ladybird/AK/Random.h
Brian Gianforcaro 1682f0b760 Everything: Move to SPDX license identifiers in all files.
SPDX License Identifiers are a more compact / standardized
way of representing file license information.

See: https://spdx.dev/resources/use/#identifiers

This was done with the `ambr` search and replace tool.

 ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
2021-04-22 11:22:27 +02:00

47 lines
816 B
C++

/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Platform.h>
#include <AK/Types.h>
#if defined(__serenity__)
# include <stdlib.h>
#endif
#if defined(__unix__)
# include <unistd.h>
#endif
#if defined(__APPLE__)
# include <sys/random.h>
#endif
namespace AK {
inline void fill_with_random([[maybe_unused]] void* buffer, [[maybe_unused]] size_t length)
{
#if defined(__serenity__)
arc4random_buf(buffer, length);
#elif defined(OSS_FUZZ)
#elif defined(__unix__) or defined(__APPLE__)
[[maybe_unused]] int rc = getentropy(buffer, length);
#endif
}
template<typename T>
inline T get_random()
{
T t;
fill_with_random(&t, sizeof(T));
return t;
}
}
using AK::fill_with_random;
using AK::get_random;