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 22 /* 23 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */ 28 /* All Rights Reserved */ 29 30 /* 31 * University Copyright- Copyright (c) 1982, 1986, 1988 32 * The Regents of the University of California 33 * All Rights Reserved 34 * 35 * University Acknowledgment- Portions of this document are derived from 36 * software developed by the University of California, Berkeley, and its 37 * contributors. 38 */ 39 40 #ifndef _OPENSOLARIS_SYS_BYTEORDER_H_ 41 #define _OPENSOLARIS_SYS_BYTEORDER_H_ 42 43 /* for htonl() */ 44 #ifndef _KERNEL 45 #include <netinet/in.h> 46 #endif 47 48 /* 49 * Macros to reverse byte order 50 */ 51 #define BSWAP_8(x) ((x) & 0xff) 52 #define BSWAP_16(x) ((BSWAP_8(x) << 8) | BSWAP_8((x) >> 8)) 53 #define BSWAP_32(x) ((BSWAP_16(x) << 16) | BSWAP_16((x) >> 16)) 54 #define BSWAP_64(x) ((BSWAP_32(x) << 32) | BSWAP_32((x) >> 32)) 55 56 #define BMASK_8(x) ((x) & 0xff) 57 #define BMASK_16(x) ((x) & 0xffff) 58 #define BMASK_32(x) ((x) & 0xffffffff) 59 #define BMASK_64(x) (x) 60 61 /* 62 * Macros to convert from a specific byte order to/from native byte order 63 */ 64 #if _BYTE_ORDER == _BIG_ENDIAN 65 #define BE_8(x) BMASK_8(x) 66 #define BE_16(x) BMASK_16(x) 67 #define BE_32(x) BMASK_32(x) 68 #define BE_64(x) BMASK_64(x) 69 #define LE_8(x) BSWAP_8(x) 70 #define LE_16(x) BSWAP_16(x) 71 #define LE_32(x) BSWAP_32(x) 72 #define LE_64(x) BSWAP_64(x) 73 #else 74 #define LE_8(x) BMASK_8(x) 75 #define LE_16(x) BMASK_16(x) 76 #define LE_32(x) BMASK_32(x) 77 #define LE_64(x) BMASK_64(x) 78 #define BE_8(x) BSWAP_8(x) 79 #define BE_16(x) BSWAP_16(x) 80 #define BE_32(x) BSWAP_32(x) 81 #define BE_64(x) BSWAP_64(x) 82 #endif 83 84 #if _BYTE_ORDER == _BIG_ENDIAN 85 #define htonll(x) BMASK_64(x) 86 #define ntohll(x) BMASK_64(x) 87 #else 88 #define htonll(x) BSWAP_64(x) 89 #define ntohll(x) BSWAP_64(x) 90 #endif 91 92 #define BE_IN32(xa) htonl(*((uint32_t *)(void *)(xa))) 93 94 #endif /* _OPENSOLARIS_SYS_BYTEORDER_H_ */ 95