All pastes #901394 Raw Edit

Mine

public c v1 · immutable
·published 2008-02-12 16:58 UTC
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/*- * 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_ */