2 ===========================================================================
5 Copyright (C) 1999-2011 id Software LLC, a ZeniMax Media company.
7 This file is part of the Doom 3 GPL Source Code (?Doom 3 Source Code?).
9 Doom 3 Source Code is free software: you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation, either version 3 of the License, or
12 (at your option) any later version.
14 Doom 3 Source Code is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with Doom 3 Source Code. If not, see <http://www.gnu.org/licenses/>.
22 In addition, the Doom 3 Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 Source Code. If not, please request a copy in writing from id Software at the address below.
24 If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
26 ===========================================================================
33 #if defined(STRICTUNZIP) || defined(STRICTZIPUNZIP)
34 /* like the STRICT of WIN32, we define a pointer that cannot be converted
35 from (void*) without cast */
36 typedef struct TagunzFile__ { int unused; } unzFile__;
37 typedef unzFile__ *unzFile;
39 typedef void* unzFile;
42 /* tm_unz contain date/time info */
43 typedef struct tm_unz_s
45 unsigned int tm_sec; /* seconds after the minute - [0,59] */
46 unsigned int tm_min; /* minutes after the hour - [0,59] */
47 unsigned int tm_hour; /* hours since midnight - [0,23] */
48 unsigned int tm_mday; /* day of the month - [1,31] */
49 unsigned int tm_mon; /* months since January - [0,11] */
50 unsigned int tm_year; /* years - [1980..2044] */
53 /* unz_global_info structure contain global data about the ZIPfile
54 These data comes from the end of central dir */
55 typedef struct unz_global_info_s
57 unsigned long number_entry; /* total number of entries in the central dir on this disk */
58 unsigned long size_comment; /* size of the global comment of the zipfile */
62 /* unz_file_info contain information about a file in the zipfile */
63 typedef struct unz_file_info_s
65 unsigned long version; /* version made by 2 unsigned chars */
66 unsigned long version_needed; /* version needed to extract 2 unsigned chars */
67 unsigned long flag; /* general purpose bit flag 2 unsigned chars */
68 unsigned long compression_method; /* compression method 2 unsigned chars */
69 unsigned long dosDate; /* last mod file date in Dos fmt 4 unsigned chars */
70 unsigned long crc; /* crc-32 4 unsigned chars */
71 unsigned long compressed_size; /* compressed size 4 unsigned chars */
72 unsigned long uncompressed_size; /* uncompressed size 4 unsigned chars */
73 unsigned long size_filename; /* filename length 2 unsigned chars */
74 unsigned long size_file_extra; /* extra field length 2 unsigned chars */
75 unsigned long size_file_comment; /* file comment length 2 unsigned chars */
77 unsigned long disk_num_start; /* disk number start 2 unsigned chars */
78 unsigned long internal_fa; /* internal file attributes 2 unsigned chars */
79 unsigned long external_fa; /* external file attributes 4 unsigned chars */
84 /* unz_file_info_interntal contain internal info about a file in zipfile*/
85 typedef struct unz_file_info_internal_s
87 unsigned long offset_curfile;/* relative offset of static header 4 unsigned chars */
88 } unz_file_info_internal;
90 typedef void* (*alloc_func) (void* opaque, unsigned int items, unsigned int size);
91 typedef void (*free_func) (void* opaque, void* address);
93 struct internal_state;
95 typedef struct z_stream_s {
96 unsigned char *next_in; /* next input unsigned char */
97 unsigned int avail_in; /* number of unsigned chars available at next_in */
98 unsigned long total_in; /* total nb of input unsigned chars read so */
100 unsigned char *next_out; /* next output unsigned char should be put there */
101 unsigned int avail_out; /* remaining free space at next_out */
102 unsigned long total_out; /* total nb of unsigned chars output so */
104 char *msg; /* last error message, NULL if no error */
105 struct internal_state *state; /* not visible by applications */
107 alloc_func zalloc; /* used to allocate the internal state */
