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1 | /* Copyright (c) 2012 Josh Triplett <josh@joshtriplett.org> |
2 | * | |
3 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
4 | * of this software and associated documentation files (the "Software"), to | |
5 | * deal in the Software without restriction, including without limitation the | |
6 | * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or | |
7 | * sell copies of the Software, and to permit persons to whom the Software is | |
8 | * furnished to do so, subject to the following conditions: | |
9 | * | |
10 | * The above copyright notice and this permission notice shall be included in | |
11 | * all copies or substantial portions of the Software. | |
12 | * | |
13 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
14 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
15 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
16 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
17 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | |
18 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS | |
19 | * IN THE SOFTWARE. | |
20 | */ | |
21 | #ifndef SPARSE_ENDIAN_H | |
22 | #define SPARSE_ENDIAN_H | |
23 | ||
8e8af4cf | 24 | #include <byteswap.h> |
4fd052ae FC |
25 | #include <endian.h> |
26 | #include <stdint.h> | |
27 | ||
28 | #ifdef __CHECKER__ | |
dc66f33a LR |
29 | #define __sd_bitwise __attribute__((bitwise)) |
30 | #define __sd_force __attribute__((force)) | |
4fd052ae | 31 | #else |
dc66f33a LR |
32 | #define __sd_bitwise |
33 | #define __sd_force | |
4fd052ae FC |
34 | #endif |
35 | ||
dc66f33a LR |
36 | typedef uint16_t __sd_bitwise le16_t; |
37 | typedef uint16_t __sd_bitwise be16_t; | |
38 | typedef uint32_t __sd_bitwise le32_t; | |
39 | typedef uint32_t __sd_bitwise be32_t; | |
40 | typedef uint64_t __sd_bitwise le64_t; | |
41 | typedef uint64_t __sd_bitwise be64_t; | |
4fd052ae FC |
42 | |
43 | #undef htobe16 | |
44 | #undef htole16 | |
45 | #undef be16toh | |
46 | #undef le16toh | |
47 | #undef htobe32 | |
48 | #undef htole32 | |
49 | #undef be32toh | |
50 | #undef le32toh | |
51 | #undef htobe64 | |
52 | #undef htole64 | |
53 | #undef be64toh | |
54 | #undef le64toh | |
55 | ||
56 | #if __BYTE_ORDER == __LITTLE_ENDIAN | |
57 | #define bswap_16_on_le(x) __bswap_16(x) | |
58 | #define bswap_32_on_le(x) __bswap_32(x) | |
59 | #define bswap_64_on_le(x) __bswap_64(x) | |
60 | #define bswap_16_on_be(x) (x) | |
61 | #define bswap_32_on_be(x) (x) | |
62 | #define bswap_64_on_be(x) (x) | |
63 | #elif __BYTE_ORDER == __BIG_ENDIAN | |
64 | #define bswap_16_on_le(x) (x) | |
65 | #define bswap_32_on_le(x) (x) | |
66 | #define bswap_64_on_le(x) (x) | |
67 | #define bswap_16_on_be(x) __bswap_16(x) | |
68 | #define bswap_32_on_be(x) __bswap_32(x) | |
69 | #define bswap_64_on_be(x) __bswap_64(x) | |
70 | #endif | |
71 | ||
dc66f33a LR |
72 | static inline le16_t htole16(uint16_t value) { return (le16_t __sd_force) bswap_16_on_be(value); } |
73 | static inline le32_t htole32(uint32_t value) { return (le32_t __sd_force) bswap_32_on_be(value); } | |
74 | static inline le64_t htole64(uint64_t value) { return (le64_t __sd_force) bswap_64_on_be(value); } | |
4fd052ae | 75 | |
dc66f33a LR |
76 | static inline be16_t htobe16(uint16_t value) { return (be16_t __sd_force) bswap_16_on_le(value); } |
77 | static inline be32_t htobe32(uint32_t value) { return (be32_t __sd_force) bswap_32_on_le(value); } | |
78 | static inline be64_t htobe64(uint64_t value) { return (be64_t __sd_force) bswap_64_on_le(value); } | |
4fd052ae | 79 | |
dc66f33a LR |
80 | static inline uint16_t le16toh(le16_t value) { return bswap_16_on_be((uint16_t __sd_force)value); } |
81 | static inline uint32_t le32toh(le32_t value) { return bswap_32_on_be((uint32_t __sd_force)value); } | |
82 | static inline uint64_t le64toh(le64_t value) { return bswap_64_on_be((uint64_t __sd_force)value); } | |
4fd052ae | 83 | |
dc66f33a LR |
84 | static inline uint16_t be16toh(be16_t value) { return bswap_16_on_le((uint16_t __sd_force)value); } |
85 | static inline uint32_t be32toh(be32_t value) { return bswap_32_on_le((uint32_t __sd_force)value); } | |
86 | static inline uint64_t be64toh(be64_t value) { return bswap_64_on_le((uint64_t __sd_force)value); } | |
87 | ||
88 | #undef __sd_bitwise | |
89 | #undef __sd_force | |
4fd052ae FC |
90 | |
91 | #endif /* SPARSE_ENDIAN_H */ |