text: #include <stdio.h>
  #include <stdlib.h>
  #include <string.h>
  #include <stdbool.h>
  #include <time.h>
  #include <errno.h>
  #include <io.h>
  #include "shlwapi.h"
  #include "spinlock.h"
  #include "zlib.h"
  #include "unzip.h"
  
  #undef NOUNCRYPT
  
  #define CASESENSITIVITY (0)
  #define WRITEBUFFERSIZE (8192)
  #define MAXFILENAME (256)
  #define USEWIN32IOAPI
  #define FOPEN_FUNC(filename, mode) fopen(filename, mode)
  #define FTELLO_FUNC(stream) _ftelli64(stream)
  #define FSEEKO_FUNC(stream, offset, origin) _fseeki64(stream, offset, origin)
  
  #ifndef INVALID_SET_FILE_POINTER
  #define INVALID_SET_FILE_POINTER ((DWORD)-1)
  #endif
  
  #if defined(_WIN32) && (!(defined(_CRT_SECURE_NO_WARNINGS)))
          #define _CRT_SECURE_NO_WARNINGS
  #endif
  
  /* compile with -Dlocal if your debugger can't find static symbols */
  #ifndef local
  #  define local static
  #endif
  
  #ifndef CASESENSITIVITYDEFAULT_NO
  #  if !defined(unix) && !defined(CASESENSITIVITYDEFAULT_YES)
  #    define CASESENSITIVITYDEFAULT_NO
  #  endif
  #endif
  
  #ifndef UNZ_BUFSIZE
  #define UNZ_BUFSIZE (16384)
  #endif
  
  #ifndef UNZ_MAXFILENAMEINZIP
  #define UNZ_MAXFILENAMEINZIP (256)
  #endif
  
  #ifndef ALLOC
  # define ALLOC(size) (malloc(size))
  #endif
  #ifndef TRYFREE
  # define TRYFREE(p) {if (p) free(p);}
  #endif
  
  #define SIZECENTRALDIRITEM (0x2e)
  #define SIZEZIPLOCALHEADER (0x1e)
  
  typedef struct
  {
      HANDLE hf;
      int error;
  } WIN32FILE_IOWIN;
  
  /* 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
  {
      char  *read_buffer;         /* internal buffer for compressed data */
      z_stream stream;            /* zLib stream structure for inflate */
  
      ZPOS64_T pos_in_zipfile;       /* position in byte on the zipfile, for fseek*/
      uLong stream_initialised;   /* flag set if stream structure is initialised*/
  
      ZPOS64_T offset_local_extrafield;/* offset of the local extra field */
      uInt  size_local_extrafield;/* size of the local extra field */
      ZPOS64_T pos_local_extrafield;   /* position in the local extra field in read*/
      ZPOS64_T total_out_64;
  
      uLong crc32;                /* crc32 of all data uncompressed */
      uLong crc32_wait;           /* crc32 we must obtain after decompress all */
      ZPOS64_T rest_read_compressed; /* number of byte to be decompressed */
      ZPOS64_T rest_read_uncompressed;/*number of byte to be obtained after decomp*/
      zlib_filefunc64_32_def z_filefunc;
      voidpf filestream;        /* io structore of the zipfile */
      uLong compression_method;   /* compression method (0==store) */
      ZPOS64_T byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/
      int   raw;
  } file_in_zip64_read_info_s;
  
  
  /* unz64_s contain internal information about the zipfile
  */
  typedef struct
  {
      zlib_filefunc64_32_def z_filefunc;
      int is64bitOpenFunction;
      voidpf filestream;        /* io structore of the zipfile */
      unz_global_info64 gi;       /* public global information */
      ZPOS64_T byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/
      ZPOS64_T num_file;             /* number of the current file in the zipfile*/
      ZPOS64_T pos_in_central_dir;   /* pos of the current file in the central dir*/
      ZPOS64_T current_file_ok;      /* flag about the usability of the current file*/
      ZPOS64_T central_pos;          /* position of the beginning of the central dir*/
  
      ZPOS64_T size_central_dir;     /* size of the central directory  */
      ZPOS64_T offset_central_dir;   /* offset of start of central directory with
                                     respect to the starting disk number */
  
      unz_file_info64 cur_file_info; /* public info about the current file in zip*/
      unz_file_info64_internal cur_file_info_internal; /* private info about it*/
      file_in_zip64_read_info_s* pfile_in_zip_read; /* structure about the current
                                          file if we are decompressing it */
      int encrypted;
  
      int isZip64;
  #    ifndef NOUNCRYPT
      unsigned long keys[3];     /* keys defining the pseudo-random sequence */
      const z_crc_t* pcrc_32_tab;
  #    endif
  } unz64_s;
  
  #ifndef NOUNCRYPT
  #include "unzip_crypt.h"
  #endif
  
  /* ioapi.c */
  
  voidpf call_zopen64 (const zlib_filefunc64_32_def* pfilefunc,const void*filename,int mode)
  {
      if (pfilefunc->zfile_func64.zopen64_file != NULL)
          return (*(pfilefunc->zfile_func64.zopen64_file)) (pfilefunc->zfile_func64.opaque,filename,mode);
      else
      {
          return (*(pfilefunc->zopen32_file))(pfilefunc->zfile_func64.opaque,(const char*)filename,mode);
      }
  }
  
  long call_zseek64 (const zlib_filefunc64_32_def* pfilefunc,voidpf filestream, ZPOS64_T offset, int origin)
  {
      if (pfilefunc->zfile_func64.zseek64_file != NULL)
          return (*(pfilefunc->zfile_func64.zseek64_file)) (pfilefunc->zfile_func64.opaque,filestream,offset,origin);
      else
      {
          uLong offsetTruncated = (uLong)offset;
          if (offsetTruncated != offset)
              return -1;
          else
              return (*(pfilefunc->zseek32_file))(pfilefunc->zfile_func64.opaque,filestream,offsetTruncated,origin);
      }
  }
  
