122 lines
2.7 KiB
C
122 lines
2.7 KiB
C
/*
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* Public domain
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* endian.h compatibility shim
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*/
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#ifndef LIBCRYPTOCOMPAT_BYTE_ORDER_H_
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#define LIBCRYPTOCOMPAT_BYTE_ORDER_H_
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#if defined(_WIN32)
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#define LITTLE_ENDIAN 1234
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#define BIG_ENDIAN 4321
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#define PDP_ENDIAN 3412
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/*
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* Use GCC and Visual Studio compiler defines to determine endian.
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*/
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#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
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#define BYTE_ORDER LITTLE_ENDIAN
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#else
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#define BYTE_ORDER BIG_ENDIAN
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#endif
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#elif defined(HAVE_ENDIAN_H)
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#include_next <endian.h>
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#elif defined(HAVE_MACHINE_ENDIAN_H)
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#include_next <machine/endian.h>
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#elif defined(__sun) || defined(_AIX) || defined(__hpux)
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#include <sys/types.h>
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#include <arpa/nameser_compat.h>
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#elif defined(__sgi)
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#include <standards.h>
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#include <sys/endian.h>
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#endif
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#ifndef __STRICT_ALIGNMENT
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#define __STRICT_ALIGNMENT
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#if defined(__i386) || defined(__i386__) || \
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defined(__x86_64) || defined(__x86_64__) || \
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defined(__s390__) || defined(__s390x__) || \
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defined(__aarch64__) || \
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((defined(__arm__) || defined(__arm)) && __ARM_ARCH >= 6)
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#undef __STRICT_ALIGNMENT
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#endif
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#endif
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#if defined(__APPLE__) && !defined(HAVE_ENDIAN_H)
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#include <libkern/OSByteOrder.h>
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#define be16toh(x) OSSwapBigToHostInt16((x))
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#define htobe16(x) OSSwapHostToBigInt16((x))
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#define be32toh(x) OSSwapBigToHostInt32((x))
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#define htobe32(x) OSSwapHostToBigInt32(x)
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#define htole64(x) OSSwapHostToLittleInt64(x)
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#define htobe64(x) OSSwapHostToBigInt64(x)
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#define le64toh(x) OSSwapLittleToHostInt64(x)
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#define be64toh(x) OSSwapBigToHostInt64(x)
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#endif /* __APPLE__ && !HAVE_ENDIAN_H */
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#if defined(_WIN32) && !defined(HAVE_ENDIAN_H)
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#include <winsock2.h>
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#define be16toh(x) ntohs((x))
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#define htobe16(x) htons((x))
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#define be32toh(x) ntohl((x))
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#define htobe32(x) ntohl((x))
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#define be64toh(x) ntohll((x))
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#if !defined(ntohll)
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#define ntohll(x) ((1==htonl(1)) ? (x) : ((uint64_t)ntohl((x) & 0xFFFFFFFF) << 32) | ntohl((x) >> 32))
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#endif
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#if !defined(htonll)
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#define htonll(x) ((1==ntohl(1)) ? (x) : ((uint64_t)htonl((x) & 0xFFFFFFFF) << 32) | htonl((x) >> 32))
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#endif
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#define htobe64(x) ntohll((x))
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#endif /* _WIN32 && !HAVE_ENDIAN_H */
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#ifdef __linux__
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#if !defined(betoh16)
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#define betoh16 be16toh
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#endif
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#if !defined(betoh32)
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#define betoh32 be32toh
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#endif
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#if !defined(betoh64)
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#define betoh64 be64toh
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#endif
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#endif /* __linux__ */
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#if defined(__FreeBSD__)
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#if !defined(HAVE_ENDIAN_H)
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#include <sys/endian.h>
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#endif
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#if !defined(betoh16)
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#define betoh16 be16toh
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#endif
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#if !defined(betoh32)
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#define betoh32 be32toh
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#endif
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#if !defined(betoh64)
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#define betoh64 be64toh
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#endif
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#endif
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#if defined(__NetBSD__)
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#if !defined(betoh16)
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#define betoh16 be16toh
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#endif
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#if !defined(betoh32)
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#define betoh32 be32toh
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#endif
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#if !defined(betoh64)
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#define betoh64 be64toh
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#endif
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#endif
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#endif
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