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1 /* unzip.h -- IO for uncompress .zip files using zlib
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2 Version 1.1, February 14h, 2010
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3 part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
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4
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5 Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
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6
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7 Modifications of Unzip for Zip64
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8 Copyright (C) 2007-2008 Even Rouault
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9
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10 Modifications for Zip64 support on both zip and unzip
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11 Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
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12
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13 For more info read MiniZip_info.txt
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14
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15 ---------------------------------------------------------------------------------
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16
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17 Condition of use and distribution are the same than zlib :
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18
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19 This software is provided 'as-is', without any express or implied
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20 warranty. In no event will the authors be held liable for any damages
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21 arising from the use of this software.
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22
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23 Permission is granted to anyone to use this software for any purpose,
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24 including commercial applications, and to alter it and redistribute it
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25 freely, subject to the following restrictions:
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26
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27 1. The origin of this software must not be misrepresented; you must not
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28 claim that you wrote the original software. If you use this software
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29 in a product, an acknowledgment in the product documentation would be
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30 appreciated but is not required.
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31 2. Altered source versions must be plainly marked as such, and must not be
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32 misrepresented as being the original software.
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33 3. This notice may not be removed or altered from any source distribution.
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34
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35 ---------------------------------------------------------------------------------
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36
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37 Changes
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38
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39 See header of unzip64.c
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40
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41 */
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42
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43 #ifndef _unz64_H
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44 #define _unz64_H
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45
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46 #ifdef __cplusplus
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47 extern "C" {
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48 #endif
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49
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50 #ifndef _ZLIB_H
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51 #include "zlib.h"
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52 #endif
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53
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54 #ifndef _ZLIBIOAPI_H
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55 #include "ioapi.h"
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56 #endif
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57
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58 #ifdef HAVE_BZIP2
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59 #include "bzlib.h"
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60 #endif
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61
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62 #define Z_BZIP2ED 12
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63
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64 #if defined(STRICTUNZIP) || defined(STRICTZIPUNZIP)
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65 /* like the STRICT of WIN32, we define a pointer that cannot be converted
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66 from (void*) without cast */
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67 typedef struct TagunzFile__ { int unused; } unzFile__;
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68 typedef unzFile__ *unzFile;
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69 #else
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70 typedef voidp unzFile;
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71 #endif
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72
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73
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74 #define UNZ_OK (0)
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75 #define UNZ_END_OF_LIST_OF_FILE (-100)
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76 #define UNZ_ERRNO (Z_ERRNO)
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77 #define UNZ_EOF (0)
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78 #define UNZ_PARAMERROR (-102)
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79 #define UNZ_BADZIPFILE (-103)
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80 #define UNZ_INTERNALERROR (-104)
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81 #define UNZ_CRCERROR (-105)
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82
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83 /* tm_unz contain date/time info */
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84 typedef struct tm_unz_s
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85 {
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86 uInt tm_sec; /* seconds after the minute - [0,59] */
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87 uInt tm_min; /* minutes after the hour - [0,59] */
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88 uInt tm_hour; /* hours since midnight - [0,23] */
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89 uInt tm_mday; /* day of the month - [1,31] */
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90 uInt tm_mon; /* months since January - [0,11] */
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91 uInt tm_year; /* years - [1980..2044] */
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92 } tm_unz;
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93
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94 /* unz_global_info structure contain global data about the ZIPfile
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95 These data comes from the end of central dir */
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96 typedef struct unz_global_info64_s
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97 {
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98 ZPOS64_T number_entry; /* total number of entries in
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99 the central dir on this disk */
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100 uLong size_comment; /* size of the global comment of the zipfile */
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101 } unz_global_info64;
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102
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103 typedef struct unz_global_info_s
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104 {
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105 uLong number_entry; /* total number of entries in
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106 the central dir on this disk */
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107 uLong size_comment; /* size of the global comment of the zipfile */
