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/**
* Copyright (c) 2017 rxi
* Copyright (c) 2024 Gaspartcho
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the MIT license. See `microtar.c` for details.
*/
#ifndef MICROTAR_H
#define MICROTAR_H
#ifdef __cplusplus
extern "C"
{
#endif
#include <stdio.h>
#include <stdlib.h>
#define MTAR_VERSION "0.1.0"
enum {
MTAR_ESUCCESS = 0,
MTAR_EFAILURE = -1,
MTAR_EOPENFAIL = -2,
MTAR_EREADFAIL = -3,
MTAR_EWRITEFAIL = -4,
MTAR_ESEEKFAIL = -5,
MTAR_EBADCHKSUM = -6,
MTAR_ENULLRECORD = -7,
MTAR_ENOTFOUND = -8
};
enum {
MTAR_TREG = '0',
MTAR_TLNK = '1',
MTAR_TSYM = '2',
MTAR_TCHR = '3',
MTAR_TBLK = '4',
MTAR_TDIR = '5',
MTAR_TFIFO = '6',
MTAR_TCON = '7',
MTAR_TEHR = 'x', // PAX file format
MTAR_TEHRA = 'g', // PAX file format
MTAR_TGLP = 'K', // GNU file format
MTAR_TGFP = 'L' // GNU file format
};
typedef struct {
unsigned mode;
unsigned owner;
unsigned size;
unsigned mtime;
unsigned type;
char name[4096];
char linkname[4096];
} mtar_header_t;
typedef struct mtar_t mtar_t;
struct mtar_t {
int (*read)(mtar_t *tar, void *data, unsigned size);
int (*write)(mtar_t *tar, const void *data, unsigned size);
int (*seek)(mtar_t *tar, unsigned pos);
int (*close)(mtar_t *tar);
void *stream;
unsigned pos;
unsigned remaining_data;
unsigned last_header;
};
const char* mtar_strerror(int err);
int mtar_open(mtar_t *tar, const char *filename, const char *mode);
int mtar_close(mtar_t *tar);
int mtar_seek(mtar_t *tar, unsigned pos);
int mtar_rewind(mtar_t *tar);
int mtar_next(mtar_t *tar);
int mtar_find(mtar_t *tar, const char *name, mtar_header_t *h);
int mtar_read_header(mtar_t *tar, mtar_header_t *h);
int mtar_update_header(mtar_header_t *h, mtar_header_t *oh);
int mtar_clear_header(mtar_header_t *h);
int mtar_read_data(mtar_t *tar, void *ptr, unsigned size);
int mtar_write_header(mtar_t *tar, const mtar_header_t *h);
int mtar_write_file_header(mtar_t *tar, const char *name, unsigned size);
int mtar_write_dir_header(mtar_t *tar, const char *name);
int mtar_write_data(mtar_t *tar, const void *data, unsigned size);
int mtar_finalize(mtar_t *tar);
#ifdef __cplusplus
}
#endif
#endif
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