| 1 | /* |
| 2 | * Copyright (C) 2011 - David Goulet <dgoulet@efficios.com> |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License, version 2 only, |
| 6 | * as published by the Free Software Foundation. |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, but WITHOUT |
| 9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 11 | * more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU General Public License along |
| 14 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 15 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 16 | */ |
| 17 | |
| 18 | #ifndef _COMPAT_ENDIAN_H |
| 19 | #define _COMPAT_ENDIAN_H |
| 20 | |
| 21 | #ifdef __linux__ |
| 22 | #include <endian.h> |
| 23 | |
| 24 | /* |
| 25 | * htobe/betoh are not defined for glibc <2.9, so add them |
| 26 | * explicitly if they are missing. |
| 27 | */ |
| 28 | #ifdef __USE_BSD |
| 29 | /* Conversion interfaces. */ |
| 30 | # include <byteswap.h> |
| 31 | |
| 32 | # if __BYTE_ORDER == __LITTLE_ENDIAN |
| 33 | # ifndef htobe16 |
| 34 | # define htobe16(x) __bswap_16(x) |
| 35 | # endif |
| 36 | # ifndef htole16 |
| 37 | # define htole16(x) (x) |
| 38 | # endif |
| 39 | # ifndef be16toh |
| 40 | # define be16toh(x) __bswap_16(x) |
| 41 | # endif |
| 42 | # ifndef le16toh |
| 43 | # define le16toh(x) (x) |
| 44 | # endif |
| 45 | |
| 46 | # ifndef htobe32 |
| 47 | # define htobe32(x) __bswap_32(x) |
| 48 | # endif |
| 49 | # ifndef htole32 |
| 50 | # define htole32(x) (x) |
| 51 | # endif |
| 52 | # ifndef be32toh |
| 53 | # define be32toh(x) __bswap_32(x) |
| 54 | # endif |
| 55 | # ifndef le32toh |
| 56 | # define le32toh(x) (x) |
| 57 | # endif |
| 58 | |
| 59 | # ifndef htobe64 |
| 60 | # define htobe64(x) __bswap_64(x) |
| 61 | # endif |
| 62 | # ifndef htole64 |
| 63 | # define htole64(x) (x) |
| 64 | # endif |
| 65 | # ifndef be64toh |
| 66 | # define be64toh(x) __bswap_64(x) |
| 67 | # endif |
| 68 | # ifndef le64toh |
| 69 | # define le64toh(x) (x) |
| 70 | # endif |
| 71 | |
| 72 | # else /* __BYTE_ORDER == __LITTLE_ENDIAN */ |
| 73 | # ifndef htobe16 |
| 74 | # define htobe16(x) (x) |
| 75 | # endif |
| 76 | # ifndef htole16 |
| 77 | # define htole16(x) __bswap_16(x) |
| 78 | # endif |
| 79 | # ifndef be16toh |
| 80 | # define be16toh(x) (x) |
| 81 | # endif |
| 82 | # ifndef le16toh |
| 83 | # define le16toh(x) __bswap_16(x) |
| 84 | # endif |
| 85 | |
| 86 | # ifndef htobe32 |
| 87 | # define htobe32(x) (x) |
| 88 | # endif |
| 89 | # ifndef htole32 |
| 90 | # define htole32(x) __bswap_32(x) |
| 91 | # endif |
| 92 | # ifndef be32toh |
| 93 | # define be32toh(x) (x) |
| 94 | # endif |
| 95 | # ifndef le32toh |
| 96 | # define le32toh(x) __bswap_32(x) |
| 97 | # endif |
| 98 | |
| 99 | # ifndef htobe64 |
| 100 | # define htobe64(x) (x) |
| 101 | # endif |
| 102 | # ifndef htole64 |
| 103 | # define htole64(x) __bswap_64(x) |
| 104 | # endif |
| 105 | # ifndef be64toh |
| 106 | # define be64toh(x) (x) |
| 107 | # endif |
| 108 | # ifndef le64toh |
| 109 | # define le64toh(x) __bswap_64(x) |
| 110 | # endif |
| 111 | |
| 112 | # endif /* __BYTE_ORDER == __LITTLE_ENDIAN */ |
| 113 | #endif /* __USE_BSD */ |
| 114 | |
| 115 | #elif defined(__FreeBSD__) |
| 116 | #include <machine/endian.h> |
| 117 | |
| 118 | #elif defined(__sun__) |
| 119 | #include <sys/byteorder.h> |
| 120 | #ifndef __BIG_ENDIAN |
| 121 | #define __BIG_ENDIAN 4321 |
| 122 | #endif /* __BIG_ENDIAN */ |
| 123 | #ifndef __LITTLE_ENDIAN |
| 124 | #define __LITTLE_ENDIAN 1234 |
| 125 | #endif /* __LITTLE_ENDIAN */ |
| 126 | |
| 127 | #ifdef _LITTLE_ENDIAN |
| 128 | #define __BYTE_ORDER __LITTLE_ENDIAN |
| 129 | #endif /* _LITTLE_ENDIAN */ |
| 130 | #ifdef _BIG_ENDIAN |
| 131 | #define __BYTE_ORDER __BIG_ENDIAN |
| 132 | #endif /* _BIG_ENDIAN */ |
| 133 | |
| 134 | #define LITTLE_ENDIAN __LITTLE_ENDIAN |
| 135 | #define BIG_ENDIAN __BIG_ENDIAN |
| 136 | #define PDP_ENDIAN __PDP_ENDIAN |
| 137 | #define BYTE_ORDER __BYTE_ORDER |
| 138 | |
| 139 | #define betoh16(x) BE_16(x) |
| 140 | #define letoh16(x) LE_16(x) |
| 141 | #define betoh32(x) BE_32(x) |
| 142 | #define letoh32(x) LE_32(x) |
| 143 | #define betoh64(x) BE_64(x) |
| 144 | #define letoh64(x) LE_64(x) |
| 145 | #define htobe16(x) BE_16(x) |
| 146 | #define be16toh(x) BE_16(x) |
| 147 | #define htobe32(x) BE_32(x) |
| 148 | #define be32toh(x) BE_32(x) |
| 149 | #define htobe64(x) BE_64(x) |
| 150 | #define be64toh(x) BE_64(x) |
| 151 | |
| 152 | #else |
| 153 | #error "Please add support for your OS." |
| 154 | #endif |
| 155 | |
| 156 | #endif /* _COMPAT_ENDIAN_H */ |