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//
// Copyright 2017 Garrett D'Amore <garrett@damore.org>
//
// This software is supplied under the terms of the MIT License, a
// copy of which should be located in the distribution where this
// file was obtained (LICENSE.txt). A copy of the license may also be
// found online at https://opensource.org/licenses/MIT.
//
#include "core/nng_impl.h"
#ifdef PLATFORM_WINDOWS
#include <stdlib.h>
void
nni_plat_seed_prng(void *buf, size_t bufsz)
{
unsigned val;
// The rand_s routine uses RtlGenRandom to get high quality
// pseudo random numbers (i.e. numbers that should be good enough
// for use with crypto keying.)
while (bufsz > sizeof (val)) {
rand_s(&val);
memcpy(buf, &val, sizeof (val));
buf = (((char *) buf) + sizeof (val));
bufsz -= sizeof (val);
}
}
#else
// Suppress empty symbols warnings in ranlib.
int nni_win_rand_not_used = 0;
#endif // PLATFORM_WINDOWS
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