#define FSEEKO_FUNC(stream, offset, origin) fseeko64(stream, offset, origin)

#endif

#include "ioapi.h"

voidpf call_zopen64 (const zlib_filefunc64_32_def* pfilefunc,const void*filename,int mode)

p_filefunc64_32->ztell32_file = p_filefunc32->ztell_file;

}

static voidpf ZCALLBACK fopen_file_func OF((voidpf opaque, const char* filename, int mode));

static uLong ZCALLBACK fread_file_func OF((voidpf opaque, voidpf stream, void* buf, uLong size));

static uLong ZCALLBACK fwrite_file_func OF((voidpf opaque, voidpf stream, const void* buf,uLong size));

return file;

}

static uLong ZCALLBACK fread_file_func (voidpf opaque, voidpf stream, void* buf, uLong size)

{

uLong ret;

return ret;

}

static ZPOS64_T ZCALLBACK ftell64_file_func (voidpf opaque, voidpf stream)

{

ZPOS64_T ret;

return ret;

}

static int ZCALLBACK fclose_file_func (voidpf opaque, voidpf stream)

{

int ret;

extern "C" {

#endif

#define ZLIB_FILEFUNC_SEEK_CUR (1)

#define ZLIB_FILEFUNC_SEEK_END (2)

#define ZLIB_FILEFUNC_SEEK_SET (0)

#define ZLIB_FILEFUNC_MODE_EXISTING (4)

#define ZLIB_FILEFUNC_MODE_CREATE (8)

#ifndef ZCALLBACK

#if (defined(WIN32) || defined(_WIN32) || defined (WINDOWS) || defined (_WINDOWS)) && defined(CALLBACK) && defined (USEWINDOWS_CALLBACK)

#define ZCALLBACK CALLBACK

#endif

#endif

typedef voidpf (ZCALLBACK *open_file_func) OF((voidpf opaque, const char* filename, int mode));

typedef uLong (ZCALLBACK *read_file_func) OF((voidpf opaque, voidpf stream, void* buf, uLong size));

typedef uLong (ZCALLBACK *write_file_func) OF((voidpf opaque, voidpf stream, const void* buf, uLong size));

typedef long (ZCALLBACK *tell_file_func) OF((voidpf opaque, voidpf stream));

typedef long (ZCALLBACK *seek_file_func) OF((voidpf opaque, voidpf stream, uLong offset, int origin));

/* here is the "old" 32 bits structure structure */

typedef struct zlib_filefunc_def_s

{

seek_file_func zseek32_file;

} zlib_filefunc64_32_def;

#define ZREAD64(filefunc,filestream,buf,size) ((*((filefunc).zfile_func64.zread_file)) ((filefunc).zfile_func64.opaque,filestream,buf,size))

#define ZWRITE64(filefunc,filestream,buf,size) ((*((filefunc).zfile_func64.zwrite_file)) ((filefunc).zfile_func64.opaque,filestream,buf,size))

//#define ZTELL64(filefunc,filestream) ((*((filefunc).ztell64_file)) ((filefunc).opaque,filestream))

For more info read MiniZip_info.txt

------------------------------------------------------------------------------------

Decryption code comes from crypt.c by Info-ZIP but has been greatly reduced in terms of

compatibility with older software. The following is from the original crypt.c.

Copyright (C) 2007-2008 Even Rouault

Oct-2009 - Mathias Svensson - Removed cpl_* from symbol names (Even Rouault added them but since this is now moved to a new project (minizip64) I renamed them again).

