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endian.h
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/*
* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
* Copyright (C) Natalia Portillo
*
* 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/.
*
* See the COPYRIGHT file distributed with this work for additional
* information regarding copyright ownership.
*/
#ifndef AARUREMOTE__ENDIAN_H_
#define AARUREMOTE__ENDIAN_H_
#if HAVE_ENDIAN_H
#include <endian.h>
#else
#define __LITTLE_ENDIAN 1234
#define __BIG_ENDIAN 4321
#ifndef __BYTE_ORDER
#define __BYTE_ORDER __LITTLE_ENDIAN
#endif
#ifndef bswap_16
#define bswap_16(x) ((uint16_t)((((uint16_t)(x)&0xff00) >> 8) | (((uint16_t)(x)&0x00ff) << 8)))
#endif /* !bswap_16 */
#ifndef bswap_32
#define bswap_32(x) \
((uint32_t)((((uint32_t)(x)&0xff000000) >> 24) | (((uint32_t)(x)&0x00ff0000) >> 8) | \
(((uint32_t)(x)&0x0000ff00) << 8) | (((uint32_t)(x)&0x000000ff) << 24)))
#endif /* !bswap_32 */
#ifndef bswap_64
#define bswap_64(x) \
((uint64_t)((((uint64_t)(x)&0xff00000000000000ULL) >> 56) | (((uint64_t)(x)&0x00ff000000000000ULL) >> 40) | \
(((uint64_t)(x)&0x0000ff0000000000ULL) >> 24) | (((uint64_t)(x)&0x000000ff00000000ULL) >> 8) | \
(((uint64_t)(x)&0x00000000ff000000ULL) << 8) | (((uint64_t)(x)&0x0000000000ff0000ULL) << 24) | \
(((uint64_t)(x)&0x000000000000ff00ULL) << 40) | (((uint64_t)(x)&0x00000000000000ffULL) << 56)))
#endif /* !bswap_64 */
#ifndef htobe16
#if __BYTE_ORDER == __BIG_ENDIAN
#define htobe16(x) (x)
#define htole16(x) bswap_16(x)
#define be16toh(x) (x)
#define le16toh(x) bswap_16(x)
#else /* __BYTE_ORDER == __BIG_ENDIAN */
#define htobe16(x) bswap_16(x)
#define htole16(x) (x)
#define be16toh(x) bswap_16(x)
#define le16toh(x) (x)
#endif /* __BYTE_ORDER == __BIG_ENDIAN */
#endif /* !htobe16 */
#ifndef htobe32
#if __BYTE_ORDER == __BIG_ENDIAN
#define htobe32(x) (x)
#define htole32(x) bswap_32(x)
#define be32toh(x) (x)
#define le32toh(x) bswap_32(x)
#else /* __BYTE_ORDER == __BIG_ENDIAN */
#define htobe32(x) bswap_32(x)
#define htole32(x) (x)
#define be32toh(x) bswap_32(x)
#define le32toh(x) (x)
#endif /* __BYTE_ORDER == __BIG_ENDIAN */
#endif /* !htobe32 */
#ifndef htobe64
#if __BYTE_ORDER == __BIG_ENDIAN
#define htobe64(x) (x)
#define htole64(x) bswap_64(x)
#define be64toh(x) (x)
#define le64toh(x) bswap_64(x)
#else /* __BYTE_ORDER == __BIG_ENDIAN */
#define htobe64(x) bswap_64(x)
#define htole64(x) (x)
#define be64toh(x) bswap_64(x)
#define le64toh(x) (x)
#endif /* __BYTE_ORDER == __BIG_ENDIAN */
#endif /* !htobe64 */
#endif
#endif // AARUREMOTE__ENDIAN_H_