49 lines
863 B
C++
49 lines
863 B
C++
#ifndef KIMODEM_TLV_H
|
|
#define KIMODEM_TLV_H
|
|
|
|
#include <cstdint>
|
|
|
|
#include "Arena.h"
|
|
|
|
|
|
#ifndef TLV_MAX_LEN
|
|
#define TLV_MAX_LEN 253
|
|
#endif
|
|
|
|
|
|
#define TAG_EMPTY 0
|
|
|
|
|
|
namespace TLV {
|
|
|
|
|
|
struct Record {
|
|
uint8_t Tag;
|
|
uint8_t Len;
|
|
char Val[TLV_MAX_LEN];
|
|
};
|
|
|
|
|
|
uint8_t *WriteToMemory(Arena &, uint8_t *, Record &);
|
|
void ReadFromMemory(Record &, uint8_t *);
|
|
void SetRecord(Record &, uint8_t, uint8_t, const char *);
|
|
void DeleteRecord(Arena &, uint8_t *);
|
|
|
|
/*
|
|
* returns a pointer to memory where the record was found,
|
|
* e.g. LocateTag(...)[0] is the tag of the found record.
|
|
* FindTag will call LocateTag and then SkipRecord if the
|
|
* tag was found.
|
|
*/
|
|
uint8_t *FindTag(Arena &, uint8_t *, Record &);
|
|
uint8_t *LocateTag(Arena &, uint8_t *, Record &);
|
|
|
|
uint8_t *FindEmpty(Arena &, uint8_t *);
|
|
uint8_t *SkipRecord(Record &, uint8_t *);
|
|
|
|
|
|
} // namespace TLV
|
|
|
|
|
|
#endif
|