1/* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 * 21 * $FreeBSD$ 22 */ 23 24/* 25 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 26 * Use is subject to license terms. 27 */ 28 29/* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */ 30/* All Rights Reserved */ 31 32/* 33 * University Copyright- Copyright (c) 1982, 1986, 1988 34 * The Regents of the University of California 35 * All Rights Reserved 36 * 37 * University Acknowledgment- Portions of this document are derived from 38 * software developed by the University of California, Berkeley, and its 39 * contributors. 40 */ 41 42#ifndef _OPENSOLARIS_SYS_BYTEORDER_H_ 43#define _OPENSOLARIS_SYS_BYTEORDER_H_ 44 45/* for htonl() */ 46#ifndef _KERNEL 47#include <netinet/in.h> 48#endif 49 50/* 51 * Macros to reverse byte order 52 */ 53#define BSWAP_8(x) ((x) & 0xff) 54#define BSWAP_16(x) ((BSWAP_8(x) << 8) | BSWAP_8((x) >> 8)) 55#define BSWAP_32(x) ((BSWAP_16(x) << 16) | BSWAP_16((x) >> 16)) 56#define BSWAP_64(x) ((BSWAP_32(x) << 32) | BSWAP_32((x) >> 32)) 57 58#define BMASK_8(x) ((x) & 0xff) 59#define BMASK_16(x) ((x) & 0xffff) 60#define BMASK_32(x) ((x) & 0xffffffff) 61#define BMASK_64(x) (x) 62 63/* 64 * Macros to convert from a specific byte order to/from native byte order 65 */ 66#if _BYTE_ORDER == _BIG_ENDIAN 67#define BE_8(x) BMASK_8(x) 68#define BE_16(x) BMASK_16(x) 69#define BE_32(x) BMASK_32(x) 70#define BE_64(x) BMASK_64(x) 71#define LE_8(x) BSWAP_8(x) 72#define LE_16(x) BSWAP_16(x) 73#define LE_32(x) BSWAP_32(x) 74#define LE_64(x) BSWAP_64(x) 75#else 76#define LE_8(x) BMASK_8(x) 77#define LE_16(x) BMASK_16(x) 78#define LE_32(x) BMASK_32(x) 79#define LE_64(x) BMASK_64(x) 80#define BE_8(x) BSWAP_8(x) 81#define BE_16(x) BSWAP_16(x) 82#define BE_32(x) BSWAP_32(x) 83#define BE_64(x) BSWAP_64(x) 84#endif 85 86#if _BYTE_ORDER == _BIG_ENDIAN 87#define htonll(x) BMASK_64(x) 88#define ntohll(x) BMASK_64(x) 89#else 90#define htonll(x) BSWAP_64(x) 91#define ntohll(x) BSWAP_64(x) 92#endif 93 94#define BE_IN32(xa) htonl(*((uint32_t *)(void *)(xa))) 95 96#endif /* _OPENSOLARIS_SYS_BYTEORDER_H_ */ 97