  ZPOS64_T call_ztell64 (const zlib_filefunc64_32_def* pfilefunc,voidpf filestream)
  {
      if (pfilefunc->zfile_func64.zseek64_file != NULL)
          return (*(pfilefunc->zfile_func64.ztell64_file)) (pfilefunc->zfile_func64.opaque,filestream);
      else
      {
          uLong tell_uLong = (*(pfilefunc->ztell32_file))(pfilefunc->zfile_func64.opaque,filestream);
          if ((tell_uLong) == MAXU32)
              return (ZPOS64_T)-1;
          else
              return tell_uLong;
      }
  }
  
  void fill_zlib_filefunc64_32_def_from_filefunc32(zlib_filefunc64_32_def* p_filefunc64_32,const zlib_filefunc_def* p_filefunc32)
  {
      p_filefunc64_32->zfile_func64.zopen64_file = NULL;
      p_filefunc64_32->zopen32_file = p_filefunc32->zopen_file;
      p_filefunc64_32->zfile_func64.zerror_file = p_filefunc32->zerror_file;
      p_filefunc64_32->zfile_func64.zread_file = p_filefunc32->zread_file;
      p_filefunc64_32->zfile_func64.zwrite_file = p_filefunc32->zwrite_file;
      p_filefunc64_32->zfile_func64.ztell64_file = NULL;
      p_filefunc64_32->zfile_func64.zseek64_file = NULL;
      p_filefunc64_32->zfile_func64.zclose_file = p_filefunc32->zclose_file;
      p_filefunc64_32->zfile_func64.zerror_file = p_filefunc32->zerror_file;
      p_filefunc64_32->zfile_func64.opaque = p_filefunc32->opaque;
      p_filefunc64_32->zseek32_file = p_filefunc32->zseek_file;
      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));
  static ZPOS64_T ZCALLBACK ftell64_file_func OF((voidpf opaque, voidpf stream));
  static long    ZCALLBACK fseek64_file_func OF((voidpf opaque, voidpf stream, ZPOS64_T offset, int origin));
  static int     ZCALLBACK fclose_file_func OF((voidpf opaque, voidpf stream));
  static int     ZCALLBACK ferror_file_func OF((voidpf opaque, voidpf stream));
  
  static voidpf ZCALLBACK fopen_file_func (voidpf opaque, const char* filename, int mode)
  {
      FILE* file = NULL;
      const char* mode_fopen = NULL;
      if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ)
          mode_fopen = "rb";
      else
      if (mode & ZLIB_FILEFUNC_MODE_EXISTING)
          mode_fopen = "r+b";
      else
      if (mode & ZLIB_FILEFUNC_MODE_CREATE)
          mode_fopen = "wb";
  
      if ((filename!=NULL) && (mode_fopen != NULL))
          file = fopen(filename, mode_fopen);
      return file;
  }
  
  static voidpf ZCALLBACK fopen64_file_func (voidpf opaque, const void* filename, int mode)
  {
      FILE* file = NULL;
      const char* mode_fopen = NULL;
      if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ)
          mode_fopen = "rb";
      else
      if (mode & ZLIB_FILEFUNC_MODE_EXISTING)
          mode_fopen = "r+b";
      else
      if (mode & ZLIB_FILEFUNC_MODE_CREATE)
          mode_fopen = "wb";
  
      if ((filename!=NULL) && (mode_fopen != NULL))
          file = FOPEN_FUNC((const char*)filename, mode_fopen);
      return file;
  }
  
  
  static uLong ZCALLBACK fread_file_func (voidpf opaque, voidpf stream, void* buf, uLong size)
  {
      uLong ret;
      ret = (uLong)fread(buf, 1, (size_t)size, (FILE *)stream);
      return ret;
  }
  
  static uLong ZCALLBACK fwrite_file_func (voidpf opaque, voidpf stream, const void* buf, uLong size)
  {
      uLong ret;
      ret = (uLong)fwrite(buf, 1, (size_t)size, (FILE *)stream);
      return ret;
  }
  
  static long ZCALLBACK ftell_file_func (voidpf opaque, voidpf stream)
  {
      long ret;
      ret = ftell((FILE *)stream);
      return ret;
  }
  
  
  static ZPOS64_T ZCALLBACK ftell64_file_func (voidpf opaque, voidpf stream)
  {
      ZPOS64_T ret;
      ret = FTELLO_FUNC((FILE *)stream);
      return ret;
  }
  
  static long ZCALLBACK fseek_file_func (voidpf  opaque, voidpf stream, uLong offset, int origin)
  {
      int fseek_origin=0;
      long ret;
      switch (origin)
      {
      case ZLIB_FILEFUNC_SEEK_CUR :
          fseek_origin = SEEK_CUR;
          break;
      case ZLIB_FILEFUNC_SEEK_END :
          fseek_origin = SEEK_END;
          break;
      case ZLIB_FILEFUNC_SEEK_SET :
          fseek_origin = SEEK_SET;
          break;
      default: return -1;
      }
      ret = 0;
      if (fseek((FILE *)stream, offset, fseek_origin) != 0)
          ret = -1;
      return ret;
  }
  
  static long ZCALLBACK fseek64_file_func (voidpf  opaque, voidpf stream, ZPOS64_T offset, int origin)
  {
      int fseek_origin=0;
      long ret;
      switch (origin)
      {
      case ZLIB_FILEFUNC_SEEK_CUR :
          fseek_origin = SEEK_CUR;
          break;
      case ZLIB_FILEFUNC_SEEK_END :
          fseek_origin = SEEK_END;
          break;
      case ZLIB_FILEFUNC_SEEK_SET :
          fseek_origin = SEEK_SET;
          break;
      default: return -1;
      }
      ret = 0;
  
      if(FSEEKO_FUNC((FILE *)stream, offset, fseek_origin) != 0)
                          ret = -1;
  
      return ret;
  }
  
  
  static int ZCALLBACK fclose_file_func (voidpf opaque, voidpf stream)
  {
      int ret;
      ret = fclose((FILE *)stream);
      return ret;
  }
  
  static int ZCALLBACK ferror_file_func (voidpf opaque, voidpf stream)
  {
      int ret;
      ret = ferror((FILE *)stream);
      return ret;
  }
  
