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Side by Side Diff: crypto/encryptor.cc

Issue 8949026: Move net/base/sys_byteorder.h to base/sys_byteorder.h (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Once more, with feeling Created 9 years ago
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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2011 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 "crypto/encryptor.h" 5 #include "crypto/encryptor.h"
6 6
7 #include "base/logging.h" 7 #include "base/logging.h"
8 #include "build/build_config.h" 8 #include "base/sys_byteorder.h"
9
10 // Include headers to provide bswap for all platforms.
11 #if defined(COMPILER_MSVC)
12 #include <stdlib.h>
13 #define bswap_16(x) _byteswap_ushort(x)
14 #define bswap_32(x) _byteswap_ulong(x)
15 #define bswap_64(x) _byteswap_uint64(x)
16 #elif defined(OS_MACOSX)
17 #include <libkern/OSByteOrder.h>
18 #define bswap_16(x) OSSwapInt16(x)
19 #define bswap_32(x) OSSwapInt32(x)
20 #define bswap_64(x) OSSwapInt64(x)
21 #elif defined(OS_OPENBSD)
22 #include <sys/endian.h>
23 #define bswap_16(x) swap16(x)
24 #define bswap_32(x) swap32(x)
25 #define bswap_64(x) swap64(x)
26 #else
27 #include <byteswap.h>
28 #endif
29
30 #if defined(ARCH_CPU_LITTLE_ENDIAN)
31 #define ntoh_64(x) bswap_64(x)
32 #define hton_64(x) bswap_64(x)
33 #else
34 #define ntoh_64(x) (x)
35 #define hton_64(x) (x)
36 #endif
37 9
38 namespace crypto { 10 namespace crypto {
39 11
40 ///////////////////////////////////////////////////////////////////////////// 12 /////////////////////////////////////////////////////////////////////////////
41 // Encyptor::Counter Implementation. 13 // Encyptor::Counter Implementation.
42 Encryptor::Counter::Counter(const base::StringPiece& counter) { 14 Encryptor::Counter::Counter(const base::StringPiece& counter) {
43 CHECK(sizeof(counter_) == counter.length()); 15 CHECK(sizeof(counter_) == counter.length());
44 16
45 memcpy(&counter_, counter.data(), sizeof(counter_)); 17 memcpy(&counter_, counter.data(), sizeof(counter_));
46 } 18 }
(...skipping 69 matching lines...) Expand 10 before | Expand all | Expand 10 after
116 DCHECK_EQ(CTR, mode_); 88 DCHECK_EQ(CTR, mode_);
117 const uint8* plaintext_ptr = reinterpret_cast<const uint8*>(plaintext); 89 const uint8* plaintext_ptr = reinterpret_cast<const uint8*>(plaintext);
118 const uint8* mask_ptr = reinterpret_cast<const uint8*>(mask); 90 const uint8* mask_ptr = reinterpret_cast<const uint8*>(mask);
119 uint8* ciphertext_ptr = reinterpret_cast<uint8*>(ciphertext); 91 uint8* ciphertext_ptr = reinterpret_cast<uint8*>(ciphertext);
120 92
121 for (size_t i = 0; i < plaintext_len; ++i) 93 for (size_t i = 0; i < plaintext_len; ++i)
122 ciphertext_ptr[i] = plaintext_ptr[i] ^ mask_ptr[i]; 94 ciphertext_ptr[i] = plaintext_ptr[i] ^ mask_ptr[i];
123 } 95 }
124 96
125 } // namespace crypto 97 } // namespace crypto
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