Oct-2009 - Mathias Svensson - Fixed problem if uncompressed size was > 4G and compressed size was <4G

should only read the compressed/uncompressed size from the Zip64 format if

*/

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

# include <errno.h>

#endif

#ifndef local

# define local static

#endif

/* compile with -Dlocal if your debugger can't find static symbols */

#ifndef CASESENSITIVITYDEFAULT_NO

# if !defined(unix) && !defined(CASESENSITIVITYDEFAULT_YES)

# define CASESENSITIVITYDEFAULT_NO

# endif

#endif

#ifndef UNZ_BUFSIZE

#define UNZ_BUFSIZE (16384)

#endif

#define SIZECENTRALDIRITEM (0x2e)

#define SIZEZIPLOCALHEADER (0x1e)

/* unz_file_info_interntal contain internal info about a file in zipfile*/

typedef struct unz_file_info64_internal_s

{

ZPOS64_T offset_curfile;/* relative offset of local header 8 bytes */

} unz_file_info64_internal;

/* file_in_zip_read_info_s contain internal information about a file in zipfile,

when reading and decompress it */

typedef struct

int raw;

} file_in_zip64_read_info_s;

/* unz64_s contain internal information about the zipfile

*/

typedef struct

# endif

} unz64_s;

#ifndef NOUNCRYPT

#include "crypt.h"

#endif

/* ===========================================================================

Read a byte from a gz_stream; update next_in and avail_in. Return EOF

for end of file.

*/

local int unz64local_getByte OF((

const zlib_filefunc64_32_def* pzlib_filefunc_def,

voidpf filestream,

}

}

/* ===========================================================================

Reads a long in LSB order from the given gz_stream. Sets

*/

voidpf filestream,

ZPOS64_T *pX));

local int unz64local_getLong64 (const zlib_filefunc64_32_def* pzlib_filefunc_def,

voidpf filestream,

ZPOS64_T *pX)

}

}

#ifdef CASESENSITIVITYDEFAULT_NO

#define CASESENSITIVITYDEFAULTVALUE 2

#else

if (ZSEEK64(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0)

return 0;

uSizeFile = ZTELL64(*pzlib_filefunc_def,filestream);

if (uMaxBack>uSizeFile)

return uPosFound;

}

/*

Locate the Central directory 64 of a zipfile (at the end, just before

the global comment)

if (ZSEEK64(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0)

return 0;

uSizeFile = ZTELL64(*pzlib_filefunc_def,filestream);

if (uMaxBack>uSizeFile)

us.z_filefunc = *pzlib_filefunc64_32_def;

us.is64bitOpenFunction = is64bitOpenFunction;

us.filestream = ZOPEN64(us.z_filefunc,

path,

ZLIB_FILEFUNC_MODE_READ |

us.pfile_in_zip_read = NULL;

us.encrypted = 0;

s=(unz64_s*)ALLOC(sizeof(unz64_s));

if( s != NULL)

{

return (unzFile)s;

}

extern unzFile ZEXPORT unzOpen2 (const char *path,

zlib_filefunc_def* pzlib_filefunc32_def)

{

return UNZ_OK;

}

/*

Write info about the ZipFile in the *pglobal_info structure.

No preparation of the structure is needed

ZLIB_FILEFUNC_SEEK_SET)!=0)

err=UNZ_ERRNO;

/* we check the magic */

if (err==UNZ_OK)

{

else

lSeek += file_info.size_file_extra;

if ((err==UNZ_OK) && (file_info.size_file_extra != 0))

{

uLong acc = 0;

/* ZIP64 extra fields */

if (headerId == 0x0001)

{

if(file_info.uncompressed_size == MAXU32)

{

if (unz64local_getLong64(&s->z_filefunc, s->filestream,&file_info.uncompressed_size) != UNZ_OK)

else

lSeek+=file_info.size_file_comment;

if ((err==UNZ_OK) && (pfile_info!=NULL))

*pfile_info=file_info;

return err;

}

/*

Write info about the ZipFile in the *pglobal_info structure.

No preparation of the structure is needed

pfile_info->tmu_date = file_info64.tmu_date,

pfile_info->compressed_size = (uLong)file_info64.compressed_size;

pfile_info->uncompressed_size = (uLong)file_info64.uncompressed_size;

return err;

}

/*

Try locate the file szFileName in the zipfile.

