1 <?xml version='
1.0'
?> <!--*-nxml-*-->
2 <!DOCTYPE refentry PUBLIC
"-//OASIS//DTD DocBook XML V4.2//EN"
3 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
6 SPDX-License-Identifier: LGPL-2.1+
9 <refentry id=
"sd_booted"
10 xmlns:
xi=
"http://www.w3.org/2001/XInclude">
13 <title>sd_booted
</title>
14 <productname>systemd
</productname>
18 <contrib>Developer
</contrib>
19 <firstname>Lennart
</firstname>
20 <surname>Poettering
</surname>
21 <email>lennart@poettering.net
</email>
27 <refentrytitle>sd_booted
</refentrytitle>
28 <manvolnum>3</manvolnum>
32 <refname>sd_booted
</refname>
33 <refpurpose>Test whether the system is running the systemd init system
</refpurpose>
38 <funcsynopsisinfo>#include
<systemd/sd-daemon.h
></funcsynopsisinfo>
41 <funcdef>int
<function>sd_booted
</function></funcdef>
42 <paramdef>void
</paramdef>
48 <title>Description
</title>
49 <para><function>sd_booted()
</function> checks whether the system
50 was booted up using the systemd init system.
</para>
54 <title>Return Value
</title>
56 <para>On failure, this call returns a negative errno-style error
57 code. If the system was booted up with systemd as init system,
58 this call returns a positive return value, zero otherwise.
</para>
64 <xi:include href=
"libsystemd-pkgconfig.xml" xpointer=
"pkgconfig-text"/>
66 <para>Internally, this function checks whether the directory
67 <filename>/run/systemd/system/
</filename> exists. A simple check
68 like this can also be implemented trivially in shell or any other
73 <title>See Also
</title>
75 <citerefentry><refentrytitle>systemd
</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
76 <citerefentry><refentrytitle>sd-daemon
</refentrytitle><manvolnum>3</manvolnum></citerefentry>