  void fill_fopen_filefunc (pzlib_filefunc_def)
    zlib_filefunc_def* pzlib_filefunc_def;
  {
      pzlib_filefunc_def->zopen_file = fopen_file_func;
      pzlib_filefunc_def->zread_file = fread_file_func;
      pzlib_filefunc_def->zwrite_file = fwrite_file_func;
      pzlib_filefunc_def->ztell_file = ftell_file_func;
      pzlib_filefunc_def->zseek_file = fseek_file_func;
      pzlib_filefunc_def->zclose_file = fclose_file_func;
      pzlib_filefunc_def->zerror_file = ferror_file_func;
      pzlib_filefunc_def->opaque = NULL;
  }
  
  void fill_fopen64_filefunc (zlib_filefunc64_def*  pzlib_filefunc_def)
  {
      pzlib_filefunc_def->zopen64_file = fopen64_file_func;
      pzlib_filefunc_def->zread_file = fread_file_func;
      pzlib_filefunc_def->zwrite_file = fwrite_file_func;
      pzlib_filefunc_def->ztell64_file = ftell64_file_func;
      pzlib_filefunc_def->zseek64_file = fseek64_file_func;
      pzlib_filefunc_def->zclose_file = fclose_file_func;
      pzlib_filefunc_def->zerror_file = ferror_file_func;
      pzlib_filefunc_def->opaque = NULL;
  }
  
  /* ioapi.c end */
  
  /* iowi32.c */
  static void win32_translate_open_mode(int mode,
                                        DWORD* lpdwDesiredAccess,
                                        DWORD* lpdwCreationDisposition,
                                        DWORD* lpdwShareMode,
                                        DWORD* lpdwFlagsAndAttributes)
  {
      *lpdwDesiredAccess = *lpdwShareMode = *lpdwFlagsAndAttributes = *lpdwCreationDisposition = 0;
  
      if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ)
      {
          *lpdwDesiredAccess = GENERIC_READ;
          *lpdwCreationDisposition = OPEN_EXISTING;
          *lpdwShareMode = FILE_SHARE_READ;
      }
      else if (mode & ZLIB_FILEFUNC_MODE_EXISTING)
      {
          *lpdwDesiredAccess = GENERIC_WRITE | GENERIC_READ;
          *lpdwCreationDisposition = OPEN_EXISTING;
      }
      else if (mode & ZLIB_FILEFUNC_MODE_CREATE)
      {
          *lpdwDesiredAccess = GENERIC_WRITE | GENERIC_READ;
          *lpdwCreationDisposition = CREATE_ALWAYS;
      }
  }
  
  static voidpf win32_build_iowin(HANDLE hFile)
  {
      voidpf ret=NULL;
  
      if ((hFile != NULL) && (hFile != INVALID_HANDLE_VALUE))
      {
          WIN32FILE_IOWIN w32fiow;
          w32fiow.hf = hFile;
          w32fiow.error = 0;
          ret = malloc(sizeof(WIN32FILE_IOWIN));
  
          if (ret==NULL)
              CloseHandle(hFile);
          else
              *((WIN32FILE_IOWIN*)ret) = w32fiow;
      }
      return ret;
  }
  
  voidpf ZCALLBACK win32_open64_file_func (voidpf opaque,const void* filename,int mode)
  {
      const char* mode_fopen = NULL;
      DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ;
      HANDLE hFile = NULL;
  
      win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes);
  
      if ((filename!=NULL) && (dwDesiredAccess != 0))
      {
          WCHAR filenameW[FILENAME_MAX + 0x200 + 1];
          MultiByteToWideChar(CP_UTF8,0,(const char*)filename,-1,filenameW,FILENAME_MAX + 0x200);
          hFile = CreateFileW(filenameW, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL);
      }
  
      return win32_build_iowin(hFile);
  }
  
  
  voidpf ZCALLBACK win32_open64_file_funcA (voidpf opaque,const void* filename,int mode)
  {
      const char* mode_fopen = NULL;
      DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ;
      HANDLE hFile = NULL;
  
      win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes);
  
      if ((filename!=NULL) && (dwDesiredAccess != 0))
          hFile = CreateFileA((LPCSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL);
      return win32_build_iowin(hFile);
  }
  
  
  voidpf ZCALLBACK win32_open_file_func (voidpf opaque,const char* filename,int mode)
  {
      const char* mode_fopen = NULL;
      DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ;
      HANDLE hFile = NULL;
  
      win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes);
  
      if ((filename!=NULL) && (dwDesiredAccess != 0))
      {
          WCHAR filenameW[FILENAME_MAX + 0x200 + 1];
          MultiByteToWideChar(CP_UTF8,0,(const char*)filename,-1,filenameW,FILENAME_MAX + 0x200);
          hFile = CreateFileW(filenameW, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL);
      }
  
      return win32_build_iowin(hFile);
  }
  
  
  uLong ZCALLBACK win32_read_file_func (voidpf opaque, voidpf stream, void* buf,uLong size)
  {
      uLong ret=0;
      HANDLE hFile = NULL;
      if (stream!=NULL)
          hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
  
      if (hFile != NULL)
      {
          if (!ReadFile(hFile, buf, size, &ret, NULL))
          {
              DWORD dwErr = GetLastError();
              if (dwErr == ERROR_HANDLE_EOF)
                  dwErr = 0;
              ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
          }
      }
  
      return ret;
  }
  
  
  uLong ZCALLBACK win32_write_file_func (voidpf opaque,voidpf stream,const void* buf,uLong size)
  {
      uLong ret=0;
      HANDLE hFile = NULL;
      if (stream!=NULL)
          hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
  
      if (hFile != NULL)
      {
          if (!WriteFile(hFile, buf, size, &ret, NULL))
          {
              DWORD dwErr = GetLastError();
              if (dwErr == ERROR_HANDLE_EOF)
                  dwErr = 0;
              ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
          }
      }
  
      return ret;
  }
  
  static BOOL MySetFilePointerEx(HANDLE hFile, LARGE_INTEGER pos, LARGE_INTEGER *newPos,  DWORD dwMoveMethod)
  {
  #ifdef IOWIN32_USING_WINRT_API
      return SetFilePointerEx(hFile, pos, newPos, dwMoveMethod);
  #else
      LONG lHigh = pos.HighPart;
      DWORD dwNewPos = SetFilePointer(hFile, pos.LowPart, &lHigh, dwMoveMethod);
      BOOL fOk = TRUE;
      if (dwNewPos == 0xFFFFFFFF)
          if (GetLastError() != NO_ERROR)
              fOk = FALSE;
      if ((newPos != NULL) && (fOk))
      {
          newPos->LowPart = dwNewPos;
          newPos->HighPart = lHigh;
      }
      return fOk;
  #endif
  }
  
  long ZCALLBACK win32_tell_file_func (voidpf opaque,voidpf stream)
  {
      long ret=-1;
      HANDLE hFile = NULL;
      if (stream!=NULL)
          hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
      if (hFile != NULL)
      {
          LARGE_INTEGER pos;
          pos.QuadPart = 0;
  
          if (!MySetFilePointerEx(hFile, pos, &pos, FILE_CURRENT))
          {
              DWORD dwErr = GetLastError();
              ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
              ret = -1;
          }
          else
              ret=(long)pos.LowPart;
      }
      return ret;
  }
  
