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- /* <MIT License>
- Copyright (c) 2013-2014 Marek Majkowski <marek@popcount.org>
- Permission is hereby granted, free of charge, to any person obtaining a copy
- of this software and associated documentation files (the "Software"), to deal
- in the Software without restriction, including without limitation the rights
- to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- copies of the Software, and to permit persons to whom the Software is
- furnished to do so, subject to the following conditions:
- The above copyright notice and this permission notice shall be included in
- all copies or substantial portions of the Software.
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- THE SOFTWARE.
- </MIT License>
- Original location:
- https://github.com/majek/csiphash/
- Solution inspired by code from:
- Samuel Neves (supercop/crypto_auth/siphash24/little)
- djb (supercop/crypto_auth/siphash24/little2)
- Jean-Philippe Aumasson (https://131002.net/siphash/siphash24.c)
- */
- #ifdef HAVE_SYS_PARAM_H
- #include <sys/param.h>
- #endif
- /* This code is extracted from csiphash.h */
- #if defined(__BYTE_ORDER__) && defined(__ORDER_LITTLE_ENDIAN__) && \
- __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
- # define _le64toh(x) ((uint64_t)(x))
- #elif defined(_WIN32)
- /* Windows is always little endian, unless you're on xbox360
- http://msdn.microsoft.com/en-us/library/b0084kay(v=vs.80).aspx */
- # define _le64toh(x) ((uint64_t)(x))
- #elif defined(__APPLE__)
- # include <libkern/OSByteOrder.h>
- # define _le64toh(x) OSSwapLittleToHostInt64(x)
- #elif defined(sun) || defined(__sun)
- # include <sys/byteorder.h>
- # define _le64toh(x) LE_64(x)
- #else
- /* See: http://sourceforge.net/p/predef/wiki/Endianness/ */
- # if defined(__FreeBSD__) || defined(__NetBSD__) || defined(OpenBSD)
- # include <sys/endian.h>
- # else
- # include <endian.h>
- # endif
- # if defined(__BYTE_ORDER) && defined(__LITTLE_ENDIAN) && \
- __BYTE_ORDER == __LITTLE_ENDIAN
- # define _le64toh(x) ((uint64_t)(x))
- # else
- # if defined(OpenBSD)
- # define _le64toh(x) letoh64(x)
- # else
- # define _le64toh(x) le64toh(x)
- # endif
- # endif
- #endif
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