#pragma once

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

#define ROTS_MAGIC "ROTS-IMG"

struct rots_hdr {
	uint64_t timestamp;
	uint64_t size;
};

struct rots_sig_hdr {
	char *name;
	char *digest;
	uint64_t timestamp;
	uint32_t size;
};

size_t read_u8(FILE *fp, uint8_t *val);
size_t read_u32(FILE *fp, uint32_t *val);
size_t read_u64(FILE *fp, uint64_t *val);
size_t write_u8(FILE *fp, uint8_t val);
size_t write_u32(FILE *fp, uint32_t val);
size_t write_u64(FILE *fp, uint64_t val);

int rots_read_hdr(FILE *fp, struct rots_hdr *hdr);
int rots_write_hdr(FILE *fp, struct rots_hdr *hdr);
int rots_read_sig_hdr(FILE *fp, struct rots_sig_hdr *sig_hdr);
int rots_write_sig_hdr(FILE *fp, struct rots_sig_hdr *sig_hdr);
void rots_cleanup_sig_hdr(struct rots_sig_hdr *sig_hdr);