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234 lines
8.6 KiB
234 lines
8.6 KiB
/* zip.h -- IO for compress .zip files using zlib |
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Version 1.01, May 8th, 2004 |
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Copyright (C) 1998-2004 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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I WAIT FEEDBACK at mail info@winimage.com |
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Visit also http://www.winimage.com/zLibDll/unzip.html 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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http://www.info-zip.org/pub/infozip/doc/appnote-981119-iz.zip |
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http://www.info-zip.org/pub/infozip/doc/ |
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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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#ifndef _ZLIBIOAPI_H |
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#include "ioapi.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_EOF (0) |
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#define ZIP_ERRNO (Z_ERRNO) |
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#define ZIP_PARAMERROR (-102) |
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#define ZIP_BADZIPFILE (-103) |
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#define ZIP_INTERNALERROR (-104) |
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#ifndef DEF_MEM_LEVEL |
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# if MAX_MEM_LEVEL >= 8 |
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# define DEF_MEM_LEVEL 8 |
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# else |
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# define DEF_MEM_LEVEL MAX_MEM_LEVEL |
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# endif |
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#endif |
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/* default memLevel */ |
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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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typedef const char* zipcharpc; |
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#define APPEND_STATUS_CREATE (0) |
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#define APPEND_STATUS_CREATEAFTER (1) |
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#define APPEND_STATUS_ADDINZIP (2) |
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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 XP a filename like "c:\\zlib\\zlib113.zip" or on |
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an Unix computer "zlib/zlib113.zip". |
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if the file pathname exist and append==APPEND_STATUS_CREATEAFTER, the zip |
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will be created at the end of the file. |
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(useful if the file contain a self extractor code) |
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if the file pathname exist and append==APPEND_STATUS_ADDINZIP, we will |
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add files in existing zip (be sure you don't add file that doesn't exist) |
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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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/* Note : there is no delete function into a zipfile. |
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If you want delete file into a zipfile, you must open a zipfile, and create another |
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Of couse, you can use RAW reading and writing to copy the file you did not want delte |
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*/ |
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extern zipFile ZEXPORT zipOpen2 OF((const char *pathname, |
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int append, |
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zipcharpc* globalcomment, |
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zlib_filefunc_def* pzlib_filefunc_def)); |
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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 zipOpenNewFileInZip2 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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int raw)); |
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/* |
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Same than zipOpenNewFileInZip, except if raw=1, we write raw file |
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*/ |
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extern int ZEXPORT zipOpenNewFileInZip3 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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int raw, |
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int windowBits, |
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int memLevel, |
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int strategy, |
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const char* password, |
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uLong crcForCtypting)); |
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/* |
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Same than zipOpenNewFileInZip2, except |
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windowBits,memLevel,,strategy : see parameter strategy in deflateInit2 |
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password : crypting password (NULL for no crypting) |
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crcForCtypting : crc of file to compress (needed for crypting) |
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*/ |
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extern int ZEXPORT zipWriteInFileInZip OF((zipFile file, |
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const void* 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 zipCloseFileInZipRaw OF((zipFile file, |
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uLong uncompressed_size, |
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uLong crc32)); |
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/* |
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Close the current file in the zipfile, for fiel opened with |
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parameter raw=1 in zipOpenNewFileInZip2 |
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uncompressed_size and crc32 are value for the uncompressed size |
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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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