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   sd_id128_randomize    ( 3 )

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Имя (Name)

sd_id128_randomize - Generate 128-bit IDs

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Синопсис (Synopsis)

#include <systemd/sd-id128.h>

       int sd_id128_randomize(sd_id128_t *ret);

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Описание (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().

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Возвращаемое значение (Return value)

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

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Примечание (Note)

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

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Смотри также (See also)

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

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