  ZPOS64_T ZCALLBACK win32_tell64_file_func (voidpf opaque, voidpf stream)
  {
      ZPOS64_T ret= (ZPOS64_T)-1;
      HANDLE hFile = NULL;
      if (stream!=NULL)
          hFile = ((WIN32FILE_IOWIN*)stream)->hf;
  
      if (hFile)
      {
          LARGE_INTEGER pos;
          pos.QuadPart = 0;
  
          if (!MySetFilePointerEx(hFile, pos, &pos, FILE_CURRENT))
          {
              DWORD dwErr = GetLastError();
              ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
              ret = (ZPOS64_T)-1;
          }
          else
              ret=pos.QuadPart;
      }
      return ret;
  }
  
  
  long ZCALLBACK win32_seek_file_func (voidpf opaque,voidpf stream,uLong offset,int origin)
  {
      DWORD dwMoveMethod=0xFFFFFFFF;
      HANDLE hFile = NULL;
  
      long ret=-1;
      if (stream!=NULL)
          hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
      switch (origin)
      {
      case ZLIB_FILEFUNC_SEEK_CUR :
          dwMoveMethod = FILE_CURRENT;
          break;
      case ZLIB_FILEFUNC_SEEK_END :
          dwMoveMethod = FILE_END;
          break;
      case ZLIB_FILEFUNC_SEEK_SET :
          dwMoveMethod = FILE_BEGIN;
          break;
      default: return -1;
      }
  
      if (hFile != NULL)
      {
          LARGE_INTEGER pos;
          pos.QuadPart = offset;
          if (!MySetFilePointerEx(hFile, pos, NULL, dwMoveMethod))
          {
              DWORD dwErr = GetLastError();
              ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
              ret = -1;
          }
          else
              ret=0;
      }
      return ret;
  }
  
  long ZCALLBACK win32_seek64_file_func (voidpf opaque, voidpf stream,ZPOS64_T offset,int origin)
  {
      DWORD dwMoveMethod=0xFFFFFFFF;
      HANDLE hFile = NULL;
      long ret=-1;
  
      if (stream!=NULL)
          hFile = ((WIN32FILE_IOWIN*)stream)->hf;
  
      switch (origin)
      {
          case ZLIB_FILEFUNC_SEEK_CUR :
              dwMoveMethod = FILE_CURRENT;
              break;
          case ZLIB_FILEFUNC_SEEK_END :
              dwMoveMethod = FILE_END;
              break;
          case ZLIB_FILEFUNC_SEEK_SET :
              dwMoveMethod = FILE_BEGIN;
              break;
          default: return -1;
      }
  
      if (hFile)
      {
          LARGE_INTEGER pos;
          pos.QuadPart = offset;
          if (!MySetFilePointerEx(hFile, pos, NULL, dwMoveMethod))
          {
              DWORD dwErr = GetLastError();
              ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
              ret = -1;
          }
          else
              ret=0;
      }
      return ret;
  }
  
  int ZCALLBACK win32_close_file_func (voidpf opaque, voidpf stream)
  {
      int ret=-1;
  
      if (stream!=NULL)
      {
          HANDLE hFile;
          hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
          if (hFile != NULL)
          {
              CloseHandle(hFile);
              ret=0;
          }
          free(stream);
      }
      return ret;
  }
  
  int ZCALLBACK win32_error_file_func (voidpf opaque,voidpf stream)
  {
      int ret=-1;
      if (stream!=NULL)
      {
          ret = ((WIN32FILE_IOWIN*)stream) -> error;
      }
      return ret;
  }
  
  void fill_win32_filefunc (zlib_filefunc_def* pzlib_filefunc_def)
  {
      pzlib_filefunc_def->zopen_file = win32_open_file_func;
      pzlib_filefunc_def->zread_file = win32_read_file_func;
      pzlib_filefunc_def->zwrite_file = win32_write_file_func;
      pzlib_filefunc_def->ztell_file = win32_tell_file_func;
      pzlib_filefunc_def->zseek_file = win32_seek_file_func;
      pzlib_filefunc_def->zclose_file = win32_close_file_func;
      pzlib_filefunc_def->zerror_file = win32_error_file_func;
      pzlib_filefunc_def->opaque = NULL;
  }
  
  void fill_win32_filefunc64(zlib_filefunc64_def* pzlib_filefunc_def)
  {
      pzlib_filefunc_def->zopen64_file = win32_open64_file_func;
      pzlib_filefunc_def->zread_file = win32_read_file_func;
      pzlib_filefunc_def->zwrite_file = win32_write_file_func;
      pzlib_filefunc_def->ztell64_file = win32_tell64_file_func;
      pzlib_filefunc_def->zseek64_file = win32_seek64_file_func;
      pzlib_filefunc_def->zclose_file = win32_close_file_func;
      pzlib_filefunc_def->zerror_file = win32_error_file_func;
      pzlib_filefunc_def->opaque = NULL;
  }
  
  /* iowin32.c end */
  
  /* ===========================================================================
       Read a byte from a gz_stream; update next_in and avail_in. Return EOF
     for end of file.
     IN assertion: the stream s has been successfully opened for reading.
  */
  
  
  local int unz64local_getByte OF((
      const zlib_filefunc64_32_def* pzlib_filefunc_def,
      voidpf filestream,
      int *pi));
  
  local int unz64local_getByte(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, int *pi)
  {
      unsigned char c;
      int err = (int)ZREAD64(*pzlib_filefunc_def,filestream,&c,1);
      if (err==1)
      {
          *pi = (int)c;
          return UNZ_OK;
      }
      else
      {
          if (ZERROR64(*pzlib_filefunc_def,filestream))
              return UNZ_ERRNO;
          else
              return UNZ_EOF;
      }
  }
  