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108 } unz_global_info;
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109
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110 /* unz_file_info contain information about a file in the zipfile */
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111 typedef struct unz_file_info64_s
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112 {
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113 uLong version; /* version made by 2 bytes */
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114 uLong version_needed; /* version needed to extract 2 bytes */
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115 uLong flag; /* general purpose bit flag 2 bytes */
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116 uLong compression_method; /* compression method 2 bytes */
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117 uLong dosDate; /* last mod file date in Dos fmt 4 bytes */
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118 uLong crc; /* crc-32 4 bytes */
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119 ZPOS64_T compressed_size; /* compressed size 8 bytes */
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120 ZPOS64_T uncompressed_size; /* uncompressed size 8 bytes */
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121 uLong size_filename; /* filename length 2 bytes */
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122 uLong size_file_extra; /* extra field length 2 bytes */
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123 uLong size_file_comment; /* file comment length 2 bytes */
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124
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125 uLong disk_num_start; /* disk number start 2 bytes */
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126 uLong internal_fa; /* internal file attributes 2 bytes */
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127 uLong external_fa; /* external file attributes 4 bytes */
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128
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129 tm_unz tmu_date;
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130 } unz_file_info64;
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131
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132 typedef struct unz_file_info_s
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133 {
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134 uLong version; /* version made by 2 bytes */
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135 uLong version_needed; /* version needed to extract 2 bytes */
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136 uLong flag; /* general purpose bit flag 2 bytes */
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137 uLong compression_method; /* compression method 2 bytes */
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138 uLong dosDate; /* last mod file date in Dos fmt 4 bytes */
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139 uLong crc; /* crc-32 4 bytes */
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140 uLong compressed_size; /* compressed size 4 bytes */
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141 uLong uncompressed_size; /* uncompressed size 4 bytes */
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142 uLong size_filename; /* filename length 2 bytes */
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143 uLong size_file_extra; /* extra field length 2 bytes */
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144 uLong size_file_comment; /* file comment length 2 bytes */
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145
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146 uLong disk_num_start; /* disk number start 2 bytes */
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147 uLong internal_fa; /* internal file attributes 2 bytes */
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148 uLong external_fa; /* external file attributes 4 bytes */
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149
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150 tm_unz tmu_date;
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151 } unz_file_info;
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152
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153 extern int ZEXPORT unzStringFileNameCompare OF ((const char* fileName1,
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154 const char* fileName2,
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155 int iCaseSensitivity));
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156 /*
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157 Compare two filename (fileName1,fileName2).
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158 If iCaseSenisivity = 1, comparision is case sensitivity (like strcmp)
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159 If iCaseSenisivity = 2, comparision is not case sensitivity (like strcmpi
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160 or strcasecmp)
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161 If iCaseSenisivity = 0, case sensitivity is defaut of your operating system
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162 (like 1 on Unix, 2 on Windows)
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163 */
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164
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165
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166 extern unzFile ZEXPORT unzOpen OF((const char *path));
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167 extern unzFile ZEXPORT unzOpen64 OF((const void *path));
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168 /*
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169 Open a Zip file. path contain the full pathname (by example,
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170 on a Windows XP computer "c:\\zlib\\zlib113.zip" or on an Unix computer
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171 "zlib/zlib113.zip".
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172 If the zipfile cannot be opened (file don't exist or in not valid), the
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173 return value is NULL.
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174 Else, the return value is a unzFile Handle, usable with other function
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175 of this unzip package.
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176 the "64" function take a const void* pointer, because the path is just the
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177 value passed to the open64_file_func callback.
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178 Under Windows, if UNICODE is defined, using fill_fopen64_filefunc, the path
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179 is a pointer to a wide unicode string (LPCTSTR is LPCWSTR), so const char*
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180 does not describe the reality
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181 */
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182
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183
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184 extern unzFile ZEXPORT unzOpen2 OF((const char *path,
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185 zlib_filefunc_def* pzlib_filefunc_def));
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186 /*
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187 Open a Zip file, like unzOpen, but provide a set of file low level API
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188 for read/write the zip file (see ioapi.h)
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189 */
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190
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191 extern unzFile ZEXPORT unzOpen2_64 OF((const void *path,
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192 zlib_filefunc64_def* pzlib_filefunc_def));
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193 /*
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194 Open a Zip file, like unz64Open, but provide a set of file low level API
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195 for read/write the zip file (see ioapi.h)
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196 */
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197
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198 extern int ZEXPORT unzClose OF((unzFile file));
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199 /*
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200 Close a ZipFile opened with unzipOpen.
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201 If there is files inside the .Zip opened with unzOpenCurrentFile (see later),
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202 these files MUST be closed with unzipCloseCurrentFile before call unzipClose.
