//
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// Copyright 2020 Staysail Systems, Inc. <info@staysail.tech>
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//
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// This software is supplied under the terms of the MIT License, a
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// copy of which should be located in the distribution where this
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// file was obtained (LICENSE.txt). A copy of the license may also be
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// found online at https://opensource.org/licenses/MIT.
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//
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#include "core/nng_impl.h"
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#ifdef NNG_PLATFORM_WINDOWS
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#ifndef _CRT_RAND_S
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#define _CRT_RAND_S
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#endif
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#include <stdlib.h>
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uint32_t
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nni_random(void)
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{
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unsigned val;
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// rand_s is claimed by Microsoft to generate cryptographically
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// secure numbers. It also is claimed that this will only fail
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// for EINVAL if val is NULL (not the case here). Other error
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// conditions might be possible, but we have no way to tell.
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// For now we just ignore that possibility.
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rand_s(&val);
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return ((uint32_t)val);
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}
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#endif // NNG_PLATFORM_WINDOWS
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