1 <?xml version='
1.0'
?> <!--*-nxml-*-->
2 <!DOCTYPE refentry PUBLIC
"-//OASIS//DTD DocBook XML V4.5//EN"
3 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
4 <!-- SPDX-License-Identifier: LGPL-2.1+ -->
6 <refentry id=
"sd_booted"
7 xmlns:
xi=
"http://www.w3.org/2001/XInclude">
10 <title>sd_booted
</title>
11 <productname>systemd
</productname>
15 <refentrytitle>sd_booted
</refentrytitle>
16 <manvolnum>3</manvolnum>
20 <refname>sd_booted
</refname>
21 <refpurpose>Test whether the system is running the systemd init system
</refpurpose>
26 <funcsynopsisinfo>#include
<systemd/sd-daemon.h
></funcsynopsisinfo>
29 <funcdef>int
<function>sd_booted
</function></funcdef>
30 <paramdef>void
</paramdef>
36 <title>Description
</title>
37 <para><function>sd_booted()
</function> checks whether the system
38 was booted up using the systemd init system.
</para>
42 <title>Return Value
</title>
44 <para>On failure, this call returns a negative errno-style error
45 code. If the system was booted up with systemd as init system,
46 this call returns a positive return value, zero otherwise.
</para>
52 <xi:include href=
"libsystemd-pkgconfig.xml" xpointer=
"pkgconfig-text"/>
54 <para>Internally, this function checks whether the directory
55 <filename>/run/systemd/system/
</filename> exists. A simple check
56 like this can also be implemented trivially in shell or any other
61 <title>See Also
</title>
63 <citerefentry><refentrytitle>systemd
</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
64 <citerefentry><refentrytitle>sd-daemon
</refentrytitle><manvolnum>3</manvolnum></citerefentry>