1SD_ID128_RANDOMIZE(3)         sd_id128_randomize         SD_ID128_RANDOMIZE(3)
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NAME

6       sd_id128_randomize - Generate 128-bit IDs
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SYNOPSIS

9       #include <systemd/sd-id128.h>
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11       int sd_id128_randomize(sd_id128_t *ret);
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DESCRIPTION

14       sd_id128_randomize() generates a new randomized 128-bit ID and returns
15       it in ret. Every invocation returns a new randomly generated ID. This
16       uses the /dev/urandom kernel random number generator.
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18       Note that sd_id128_randomize() always returns a UUID Variant 1 Version
19       4 compatible ID. It is hence guaranteed that this function will never
20       return the ID consisting of all zero or all one bits (SD_ID128_NULL,
21       SD_ID128_ALLF).
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23       For more information about the "sd_id128_t" type, see sd-id128(3).
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25       systemd-id128(1)'s new command may be used as a command line front-end
26       for sd_id128_randomize().
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RETURN VALUE

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

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

37       systemd(1), sd-id128(3), machine-id(5), random(4),
38       sd_id128_get_machine(3)
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42systemd 249                                              SD_ID128_RANDOMIZE(3)
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