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203 return UNZ_OK if there is no problem. */
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204
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205 extern int ZEXPORT unzGetGlobalInfo OF((unzFile file,
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206 unz_global_info *pglobal_info));
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207
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208 extern int ZEXPORT unzGetGlobalInfo64 OF((unzFile file,
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209 unz_global_info64 *pglobal_info));
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210 /*
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211 Write info about the ZipFile in the *pglobal_info structure.
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212 No preparation of the structure is needed
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213 return UNZ_OK if there is no problem. */
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214
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215
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216 extern int ZEXPORT unzGetGlobalComment OF((unzFile file,
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217 char *szComment,
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218 uLong uSizeBuf));
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219 /*
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220 Get the global comment string of the ZipFile, in the szComment buffer.
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221 uSizeBuf is the size of the szComment buffer.
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222 return the number of byte copied or an error code <0
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223 */
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224
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225
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226 /***************************************************************************/
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227 /* Unzip package allow you browse the directory of the zipfile */
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228
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229 extern int ZEXPORT unzGoToFirstFile OF((unzFile file));
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230 /*
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231 Set the current file of the zipfile to the first file.
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232 return UNZ_OK if there is no problem
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233 */
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234
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235 extern int ZEXPORT unzGoToNextFile OF((unzFile file));
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236 /*
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237 Set the current file of the zipfile to the next file.
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238 return UNZ_OK if there is no problem
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239 return UNZ_END_OF_LIST_OF_FILE if the actual file was the latest.
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240 */
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241
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242 extern int ZEXPORT unzLocateFile OF((unzFile file,
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243 const char *szFileName,
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244 int iCaseSensitivity));
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245 /*
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246 Try locate the file szFileName in the zipfile.
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247 For the iCaseSensitivity signification, see unzStringFileNameCompare
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248
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249 return value :
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250 UNZ_OK if the file is found. It becomes the current file.
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251 UNZ_END_OF_LIST_OF_FILE if the file is not found
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252 */
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253
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254
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255 /* ****************************************** */
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256 /* Ryan supplied functions */
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257 /* unz_file_info contain information about a file in the zipfile */
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258 typedef struct unz_file_pos_s
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259 {
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260 uLong pos_in_zip_directory; /* offset in zip file directory */
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261 uLong num_of_file; /* # of file */
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262 } unz_file_pos;
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263
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264 extern int ZEXPORT unzGetFilePos(
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265 unzFile file,
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266 unz_file_pos* file_pos);
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267
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268 extern int ZEXPORT unzGoToFilePos(
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269 unzFile file,
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270 unz_file_pos* file_pos);
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271
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272 typedef struct unz64_file_pos_s
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273 {
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274 ZPOS64_T pos_in_zip_directory; /* offset in zip file directory */
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275 ZPOS64_T num_of_file; /* # of file */
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276 } unz64_file_pos;
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277
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278 extern int ZEXPORT unzGetFilePos64(
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279 unzFile file,
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280 unz64_file_pos* file_pos);
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281
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282 extern int ZEXPORT unzGoToFilePos64(
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283 unzFile file,
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284 const unz64_file_pos* file_pos);
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285
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286 /* ****************************************** */
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287
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288 extern int ZEXPORT unzGetCurrentFileInfo64 OF((unzFile file,
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289 unz_file_info64 *pfile_info,
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290 char *szFileName,
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291 uLong fileNameBufferSize,
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292 void *extraField,
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293 uLong extraFieldBufferSize,
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294 char *szComment,
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295 uLong commentBufferSize));
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296
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297 extern int ZEXPORT unzGetCurrentFileInfo OF((unzFile file,
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298 unz_file_info *pfile_info,
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299 char *szFileName,
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300 uLong fileNameBufferSize,
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301 void *extraField,
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302 uLong extraFieldBufferSize,
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303 char *szComment,
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304 uLong commentBufferSize));
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305 /*
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306 Get Info about the current file
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307 if pfile_info!=NULL, the *pfile_info structure will contain somes info about
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308 the current file
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309 if szFileName!=NULL, the filemane string will be copied in szFileName
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310 (fileNameBufferSize is the size of the buffer)
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311 if extraField!=NULL, the extra field information will be copied in extraField
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312 (extraFieldBufferSize is the size of the buffer).
