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/*
* Function to iterate through files in a ZIP archive.
*
* This file is part of the Mateusz' DOS Routines (MDR): http://mdr.osdn.io
* Published under the terms of the MIT License, as stated below.
*
* Copyright (C) 2012-2022 Mateusz Viste
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
#ifndef MDR_UNZIP
#define MDR_UNZIP
#include <stdio.h> /* FILE * */
#define ZIP_FLAG_ISADIR 1
#define ZIP_FLAG_ENCRYPTED 2
#define ZIP_METH_STORE 0
#define ZIP_METH_DEFLATE 8
struct mdr_zip_item {
unsigned long filelen;
unsigned long compressedfilelen;
unsigned long crc32;
unsigned long dataoffset; /* offset in the file where compressed data starts */
unsigned long nextidxoffset; /* offset in the file of the next zip record, used by mdr_zip_iter() */
unsigned short dosdate; /* datestamp of the file (DOS packed format) */
unsigned short dostime; /* timestamp of the file (DOS packed format) */
unsigned short compmethod; /* compression method (ZIP_METH_xxx) */
unsigned char flags; /* see ZIP_FLAG_xxx above */
char fname[256]; /* filename */
};
/* returns next item found in zip file. this is supposed to be called
* iteratively, passing the previous mdr_zipitem struct each time (z must be
* all zeroed out on first call).
* returns 0 on success, neg on error, 1 on end of archive */
int mdr_zip_iter(struct mdr_zip_item *z, FILE *fd);
#endif