0,0 → 1,354 |
/* unzip.h -- IO for uncompress .zip files using zlib |
Version 1.01e, February 12th, 2005 |
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Copyright (C) 1998-2005 Gilles Vollant |
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This unzip package allow extract file from .ZIP file, compatible with PKZip 2.04g |
WinZip, InfoZip tools and compatible. |
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Multi volume ZipFile (span) are not supported. |
Encryption compatible with pkzip 2.04g only supported |
Old compressions used by old PKZip 1.x are not supported |
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I WAIT FEEDBACK at mail info@winimage.com |
Visit also http://www.winimage.com/zLibDll/unzip.htm for evolution |
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Condition of use and distribution are the same than zlib : |
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This software is provided 'as-is', without any express or implied |
warranty. In no event will the authors be held liable for any damages |
arising from the use of this software. |
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Permission is granted to anyone to use this software for any purpose, |
including commercial applications, and to alter it and redistribute it |
freely, subject to the following restrictions: |
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1. The origin of this software must not be misrepresented; you must not |
claim that you wrote the original software. If you use this software |
in a product, an acknowledgment in the product documentation would be |
appreciated but is not required. |
2. Altered source versions must be plainly marked as such, and must not be |
misrepresented as being the original software. |
3. This notice may not be removed or altered from any source distribution. |
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*/ |
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/* for more info about .ZIP format, see |
http://www.info-zip.org/pub/infozip/doc/appnote-981119-iz.zip |
http://www.info-zip.org/pub/infozip/doc/ |
PkWare has also a specification at : |
ftp://ftp.pkware.com/probdesc.zip |
*/ |
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#ifndef _unz_H |
#define _unz_H |
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#ifdef __cplusplus |
extern "C" { |
#endif |
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#ifndef _ZLIB_H |
#include "zlib.h" |
#endif |
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#ifndef _ZLIBIOAPI_H |
#include "ioapi.h" |
#endif |
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#if defined(STRICTUNZIP) || defined(STRICTZIPUNZIP) |
/* like the STRICT of WIN32, we define a pointer that cannot be converted |
from (void*) without cast */ |
typedef struct TagunzFile__ { int unused; } unzFile__; |
typedef unzFile__ *unzFile; |
#else |
typedef voidp unzFile; |
#endif |
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#define UNZ_OK (0) |
#define UNZ_END_OF_LIST_OF_FILE (-100) |
#define UNZ_ERRNO (Z_ERRNO) |
#define UNZ_EOF (0) |
#define UNZ_PARAMERROR (-102) |
#define UNZ_BADZIPFILE (-103) |
#define UNZ_INTERNALERROR (-104) |
#define UNZ_CRCERROR (-105) |
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/* tm_unz contain date/time info */ |
typedef struct tm_unz_s |
{ |
uInt tm_sec; /* seconds after the minute - [0,59] */ |
uInt tm_min; /* minutes after the hour - [0,59] */ |
uInt tm_hour; /* hours since midnight - [0,23] */ |
uInt tm_mday; /* day of the month - [1,31] */ |
uInt tm_mon; /* months since January - [0,11] */ |
uInt tm_year; /* years - [1980..2044] */ |
} tm_unz; |
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/* unz_global_info structure contain global data about the ZIPfile |
These data comes from the end of central dir */ |
typedef struct unz_global_info_s |
{ |
uLong number_entry; /* total number of entries in |
the central dir on this disk */ |
uLong size_comment; /* size of the global comment of the zipfile */ |
} unz_global_info; |
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/* unz_file_info contain information about a file in the zipfile */ |
typedef struct unz_file_info_s |
{ |
uLong version; /* version made by 2 bytes */ |
uLong version_needed; /* version needed to extract 2 bytes */ |
uLong flag; /* general purpose bit flag 2 bytes */ |
uLong compression_method; /* compression method 2 bytes */ |
uLong dosDate; /* last mod file date in Dos fmt 4 bytes */ |
uLong crc; /* crc-32 4 bytes */ |
uLong compressed_size; /* compressed size 4 bytes */ |
uLong uncompressed_size; /* uncompressed size 4 bytes */ |
uLong size_filename; /* filename length 2 bytes */ |
uLong size_file_extra; /* extra field length 2 bytes */ |
uLong size_file_comment; /* file comment length 2 bytes */ |
