rendered paste body/*- * Copyright (c) 2002 Thomas Moestl <tmm@FreeBSD.org> * 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: src/sys/sys/endian.h,v 1.6 2003/10/15 20:05:57 obrien Exp $ */#ifndef _SYS_ENDIAN_H_#define _SYS_ENDIAN_H_#include <sys/cdefs.h>#include <sys/_types.h>#include <machine/endian.h>#ifndef _UINT16_T_DECLAREDtypedef __uint16_t uint16_t;#define _UINT16_T_DECLARED#endif #ifndef _UINT32_T_DECLAREDtypedef __uint32_t uint32_t;#define _UINT32_T_DECLARED#endif #ifndef _UINT64_T_DECLAREDtypedef __uint64_t uint64_t;#define _UINT64_T_DECLARED#endif /* * 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 *//* Alignment-agnostic encode/decode bytestream to/from little/big endian. */static __inline uint16_tbe16dec(const void *pp){ unsigned char const *p = (unsigned char const *)pp; return ((p[0] << 8) | p[1]);}static __inline uint32_tbe32dec(const void *pp){ unsigned char const *p = (unsigned char const *)pp; return ((p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]);}static __inline uint64_tbe64dec(const void *pp){ unsigned char const *p = (unsigned char const *)pp; return (((uint64_t)be32dec(p) << 32) | be32dec(p + 4));}static __inline uint16_tle16dec(const void *pp){ unsigned char const *p = (unsigned char const *)pp; return ((p[1] << 8) | p[0]);}static __inline uint32_tle32dec(const void *pp){ unsigned char const *p = (unsigned char const *)pp; return ((p[3] << 24) | (p[2] << 16) | (p[1] << 8) | p[0]);}static __inline uint64_tle64dec(const void *pp){ unsigned char const *p = (unsigned char const *)pp; return (((uint64_t)le32dec(p + 4) << 32) | le32dec(p));}static __inline voidbe16enc(void *pp, uint16_t u){ unsigned char *p = (unsigned char *)pp; p[0] = (u >> 8) & 0xff; p[1] = u & 0xff;}static __inline voidbe32enc(void *pp, uint32_t u){ unsigned char *p = (unsigned char *)pp; p[0] = (u >> 24) & 0xff; p[1] = (u >> 16) & 0xff; p[2] = (u >> 8) & 0xff; p[3] = u & 0xff;}static __inline voidbe64enc(void *pp, uint64_t u){ unsigned char *p = (unsigned char *)pp; be32enc(p, u >> 32); be32enc(p + 4, u & 0xffffffff);}static __inline voidle16enc(void *pp, uint16_t u){ unsigned char *p = (unsigned char *)pp; p[0] = u & 0xff; p[1] = (u >> 8) & 0xff;}static __inline voidle32enc(void *pp, uint32_t u){ unsigned char *p = (unsigned char *)pp; p[0] = u & 0xff; p[1] = (u >> 8) & 0xff; p[2] = (u >> 16) & 0xff; p[3] = (u >> 24) & 0xff;}static __inline voidle64enc(void *pp, uint64_t u){ unsigned char *p = (unsigned char *)pp; le32enc(p, u & 0xffffffff); le32enc(p + 4, u >> 32);}#endif /* _SYS_ENDIAN_H_ */