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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