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//
// Copyright 2020 Staysail Systems, Inc. <info@staysail.tech>
//
// 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 NNG_PLATFORM_WINDOWS
#ifndef _CRT_RAND_S
#define _CRT_RAND_S
#endif
#include <stdlib.h>
uint32_t
nni_random(void)
{
unsigned val;
// rand_s is claimed by Microsoft to generate cryptographically
// secure numbers. It also is claimed that this will only fail
// for EINVAL if val is NULL (not the case here). Other error
// conditions might be possible, but we have no way to tell.
// For now we just ignore that possibility.
rand_s(&val);
return ((uint32_t)val);
}
#endif // NNG_PLATFORM_WINDOWS
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