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uLong disk_num_start; /* disk number start 2 bytes */ |
uLong internal_fa; /* internal file attributes 2 bytes */ |
uLong external_fa; /* external file attributes 4 bytes */ |
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tm_unz tmu_date; |
} unz_file_info; |
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extern int ZEXPORT unzStringFileNameCompare OF ((const char* fileName1, |
const char* fileName2, |
int iCaseSensitivity)); |
/* |
Compare two filename (fileName1,fileName2). |
If iCaseSenisivity = 1, comparision is case sensitivity (like strcmp) |
If iCaseSenisivity = 2, comparision is not case sensitivity (like strcmpi |
or strcasecmp) |
If iCaseSenisivity = 0, case sensitivity is defaut of your operating system |
(like 1 on Unix, 2 on Windows) |
*/ |
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extern unzFile ZEXPORT unzOpen OF((const char *path)); |
/* |
Open a Zip file. path contain the full pathname (by example, |
on a Windows XP computer "c:\\zlib\\zlib113.zip" or on an Unix computer |
"zlib/zlib113.zip". |
If the zipfile cannot be opened (file don't exist or in not valid), the |
return value is NULL. |
Else, the return value is a unzFile Handle, usable with other function |
of this unzip package. |
*/ |
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extern unzFile ZEXPORT unzOpen2 OF((const char *path, |
zlib_filefunc_def* pzlib_filefunc_def)); |
/* |
Open a Zip file, like unzOpen, but provide a set of file low level API |
for read/write the zip file (see ioapi.h) |
*/ |
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extern int ZEXPORT unzClose OF((unzFile file)); |
/* |
Close a ZipFile opened with unzipOpen. |
If there is files inside the .Zip opened with unzOpenCurrentFile (see later), |
these files MUST be closed with unzipCloseCurrentFile before call unzipClose. |
return UNZ_OK if there is no problem. */ |
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extern int ZEXPORT unzGetGlobalInfo OF((unzFile file, |
unz_global_info *pglobal_info)); |
/* |
Write info about the ZipFile in the *pglobal_info structure. |
No preparation of the structure is needed |
return UNZ_OK if there is no problem. */ |
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extern int ZEXPORT unzGetGlobalComment OF((unzFile file, |
char *szComment, |
uLong uSizeBuf)); |
/* |
Get the global comment string of the ZipFile, in the szComment buffer. |
uSizeBuf is the size of the szComment buffer. |
return the number of byte copied or an error code <0 |
*/ |
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/***************************************************************************/ |
/* Unzip package allow you browse the directory of the zipfile */ |
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extern int ZEXPORT unzGoToFirstFile OF((unzFile file)); |
/* |
Set the current file of the zipfile to the first file. |
return UNZ_OK if there is no problem |
*/ |
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extern int ZEXPORT unzGoToNextFile OF((unzFile file)); |
/* |
Set the current file of the zipfile to the next file. |
return UNZ_OK if there is no problem |
return UNZ_END_OF_LIST_OF_FILE if the actual file was the latest. |
*/ |
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extern int ZEXPORT unzLocateFile OF((unzFile file, |
const char *szFileName, |
int iCaseSensitivity)); |
/* |
Try locate the file szFileName in the zipfile. |
For the iCaseSensitivity signification, see unzStringFileNameCompare |
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return value : |
UNZ_OK if the file is found. It becomes the current file. |
UNZ_END_OF_LIST_OF_FILE if the file is not found |
*/ |
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/* ****************************************** */ |
/* Ryan supplied functions */ |
/* unz_file_info contain information about a file in the zipfile */ |
typedef struct unz_file_pos_s |
{ |
uLong pos_in_zip_directory; /* offset in zip file directory */ |
uLong num_of_file; /* # of file */ |
} unz_file_pos; |
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extern int ZEXPORT unzGetFilePos( |
unzFile file, |
unz_file_pos* file_pos); |
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extern int ZEXPORT unzGoToFilePos( |
unzFile file, |
unz_file_pos* file_pos); |
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/* ****************************************** */ |
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extern int ZEXPORT unzGetCurrentFileInfo OF((unzFile file, |
unz_file_info *pfile_info, |
char *szFileName, |
uLong fileNameBufferSize, |
void *extraField, |
uLong extraFieldBufferSize, |
char *szComment, |
uLong commentBufferSize)); |
/* |
Get Info about the current file |
