mirror of
https://github.com/klzgrad/naiveproxy.git
synced 2024-11-28 08:16:09 +03:00
39 lines
1.1 KiB
C++
39 lines
1.1 KiB
C++
|
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
|
||
|
|
// Use of this source code is governed by a BSD-style license that can be
|
||
|
|
// found in the LICENSE file.
|
||
|
|
|
||
|
|
#include "base/rand_util.h"
|
||
|
|
|
||
|
|
#include <windows.h>
|
||
|
|
#include <stddef.h>
|
||
|
|
#include <stdint.h>
|
||
|
|
|
||
|
|
// #define needed to link in RtlGenRandom(), a.k.a. SystemFunction036. See the
|
||
|
|
// "Community Additions" comment on MSDN here:
|
||
|
|
// http://msdn.microsoft.com/en-us/library/windows/desktop/aa387694.aspx
|
||
|
|
#define SystemFunction036 NTAPI SystemFunction036
|
||
|
|
#include <NTSecAPI.h>
|
||
|
|
#undef SystemFunction036
|
||
|
|
|
||
|
|
#include <algorithm>
|
||
|
|
#include <limits>
|
||
|
|
|
||
|
|
#include "base/logging.h"
|
||
|
|
|
||
|
|
namespace base {
|
||
|
|
|
||
|
|
void RandBytes(void* output, size_t output_length) {
|
||
|
|
char* output_ptr = static_cast<char*>(output);
|
||
|
|
while (output_length > 0) {
|
||
|
|
const ULONG output_bytes_this_pass = static_cast<ULONG>(std::min(
|
||
|
|
output_length, static_cast<size_t>(std::numeric_limits<ULONG>::max())));
|
||
|
|
const bool success =
|
||
|
|
RtlGenRandom(output_ptr, output_bytes_this_pass) != FALSE;
|
||
|
|
CHECK(success);
|
||
|
|
output_length -= output_bytes_this_pass;
|
||
|
|
output_ptr += output_bytes_this_pass;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
} // namespace base
|