11a1589223
Files which are installed as-is (any .service and other unit files, .conf files, .policy files, etc), are left as is. My assumption is that SPDX identifiers are not yet that well known, so it's better to retain the extended header to avoid any doubt. I also kept any copyright lines. We can probably remove them, but it'd nice to obtain explicit acks from all involved authors before doing that.
106 lines
2.8 KiB
C
106 lines
2.8 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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#pragma once
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/***
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This file is part of systemd.
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Copyright 2014 Tom Gundersen
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***/
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#include <endian.h>
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#include <stdint.h>
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/* BE */
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static inline uint16_t unaligned_read_be16(const void *_u) {
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const struct __attribute__((packed, may_alias)) { uint16_t x; } *u = _u;
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return be16toh(u->x);
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}
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static inline uint32_t unaligned_read_be32(const void *_u) {
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const struct __attribute__((packed, may_alias)) { uint32_t x; } *u = _u;
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return be32toh(u->x);
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}
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static inline uint64_t unaligned_read_be64(const void *_u) {
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const struct __attribute__((packed, may_alias)) { uint64_t x; } *u = _u;
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return be64toh(u->x);
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}
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static inline void unaligned_write_be16(void *_u, uint16_t a) {
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struct __attribute__((packed, may_alias)) { uint16_t x; } *u = _u;
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u->x = be16toh(a);
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}
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static inline void unaligned_write_be32(void *_u, uint32_t a) {
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struct __attribute__((packed, may_alias)) { uint32_t x; } *u = _u;
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u->x = be32toh(a);
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}
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static inline void unaligned_write_be64(void *_u, uint64_t a) {
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struct __attribute__((packed, may_alias)) { uint64_t x; } *u = _u;
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u->x = be64toh(a);
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}
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/* LE */
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static inline uint16_t unaligned_read_le16(const void *_u) {
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const struct __attribute__((packed, may_alias)) { uint16_t x; } *u = _u;
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return le16toh(u->x);
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}
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static inline uint32_t unaligned_read_le32(const void *_u) {
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const struct __attribute__((packed, may_alias)) { uint32_t x; } *u = _u;
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return le32toh(u->x);
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}
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static inline uint64_t unaligned_read_le64(const void *_u) {
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const struct __attribute__((packed, may_alias)) { uint64_t x; } *u = _u;
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return le64toh(u->x);
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}
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static inline void unaligned_write_le16(void *_u, uint16_t a) {
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struct __attribute__((packed, may_alias)) { uint16_t x; } *u = _u;
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u->x = le16toh(a);
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}
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static inline void unaligned_write_le32(void *_u, uint32_t a) {
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struct __attribute__((packed, may_alias)) { uint32_t x; } *u = _u;
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u->x = le32toh(a);
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}
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static inline void unaligned_write_le64(void *_u, uint64_t a) {
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struct __attribute__((packed, may_alias)) { uint64_t x; } *u = _u;
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u->x = le64toh(a);
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}
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#if __BYTE_ORDER == __BIG_ENDIAN
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#define unaligned_read_ne16 unaligned_read_be16
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#define unaligned_read_ne32 unaligned_read_be32
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#define unaligned_read_ne64 unaligned_read_be64
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#define unaligned_write_ne16 unaligned_write_be16
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#define unaligned_write_ne32 unaligned_write_be32
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#define unaligned_write_ne64 unaligned_write_be64
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#else
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#define unaligned_read_ne16 unaligned_read_le16
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#define unaligned_read_ne32 unaligned_read_le32
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#define unaligned_read_ne64 unaligned_read_le64
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#define unaligned_write_ne16 unaligned_write_le16
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#define unaligned_write_ne32 unaligned_write_le32
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#define unaligned_write_ne64 unaligned_write_le64
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#endif
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