if pfile_info!=NULL, the *pfile_info structure will contain somes info about |
the current file |
if szFileName!=NULL, the filemane string will be copied in szFileName |
(fileNameBufferSize is the size of the buffer) |
if extraField!=NULL, the extra field information will be copied in extraField |
(extraFieldBufferSize is the size of the buffer). |
This is the Central-header version of the extra field |
if szComment!=NULL, the comment string of the file will be copied in szComment |
(commentBufferSize is the size of the buffer) |
*/ |
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/***************************************************************************/ |
/* for reading the content of the current zipfile, you can open it, read data |
from it, and close it (you can close it before reading all the file) |
*/ |
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extern int ZEXPORT unzOpenCurrentFile OF((unzFile file)); |
/* |
Open for reading data the current file in the zipfile. |
If there is no error, the return value is UNZ_OK. |
*/ |
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extern int ZEXPORT unzOpenCurrentFilePassword OF((unzFile file, |
const char* password)); |
/* |
Open for reading data the current file in the zipfile. |
password is a crypting password |
If there is no error, the return value is UNZ_OK. |
*/ |
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extern int ZEXPORT unzOpenCurrentFile2 OF((unzFile file, |
int* method, |
int* level, |
int raw)); |
/* |
Same than unzOpenCurrentFile, but open for read raw the file (not uncompress) |
if raw==1 |
*method will receive method of compression, *level will receive level of |
compression |
note : you can set level parameter as NULL (if you did not want known level, |
but you CANNOT set method parameter as NULL |
*/ |
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extern int ZEXPORT unzOpenCurrentFile3 OF((unzFile file, |
int* method, |
int* level, |
int raw, |
const char* password)); |
/* |
Same than unzOpenCurrentFile, but open for read raw the file (not uncompress) |
if raw==1 |
*method will receive method of compression, *level will receive level of |
compression |
note : you can set level parameter as NULL (if you did not want known level, |
but you CANNOT set method parameter as NULL |
*/ |
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extern int ZEXPORT unzCloseCurrentFile OF((unzFile file)); |
/* |
Close the file in zip opened with unzOpenCurrentFile |
Return UNZ_CRCERROR if all the file was read but the CRC is not good |
*/ |
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extern int ZEXPORT unzReadCurrentFile OF((unzFile file, |
voidp buf, |
unsigned len)); |
/* |
Read bytes from the current file (opened by unzOpenCurrentFile) |
buf contain buffer where data must be copied |
len the size of buf. |
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return the number of byte copied if somes bytes are copied |
return 0 if the end of file was reached |
return <0 with error code if there is an error |
(UNZ_ERRNO for IO error, or zLib error for uncompress error) |
*/ |
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extern z_off_t ZEXPORT unztell OF((unzFile file)); |
/* |
Give the current position in uncompressed data |
*/ |
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extern int ZEXPORT unzeof OF((unzFile file)); |
/* |
return 1 if the end of file was reached, 0 elsewhere |
*/ |
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extern int ZEXPORT unzGetLocalExtrafield OF((unzFile file, |
voidp buf, |
unsigned len)); |
/* |
Read extra field from the current file (opened by unzOpenCurrentFile) |
This is the local-header version of the extra field (sometimes, there is |
more info in the local-header version than in the central-header) |
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if buf==NULL, it return the size of the local extra field |
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if buf!=NULL, len is the size of the buffer, the extra header is copied in |
buf. |
the return value is the number of bytes copied in buf, or (if <0) |
the error code |
*/ |
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/***************************************************************************/ |
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/* Get the current file offset */ |
extern uLong ZEXPORT unzGetOffset (unzFile file); |
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/* Set the current file offset */ |
extern int ZEXPORT unzSetOffset (unzFile file, uLong pos); |
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#ifdef __cplusplus |
} |
#endif |
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#endif /* _unz_H */ |
Property changes: |
Added: svn:executable |
+* |
\ No newline at end of property |