  
  /* ===========================================================================
     Reads a long in LSB order from the given gz_stream. Sets
  */
  local int unz64local_getShort OF((
      const zlib_filefunc64_32_def* pzlib_filefunc_def,
      voidpf filestream,
      uLong *pX));
  
  local int unz64local_getShort (const zlib_filefunc64_32_def* pzlib_filefunc_def,
                               voidpf filestream,
                               uLong *pX)
  {
      uLong x ;
      int i = 0;
      int err;
  
      err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
      x = (uLong)i;
  
      if (err==UNZ_OK)
          err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
      x |= ((uLong)i)<<8;
  
      if (err==UNZ_OK)
          *pX = x;
      else
          *pX = 0;
      return err;
  }
  
  local int unz64local_getLong OF((
      const zlib_filefunc64_32_def* pzlib_filefunc_def,
      voidpf filestream,
      uLong *pX));
  
  local int unz64local_getLong (const zlib_filefunc64_32_def* pzlib_filefunc_def,
                              voidpf filestream,
                              uLong *pX)
  {
      uLong x ;
      int i = 0;
      int err;
  
      err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
      x = (uLong)i;
  
      if (err==UNZ_OK)
          err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
      x |= ((uLong)i)<<8;
  
      if (err==UNZ_OK)
          err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
      x |= ((uLong)i)<<16;
  
      if (err==UNZ_OK)
          err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
      x += ((uLong)i)<<24;
  
      if (err==UNZ_OK)
          *pX = x;
      else
          *pX = 0;
      return err;
  }
  
  local int unz64local_getLong64 OF((
      const zlib_filefunc64_32_def* pzlib_filefunc_def,
      voidpf filestream,
      ZPOS64_T *pX));
  
  
  local int unz64local_getLong64 (const zlib_filefunc64_32_def* pzlib_filefunc_def,
                              voidpf filestream,
                              ZPOS64_T *pX)
  {
      ZPOS64_T x ;
      int i = 0;
      int err;
  
      err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
      x = (ZPOS64_T)i;
  
      if (err==UNZ_OK)
          err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
      x |= ((ZPOS64_T)i)<<8;
  
      if (err==UNZ_OK)
          err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
      x |= ((ZPOS64_T)i)<<16;
  
      if (err==UNZ_OK)
          err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
      x |= ((ZPOS64_T)i)<<24;
  
      if (err==UNZ_OK)
          err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
      x |= ((ZPOS64_T)i)<<32;
  
      if (err==UNZ_OK)
          err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
      x |= ((ZPOS64_T)i)<<40;
  
      if (err==UNZ_OK)
          err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
      x |= ((ZPOS64_T)i)<<48;
  
      if (err==UNZ_OK)
          err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
      x |= ((ZPOS64_T)i)<<56;
  
      if (err==UNZ_OK)
          *pX = x;
      else
          *pX = 0;
      return err;
  }
  
  /* My own strcmpi / strcasecmp */
  local int strcmpcasenosensitive_internal (const char* fileName1, const char* fileName2)
  {
      for (;;)
      {
          char c1=*(fileName1++);
          char c2=*(fileName2++);
          if ((c1>='a') && (c1<='z'))
              c1 -= 0x20;
          if ((c2>='a') && (c2<='z'))
              c2 -= 0x20;
          if (c1=='\0')
              return ((c2=='\0') ? 0 : -1);
          if (c2=='\0')
              return 1;
          if (c1<c2)
              return -1;
          if (c1>c2)
              return 1;
      }
  }
  
  
  #ifdef  CASESENSITIVITYDEFAULT_NO
  #define CASESENSITIVITYDEFAULTVALUE 2
  #else
  #define CASESENSITIVITYDEFAULTVALUE 1
  #endif
  
  #ifndef STRCMPCASENOSENTIVEFUNCTION
  #define STRCMPCASENOSENTIVEFUNCTION strcmpcasenosensitive_internal
  #endif
  
  /*
     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)
  
  */
  int ZEXPORT unzStringFileNameCompare (const char*  fileName1,
                                                   const char*  fileName2,
                                                   int iCaseSensitivity)
  
  {
      if (iCaseSensitivity==0)
          iCaseSensitivity=CASESENSITIVITYDEFAULTVALUE;
  
      if (iCaseSensitivity==1)
          return strcmp(fileName1,fileName2);
  
      return STRCMPCASENOSENTIVEFUNCTION(fileName1,fileName2);
  }
  
  #ifndef BUFREADCOMMENT
  #define BUFREADCOMMENT (0x400)
  #endif
  
  /*
    Locate the Central directory of a zipfile (at the end, just before
      the global comment)
  */
  local ZPOS64_T unz64local_SearchCentralDir OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream));
  local ZPOS64_T unz64local_SearchCentralDir(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream)
  {
      unsigned char* buf;
      ZPOS64_T uSizeFile;
      ZPOS64_T uBackRead;
      ZPOS64_T uMaxBack=0xffff; /* maximum size of global comment */
      ZPOS64_T uPosFound=0;
  
      if (ZSEEK64(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0)
          return 0;
  
  
      uSizeFile = ZTELL64(*pzlib_filefunc_def,filestream);
  
      if (uMaxBack>uSizeFile)
          uMaxBack = uSizeFile;
  
      buf = (unsigned char*)ALLOC(BUFREADCOMMENT+4);
      if (buf==NULL)
          return 0;
  
      uBackRead = 4;
      while (uBackRead<uMaxBack)
      {
          uLong uReadSize;
          ZPOS64_T uReadPos ;
          int i;
          if (uBackRead+BUFREADCOMMENT>uMaxBack)
              uBackRead = uMaxBack;
          else
              uBackRead+=BUFREADCOMMENT;
          uReadPos = uSizeFile-uBackRead ;
  
          uReadSize = ((BUFREADCOMMENT+4) < (uSizeFile-uReadPos)) ?
                       (BUFREADCOMMENT+4) : (uLong)(uSizeFile-uReadPos);
          if (ZSEEK64(*pzlib_filefunc_def,filestream,uReadPos,ZLIB_FILEFUNC_SEEK_SET)!=0)
              break;
  
          if (ZREAD64(*pzlib_filefunc_def,filestream,buf,uReadSize)!=uReadSize)
              break;
  
          for (i=(int)uReadSize-3; (i--)>0;)
              if (((*(buf+i))==0x50) && ((*(buf+i+1))==0x4b) &&
                  ((*(buf+i+2))==0x05) && ((*(buf+i+3))==0x06))
              {
                  uPosFound = uReadPos+i;
                  break;
              }
  
          if (uPosFound!=0)
              break;
      }
      TRYFREE(buf);
      return uPosFound;
  }
  