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313 This is the Central-header version of the extra field
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314 if szComment!=NULL, the comment string of the file will be copied in szComment
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315 (commentBufferSize is the size of the buffer)
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316 */
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317
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318
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319 /** Addition for GDAL : START */
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320
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321 extern ZPOS64_T ZEXPORT unzGetCurrentFileZStreamPos64 OF((unzFile file));
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322
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323 /** Addition for GDAL : END */
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324
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325
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326 /***************************************************************************/
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327 /* for reading the content of the current zipfile, you can open it, read data
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328 from it, and close it (you can close it before reading all the file)
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329 */
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330
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331 extern int ZEXPORT unzOpenCurrentFile OF((unzFile file));
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332 /*
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333 Open for reading data the current file in the zipfile.
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334 If there is no error, the return value is UNZ_OK.
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335 */
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336
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337 extern int ZEXPORT unzOpenCurrentFilePassword OF((unzFile file,
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338 const char* password));
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339 /*
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340 Open for reading data the current file in the zipfile.
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341 password is a crypting password
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342 If there is no error, the return value is UNZ_OK.
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343 */
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344
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345 extern int ZEXPORT unzOpenCurrentFile2 OF((unzFile file,
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346 int* method,
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347 int* level,
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348 int raw));
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349 /*
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350 Same than unzOpenCurrentFile, but open for read raw the file (not uncompress)
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351 if raw==1
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352 *method will receive method of compression, *level will receive level of
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353 compression
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354 note : you can set level parameter as NULL (if you did not want known level,
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355 but you CANNOT set method parameter as NULL
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356 */
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357
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358 extern int ZEXPORT unzOpenCurrentFile3 OF((unzFile file,
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359 int* method,
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360 int* level,
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361 int raw,
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362 const char* password));
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363 /*
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364 Same than unzOpenCurrentFile, but open for read raw the file (not uncompress)
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365 if raw==1
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366 *method will receive method of compression, *level will receive level of
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367 compression
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368 note : you can set level parameter as NULL (if you did not want known level,
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369 but you CANNOT set method parameter as NULL
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370 */
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371
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372
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373 extern int ZEXPORT unzCloseCurrentFile OF((unzFile file));
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374 /*
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375 Close the file in zip opened with unzOpenCurrentFile
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376 Return UNZ_CRCERROR if all the file was read but the CRC is not good
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377 */
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378
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379 extern int ZEXPORT unzReadCurrentFile OF((unzFile file,
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380 voidp buf,
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381 unsigned len));
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382 /*
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383 Read bytes from the current file (opened by unzOpenCurrentFile)
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384 buf contain buffer where data must be copied
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385 len the size of buf.
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386
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387 return the number of byte copied if somes bytes are copied
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388 return 0 if the end of file was reached
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389 return <0 with error code if there is an error
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390 (UNZ_ERRNO for IO error, or zLib error for uncompress error)
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391 */
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392
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393 extern z_off_t ZEXPORT unztell OF((unzFile file));
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394
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395 extern ZPOS64_T ZEXPORT unztell64 OF((unzFile file));
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396 /*
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397 Give the current position in uncompressed data
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398 */
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399
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400 extern int ZEXPORT unzeof OF((unzFile file));
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401 /*
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402 return 1 if the end of file was reached, 0 elsewhere
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403 */
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404
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405 extern int ZEXPORT unzGetLocalExtrafield OF((unzFile file,
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406 voidp buf,
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407 unsigned len));
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408 /*
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409 Read extra field from the current file (opened by unzOpenCurrentFile)
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410 This is the local-header version of the extra field (sometimes, there is
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411 more info in the local-header version than in the central-header)
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412
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413 if buf==NULL, it return the size of the local extra field
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414
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415 if buf!=NULL, len is the size of the buffer, the extra header is copied in
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416 buf.
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417 the return value is the number of bytes copied in buf, or (if <0)
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418 the error code
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419 */
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420
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421 /***************************************************************************/
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422
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423 /* Get the current file offset */
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424 extern ZPOS64_T ZEXPORT unzGetOffset64 (unzFile file);
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425 extern uLong ZEXPORT unzGetOffset (unzFile file);
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426
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427 /* Set the current file offset */
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428 extern int ZEXPORT unzSetOffset64 (unzFile file, ZPOS64_T pos);
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429 extern int ZEXPORT unzSetOffset (unzFile file, uLong pos);
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430
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431
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432
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433 #ifdef __cplusplus
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434 }
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435 #endif
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436
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437 #endif /* _unz64_H */
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