| Fairphone ODM | 25c12f5 | 2023-12-15 17:24:06 +0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2017 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #pragma once |
| 18 | |
| 19 | /* A cross-platform equivalent of bionic's <sys/endian.h>. */ |
| 20 | |
| 21 | /* For __BIONIC__ and __GLIBC__ */ |
| 22 | #include <sys/cdefs.h> |
| 23 | |
| 24 | #if defined(__BIONIC__) |
| 25 | |
| 26 | #include <sys/endian.h> |
| 27 | |
| 28 | #elif defined(__GLIBC__) || defined(ANDROID_HOST_MUSL) |
| 29 | |
| 30 | /* glibc and musl's <endian.h> are like bionic's <sys/endian.h>. */ |
| 31 | #include <endian.h> |
| 32 | |
| 33 | /* glibc and musl keep htons and htonl in <netinet/in.h>. */ |
| 34 | #include <netinet/in.h> |
| 35 | |
| 36 | /* glibc and musl don't have the 64-bit variants. */ |
| 37 | #define htonq(x) htobe64(x) |
| 38 | #define ntohq(x) be64toh(x) |
| 39 | |
| 40 | #if defined(__GLIBC__) |
| 41 | /* glibc has different names to BSD for these. */ |
| 42 | #define betoh16(x) be16toh(x) |
| 43 | #define betoh32(x) be32toh(x) |
| 44 | #define betoh64(x) be64toh(x) |
| 45 | #define letoh16(x) le16toh(x) |
| 46 | #define letoh32(x) le32toh(x) |
| 47 | #define letoh64(x) le64toh(x) |
| 48 | #endif |
| 49 | |
| 50 | #else |
| 51 | |
| 52 | #if defined(__APPLE__) |
| 53 | /* macOS has some of the basics. */ |
| 54 | #include <sys/_endian.h> |
| 55 | #else |
| 56 | /* Windows has some of the basics as well. */ |
| 57 | #include <sys/param.h> |
| 58 | #include <winsock2.h> |
| 59 | /* winsock2.h *must* be included before the following four macros. */ |
| 60 | #define htons(x) __builtin_bswap16(x) |
| 61 | #define htonl(x) __builtin_bswap32(x) |
| 62 | #define ntohs(x) __builtin_bswap16(x) |
| 63 | #define ntohl(x) __builtin_bswap32(x) |
| 64 | #endif |
| 65 | |
| 66 | /* Neither macOS nor Windows have the rest. */ |
| 67 | |
| 68 | #define __LITTLE_ENDIAN 1234 |
| 69 | #define __BIG_ENDIAN 4321 |
| 70 | #define __BYTE_ORDER __LITTLE_ENDIAN |
| 71 | |
| 72 | #define htonq(x) __builtin_bswap64(x) |
| 73 | |
| 74 | #define ntohq(x) __builtin_bswap64(x) |
| 75 | |
| 76 | #define htobe16(x) __builtin_bswap16(x) |
| 77 | #define htobe32(x) __builtin_bswap32(x) |
| 78 | #define htobe64(x) __builtin_bswap64(x) |
| 79 | |
| 80 | #define betoh16(x) __builtin_bswap16(x) |
| 81 | #define betoh32(x) __builtin_bswap32(x) |
| 82 | #define betoh64(x) __builtin_bswap64(x) |
| 83 | |
| 84 | #define htole16(x) (x) |
| 85 | #define htole32(x) (x) |
| 86 | #define htole64(x) (x) |
| 87 | |
| 88 | #define letoh16(x) (x) |
| 89 | #define letoh32(x) (x) |
| 90 | #define letoh64(x) (x) |
| 91 | |
| 92 | #define be16toh(x) __builtin_bswap16(x) |
| 93 | #define be32toh(x) __builtin_bswap32(x) |
| 94 | #define be64toh(x) __builtin_bswap64(x) |
| 95 | |
| 96 | #define le16toh(x) (x) |
| 97 | #define le32toh(x) (x) |
| 98 | #define le64toh(x) (x) |
| 99 | |
| 100 | #endif |