For the iCaseSensitivity signification, see unzStringFileNameCompare

ZPOS64_T num_fileSaved;

ZPOS64_T pos_in_central_dirSaved;

if (file==NULL)

return UNZ_PARAMERROR;

return err;

}

/*

///////////////////////////////////////////

// Contributed by Ryan Haksi (mailto://[email protected])

s->byte_before_the_zipfile,ZLIB_FILEFUNC_SEEK_SET)!=0)

return UNZ_ERRNO;

if (err==UNZ_OK)

{

if (unz64local_getLong(&s->z_filefunc, s->filestream,&uMagic) != UNZ_OK)

pfile_in_zip_read_info->rest_read_uncompressed =

s->cur_file_info.uncompressed_size ;

pfile_in_zip_read_info->pos_in_zipfile =

s->cur_file_info_internal.offset_curfile + SIZEZIPLOCALHEADER +

iSizeVar;

}

# endif

return UNZ_OK;

}

if (pfile_in_zip_read_info==NULL)

return UNZ_PARAMERROR;

if (pfile_in_zip_read_info->read_buffer == NULL)

return UNZ_END_OF_LIST_OF_FILE;

if (len==0)

uReadThis)!=uReadThis)

return UNZ_ERRNO;

# ifndef NOUNCRYPT

if(s->encrypted)

{

}

# endif

pfile_in_zip_read_info->pos_in_zipfile += uReadThis;

pfile_in_zip_read_info->rest_read_compressed-=uReadThis;

return err;

}

/*

Give the current position in uncompressed data

*/

return pfile_in_zip_read_info->total_out_64;

}

/*

return 1 if the end of file was reached, 0 elsewhere

*/

return 0;

}

/*

Read extra field from the current file (opened by unzOpenCurrentFile)

This is the local-header version of the extra field (sometimes, there is

if (pfile_in_zip_read_info==NULL)

return UNZ_PARAMERROR;

if ((pfile_in_zip_read_info->rest_read_uncompressed == 0) &&

(!pfile_in_zip_read_info->raw))

{

err=UNZ_CRCERROR;

}

TRYFREE(pfile_in_zip_read_info->read_buffer);

pfile_in_zip_read_info->read_buffer = NULL;

if (pfile_in_zip_read_info->stream_initialised == Z_DEFLATED)

BZ2_bzDecompressEnd(&pfile_in_zip_read_info->bstream);

#endif

pfile_in_zip_read_info->stream_initialised = 0;

TRYFREE(pfile_in_zip_read_info);

return err;

}

/*

Get the global comment string of the ZipFile, in the szComment buffer.

uSizeBuf is the size of the szComment buffer.

typedef voidp unzFile;

#endif

#define UNZ_OK (0)

#define UNZ_END_OF_LIST_OF_FILE (-100)

#define UNZ_ERRNO (Z_ERRNO)

(like 1 on Unix, 2 on Windows)

*/

extern unzFile ZEXPORT unzOpen OF((const char *path));

extern unzFile ZEXPORT unzOpen64 OF((const void *path));

/*

does not describe the reality

*/

extern unzFile ZEXPORT unzOpen2 OF((const char *path,

zlib_filefunc_def* pzlib_filefunc_def));

/*

No preparation of the structure is needed

return UNZ_OK if there is no problem. */

extern int ZEXPORT unzGetGlobalComment OF((unzFile file,

char *szComment,

uLong uSizeBuf));

return the number of byte copied or an error code <0

*/

/***************************************************************************/

/* Unzip package allow you browse the directory of the zipfile */

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 */

(commentBufferSize is the size of the buffer)

*/

/** Addition for GDAL : START */

extern ZPOS64_T ZEXPORT unzGetCurrentFileZStreamPos64 OF((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)

but you CANNOT set method parameter as NULL

*/

extern int ZEXPORT unzCloseCurrentFile OF((unzFile file));

/*

Close the file in zip opened with unzOpenCurrentFile

extern int ZEXPORT unzSetOffset64 (unzFile file, ZPOS64_T pos);

extern int ZEXPORT unzSetOffset (unzFile file, uLong pos);

#ifdef __cplusplus

}

#endif