byteorder.c revision 1.2.4.2
1 1.2.4.2 nathanw /* $NetBSD: byteorder.c,v 1.2.4.2 2001/11/14 19:16:51 nathanw Exp $ */ 2 1.2.4.2 nathanw 3 1.2.4.2 nathanw /* 4 1.2.4.2 nathanw * Copyright 2001 Wasabi Systems, Inc. 5 1.2.4.2 nathanw * All rights reserved. 6 1.2.4.2 nathanw * 7 1.2.4.2 nathanw * Written by Jason R. Thorpe for Wasabi Systems, Inc. 8 1.2.4.2 nathanw * 9 1.2.4.2 nathanw * Redistribution and use in source and binary forms, with or without 10 1.2.4.2 nathanw * modification, are permitted provided that the following conditions 11 1.2.4.2 nathanw * are met: 12 1.2.4.2 nathanw * 1. Redistributions of source code must retain the above copyright 13 1.2.4.2 nathanw * notice, this list of conditions and the following disclaimer. 14 1.2.4.2 nathanw * 2. Redistributions in binary form must reproduce the above copyright 15 1.2.4.2 nathanw * notice, this list of conditions and the following disclaimer in the 16 1.2.4.2 nathanw * documentation and/or other materials provided with the distribution. 17 1.2.4.2 nathanw * 3. All advertising materials mentioning features or use of this software 18 1.2.4.2 nathanw * must display the following acknowledgement: 19 1.2.4.2 nathanw * This product includes software developed for the NetBSD Project by 20 1.2.4.2 nathanw * Wasabi Systems, Inc. 21 1.2.4.2 nathanw * 4. The name of Wasabi Systems, Inc. may not be used to endorse 22 1.2.4.2 nathanw * or promote products derived from this software without specific prior 23 1.2.4.2 nathanw * written permission. 24 1.2.4.2 nathanw * 25 1.2.4.2 nathanw * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 26 1.2.4.2 nathanw * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 1.2.4.2 nathanw * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 1.2.4.2 nathanw * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 29 1.2.4.2 nathanw * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 1.2.4.2 nathanw * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 1.2.4.2 nathanw * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 1.2.4.2 nathanw * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 1.2.4.2 nathanw * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 1.2.4.2 nathanw * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 1.2.4.2 nathanw * POSSIBILITY OF SUCH DAMAGE. 