/* unzip.h -- IO for uncompress .zip files using zlib
Version 1 . 1 , February 14 h , 2010
part of the MiniZip project - ( http : //www.winimage.com/zLibDll/minizip.html )
Copyright ( C ) 1998 - 2010 Gilles Vollant ( minizip ) ( http : //www.winimage.com/zLibDll/minizip.html )
Modifications of Unzip for Zip64
Copyright ( C ) 2007 - 2008 Even Rouault
Modifications for Zip64 support on both zip and unzip
Copyright ( C ) 2009 - 2010 Mathias Svensson ( http : //result42.com )
For more info read MiniZip_info . txt
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Condition of use and distribution are the same than zlib :
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 .
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 :
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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Changes
See header of unzip64 . c
*/
#ifndef _unz64_H
#define _unz64_H
#ifdef __cplusplus
extern "C" {
#endif
#ifndef _ZLIB_H
#include "zlib.h"
#endif
#ifndef _ZLIBIOAPI_H
#include "ioapi.h"
#endif
#ifdef HAVE_BZIP2
#include "bzlib.h"
#endif
#define Z_BZIP2ED 12
#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
#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 )
/* tm_unz contain date/time info */
typedef struct tm_unz_s
{
int tm_sec; /* seconds after the minute - [0,59] */
int tm_min; /* minutes after the hour - [0,59] */
int tm_hour; /* hours since midnight - [0,23] */
int tm_mday; /* day of the month - [1,31] */
int tm_mon; /* months since January - [0,11] */
int tm_year; /* years - [1980..2044] */
} tm_unz;
/* unz_global_info structure contain global data about the ZIPfile
These data comes from the end of central dir */
typedef struct unz_global_info64_s
{
ZPOS64_T 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_info64;
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;
/* unz_file_info contain information about a file in the zipfile */
typedef struct unz_file_info64_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 */
ZPOS64_T compressed_size; /* compressed size 8 bytes */
ZPOS64_T uncompressed_size; /* uncompressed size 8 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 */
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 */
tm_unz tmu_date;
} unz_file_info64;
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 */
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 */
tm_unz tmu_date;
} unz_file_info;
extern int ZEXPORT unzStringFileNameCompare(const char * fileName1,
const char * fileName2,
int iCaseSensitivity);
/*
Compare two filenames ( fileName1 , fileName2 ) .
If iCaseSensitivity = 1 , comparison is case sensitive ( like strcmp )
If iCaseSensitivity = 2 , comparison is not case sensitive ( like strcmpi
or strcasecmp )
If iCaseSensitivity = 0 , case sensitivity is default of your operating system
( like 1 on Unix , 2 on Windows )
*/
extern unzFile ZEXPORT unzOpen(const char *path);
extern unzFile ZEXPORT unzOpen64(const void *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 .
the " 64 " function take a const void * pointer , because the path is just the
value passed to the open64_file_func callback .
Under Windows , if UNICODE is defined , using fill_fopen64_filefunc , the path
is a pointer to a wide unicode string ( LPCTSTR is LPCWSTR ) , so const char *
does not describe the reality
*/
extern unzFile ZEXPORT unzOpen2(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 )
*/
extern unzFile ZEXPORT unzOpen2_64(const void *path,
zlib_filefunc64_def* pzlib_filefunc_def);
/*
Open a Zip file , like unz64Open , but provide a set of file low level API
for read / write the zip file ( see ioapi . h )
*/
extern int ZEXPORT unzClose(unzFile file);
/*
Close a ZipFile opened with unzOpen .
If there is files inside the . Zip opened with unzOpenCurrentFile ( see later ) ,
these files MUST be closed with unzCloseCurrentFile before call unzClose .
return UNZ_OK if there is no problem. */
extern int ZEXPORT unzGetGlobalInfo(unzFile file,
unz_global_info *pglobal_info);
extern int ZEXPORT unzGetGlobalInfo64(unzFile file,
unz_global_info64 *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. */
extern int ZEXPORT unzGetGlobalComment(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
*/
/***************************************************************************/
/* Unzip package allow you browse the directory of the zipfile */
extern int ZEXPORT unzGoToFirstFile(unzFile file);
/*
Set the current file of the zipfile to the first file .
return UNZ_OK if there is no problem
*/
extern int ZEXPORT unzGoToNextFile(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 .
*/
extern int ZEXPORT unzLocateFile(unzFile file,
const char *szFileName,
int iCaseSensitivity);
/*
Try locate the file szFileName in the zipfile .
For the iCaseSensitivity signification , see unzStringFileNameCompare
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
*/
/* ****************************************** */
/* 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;
extern int ZEXPORT unzGetFilePos(
unzFile file,
unz_file_pos* file_pos);
extern int ZEXPORT unzGoToFilePos(
unzFile file,
unz_file_pos* file_pos);
typedef struct unz64_file_pos_s
{
ZPOS64_T pos_in_zip_directory; /* offset in zip file directory */
ZPOS64_T num_of_file; /* # of file */
} unz64_file_pos;
extern int ZEXPORT unzGetFilePos64(
unzFile file,
unz64_file_pos* file_pos);
extern int ZEXPORT unzGoToFilePos64(
unzFile file,
const unz64_file_pos* file_pos);
/* ****************************************** */
extern int ZEXPORT unzGetCurrentFileInfo64(unzFile file,
unz_file_info64 *pfile_info,
char *szFileName,
uLong fileNameBufferSize,
void *extraField,
uLong extraFieldBufferSize,
char *szComment,
uLong commentBufferSize);
extern int ZEXPORT unzGetCurrentFileInfo(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 some 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 )
*/
/** Addition for GDAL : START */
extern ZPOS64_T ZEXPORT unzGetCurrentFileZStreamPos64(unzFile file);
/** Addition for GDAL : END */
/***************************************************************************/
/* 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 )
*/
extern int ZEXPORT unzOpenCurrentFile(unzFile file);
/*
Open for reading data the current file in the zipfile .
If there is no error , the return value is UNZ_OK .
*/
extern int ZEXPORT unzOpenCurrentFilePassword(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 .
*/
extern int ZEXPORT unzOpenCurrentFile2(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
*/
extern int ZEXPORT unzOpenCurrentFile3(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
*/
extern int ZEXPORT unzCloseCurrentFile(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
*/
extern int ZEXPORT unzReadCurrentFile(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 .
return the number of byte copied if some 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 )
*/
extern z_off_t ZEXPORT unztell(unzFile file);
extern ZPOS64_T ZEXPORT unztell64(unzFile file);
/*
Give the current position in uncompressed data
*/
extern int ZEXPORT unzeof(unzFile file);
/*
return 1 if the end of file was reached , 0 elsewhere
*/
extern int ZEXPORT unzGetLocalExtrafield(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 )
if buf = = NULL , it return the size of the local extra field
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
*/
/***************************************************************************/
/* Get the current file offset */
extern ZPOS64_T ZEXPORT unzGetOffset64 (unzFile file);
extern uLong ZEXPORT unzGetOffset (unzFile file);
/* Set the current file offset */
extern int ZEXPORT unzSetOffset64 (unzFile file, ZPOS64_T pos);
extern int ZEXPORT unzSetOffset (unzFile file, uLong pos);
#ifdef __cplusplus
}
#endif
#endif /* _unz64_H */
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