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@deftypefun {int} {gnutls_rnd} (gnutls_rnd_level_t @var{level}, void * @var{data}, size_t @var{len})
@var{level}: a security level
@var{data}: place to store random bytes
@var{len}: The requested size
This function will generate random data and store it to output
buffer. The value of @code{level} should be one of @code{GNUTLS_RND_NONCE} ,
@code{GNUTLS_RND_RANDOM} and @code{GNUTLS_RND_KEY} . See the manual and
@code{gnutls_rnd_level_t} for detailed information.
This function is thread-safe and also fork-safe.
@strong{Returns:} Zero on success, or a negative error code on error.
@strong{Since:} 2.12.0
@end deftypefun
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