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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>config: libuser Reference Manual</title> <meta name="generator" content="DocBook XSL Stylesheets V1.78.1"> <link rel="home" href="index.html" title="libuser Reference Manual"> <link rel="up" href="ch01.html" title="libuser"> <link rel="prev" href="ch01.html" title="libuser"> <link rel="next" href="libuser-value.html" title="value"> <meta name="generator" content="GTK-Doc V1.24 (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="#libuser-config.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="ch01.html"><img src="up.png" width="16" height="16" border="0" alt="Up"></a></td> <td><a accesskey="p" href="ch01.html"><img src="left.png" width="16" height="16" border="0" alt="Prev"></a></td> <td><a accesskey="n" href="libuser-value.html"><img src="right.png" width="16" height="16" border="0" alt="Next"></a></td> </tr></table> <div class="refentry"> <a name="libuser-config"></a><div class="titlepage"></div> <div class="refnamediv"><table width="100%"><tr> <td valign="top"> <h2><span class="refentrytitle"><a name="libuser-config.top_of_page"></a>config</span></h2> <p>config — Routines for reading configuration information for the libuser library.</p> </td> <td class="gallery_image" valign="top" align="right"></td> </tr></table></div> <div class="refsect1"> <a name="libuser-config.functions"></a><h2>Functions</h2> <div class="informaltable"><table width="100%" border="0"> <colgroup> <col width="150px" class="functions_return"> <col class="functions_name"> </colgroup> <tbody> <tr> <td class="function_type"> <a href="https://developer.gnome.org/glib/unstable/glib-Doubly-Linked-Lists.html#GList"><span class="returnvalue">GList</span></a> * </td> <td class="function_name"> <a class="link" href="libuser-config.html#lu-cfg-read" title="lu_cfg_read ()">lu_cfg_read</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="libuser-config.html#lu-cfg-read-single" title="lu_cfg_read_single ()">lu_cfg_read_single</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <a href="https://developer.gnome.org/glib/unstable/glib-Doubly-Linked-Lists.html#GList"><span class="returnvalue">GList</span></a> * </td> <td class="function_name"> <a class="link" href="libuser-config.html#lu-cfg-read-keys" title="lu_cfg_read_keys ()">lu_cfg_read_keys</a> <span class="c_punctuation">()</span> </td> </tr> </tbody> </table></div> </div> <div class="refsect1"> <a name="libuser-config.includes"></a><h2>Includes</h2> <pre class="synopsis">#include <libuser/config.h> </pre> </div> <div class="refsect1"> <a name="libuser-config.description"></a><h2>Description</h2> <p>These routines allow an application or module to read configuration data from the libuser configuration.</p> </div> <div class="refsect1"> <a name="libuser-config.functions_details"></a><h2>Functions</h2> <div class="refsect2"> <a name="lu-cfg-read"></a><h3>lu_cfg_read ()</h3> <pre class="programlisting"><a href="https://developer.gnome.org/glib/unstable/glib-Doubly-Linked-Lists.html#GList"><span class="returnvalue">GList</span></a> * lu_cfg_read (<em class="parameter"><code><span class="type">struct lu_context</span> *context</code></em>, <em class="parameter"><code>const <span class="type">char</span> *key</code></em>, <em class="parameter"><code>const <span class="type">char</span> *default_value</code></em>);</pre> <p>Reads the list of values for a given key from the configuration space.</p> <div class="refsect3"> <a name="id-1.2.2.6.2.5"></a><h4>Parameters</h4> <div class="informaltable"><table 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>context</p></td> <td class="parameter_description"><p>A valid libuser library context.</p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>key</p></td> <td class="parameter_description"><p>The value to be read from the configuration. The key should be of the form "section/key" for most purposes. For example, the <span class="type">files</span> module uses keys of the form "files/foo" for all of its configuration data.</p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>default_value</p></td> <td class="parameter_description"><p>A default value to be returned in case none are found. Can be <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>.</p></td> <td class="parameter_annotations"> </td> </tr> </tbody> </table></div> </div> <div class="refsect3"> <a name="id-1.2.2.6.2.6"></a><h4>Returns</h4> <p> A <a href="https://developer.gnome.org/glib/unstable/glib-Doubly-Linked-Lists.html#GList"><span class="type">GList</span></a> of values, formatted as strings. The list must be freed by calling <a href="https://developer.gnome.org/glib/unstable/glib-Doubly-Linked-Lists.html#g-list-free"><code class="function">g_list_free()</code></a>.</p> </div> </div> <hr> <div class="refsect2"> <a name="lu-cfg-read-single"></a><h3>lu_cfg_read_single ()</h3> <pre class="programlisting">const <span class="returnvalue">char</span> * lu_cfg_read_single (<em class="parameter"><code><span class="type">struct lu_context</span> *context</code></em>, <em class="parameter"><code>const <span class="type">char</span> *key</code></em>, <em class="parameter"><code>const <span class="type">char</span> *default_value</code></em>);</pre> <p>Read a single value set for a given key in the configuration space. This is a convenience function. Additional values, if any, will be ignored.</p> <div class="refsect3"> <a name="id-1.2.2.6.3.5"></a><h4>Parameters</h4> <div class="informaltable"><table 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>context</p></td> <td class="parameter_description"><p>A valid libuser library context.</p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>key</p></td> <td class="parameter_description"><p>The value to be read from the configuration. The key should be of the form "section/key" for most purposes. For example, the <span class="type">files</span> module uses keys of the form "files/foo" for all of its configuration data.</p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>default_value</p></td> <td class="parameter_description"><p>A default value to be returned in case none are found. Can be <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>.</p></td> <td class="parameter_annotations"> </td> </tr> </tbody> </table></div> </div> <div class="refsect3"> <a name="id-1.2.2.6.3.6"></a><h4>Returns</h4> <p> A string representation of one of the values set for the key. This string must not be freed.</p> </div> </div> <hr> <div class="refsect2"> <a name="lu-cfg-read-keys"></a><h3>lu_cfg_read_keys ()</h3> <pre class="programlisting"><a href="https://developer.gnome.org/glib/unstable/glib-Doubly-Linked-Lists.html#GList"><span class="returnvalue">GList</span></a> * lu_cfg_read_keys (<em class="parameter"><code><span class="type">struct lu_context</span> *context</code></em>, <em class="parameter"><code>const <span class="type">char</span> *parent_key</code></em>);</pre> <p>Read the names of all of the keys in a specified section of the configuration space. This function is typically used for walking the configuration space.</p> <div class="refsect3"> <a name="id-1.2.2.6.4.5"></a><h4>Parameters</h4> <div class="informaltable"><table 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>context</p></td> <td class="parameter_description"><p>A valid libuser library context.</p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>parent_key</p></td> <td class="parameter_description"><p>The parent key under which the caller wishes to know which subkeys are present.</p></td> <td class="parameter_annotations"> </td> </tr> </tbody> </table></div> </div> <div class="refsect3"> <a name="id-1.2.2.6.4.6"></a><h4>Returns</h4> <p> A <a href="https://developer.gnome.org/glib/unstable/glib-Doubly-Linked-Lists.html#GList"><span class="type">GList</span></a> of string representations of key names. The list must be freed using <a href="https://developer.gnome.org/glib/unstable/glib-Doubly-Linked-Lists.html#g-list-free"><code class="function">g_list_free()</code></a>.</p> </div> </div> </div> <div class="refsect1"> <a name="libuser-config.other_details"></a><h2>Types and Values</h2> </div> </div> <div class="footer"> <hr>Generated by GTK-Doc V1.24</div> </body> </html>