36 1.2.4.2 nathanw */ 37 1.2.4.2 nathanw 38 1.2.4.2 nathanw #include "byteorder.h" 39 1.2.4.2 nathanw 40 1.2.4.2 nathanw typedef union { 41 1.2.4.2 nathanw uint16_t val; 42 1.2.4.2 nathanw uint8_t bytes[2]; 43 1.2.4.2 nathanw } un16; 44 1.2.4.2 nathanw 45 1.2.4.2 nathanw typedef union { 46 1.2.4.2 nathanw uint32_t val; 47 1.2.4.2 nathanw uint8_t bytes[4]; 48 1.2.4.2 nathanw } un32; 49 1.2.4.2 nathanw 50 1.2.4.2 nathanw typedef union { 51 1.2.4.2 nathanw uint64_t val; 52 1.2.4.2 nathanw uint32_t words[2]; 53 1.2.4.2 nathanw } un64; 54 1.2.4.2 nathanw 55 1.2.4.2 nathanw /* 16-bit */ 56 1.2.4.2 nathanw 57 1.2.4.2 nathanw uint16_t 58 1.2.4.2 nathanw sa_htobe16(uint16_t val) 59 1.2.4.2 nathanw { 60 1.2.4.2 nathanw un16 un; 61 1.2.4.2 nathanw 62 1.2.4.2 nathanw un.bytes[1] = val & 0xff; 63 1.2.4.2 nathanw un.bytes[0] = (val >> 8) & 0xff; 64 1.2.4.2 nathanw 65 1.2.4.2 nathanw return (un.val); 66 1.2.4.2 nathanw } 67 1.2.4.2 nathanw 68 1.2.4.2 nathanw uint16_t 69 1.2.4.2 nathanw sa_htole16(uint16_t val) 70 1.2.4.2 nathanw { 71 1.2.4.2 nathanw un16 un; 72 1.2.4.2 nathanw 73 1.2.4.2 nathanw un.bytes[0] = val & 0xff; 74 1.2.4.2 nathanw un.bytes[1] = (val >> 8) & 0xff; 75 1.2.4.2 nathanw 76 1.2.4.2 nathanw return (un.val); 77 1.2.4.2 nathanw } 78 1.2.4.2 nathanw 79 1.2.4.2 nathanw uint16_t 80 1.2.4.2 nathanw sa_be16toh(uint16_t val) 81 1.2.4.2 nathanw { 82 1.2.4.2 nathanw un16 un; 83 1.2.4.2 nathanw 84 1.2.4.2 nathanw un.val = val; 85 1.2.4.2 nathanw 86 1.2.4.2 nathanw return ((un.bytes[0] << 8) | 87 1.2.4.2 nathanw un.bytes[1]); 88 1.2.4.2 nathanw } 89 1.2.4.2 nathanw 90 1.2.4.2 nathanw uint16_t 91 1.2.4.2 nathanw sa_le16toh(uint16_t val) 92 1.2.4.2 nathanw { 93 1.2.4.2 nathanw un16 un; 94 1.2.4.2 nathanw 95 1.2.4.2 nathanw un.val = val; 96 1.2.4.2 nathanw 97 1.2.4.2 nathanw return ((un.bytes[1] << 8) | 98 1.2.4.2 nathanw un.bytes[0]); 99 1.2.4.2 nathanw } 100 1.2.4.2 nathanw 101 1.2.4.2 nathanw /* 32-bit */ 102 1.2.4.2 nathanw 103 1.2.4.2 nathanw uint32_t 104 1.2.4.2 nathanw sa_htobe32(uint32_t val) 105 1.2.4.2 nathanw { 106 1.2.4.2 nathanw un32 un; 107 1.2.4.2 nathanw 108 1.2.4.2 nathanw un.bytes[3] = val & 0xff; 109 1.2.4.2 nathanw un.bytes[2] = (val >> 8) & 0xff; 110 1.2.4.2 nathanw un.bytes[1] = (val >> 16) & 0xff; 111 1.2.4.2 nathanw un.bytes[0] = (val >> 24) & 0xff; 112 1.2.4.2 nathanw 113 1.2.4.2 nathanw return (un.val); 114 1.2.4.2 nathanw } 115 1.2.4.2 nathanw 116 1.2.4.2 nathanw uint32_t 117 1.2.4.2 nathanw sa_htole32(uint32_t val) 118 1.2.4.2 nathanw { 119 1.2.4.2 nathanw un32 un; 120 1.2.4.2 nathanw 121 1.2.4.2 nathanw un.bytes[0] = val & 0xff; 122 1.2.4.2 nathanw un.bytes[1] = (val >> 8) & 0xff; 123 1.2.4.2 nathanw un.bytes[2] = (val >> 16) & 0xff; 124 1.2.4.2 nathanw un.bytes[3] = (val >> 24) & 0xff; 125 1.2.4.2 nathanw 126 1.2.4.2 nathanw return (un.val); 127 1.2.4.2 nathanw } 128 1.2.4.2 nathanw 129 1.2.4.2 nathanw uint32_t 130 1.2.4.2 nathanw sa_be32toh(uint32_t val) 131 1.2.4.2 nathanw { 132 1.2.4.2 nathanw un32 un; 133 1.2.4.2 nathanw 134 