1 /* zip.h -- IO for compress .zip files using zlib 2 Version 1.01e, February 12th, 2005 3 4 Copyright (C) 1998-2005 Gilles Vollant 5 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 11 12 For uncompress .zip file, look at unzip.h 13 14 15 I WAIT FEEDBACK at mail info (at) winimage.com 16 Visit also http://www.winimage.com/zLibDll/unzip.html for evolution 17 18 Condition of use and distribution are the same than zlib : 19 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. 23 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: 27 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. 35 36 37 */ 38 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 44 */ 45 46 #ifndef _zip_H 47 #define _zip_H 48 49 #ifdef __cplusplus 50 extern "C" { 51 #endif 52 53 #if defined(USE_SYSTEM_ZLIB) 54 #include <zlib.h> 55 #else 56 #include "third_party/zlib/zlib.h" 57 #endif 58 59 #ifndef _ZLIBIOAPI_H 60 #include "ioapi.h" 61 #endif 62 63 #if defined(STRICTZIP) || defined(STRICTZIPUNZIP) 64 /* like the STRICT of WIN32, we define a pointer that cannot be converted 65 from (void*) without cast */ 66 typedef struct TagzipFile__ { int unused; } zipFile__; 67 typedef zipFile__ *zipFile; 68 #else 69 typedef voidp zipFile; 70 #endif 71 72 #define ZIP_OK (0) 73 #define ZIP_EOF (0) 74 #define ZIP_ERRNO (Z_ERRNO) 75 #define ZIP_PARAMERROR (-102) 76 #define ZIP_BADZIPFILE (-103) 77 #define ZIP_INTERNALERROR (-104) 78 79 #ifndef DEF_MEM_LEVEL 80 # if MAX_MEM_LEVEL >= 8 81 # define DEF_MEM_LEVEL 8 82 # else 83 # define DEF_MEM_LEVEL MAX_MEM_LEVEL 84 # endif 85 #endif 86 /* default memLevel */ 87 88 /* tm_zip contain date/time info */ 89 typedef struct tm_zip_s 90 { 91 uInt tm_sec; /* seconds after the minute - [0,59] */ 92 uInt tm_min; /* minutes after the hour - [0,59] */ 93 uInt tm_hour; /* hours since midnight - [0,23] */ 94 uInt tm_mday; /* day of the month - [1,31] */ 95 uInt tm_mon; /* months since January - [0,11] */ 96 uInt tm_year; /* years - [1980..2044] */ 97 } tm_zip; 98 99 typedef struct 100 { 101 tm_zip tmz_date; /* date in understandable format */ 102 uLong dosDate; /* if dos_date == 0, tmu_date is used */ 103 /* uLong flag; */ /* general purpose bit flag 2 bytes */ 104 105 uLong internal_fa; /* internal file attributes 2 bytes */ 106 uLong external_fa; /* external file attributes 4 bytes */ 107 } zip_fileinfo; 108 109 typedef const char* zipcharpc; 110 111 112 #define APPEND_STATUS_CREATE (0) 113 #define APPEND_STATUS_CREATEAFTER (1) 114 #define APPEND_STATUS_ADDINZIP (2) 115 116 extern zipFile ZEXPORT zipOpen OF((const char *pathname, int append)); 117 /* 118 Create a zipfile. 119 pathname contain on Windows XP a filename like "c:\\zlib\\zlib113.zip" or on 120 an Unix computer "zlib/zlib113.zip". 121 if the file pathname exist and append==APPEND_STATUS_CREATEAFTER, the zip 122 will be created at the end of the file. 123 (useful if the file contain a self extractor code) 124 if the file pathname exist and append==APPEND_STATUS_ADDINZIP, we will 125 add files in existing zip (be sure you don't add file that doesn't exist) 126 If the zipfile cannot be opened, the return value is NULL. 127 Else, the return value is a zipFile Handle, usable with other function 128 of this zip package. 129 */ 130 131 /* Note : there is no delete function into a zipfile. 132 If you want delete file into a zipfile, you must open a zipfile, and create another 133 Of couse, you can use RAW reading and writing to copy the file you did not want delte 134 */ 135 136 extern zipFile ZEXPORT zipOpen2 OF((const char *pathname, 137 int append, 138 zipcharpc* globalcomment, 139 zlib_filefunc_def* pzlib_filefunc_def)); 140 141 extern int ZEXPORT zipOpenNewFileInZip OF((zipFile file, 142 const char* filename, 143 const zip_fileinfo* zipfi, 144 const void* extrafield_local, 145 uInt size_extrafield_local, 146 const void* extrafield_global, 147 uInt size_extrafield_global, 148 const char* comment, 149 int method, 150 int level)); 151 /* 152 Open a file in the ZIP for writing. 153 filename : the filename in zip (if NULL, '-' without quote will be used 154 *zipfi contain supplemental information 155 if extrafield_local!=NULL and size_extrafield_local>0, extrafield_local 156 contains the extrafield data the the local header 157 if extrafield_global!=NULL and size_extrafield_global>0, extrafield_global 158 contains the extrafield data the the local header 159 if comment != NULL, comment contain the comment string 160 method contain the compression method (0 for store, Z_DEFLATED for deflate) 161 level contain the level of compression (can be Z_DEFAULT_COMPRESSION) 162 */ 163 164 165 extern int ZEXPORT zipOpenNewFileInZip2 OF((zipFile file, 166 const char* filename, 167 const zip_fileinfo* zipfi, 168 const void* extrafield_local, 169 uInt size_extrafield_local, 170 const void* extrafield_global, 171 uInt size_extrafield_global, 172 const char* comment, 173 int method, 174 int level, 175 int raw)); 176 177 /* 178 Same than zipOpenNewFileInZip, except if raw=1, we write raw file 179 */ 180 181 extern int ZEXPORT zipOpenNewFileInZip3 OF((zipFile file, 182 const char* filename, 183 const zip_fileinfo* zipfi, 184 const void* extrafield_local, 185 uInt size_extrafield_local, 186 const void* extrafield_global, 187 uInt size_extrafield_global, 188 const char* comment, 189 int method, 190 int level, 191 int raw, 192 int windowBits, 193 int memLevel, 194 int strategy, 195 const char* password, 196 uLong crcForCtypting)); 197 198 /* 199 Same than zipOpenNewFileInZip2, except 200 windowBits,memLevel,,strategy : see parameter strategy in deflateInit2 201 password : crypting password (NULL for no crypting) 202 crcForCtypting : crc of file to compress (needed for crypting) 203 */ 204 205 206 extern int ZEXPORT zipWriteInFileInZip OF((zipFile file, 207 const void* buf, 208 unsigned len)); 209 /* 210 Write data in the zipfile 211 */ 212 213 extern int ZEXPORT zipCloseFileInZip OF((zipFile file)); 214 /* 215 Close the current file in the zipfile 216 */ 217 218 extern int ZEXPORT zipCloseFileInZipRaw OF((zipFile file, 219 uLong uncompressed_size, 220 uLong crc32)); 221 /* 222 Close the current file in the zipfile, for fiel opened with 223 parameter raw=1 in zipOpenNewFileInZip2 224 uncompressed_size and crc32 are value for the uncompressed size 225 */ 226 227 extern int ZEXPORT zipClose OF((zipFile file, 228 const char* global_comment)); 229 /* 230 Close the zipfile 231 */ 232 233 #ifdef __cplusplus 234 } 235 #endif 236 237 #endif /* _zip_H */ 238
