/*
 * 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_GZIP_H_
#define OPKG_OPK_GZIP_H_

#include <stdio.h>
#include <zlib.h>

#define OPKG_OPK_GZIP_BUFFER_SIZE 8192

struct opkg_opk_gzip_state {
	FILE          *input_file;
	unsigned char  input_buffer[OPKG_OPK_GZIP_BUFFER_SIZE];
	z_stream       stream;
};

int
opkg_opk_gzip_init_from_file(struct opkg_opk_gzip_state *state,
		const char *file_name);

int
opkg_opk_gzip_init_from_memory(struct opkg_opk_gzip_state *state,
		unsigned char *input, size_t input_size);

int
opkg_opk_gzip_next_record(struct opkg_opk_gzip_state *state, void *record);

#endif  /* OPKG_OPK_GZIP_H_ */