pack.h

#ifndef PACK_H
#define PACK_H

#include <stdio.h>
#include <stdint.h>

/* Reading data on const uint8_t pointer */
// bytes -> uint8_t
uint8_t unpack_u8(const uint8_t **);

// bytes -> uint16_t
uint16_t unpack_u16(const uint8_t **);

// bytes -> uint32_t
uint32_t unpack_u32(const uint8_t **);

// read a defined len of bytes
uint8_t *unpack_bytes(const uint8_t **, size_t, uint8_t *);

/* Write data on const uint8_t pointer */
// append a uint8_t -> bytes into the bytestring
void pack_u8(uint8_t **, uint8_t);

// append a uint16_t -> bytes into the bytestring
void pack_u16(uint8_t **, uint16_t);

// append a uint32_t -> bytes into the bytestring
void pack_u32(uint8_t **, uint32_t);

// append len bytes into the bytestring
void pack_bytes(uint8_t **, uint8_t *);

#endif