table of contents
- bookworm 252.30-1~deb12u2
- bookworm-backports 254.16-1~bpo12+1
- testing 256.7-2
- unstable 256.7-3
SD_BOOTED(3) | sd_booted | SD_BOOTED(3) |
NAME¶
sd_booted - Test whether the system is running the systemd init system
SYNOPSIS¶
#include <systemd/sd-daemon.h>
int sd_booted(void);
DESCRIPTION¶
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¶
These APIs are implemented as a shared library, which can be compiled 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.
SEE ALSO¶
systemd 252 |