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 getrandom(2) kernel random number generator.

       Note that sd_id128_randomize() always returns a UUID Variant 1 Version
       4 compatible ID. It is hence guaranteed that this function will never
       return the ID consisting of all zero or all one bits (SD_ID128_NULL,
       SD_ID128_ALLF).

       For more information about the "sd_id128_t" type, see sd-id128(3).

       systemd-id128(1)'s new command 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
       These APIs are implemented as a shared library, which can be compiled
       and linked to with the libsystemd pkg-config(1) file.

SEE ALSO
       systemd(1), sd-id128(3), machine-id(5), getrandom(2), random(4),
       sd_id128_get_machine(3)

systemd 252                                              SD_ID128_RANDOMIZE(3)

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