_ERROR_MODULE_PROBLEM</p></td>
<td class="enum_member_description">
<p>a result code that signifies there was a problem
                           loading a PKCS#11 module, usually a shared library</p>
</td>
<td class="enum_member_annotations"> </td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GCK-INVALID:CAPS"></a><h3>GCK_INVALID</h3>
<pre class="programlisting">#define GCK_INVALID ((gulong)-1)
</pre>
<p>Used as a terminator at the end of variable argument lists.</p>
</div>
</div>
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