  
  /*
    Locate the Central directory 64 of a zipfile (at the end, just before
      the global comment)
  */
  local ZPOS64_T unz64local_SearchCentralDir64 OF((
      const zlib_filefunc64_32_def* pzlib_filefunc_def,
      voidpf filestream));
  
  local ZPOS64_T unz64local_SearchCentralDir64(const zlib_filefunc64_32_def* pzlib_filefunc_def,
                                        voidpf filestream)
  {
      unsigned char* buf;
      ZPOS64_T uSizeFile;
      ZPOS64_T uBackRead;
      ZPOS64_T uMaxBack=0xffff; /* maximum size of global comment */
      ZPOS64_T uPosFound=0;
      uLong uL;
                  ZPOS64_T relativeOffset;
  
      if (ZSEEK64(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0)
          return 0;
  
  
      uSizeFile = ZTELL64(*pzlib_filefunc_def,filestream);
  
      if (uMaxBack>uSizeFile)
          uMaxBack = uSizeFile;
  
      buf = (unsigned char*)ALLOC(BUFREADCOMMENT+4);
      if (buf==NULL)
          return 0;
  
      uBackRead = 4;
      while (uBackRead<uMaxBack)
      {
          uLong uReadSize;
          ZPOS64_T uReadPos;
          int i;
          if (uBackRead+BUFREADCOMMENT>uMaxBack)
              uBackRead = uMaxBack;
          else
              uBackRead+=BUFREADCOMMENT;
          uReadPos = uSizeFile-uBackRead ;
  
          uReadSize = ((BUFREADCOMMENT+4) < (uSizeFile-uReadPos)) ?
                       (BUFREADCOMMENT+4) : (uLong)(uSizeFile-uReadPos);
          if (ZSEEK64(*pzlib_filefunc_def,filestream,uReadPos,ZLIB_FILEFUNC_SEEK_SET)!=0)
              break;
  
          if (ZREAD64(*pzlib_filefunc_def,filestream,buf,uReadSize)!=uReadSize)
              break;
  
          for (i=(int)uReadSize-3; (i--)>0;)
              if (((*(buf+i))==0x50) && ((*(buf+i+1))==0x4b) &&
                  ((*(buf+i+2))==0x06) && ((*(buf+i+3))==0x07))
              {
                  uPosFound = uReadPos+i;
                  break;
              }
  
          if (uPosFound!=0)
              break;
      }
      TRYFREE(buf);
      if (uPosFound == 0)
          return 0;
  
      /* Zip64 end of central directory locator */
      if (ZSEEK64(*pzlib_filefunc_def,filestream, uPosFound,ZLIB_FILEFUNC_SEEK_SET)!=0)
          return 0;
  
      /* the signature, already checked */
      if (unz64local_getLong(pzlib_filefunc_def,filestream,&uL)!=UNZ_OK)
          return 0;
  
      /* number of the disk with the start of the zip64 end of  central directory */
      if (unz64local_getLong(pzlib_filefunc_def,filestream,&uL)!=UNZ_OK)
          return 0;
      if (uL != 0)
          return 0;
  
      /* relative offset of the zip64 end of central directory record */
      if (unz64local_getLong64(pzlib_filefunc_def,filestream,&relativeOffset)!=UNZ_OK)
          return 0;
  
      /* total number of disks */
      if (unz64local_getLong(pzlib_filefunc_def,filestream,&uL)!=UNZ_OK)
          return 0;
      if (uL != 1)
          return 0;
  
      /* Goto end of central directory record */
      if (ZSEEK64(*pzlib_filefunc_def,filestream, relativeOffset,ZLIB_FILEFUNC_SEEK_SET)!=0)
          return 0;
  
       /* the signature */
      if (unz64local_getLong(pzlib_filefunc_def,filestream,&uL)!=UNZ_OK)
          return 0;
  
      if (uL != 0x06064b50)
          return 0;
  
      return relativeOffset;
  }
  
  /*
    Open a Zip file. path contain the full pathname (by example,
       on a Windows NT computer "c:\\test\\zlib114.zip" or on an Unix computer
       "zlib/zlib114.zip".
       If the zipfile cannot be opened (file doesn'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.
  */
  local unzFile unzOpenInternal (const void *path,
                                 zlib_filefunc64_32_def* pzlib_filefunc64_32_def,
                                 int is64bitOpenFunction)
  {
      unz64_s us;
      unz64_s *s;
      ZPOS64_T central_pos;
      uLong   uL;
  
      uLong number_disk;          /* number of the current dist, used for
                                     spaning ZIP, unsupported, always 0*/
      uLong number_disk_with_CD;  /* number the the disk with central dir, used
                                     for spaning ZIP, unsupported, always 0*/
      ZPOS64_T number_entry_CD;      /* total number of entries in
                                     the central dir
                                     (same than number_entry on nospan) */
  
      int err=UNZ_OK;
  
      us.z_filefunc.zseek32_file = NULL;
      us.z_filefunc.ztell32_file = NULL;
      if (pzlib_filefunc64_32_def==NULL)
          fill_fopen64_filefunc(&us.z_filefunc.zfile_func64);
      else
          us.z_filefunc = *pzlib_filefunc64_32_def;
      us.is64bitOpenFunction = is64bitOpenFunction;
  
