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// Copyright 2012 The Chromium Authors
// 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 <nacl/nacl_random.h>
#include <stddef.h>
#include <stdint.h>
#include "base/check_op.h"
#include "base/containers/span.h"
namespace base {
void RandBytes(span<uint8_t> output) {
while (!output.empty()) {
size_t nread;
const int error = nacl_secure_random(output.data(), output.size(), &nread);
CHECK_EQ(error, 0);
CHECK_LE(nread, output.size());
output = output.subspan(nread);
}
}
void RandBytes(void* output, size_t output_length) {
RandBytes(make_span(static_cast<uint8_t*>(output), output_length));
}
} // namespace base
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