SD_ID128_RANDOMIZE(3) sd_id128_randomize SD_ID128_RANDOMIZE(3)
NAME
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() generates a new randomized 128-bit ID and returns it in ret. Every invocation returns a new randomly generated ID.
This uses the /dev/urandom kernel random number generator.
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-id128" pkg-
config(1) file.
SEE ALSO
systemd(1), sd-id128(3), machine-id(5), random(4), sd_id128_get_machine(3)
systemd 208 SD_ID128_RANDOMIZE(3)
