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<span style="float:right">systemd 221</span><hr><div class="refentry"><a name="udev_list_entry"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>udev_list_entry, udev_list_entry_get_next, udev_list_entry_get_by_name, udev_list_entry_get_name, udev_list_entry_get_value — Iterate and access udev lists</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><div class="funcsynopsis"><pre class="funcsynopsisinfo">#include <libudev.h></pre><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">struct udev_list_entry *<b class="fsfunc">udev_list_entry_get_next</b>(</code></td><td>struct udev_list_entry *<var class="pdparam">list_entry</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">struct udev_list_entry *<b class="fsfunc">udev_list_entry_get_by_name</b>(</code></td><td>struct udev_list_entry *<var class="pdparam">list_entry</var>, </td></tr><tr><td> </td><td>const char *<var class="pdparam">name</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">const char *<b class="fsfunc">udev_list_entry_get_name</b>(</code></td><td>struct udev_list_entry *<var class="pdparam">list_entry</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">const char *<b class="fsfunc">udev_list_entry_get_value</b>(</code></td><td>struct udev_list_entry *<var class="pdparam">list_entry</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div></div></div><div class="refsect1"><a name="idm47066687746624"></a><h2 id="Return Value">Return Value<a class="headerlink" title="Permalink to this headline" href="#Return%20Value">¶</a></h2><p>On success,
<code class="function">udev_list_entry_get_next()</code> and
<code class="function">udev_list_entry_get_by_name()</code> return
a pointer to the requested list entry. If no such entry can
be found, or on failure, <code class="constant">NULL</code> is
returned.</p><p>On success,
<code class="function">udev_list_entry_get_name()</code> and
<code class="function">udev_list_entry_get_value()</code> return a
pointer to a constant string representing the requested value.
The string is bound to the lifetime of the list-entry itself.
On failure, <code class="constant">NULL</code> is returned.</p></div><div class="refsect1"><a name="idm47066683086528"></a><h2 id="See Also">See Also<a class="headerlink" title="Permalink to this headline" href="#See%20Also">¶</a></h2><p>
<a href="udev_new.html"><span class="citerefentry"><span class="refentrytitle">udev_new</span>(3)</span></a>,
<a href="udev_device_new_from_syspath.html"><span class="citerefentry"><span class="refentrytitle">udev_device_new_from_syspath</span>(3)</span></a>,
<a href="udev_enumerate_new.html"><span class="citerefentry"><span class="refentrytitle">udev_enumerate_new</span>(3)</span></a>,
<a href="udev_monitor_new_from_netlink.html"><span class="citerefentry"><span class="refentrytitle">udev_monitor_new_from_netlink</span>(3)</span></a>,
<a href="systemd.html"><span class="citerefentry"><span class="refentrytitle">systemd</span>(1)</span></a>,
</p></div></div></body></html>
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