sd_id128_randomize(3) — Linux manual page

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | NOTES | SEE ALSO | COLOPHON

SD_ID128_RANDOMIZE(3)        sd_id128_randomize        SD_ID128_RANDOMIZE(3)

NAME         top

       sd_id128_randomize - Generate 128-bit IDs

SYNOPSIS         top

       #include <systemd/sd-id128.h>

       int sd_id128_randomize(sd_id128_t *ret);

DESCRIPTION         top

       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).

       systemd-id128(1)'s new command may be used as a command line
       front-end for sd_id128_randomize().

RETURN VALUE         top

       The call returns 0 on success (in which case ret is filled in), or a
       negative errno-style error code.

NOTES         top

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

SEE ALSO         top

       systemd(1), sd-id128(3), machine-id(5), random(4),
       sd_id128_get_machine(3)

COLOPHON         top

       This page is part of the systemd (systemd system and service manager)
       project.  Information about the project can be found at 
       ⟨http://www.freedesktop.org/wiki/Software/systemd⟩.  If you have a bug
       report for this manual page, see
       ⟨http://www.freedesktop.org/wiki/Software/systemd/#bugreports⟩.  This
       page was obtained from the project's upstream Git repository
       ⟨https://github.com/systemd/systemd.git⟩ on 2020-06-09.  (At that
       time, the date of the most recent commit that was found in the repos‐
       itory was 2020-06-09.)  If you discover any rendering problems in
       this HTML version of the page, or you believe there is a better or
       more up-to-date source for the page, or you have corrections or
       improvements to the information in this COLOPHON (which is not part
       of the original manual page), send a mail to man-pages@man7.org

systemd 245                                            SD_ID128_RANDOMIZE(3)

Pages that refer to this page: sd_bus_get_bus_id(3)sd_bus_is_bus_client(3)sd_bus_is_monitor(3)sd_bus_is_server(3)sd_bus_set_bus_client(3)sd_bus_set_monitor(3)sd_bus_set_server(3)sd-id128(3)sd_id128_const_str(3)SD_ID128_CONST_STR(3)sd_id128_equal(3)sd_id128_format_str(3)SD_ID128_FORMAT_STR(3)sd_id128_format_val(3)SD_ID128_FORMAT_VAL(3)sd_id128_get_boot(3)sd_id128_get_boot_app_specific(3)sd_id128_get_invocation(3)sd_id128_get_machine(3)sd_id128_get_machine_app_specific(3)sd_id128_is_null(3)sd_id128_make(3)SD_ID128_MAKE(3)sd_id128_make_str(3)SD_ID128_MAKE_STR(3)sd_id128_null(3)SD_ID128_NULL(3)sd_id128_t(3)sd_id128_uuid_format_str(3)SD_ID128_UUID_FORMAT_STR(3)30-systemd-environment-d-generator(7)systemd.directives(7)systemd.index(7)