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