  
  
      us.filestream = ZOPEN64(us.z_filefunc,
                                                   path,
                                                   ZLIB_FILEFUNC_MODE_READ |
                                                   ZLIB_FILEFUNC_MODE_EXISTING);
      if (us.filestream==NULL)
          return NULL;
  
      central_pos = unz64local_SearchCentralDir64(&us.z_filefunc,us.filestream);
      if (central_pos)
      {
          uLong uS;
          ZPOS64_T uL64;
  
          us.isZip64 = 1;
  
          if (ZSEEK64(us.z_filefunc, us.filestream,
                                        central_pos,ZLIB_FILEFUNC_SEEK_SET)!=0)
          err=UNZ_ERRNO;
  
          /* the signature, already checked */
          if (unz64local_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK)
              err=UNZ_ERRNO;
  
          /* size of zip64 end of central directory record */
          if (unz64local_getLong64(&us.z_filefunc, us.filestream,&uL64)!=UNZ_OK)
              err=UNZ_ERRNO;
  
          /* version made by */
          if (unz64local_getShort(&us.z_filefunc, us.filestream,&uS)!=UNZ_OK)
              err=UNZ_ERRNO;
  
          /* version needed to extract */
          if (unz64local_getShort(&us.z_filefunc, us.filestream,&uS)!=UNZ_OK)
              err=UNZ_ERRNO;
  
          /* number of this disk */
          if (unz64local_getLong(&us.z_filefunc, us.filestream,&number_disk)!=UNZ_OK)
              err=UNZ_ERRNO;
  
          /* number of the disk with the start of the central directory */
          if (unz64local_getLong(&us.z_filefunc, us.filestream,&number_disk_with_CD)!=UNZ_OK)
              err=UNZ_ERRNO;
  
          /* total number of entries in the central directory on this disk */
          if (unz64local_getLong64(&us.z_filefunc, us.filestream,&us.gi.number_entry)!=UNZ_OK)
              err=UNZ_ERRNO;
  
          /* total number of entries in the central directory */
          if (unz64local_getLong64(&us.z_filefunc, us.filestream,&number_entry_CD)!=UNZ_OK)
              err=UNZ_ERRNO;
  
          if ((number_entry_CD!=us.gi.number_entry) ||
              (number_disk_with_CD!=0) ||
              (number_disk!=0))
              err=UNZ_BADZIPFILE;
  
          /* size of the central directory */
          if (unz64local_getLong64(&us.z_filefunc, us.filestream,&us.size_central_dir)!=UNZ_OK)
              err=UNZ_ERRNO;
  
          /* offset of start of central directory with respect to the
            starting disk number */
          if (unz64local_getLong64(&us.z_filefunc, us.filestream,&us.offset_central_dir)!=UNZ_OK)
              err=UNZ_ERRNO;
  
          us.gi.size_comment = 0;
      }
      else
      {
          central_pos = unz64local_SearchCentralDir(&us.z_filefunc,us.filestream);
          if (central_pos==0)
              err=UNZ_ERRNO;
  
          us.isZip64 = 0;
  
          if (ZSEEK64(us.z_filefunc, us.filestream,
                                          central_pos,ZLIB_FILEFUNC_SEEK_SET)!=0)
              err=UNZ_ERRNO;
  
          /* the signature, already checked */
          if (unz64local_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK)
              err=UNZ_ERRNO;
  
          /* number of this disk */
          if (unz64local_getShort(&us.z_filefunc, us.filestream,&number_disk)!=UNZ_OK)
              err=UNZ_ERRNO;
  
          /* number of the disk with the start of the central directory */
          if (unz64local_getShort(&us.z_filefunc, us.filestream,&number_disk_with_CD)!=UNZ_OK)
              err=UNZ_ERRNO;
  
          /* total number of entries in the central dir on this disk */
          if (unz64local_getShort(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK)
              err=UNZ_ERRNO;
          us.gi.number_entry = uL;
  
          /* total number of entries in the central dir */
          if (unz64local_getShort(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK)
              err=UNZ_ERRNO;
          number_entry_CD = uL;
  
          if ((number_entry_CD!=us.gi.number_entry) ||
              (number_disk_with_CD!=0) ||
              (number_disk!=0))
              err=UNZ_BADZIPFILE;
  
          /* size of the central directory */
          if (unz64local_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK)
              err=UNZ_ERRNO;
          us.size_central_dir = uL;
  
          /* offset of start of central directory with respect to the
              starting disk number */
          if (unz64local_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK)
              err=UNZ_ERRNO;
          us.offset_central_dir = uL;
  
          /* zipfile comment length */
          if (unz64local_getShort(&us.z_filefunc, us.filestream,&us.gi.size_comment)!=UNZ_OK)
              err=UNZ_ERRNO;
      }
  
      if ((central_pos<us.offset_central_dir+us.size_central_dir) &&
          (err==UNZ_OK))
          err=UNZ_BADZIPFILE;
  
      if (err!=UNZ_OK)
      {
          ZCLOSE64(us.z_filefunc, us.filestream);
          return NULL;
      }
  
      us.byte_before_the_zipfile = central_pos -
                              (us.offset_central_dir+us.size_central_dir);
      us.central_pos = central_pos;
      us.pfile_in_zip_read = NULL;
      us.encrypted = 0;
  
  
      s=(unz64_s*)ALLOC(sizeof(unz64_s));
      if( s != NULL)
      {
          *s=us;
          unzGoToFirstFile((unzFile)s);
      }
      return (unzFile)s;
  }
  
  
  unzFile ZEXPORT unzOpen2 (const char *path, zlib_filefunc_def* pzlib_filefunc32_def)
  {
      if (pzlib_filefunc32_def != NULL)
      {
          zlib_filefunc64_32_def zlib_filefunc64_32_def_fill;
          fill_zlib_filefunc64_32_def_from_filefunc32(&zlib_filefunc64_32_def_fill,pzlib_filefunc32_def);
          return unzOpenInternal(path, &zlib_filefunc64_32_def_fill, 0);
      }
      else
          return unzOpenInternal(path, NULL, 0);
  }
  
  unzFile ZEXPORT unzOpen2_64W (const WCHAR *wstr, zlib_filefunc64_def* pzlib_filefunc_def)
  {
      char path[MAX_PATH+1] = {0};
      if (!WideCharToMultiByte(CP_UTF8, 0, wstr, -1, path, sizeof(path), NULL, NULL))
      {
          printf("WideCharToMultiByte utf-8 false\n");
          return NULL;
      }
      if (pzlib_filefunc_def != NULL)
      {
          zlib_filefunc64_32_def zlib_filefunc64_32_def_fill;
          zlib_filefunc64_32_def_fill.zfile_func64 = *pzlib_filefunc_def;
          zlib_filefunc64_32_def_fill.ztell32_file = NULL;
          zlib_filefunc64_32_def_fill.zseek32_file = NULL;
          return unzOpenInternal(path, &zlib_filefunc64_32_def_fill, 1);
      }
      else
          return unzOpenInternal(path, NULL, 1);
  }
  
  unzFile ZEXPORT unzOpen (const char *path)
  {
      return unzOpenInternal(path, NULL, 0);
  }
  
  unzFile ZEXPORT unzOpen64 (const void *path)
  {
      return unzOpenInternal(path, NULL, 1);
  }
  
