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, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 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 _SYS_BYTEORDER_H 41 #define _SYS_BYTEORDER_H 42 43 #pragma ident "%Z%%M% %I% %E% SMI" 44 45 #include <sys/isa_defs.h> 46 #include <sys/int_types.h> 47 48 #if defined(__GNUC__) && defined(_ASM_INLINES) 49 #include <asm/byteorder.h> 50 #endif 51 52 #ifdef __cplusplus 53 extern "C" { 54 #endif 55 56 /* 57 * macros for conversion between host and (internet) network byte order 58 */ 59 60 #if defined(_BIG_ENDIAN) && !defined(ntohl) && !defined(__lint) 61 /* big-endian */ 62 #define ntohl(x) (x) 63 #define ntohs(x) (x) 64 #define htonl(x) (x) 65 #define htons(x) (x) 66 67 #elif !defined(ntohl) /* little-endian */ 68 69 #ifndef _IN_PORT_T 70 #define _IN_PORT_T 71 typedef uint16_t in_port_t; 72 #endif 73 74 #ifndef _IN_ADDR_T 75 #define _IN_ADDR_T 76 typedef uint32_t in_addr_t; 77 #endif 78 79 #if !defined(_XPG4_2) || defined(__EXTENSIONS__) || defined(_XPG5) 80 extern uint32_t htonl(uint32_t); 81 extern uint16_t htons(uint16_t); 82 extern uint32_t ntohl(uint32_t); 83 extern uint16_t ntohs(uint16_t); 84 #else 85 extern in_addr_t htonl(in_addr_t); 86 extern in_port_t htons(in_port_t); 87 extern in_addr_t ntohl(in_addr_t); 88 extern in_port_t ntohs(in_port_t); 89 #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) || defined(_XPG5) */ 90 #endif 91 92 #if !defined(_XPG4_2) || defined(__EXTENSIONS__) 93 94 /* 95 * Macros to reverse byte order 96 */ 97 #define BSWAP_8(x) ((x) & 0xff) 98 #define BSWAP_16(x) ((BSWAP_8(x) << 8) | BSWAP_8((x) >> 8)) 99 #define BSWAP_32(x) ((BSWAP_16(x) << 16) | BSWAP_16((x) >> 16)) 100 #define BSWAP_64(x) ((BSWAP_32(x) << 32) | BSWAP_32((x) >> 32)) 101 102 #define BMASK_8(x) ((x) & 0xff) 103 #define BMASK_16(x) ((x) & 0xffff) 104 #define BMASK_32(x) ((x) & 0xffffffff) 105 #define BMASK_64(x) (x) 106 107 /* 108 * Macros to convert from a specific byte order to/from native byte order 109 */ 110 #ifdef _BIG_ENDIAN 111 #define BE_8(x) BMASK_8(x) 112 #define BE_16(x) BMASK_16(x) 113 #define BE_32(x) BMASK_32(x) 114 #define BE_64(x) BMASK_64(x) 115 #define LE_8(x) BSWAP_8(x) 116 #define LE_16(x) BSWAP_16(x) 117 #define LE_32(x) BSWAP_32(x) 118 #define LE_64(x) BSWAP_64(x) 119 #else 120 #define LE_8(x) BMASK_8(x) 121 #define LE_16(x) BMASK_16(x) 122 #define LE_32(x) BMASK_32(x) 123 #define LE_64(x) BMASK_64(x) 124 #define BE_8(x) BSWAP_8(x) 125 #define BE_16(x) BSWAP_16(x) 126 #define BE_32(x) BSWAP_32(x) 127 #define BE_64(x) BSWAP_64(x) 128 #endif 129 130 #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */ 131 132 #ifdef __cplusplus 133 } 134 #endif 135 136 #endif /* _SYS_BYTEORDER_H */ 137