151 lines
5.1 KiB
C
151 lines
5.1 KiB
C
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/* zip.h -- IO for compress .zip files using zlib
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Version 0.15 alpha, Mar 19th, 1998,
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Copyright (C) 1998 Gilles Vollant
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This unzip package allow creates .ZIP file, compatible with PKZip 2.04g
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WinZip, InfoZip tools and compatible.
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Encryption and multi volume ZipFile (span) are not supported.
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Old compressions used by old PKZip 1.x are not supported
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For uncompress .zip file, look at unzip.h
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THIS IS AN ALPHA VERSION. AT THIS STAGE OF DEVELOPPEMENT, SOMES API OR STRUCTURE
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CAN CHANGE IN FUTURE VERSION !!
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I WAIT FEEDBACK at mail info@winimage.com
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Visit also http://www.winimage.com/zLibDll/zip.htm for evolution
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Condition of use and distribution are the same than zlib :
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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/* for more info about .ZIP format, see
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ftp://ftp.cdrom.com/pub/infozip/doc/appnote-970311-iz.zip
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PkWare has also a specification at :
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ftp://ftp.pkware.com/probdesc.zip
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*/
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#ifndef _zip_H
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#define _zip_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifndef _ZLIB_H
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#include "zlib.h"
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#endif
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#if defined(STRICTZIP) || defined(STRICTZIPUNZIP)
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/* like the STRICT of WIN32, we define a pointer that cannot be converted
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from (void*) without cast */
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typedef struct TagzipFile__ { int unused; } zipFile__;
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typedef zipFile__ *zipFile;
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#else
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typedef voidp zipFile;
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#endif
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#define ZIP_OK (0)
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#define ZIP_ERRNO (Z_ERRNO)
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#define ZIP_PARAMERROR (-102)
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#define ZIP_INTERNALERROR (-104)
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/* tm_zip contain date/time info */
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typedef struct tm_zip_s
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{
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uInt tm_sec; /* seconds after the minute - [0,59] */
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uInt tm_min; /* minutes after the hour - [0,59] */
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uInt tm_hour; /* hours since midnight - [0,23] */
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uInt tm_mday; /* day of the month - [1,31] */
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uInt tm_mon; /* months since January - [0,11] */
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uInt tm_year; /* years - [1980..2044] */
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} tm_zip;
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typedef struct
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{
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tm_zip tmz_date; /* date in understandable format */
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uLong dosDate; /* if dos_date == 0, tmu_date is used */
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/* uLong flag; */ /* general purpose bit flag 2 bytes */
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uLong internal_fa; /* internal file attributes 2 bytes */
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uLong external_fa; /* external file attributes 4 bytes */
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} zip_fileinfo;
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extern zipFile ZEXPORT zipOpen OF((const char *pathname, int append));
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/*
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Create a zipfile.
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pathname contain on Windows NT a filename like "c:\\zlib\\zlib111.zip" or on
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an Unix computer "zlib/zlib111.zip".
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if the file pathname exist and append=1, the zip will be created at the end
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of the file. (useful if the file contain a self extractor code)
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If the zipfile cannot be opened, the return value is NULL.
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Else, the return value is a zipFile Handle, usable with other function
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of this zip package.
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*/
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extern int ZEXPORT zipOpenNewFileInZip OF((zipFile file,
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const char* filename,
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const zip_fileinfo* zipfi,
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const void* extrafield_local,
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uInt size_extrafield_local,
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const void* extrafield_global,
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uInt size_extrafield_global,
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const char* comment,
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int method,
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int level));
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/*
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Open a file in the ZIP for writing.
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filename : the filename in zip (if NULL, '-' without quote will be used
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*zipfi contain supplemental information
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if extrafield_local!=NULL and size_extrafield_local>0, extrafield_local
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contains the extrafield data the the local header
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if extrafield_global!=NULL and size_extrafield_global>0, extrafield_global
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contains the extrafield data the the local header
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if comment != NULL, comment contain the comment string
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method contain the compression method (0 for store, Z_DEFLATED for deflate)
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level contain the level of compression (can be Z_DEFAULT_COMPRESSION)
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*/
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extern int ZEXPORT zipWriteInFileInZip OF((zipFile file,
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const voidp buf,
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unsigned len));
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/*
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Write data in the zipfile
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*/
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extern int ZEXPORT zipCloseFileInZip OF((zipFile file));
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/*
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Close the current file in the zipfile
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*/
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extern int ZEXPORT zipClose OF((zipFile file,
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const char* global_comment));
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/*
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Close the zipfile
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*/
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#ifdef __cplusplus
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}
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#endif
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#endif /* _zip_H */
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