/*
 * Copyright (C) 2023  Patrick McDermott
 *
 * This file is part of opkg-opk.
 *
 * opkg-opk is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * opkg-opk is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with opkg-opk.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef OPKG_OPK_USTAR_H_
#define OPKG_OPK_USTAR_H_

#include <stdint.h>

#define OPKG_OPK_USTAR_RECORD_SIZE  512
#define OPKG_OPK_USTAR_NAME_MAX_LEN 257  /* prefix[155] + '/' + name[100] + '\0'
                                          */

struct opkg_opk_ustar;

struct opkg_opk_ustar_member {
	char                          name[OPKG_OPK_USTAR_NAME_MAX_LEN];
	uint16_t                      mode;
	int64_t                       size;
	int64_t                       mtime;
	char                          type;
	char                          linkname[100];
	char                          uname    [32];
	char                          gname    [32];
	struct opkg_opk_ustar_member *next;
};

struct opkg_opk_ustar *
opkg_opk_ustar_init(struct opkg_opk_gzip *gzip);

int
opkg_opk_ustar_list(struct opkg_opk_ustar *ustar,
		struct opkg_opk_ustar_member **member);

int
opkg_opk_ustar_seek(struct opkg_opk_ustar *ustar, int num_keys, ...);

int
opkg_opk_ustar_read(struct opkg_opk_ustar *ustar, char **buffer, size_t *size);

void
opkg_opk_ustar_free(struct opkg_opk_ustar *ustar);

#endif  /* OPKG_OPK_USTAR_H_ */