sd_id128_randomize — Generate 128-bit IDs
#include <systemd/sd-id128.h>
int sd_id128_randomize( | sd_id128_t *ret); |
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().
The call returns 0 on success (in which case
ret is filled in), or a negative
errno-style error code.
The sd_id128_randomize() interface is
available as a shared library, which can be compiled and linked to
with the
"libsystemd" pkg-config(1)
file.