sd_booted3
Test whether the system is running the systemd init system
Usage
#include <systemd/sd-daemon.h>
int sd_booted(void);
Overview
sd_booted() checks whether the system was booted up using the systemd init system.
Return value
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.
Notes
Functions described here are available as a shared library, which can be compiled against and linked to with the libsystemd pkg-config(1) file.
Internally, this function checks whether the directory /run/systemd/system/ exists. A simple check like this can also be implemented trivially in shell or any other language.
Releases
8 releases since Debian 7 (Wheezy); the text changed 7 times.