1.2.4.2 nathanw un.val = val; 135 1.2.4.2 nathanw 136 1.2.4.2 nathanw return ((un.bytes[0] << 24) | 137 1.2.4.2 nathanw (un.bytes[1] << 16) | 138 1.2.4.2 nathanw (un.bytes[2] << 8) | 139 1.2.4.2 nathanw un.bytes[3]); 140 1.2.4.2 nathanw } 141 1.2.4.2 nathanw 142 1.2.4.2 nathanw uint32_t 143 1.2.4.2 nathanw sa_le32toh(uint32_t val) 144 1.2.4.2 nathanw { 145 1.2.4.2 nathanw un32 un; 146 1.2.4.2 nathanw 147 1.2.4.2 nathanw un.val = val; 148 1.2.4.2 nathanw 149 1.2.4.2 nathanw return ((un.bytes[3] << 24) | 150 1.2.4.2 nathanw (un.bytes[2] << 16) | 151 1.2.4.2 nathanw (un.bytes[1] << 8) | 152 1.2.4.2 nathanw un.bytes[0]); 153 1.2.4.2 nathanw } 154 1.2.4.2 nathanw 155 1.2.4.2 nathanw /* 64-bit */ 156 1.2.4.2 nathanw 157 1.2.4.2 nathanw uint64_t 158 1.2.4.2 nathanw sa_htobe64(uint64_t val) 159 1.2.4.2 nathanw { 160 1.2.4.2 nathanw un64 un; 161 1.2.4.2 nathanw 162 1.2.4.2 nathanw un.words[BE64_HI] = sa_htobe32(val >> 32); 163 1.2.4.2 nathanw un.words[BE64_LO] = sa_htobe32(val & 0xffffffffU); 164 1.2.4.2 nathanw 165 1.2.4.2 nathanw return (un.val); 166 1.2.4.2 nathanw } 167 1.2.4.2 nathanw 168 1.2.4.2 nathanw uint64_t 169 1.2.4.2 nathanw sa_htole64(uint64_t val) 170 1.2.4.2 nathanw { 171 1.2.4.2 nathanw un64 un; 172 1.2.4.2 nathanw 173 1.2.4.2 nathanw un.words[LE64_HI] = sa_htole32(val >> 32); 174 1.2.4.2 nathanw un.words[LE64_LO] = sa_htole32(val & 0xffffffffU); 175 1.2.4.2 nathanw 176 1.2.4.2 nathanw return (un.val); 177 1.2.4.2 nathanw } 178 1.2.4.2 nathanw 179 1.2.4.2 nathanw uint64_t 180 1.2.4.2 nathanw sa_be64toh(uint64_t val) 181 1.2.4.2 nathanw { 182 1.2.4.2 nathanw un64 un; 183 1.2.4.2 nathanw uint64_t rv; 184 1.2.4.2 nathanw 185 1.2.4.2 nathanw un.val = val; 186 1.2.4.2 nathanw un.words[BE64_HI] = sa_be32toh(un.words[BE64_HI]); 187 1.2.4.2 nathanw un.words[BE64_LO] = sa_be32toh(un.words[BE64_LO]); 188 1.2.4.2 nathanw 189 1.2.4.2 nathanw rv = (((uint64_t)un.words[BE64_HI]) << 32) | 190 1.2.4.2 nathanw un.words[BE64_LO]; 191 1.2.4.2 nathanw 192 1.2.4.2 nathanw return (rv); 193 1.2.4.2 nathanw } 194 1.2.4.2 nathanw 195 1.2.4.2 nathanw uint64_t 196 1.2.4.2 nathanw sa_le64toh(uint64_t val) 197 1.2.4.2 nathanw { 198 1.2.4.2 nathanw un64 un; 199 1.2.4.2 nathanw uint64_t rv; 200 1.2.4.2 nathanw 201 1.2.4.2 nathanw un.val = val; 202 1.2.4.2 nathanw un.words[LE64_HI] = sa_le32toh(un.words[LE64_HI]); 203 1.2.4.2 nathanw un.words[LE64_LO] = sa_le32toh(un.words[LE64_LO]); 204 1.2.4.2 nathanw 205 1.2.4.2 nathanw rv = (((uint64_t)un.words[LE64_HI]) << 32) | 206 1.2.4.2 nathanw un.words[LE64_LO]; 207 1.2.4.2 nathanw 208 1.2.4.2 nathanw return (rv); 209 1.2.4.2 nathanw } 210
Indexes created Thu Oct 02 14:10:14 GMT 2025