sd_id128_randomize (3) Linux Manual Page
sd_id128_randomize – Generate 128-bit IDs
Synopsis
#include <systemd/sd-id128.h>
int sd_id128_randomize(sd_id128_t *ret);Description
sd_id128_randomize()
Note that sd_id128_randomize() always returns a UUID v4-compatible ID.
For more information about the "sd_id128_t" type, see sd-id128(3).
journalctl(1)’s –new-id option may be used as a command line front-end for sd_id128_randomize().
Return Value
The call returns 0 on success (in which case ret is filled in), or a negative errno-style error code.
Notes
The sd_id128_randomize() interface is available as a shared library, which can be compiled and linked to with the "libsystemd"
See Also
systemd(1), sd-id128(3), machine-id(5), random(4), sd_id128_get_machine(3)