108 free_func zfree; /* used to free the internal state */
109 unsigned char* opaque; /* private data object passed to zalloc and zfree */
111 int data_type; /* best guess about the data type: ascii or binary */
112 unsigned long adler; /* adler32 value of the uncompressed data */
113 unsigned long reserved; /* reserved for future use */
116 typedef z_stream *z_streamp;
119 /* file_in_zip_read_info_s contain internal information about a file in zipfile,
120 when reading and decompress it */
123 char *read_buffer; /* internal buffer for compressed data */
124 z_stream stream; /* zLib stream structure for inflate */
126 unsigned long pos_in_zipfile; /* position in unsigned char on the zipfile, for fseek*/
127 unsigned long stream_initialised; /* flag set if stream structure is initialised*/
129 unsigned long offset_local_extrafield;/* offset of the static extra field */
130 unsigned int size_local_extrafield;/* size of the static extra field */
131 unsigned long pos_local_extrafield; /* position in the static extra field in read*/
133 unsigned long crc32; /* crc32 of all data uncompressed */
134 unsigned long crc32_wait; /* crc32 we must obtain after decompress all */
135 unsigned long rest_read_compressed; /* number of unsigned char to be decompressed */
136 unsigned long rest_read_uncompressed;/*number of unsigned char to be obtained after decomp*/
137 FILE* file; /* io structore of the zipfile */
138 unsigned long compression_method; /* compression method (0==store) */
139 unsigned long byte_before_the_zipfile;/* unsigned char before the zipfile, (>0 for sfx)*/
140 } file_in_zip_read_info_s;
143 /* unz_s contain internal information about the zipfile
147 FILE* file; /* io structore of the zipfile */
148 unz_global_info gi; /* public global information */
149 unsigned long byte_before_the_zipfile;/* unsigned char before the zipfile, (>0 for sfx)*/
150 unsigned long num_file; /* number of the current file in the zipfile*/
151 unsigned long pos_in_central_dir; /* pos of the current file in the central dir*/
152 unsigned long current_file_ok; /* flag about the usability of the current file*/
153 unsigned long central_pos; /* position of the beginning of the central dir*/
155 unsigned long size_central_dir; /* size of the central directory */
156 unsigned long offset_central_dir; /* offset of start of central directory with
157 respect to the starting disk number */
159 unz_file_info cur_file_info; /* public info about the current file in zip*/
160 unz_file_info_internal cur_file_info_internal; /* private info about it*/
161 file_in_zip_read_info_s* pfile_in_zip_read; /* structure about the current
162 file if we are decompressing it */
166 #define UNZ_END_OF_LIST_OF_FILE (-100)
167 #define UNZ_ERRNO (Z_ERRNO)
169 #define UNZ_PARAMERROR (-102)
170 #define UNZ_BADZIPFILE (-103)
171 #define UNZ_INTERNALERROR (-104)
172 #define UNZ_CRCERROR (-105)
174 #define UNZ_CASESENSITIVE 1
175 #define UNZ_NOTCASESENSITIVE 2
176 #define UNZ_OSDEFAULTCASE 0
178 extern int unzStringFileNameCompare (const char* fileName1, const char* fileName2, int iCaseSensitivity);
181 Compare two filename (fileName1,fileName2).
182 If iCaseSenisivity = 1, comparision is case sensitivity (like strcmp)
183 If iCaseSenisivity = 2, comparision is not case sensitivity (like strcmpi
185 If iCaseSenisivity = 0, case sensitivity is defaut of your operating system
186 (like 1 on Unix, 2 on Windows)
189 extern unzFile unzOpen (const char *path);
190 extern unzFile unzReOpen (const char* path, unzFile file);
193 Open a Zip file. path contain the full pathname (by example,
194 on a Windows NT computer "c:\\zlib\\zlib111.zip" or on an Unix computer
196 If the zipfile cannot be opened (file don't exist or in not valid), the
197 return value is NULL.
198 Else, the return value is a unzFile Handle, usable with other function
199 of this unzip package.
202 extern int unzClose (unzFile file);
205 Close a ZipFile opened with unzipOpen.
206 If there is files inside the .Zip opened with unzOpenCurrentFile (see later),
207 these files MUST be closed with unzipCloseCurrentFile before call unzipClose.
