1 /* zip.h -- IO for compress .zip files using zlib
2 Version 1.01e, February 12th, 2005
4 Copyright (C) 1998-2005 Gilles Vollant
6 This unzip package allow creates .ZIP file, compatible with PKZip 2.04g
7 WinZip, InfoZip tools and compatible.
8 Multi volume ZipFile (span) are not supported.
9 Encryption compatible with pkzip 2.04g only supported
10 Old compressions used by old PKZip 1.x are not supported
12 For uncompress .zip file, look at unzip.h
15 I WAIT FEEDBACK at mail info@winimage.com
16 Visit also http://www.winimage.com/zLibDll/unzip.html for evolution
18 Condition of use and distribution are the same than zlib :
20 This software is provided 'as-is', without any express or implied
21 warranty. In no event will the authors be held liable for any damages
22 arising from the use of this software.
24 Permission is granted to anyone to use this software for any purpose,
25 including commercial applications, and to alter it and redistribute it
26 freely, subject to the following restrictions:
28 1. The origin of this software must not be misrepresented; you must not
29 claim that you wrote the original software. If you use this software
30 in a product, an acknowledgment in the product documentation would be
31 appreciated but is not required.
32 2. Altered source versions must be plainly marked as such, and must not be
33 misrepresented as being the original software.
34 3. This notice may not be removed or altered from any source distribution.
39 /* for more info about .ZIP format, see
40 http://www.info-zip.org/pub/infozip/doc/appnote-981119-iz.zip
41 http://www.info-zip.org/pub/infozip/doc/
42 PkWare has also a specification at :
43 ftp://ftp.pkware.com/probdesc.zip
54 #include "ZLIB/zlib.h"
61 #if defined(STRICTZIP) || defined(STRICTZIPUNZIP)
62 /* like the STRICT of WIN32, we define a pointer that cannot be converted
63 from (void*) without cast */
64 typedef struct TagzipFile__
{ int unused
; } zipFile__
;
65 typedef zipFile__
*zipFile
;
67 typedef voidp zipFile
;
72 #define ZIP_ERRNO (Z_ERRNO)
73 #define ZIP_PARAMERROR (-102)
74 #define ZIP_BADZIPFILE (-103)
75 #define ZIP_INTERNALERROR (-104)
78 # if MAX_MEM_LEVEL >= 8
79 # define DEF_MEM_LEVEL 8
81 # define DEF_MEM_LEVEL MAX_MEM_LEVEL
84 /* default memLevel */
86 /* tm_zip contain date/time info */
87 typedef struct tm_zip_s
89 uInt tm_sec
; /* seconds after the minute - [0,59] */
90 uInt tm_min
; /* minutes after the hour - [0,59] */
91 uInt tm_hour
; /* hours since midnight - [0,23] */
92 uInt tm_mday
; /* day of the month - [1,31] */
93 uInt tm_mon
; /* months since January - [0,11] */
94 uInt tm_year
; /* years - [1980..2044] */
99 tm_zip tmz_date
; /* date in understandable format */
100 uLong dosDate
; /* if dos_date == 0, tmu_date is used */
101 /* uLong flag; */ /* general purpose bit flag 2 bytes */
103 uLong internal_fa
; /* internal file attributes 2 bytes */
104 uLong external_fa
; /* external file attributes 4 bytes */
107 typedef const char* zipcharpc
;
110 #define APPEND_STATUS_CREATE (0)
111 #define APPEND_STATUS_CREATEAFTER (1)
112 #define APPEND_STATUS_ADDINZIP (2)
114 extern zipFile ZEXPORT zipOpen
OF((const char *pathname
, int append
));
117 pathname contain on Windows XP a filename like "c:\\zlib\\zlib113.zip" or on
118 an Unix computer "zlib/zlib113.zip".
119 if the file pathname exist and append==APPEND_STATUS_CREATEAFTER, the zip
120 will be created at the end of the file.
121 (useful if the file contain a self extractor code)
122 if the file pathname exist and append==APPEND_STATUS_ADDINZIP, we will
123 add files in existing zip (be sure you don't add file that doesn't exist)
124 If the zipfile cannot be opened, the return value is NULL.
125 Else, the return value is a zipFile Handle, usable with other function
129 /* Note : there is no delete function into a zipfile.
130 If you want delete file into a zipfile, you must open a zipfile, and create another
131 Of couse, you can use RAW reading and writing to copy the file you did not want delte
134 extern zipFile ZEXPORT zipOpen2
OF((const char *pathname
,
136 zipcharpc
* globalcomment
,
137 zlib_filefunc_def
* pzlib_filefunc_def
));
139 extern int ZEXPORT zipOpenNewFileInZip
OF((zipFile file
,
140 const char* filename
,
141 const zip_fileinfo
* zipfi
,
142 const void* extrafield_local
,
143 uInt size_extrafield_local
,
144 const void* extrafield_global
,
145 uInt size_extrafield_global
,
150 Open a file in the ZIP for writing.
151 filename : the filename in zip (if NULL, '-' without quote will be used
152 *zipfi contain supplemental information
153 if extrafield_local!=NULL and size_extrafield_local>0, extrafield_local
154 contains the extrafield data the the local header
155 if extrafield_global!=NULL and size_extrafield_global>0, extrafield_global
156 contains the extrafield data the the local header
157 if comment != NULL, comment contain the comment string
158 method contain the compression method (0 for store, Z_DEFLATED for deflate)
159 level contain the level of compression (can be Z_DEFAULT_COMPRESSION)
163 extern int ZEXPORT zipOpenNewFileInZip2
OF((zipFile file
,
164 const char* filename
,
165 const zip_fileinfo
* zipfi
,
166 const void* extrafield_local
,
167 uInt size_extrafield_local
,
168 const void* extrafield_global
,
169 uInt size_extrafield_global
,
176 Same than zipOpenNewFileInZip, except if raw=1, we write raw file
179 extern int ZEXPORT zipOpenNewFileInZip3
OF((zipFile file
,
180 const char* filename
,
181 const zip_fileinfo
* zipfi
,
182 const void* extrafield_local
,
183 uInt size_extrafield_local
,
184 const void* extrafield_global
,
185 uInt size_extrafield_global
,
193 const char* password
,
194 uLong crcForCtypting
));
197 Same than zipOpenNewFileInZip2, except
198 windowBits,memLevel,,strategy : see parameter strategy in deflateInit2
199 password : crypting password (NULL for no crypting)
200 crcForCtypting : crc of file to compress (needed for crypting)
204 extern int ZEXPORT zipWriteInFileInZip
OF((zipFile file
,
208 Write data in the zipfile
211 extern int ZEXPORT zipCloseFileInZip
OF((zipFile file
));
213 Close the current file in the zipfile
216 extern int ZEXPORT zipCloseFileInZipRaw
OF((zipFile file
,
217 uLong uncompressed_size
,
220 Close the current file in the zipfile, for fiel opened with
221 parameter raw=1 in zipOpenNewFileInZip2
222 uncompressed_size and crc32 are value for the uncompressed size
225 extern int ZEXPORT zipClose
OF((zipFile file
,
226 const char* global_comment
));