File: unaligned.h

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#ifndef UNALIGNED_H_INCLUDED
#define UNALIGNED_H_INCLUDED

#include <stdint.h>

static inline uint16_t get_unaligned_be16(const void *ptr)
{
	const uint8_t *p = ptr;

	return p[0] << 8 | p[1];
}

static inline uint32_t get_unaligned_be32(const void *ptr)
{
	const uint8_t *p = ptr;

	return p[0] << 24 | p[1] << 16 | p[2] << 8 | p[3];
}

static inline uint64_t get_unaligned_be64(const void *ptr)
{
	uint32_t low = get_unaligned_be32(ptr + 4);
	uint64_t high = get_unaligned_be32(ptr);

	return high << 32 | low;
}

static inline void put_unaligned_be16(uint16_t val, void *ptr)
{
	uint8_t *p = ptr;

	p[0] = val >> 8;
	p[1] = val;
}

static inline void put_unaligned_be32(uint32_t val, void *ptr)
{
	uint8_t *p = ptr;

	p[0] = val >> 24;
	p[1] = val >> 16;
	p[2] = val >> 8;
	p[3] = val;
}

static inline void put_unaligned_be64(uint64_t val, void *ptr)
{
	uint8_t *p = ptr;

	put_unaligned_be32(val >> 32, p);
	put_unaligned_be32(val, p + 4);
}

#endif /* UNALIGNED_H_INCLUDED */