208 return UNZ_OK if there is no problem. */
210 extern int unzGetGlobalInfo (unzFile file, unz_global_info *pglobal_info);
213 Write info about the ZipFile in the *pglobal_info structure.
214 No preparation of the structure is needed
215 return UNZ_OK if there is no problem. */
218 extern int unzGetGlobalComment (unzFile file, char *szComment, unsigned long uSizeBuf);
221 Get the global comment string of the ZipFile, in the szComment buffer.
222 uSizeBuf is the size of the szComment buffer.
223 return the number of unsigned char copied or an error code <0
227 /***************************************************************************/
228 /* Unzip package allow you browse the directory of the zipfile */
230 extern int unzGoToFirstFile (unzFile file);
233 Set the current file of the zipfile to the first file.
234 return UNZ_OK if there is no problem
237 extern int unzGoToNextFile (unzFile file);
240 Set the current file of the zipfile to the next file.
241 return UNZ_OK if there is no problem
242 return UNZ_END_OF_LIST_OF_FILE if the actual file was the latest.
245 extern int unzGetCurrentFileInfoPosition (unzFile file, unsigned long *pos );
248 Get the position of the info of the current file in the zip.
249 return UNZ_OK if there is no problem
252 extern int unzSetCurrentFileInfoPosition (unzFile file, unsigned long pos );
255 Set the position of the info of the current file in the zip.
256 return UNZ_OK if there is no problem
259 extern int unzLocateFile (unzFile file, const char *szFileName, int iCaseSensitivity);
262 Try locate the file szFileName in the zipfile.
263 For the iCaseSensitivity signification, see unzStringFileNameCompare
266 UNZ_OK if the file is found. It becomes the current file.
267 UNZ_END_OF_LIST_OF_FILE if the file is not found
271 extern int unzGetCurrentFileInfo (unzFile file, unz_file_info *pfile_info, char *szFileName, unsigned long fileNameBufferSize, void *extraField, unsigned long extraFieldBufferSize, char *szComment, unsigned long commentBufferSize);
274 Get Info about the current file
275 if pfile_info!=NULL, the *pfile_info structure will contain somes info about
277 if szFileName!=NULL, the filemane string will be copied in szFileName
278 (fileNameBufferSize is the size of the buffer)
279 if extraField!=NULL, the extra field information will be copied in extraField
280 (extraFieldBufferSize is the size of the buffer).
281 This is the Central-header version of the extra field
282 if szComment!=NULL, the comment string of the file will be copied in szComment
283 (commentBufferSize is the size of the buffer)
286 /***************************************************************************/
287 /* for reading the content of the current zipfile, you can open it, read data
288 from it, and close it (you can close it before reading all the file)
291 extern int unzOpenCurrentFile (unzFile file);
294 Open for reading data the current file in the zipfile.
295 If there is no error, the return value is UNZ_OK.
298 extern int unzCloseCurrentFile (unzFile file);
301 Close the file in zip opened with unzOpenCurrentFile
302 Return UNZ_CRCERROR if all the file was read but the CRC is not good
306 extern int unzReadCurrentFile (unzFile file, void* buf, unsigned len);
309 Read unsigned chars from the current file (opened by unzOpenCurrentFile)
310 buf contain buffer where data must be copied
313 return the number of unsigned char copied if somes unsigned chars are copied
314 return 0 if the end of file was reached
315 return <0 with error code if there is an error
316 (UNZ_ERRNO for IO error, or zLib error for uncompress error)
319 extern long unztell(unzFile file);
322 Give the current position in uncompressed data
325 extern int unzeof (unzFile file);
328 return 1 if the end of file was reached, 0 elsewhere
331 extern int unzGetLocalExtrafield (unzFile file, void* buf, unsigned len);
334 Read extra field from the current file (opened by unzOpenCurrentFile)
335 This is the local-header version of the extra field (sometimes, there is
336 more info in the local-header version than in the central-header)
338 if buf==NULL, it return the size of the local extra field
340 if buf!=NULL, len is the size of the buffer, the extra header is copied in
342 the return value is the number of unsigned chars copied in buf, or (if <0)
346 #endif /* __UNZIP_H__ */