/*
 * Copyright (c) 2023 joshua stein <jcs@jcs.org>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef __ZIP_H__
#define __ZIP_H__

#include "puff.h"
#include "util.h"

#define GET_U16(buf) (u_int16_t)(\
	((u_int16_t)((unsigned char *)buf)[1] << 8) | \
	((u_int16_t)((unsigned char *)buf)[0]))
#define PUT_U16(buf, i) \
	((unsigned char *)buf)[0] = (i) & 0xff; \
	((unsigned char *)buf)[1] = ((i) >> 8) & 0xff;
#define GET_U32(buf) (u_int32_t)(\
	((u_int32_t)((unsigned char *)buf)[3] << 24) | \
	((u_int32_t)((unsigned char *)buf)[2] << 16) | \
	((u_int32_t)((unsigned char *)buf)[1] << 8) | \
	((u_int32_t)((unsigned char *)buf)[0]))
#define PUT_U32(buf, i) \
	((unsigned char *)buf)[0] = (i) & 0xff; \
	((unsigned char *)buf)[1] = ((i) >> 8) & 0xff; \
	((unsigned char *)buf)[2] = ((i) >> 16) & 0xff; \
	((unsigned char *)buf)[3] = ((i) >> 24) & 0xff;

#define ZIP_OK				0
#define ZIP_BAD_FILE		-1
#define ZIP_FAILED_OPEN		-2
#define ZIP_SHORT_READ		-3
#define ZIP_UNSUPPORTED		-4
#define ZIP_NO_MEMORY		-10

typedef bool zip_extract_decider(char *filename, size_t extracted_size);
typedef void zip_extract_processor(char *filename,
  unsigned char *extracted_data, size_t extracted_size);

bool zip_is_zip_file(Str255 path);
short zip_read_file(Str255 path, zip_extract_decider *decider,
  zip_extract_processor *processor);

#endif