| /* This Source Code Form is subject to the terms of the Mozilla Public |
| * License, v. 2.0. If a copy of the MPL was not distributed with this |
| * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| |
| /* This file holds useful functions and macros for crypto code. */ |
| |
| #ifdef FREEBL_NO_DEPEND |
| #include "stubs.h" |
| #endif |
| |
| #include <stdlib.h> |
| #include "prtypes.h" |
| |
| /* For non-clang platform */ |
| #ifndef __has_builtin |
| #define __has_builtin(x) 0 |
| #endif |
| |
| /* Unfortunately this isn't always set when it should be. */ |
| #if defined(HAVE_LONG_LONG) |
| |
| /* |
| * ROTR64/ROTL64(x, n): rotate a 64-bit integer x by n bites to the right/left. |
| */ |
| #if defined(_MSC_VER) |
| #pragma intrinsic(_rotr64, _rotl64) |
| #define ROTR64(x, n) _rotr64((x), (n)) |
| #define ROTL64(x, n) _rotl64((x), (n)) |
| #else |
| #define ROTR64(x, n) (((x) >> (n)) | ((x) << (64 - (n)))) |
| #define ROTL64(x, n) (((x) << (n)) | ((x) >> (64 - (n)))) |
| #endif |
| |
| /* |
| * FREEBL_HTONLL(x): swap bytes in a 64-bit integer. |
| */ |
| #if defined(IS_LITTLE_ENDIAN) |
| #if defined(_MSC_VER) |
| |
| #pragma intrinsic(_byteswap_uint64) |
| #define FREEBL_HTONLL(x) _byteswap_uint64(x) |
| |
| /* gcc doesn't have __has_builtin, but it does have __builtin_bswap64 */ |
| #elif __has_builtin(__builtin_bswap64) || (defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3))) |
| |
| #define FREEBL_HTONLL(x) __builtin_bswap64(x) |
| |
| #elif defined(__GNUC__) && (defined(__x86_64__) || defined(__x86_64)) |
| |
| PRUint64 swap8b(PRUint64 value); |
| #define FREEBL_HTONLL(x) swap8b(x) |
| |
| #else |
| |
| #define SHA_MASK16 0x0000FFFF0000FFFFULL |
| #define SHA_MASK8 0x00FF00FF00FF00FFULL |
| PRUint64 swap8b(PRUint64 x); |
| #define FREEBL_HTONLL(x) swap8b(x) |
| |
| #endif /* _MSC_VER */ |
| |
| #else /* IS_LITTLE_ENDIAN */ |
| #define FREEBL_HTONLL(x) (x) |
| #endif |
| |
| #endif /* HAVE_LONG_LONG */ |
