centos man page for sd_id128_randomize

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)