| /*- |
| * Copyright (c) 2002 Thomas Moestl <[email protected]> |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * |
| * $FreeBSD$ |
| */ |
| |
| #ifndef _SYS_ENDIAN_H_ |
| #define _SYS_ENDIAN_H_ |
| |
| #include <sys/cdefs.h> |
| #include <stdint.h> |
| |
| /* |
| * General byte order swapping functions. |
| */ |
| #define bswap16(x) __bswap16(x) |
| #define bswap32(x) __bswap32(x) |
| #define bswap64(x) __bswap64(x) |
| |
| /* |
| * Host to big endian, host to little endian, big endian to host, and little |
| * endian to host byte order functions as detailed in byteorder(9). |
| */ |
| #if _BYTE_ORDER == _LITTLE_ENDIAN |
| #define htobe16(x) bswap16((x)) |
| #define htobe32(x) bswap32((x)) |
| #define htobe64(x) bswap64((x)) |
| #define htole16(x) ((uint16_t)(x)) |
| #define htole32(x) ((uint32_t)(x)) |
| #define htole64(x) ((uint64_t)(x)) |
| |
| #define be16toh(x) bswap16((x)) |
| #define be32toh(x) bswap32((x)) |
| #define be64toh(x) bswap64((x)) |
| #define le16toh(x) ((uint16_t)(x)) |
| #define le32toh(x) ((uint32_t)(x)) |
| #define le64toh(x) ((uint64_t)(x)) |
| #else /* _BYTE_ORDER != _LITTLE_ENDIAN */ |
| #define htobe16(x) ((uint16_t)(x)) |
| #define htobe32(x) ((uint32_t)(x)) |
| #define htobe64(x) ((uint64_t)(x)) |
| #define htole16(x) bswap16((x)) |
| #define htole32(x) bswap32((x)) |
| #define htole64(x) bswap64((x)) |
| |
| #define be16toh(x) ((uint16_t)(x)) |
| #define be32toh(x) ((uint32_t)(x)) |
| #define be64toh(x) ((uint64_t)(x)) |
| #define le16toh(x) bswap16((x)) |
| #define le32toh(x) bswap32((x)) |
| #define le64toh(x) bswap64((x)) |
| #endif /* _BYTE_ORDER == _LITTLE_ENDIAN */ |
| |
| /* |
| * The generic encoding and decoding functions have been removed since they're |
| * rarely used and generate suboptimal code on platforms that allow unaligned |
| * accesses |
| */ |
| |
| #endif /* _SYS_ENDIAN_H_ */ |
