man/sd_booted.html


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  <span style="float:right">systemd 221</span><hr><div class="refentry"><a name="sd_booted"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>sd_booted — Test whether the system is running the systemd init system</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><div class="funcsynopsis"><pre class="funcsynopsisinfo">#include &lt;systemd/sd-daemon.h&gt;</pre><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">int <b class="fsfunc">sd_booted</b>(</code></td><td>void<code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div></div></div><div class="refsect1"><a name="idm47152847950960"></a><h2 id="Description">Description<a class="headerlink" title="Permalink to this headline" href="#Description">¶</a></h2><p><code class="function">sd_booted()</code> checks whether the system
    was booted up using the systemd init system.</p></div><div class="refsect1"><a name="idm47152847949328"></a><h2 id="Return Value">Return Value<a class="headerlink" title="Permalink to this headline" href="#Return%20Value">¶</a></h2><p>On failure, this call returns a negative errno-style error
    code. If the system was booted up with systemd as init system,
    this call returns a positive return value, zero otherwise.</p></div><div class="refsect1"><a name="idm47152843047328"></a><h2 id="Notes">Notes<a class="headerlink" title="Permalink to this headline" href="#Notes">¶</a></h2><p><a name="pkgconfig-text"></a>These APIs are implemented as a shared
  library, which can be compiled and linked to with the
  <code class="constant">libsystemd</code> <a href="http://linux.die.net/man/1/pkg-config"><span class="citerefentry"><span class="refentrytitle">pkg-config</span>(1)</span></a>
  file.</p><p>Internally, this function checks whether the directory
    <code class="filename">/run/systemd/system/</code> exists. A simple check
    like this can also be implemented trivially in shell or any other
    language.</p></div><div class="refsect1"><a name="idm47152843044688"></a><h2 id="See Also">See Also<a class="headerlink" title="Permalink to this headline" href="#See%20Also">¶</a></h2><p>
      <a href="systemd.html"><span class="citerefentry"><span class="refentrytitle">systemd</span>(1)</span></a>,
      <a href="sd-daemon.html"><span class="citerefentry"><span class="refentrytitle">sd-daemon</span>(3)</span></a>
    </p></div></div></body></html>