/*
 * Copyright (C) Google, Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY GOOGLE, INC. ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
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 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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 */

#ifndef WTF_OSRandomSource_h
#define WTF_OSRandomSource_h

namespace WTF {

// This function attempts to fill buffer with randomness from the operating
// system.  If insufficient randomness is available, the buffer will be
// partially filled.  Rather than calling this function directly, consider
// calling cryptographicallyRandomNumber or cryptographicallyRandomValues.
void cryptographicallyRandomValuesFromOS(unsigned char* buffer, size_t length);
}

#endif