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Side by Side Diff: base/rand_util_nacl.cc

Issue 1538743002: Switch to standard integer types in base/. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: DEPS roll too Created 4 years, 12 months ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "base/rand_util.h" 5 #include "base/rand_util.h"
6 6
7 #include <nacl/nacl_random.h> 7 #include <nacl/nacl_random.h>
8 #include <stddef.h>
9 #include <stdint.h>
8 10
9 #include "base/basictypes.h"
10 #include "base/logging.h" 11 #include "base/logging.h"
11 12
12 namespace { 13 namespace {
13 14
14 void GetRandomBytes(void* output, size_t num_bytes) { 15 void GetRandomBytes(void* output, size_t num_bytes) {
15 char* output_ptr = static_cast<char*>(output); 16 char* output_ptr = static_cast<char*>(output);
16 while (num_bytes > 0) { 17 while (num_bytes > 0) {
17 size_t nread; 18 size_t nread;
18 const int error = nacl_secure_random(output_ptr, num_bytes, &nread); 19 const int error = nacl_secure_random(output_ptr, num_bytes, &nread);
19 CHECK_EQ(error, 0); 20 CHECK_EQ(error, 0);
20 CHECK_LE(nread, num_bytes); 21 CHECK_LE(nread, num_bytes);
21 output_ptr += nread; 22 output_ptr += nread;
22 num_bytes -= nread; 23 num_bytes -= nread;
23 } 24 }
24 } 25 }
25 26
26 } // namespace 27 } // namespace
27 28
28 namespace base { 29 namespace base {
29 30
30 // NOTE: This function must be cryptographically secure. http://crbug.com/140076 31 // NOTE: This function must be cryptographically secure. http://crbug.com/140076
31 uint64 RandUint64() { 32 uint64_t RandUint64() {
32 uint64 result; 33 uint64_t result;
33 GetRandomBytes(&result, sizeof(result)); 34 GetRandomBytes(&result, sizeof(result));
34 return result; 35 return result;
35 } 36 }
36 37
37 void RandBytes(void* output, size_t output_length) { 38 void RandBytes(void* output, size_t output_length) {
38 GetRandomBytes(output, output_length); 39 GetRandomBytes(output, output_length);
39 } 40 }
40 41
41 } // namespace base 42 } // namespace base
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