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