  /*
    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. */
  int ZEXPORT unzClose (unzFile file)
  {
      unz64_s* s;
      if (file==NULL)
          return UNZ_PARAMERROR;
      s=(unz64_s*)file;
  
      if (s->pfile_in_zip_read!=NULL)
          unzCloseCurrentFile(file);
  
      ZCLOSE64(s->z_filefunc, s->filestream);
      TRYFREE(s);
      return UNZ_OK;
  }
  
  
  /*
    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. */
  int ZEXPORT unzGetGlobalInfo64 (unzFile file, unz_global_info64* pglobal_info)
  {
      unz64_s* s;
      if (file==NULL)
          return UNZ_PARAMERROR;
      s=(unz64_s*)file;
      *pglobal_info=s->gi;
      return UNZ_OK;
  }
  
  int ZEXPORT unzGetGlobalInfo (unzFile file, unz_global_info* pglobal_info32)
  {
      unz64_s* s;
      if (file==NULL)
          return UNZ_PARAMERROR;
      s=(unz64_s*)file;
      /* to do : check if number_entry is not truncated */
      pglobal_info32->number_entry = (uLong)s->gi.number_entry;
      pglobal_info32->size_comment = s->gi.size_comment;
      return UNZ_OK;
  }
  /*
     Translate date/time from Dos format to tm_unz (readable more easilty)
  */
  local void unz64local_DosDateToTmuDate (ZPOS64_T ulDosDate, tm_unz* ptm)
  {
      ZPOS64_T uDate;
      uDate = (ZPOS64_T)(ulDosDate>>16);
      ptm->tm_mday = (uInt)(uDate&0x1f) ;
      ptm->tm_mon =  (uInt)((((uDate)&0x1E0)/0x20)-1) ;
      ptm->tm_year = (uInt)(((uDate&0x0FE00)/0x0200)+1980) ;
  
      ptm->tm_hour = (uInt) ((ulDosDate &0xF800)/0x800);
      ptm->tm_min =  (uInt) ((ulDosDate&0x7E0)/0x20) ;
      ptm->tm_sec =  (uInt) (2*(ulDosDate&0x1f)) ;
  }
  
  /*
    Get Info about the current file in the zipfile, with internal only info
  */
  local int unz64local_GetCurrentFileInfoInternal OF((unzFile file,
                                                    unz_file_info64 *pfile_info,
                                                    unz_file_info64_internal
                                                    *pfile_info_internal,
                                                    char *szFileName,
                                                    uLong fileNameBufferSize,
                                                    void *extraField,
                                                    uLong extraFieldBufferSize,
                                                    char *szComment,
                                                    uLong commentBufferSize));
  
  local int unz64local_GetCurrentFileInfoInternal (unzFile file,
                                                   unz_file_info64 *pfile_info,
                                                   unz_file_info64_internal
                                                   *pfile_info_internal,
                                                   char *szFileName,
                                                   uLong fileNameBufferSize,
                                                   void *extraField,
                                                   uLong extraFieldBufferSize,
                                                   char *szComment,
                                                   uLong commentBufferSize)
  {
      unz64_s* s;
      unz_file_info64 file_info;
      unz_file_info64_internal file_info_internal;
      int err=UNZ_OK;
      uLong uMagic;
      long lSeek=0;
      uLong uL;
  
      if (file==NULL)
          return UNZ_PARAMERROR;
      s=(unz64_s*)file;
      if (ZSEEK64(s->z_filefunc, s->filestream,
                s->pos_in_central_dir+s->byte_before_the_zipfile,
                ZLIB_FILEFUNC_SEEK_SET)!=0)
          err=UNZ_ERRNO;
  
  
      /* we check the magic */
      if (err==UNZ_OK)
      {
          if (unz64local_getLong(&s->z_filefunc, s->filestream,&uMagic) != UNZ_OK)
              err=UNZ_ERRNO;
          else if (uMagic!=0x02014b50)
              err=UNZ_BADZIPFILE;
      }
  
      if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.version) != UNZ_OK)
          err=UNZ_ERRNO;
  
      if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.version_needed) != UNZ_OK)
          err=UNZ_ERRNO;
  
      if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.flag) != UNZ_OK)
          err=UNZ_ERRNO;
  
      if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.compression_method) != UNZ_OK)
          err=UNZ_ERRNO;
  
      if (unz64local_getLong(&s->z_filefunc, s->filestream,&file_info.dosDate) != UNZ_OK)
          err=UNZ_ERRNO;
  
      unz64local_DosDateToTmuDate(file_info.dosDate,&file_info.tmu_date);
  
      if (unz64local_getLong(&s->z_filefunc, s->filestream,&file_info.crc) != UNZ_OK)
          err=UNZ_ERRNO;
  
      if (unz64local_getLong(&s->z_filefunc, s->filestream,&uL) != UNZ_OK)
          err=UNZ_ERRNO;
      file_info.compressed_size = uL;
  
      if (unz64local_getLong(&s->z_filefunc, s->filestream,&uL) != UNZ_OK)
          err=UNZ_ERRNO;
      file_info.uncompressed_size = uL;
  
      if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.size_filename) != UNZ_OK)
          err=UNZ_ERRNO;
  
      if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.size_file_extra) != UNZ_OK)
          err=UNZ_ERRNO;
  
      if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.size_file_comment) != UNZ_OK)
          err=UNZ_ERRNO;
  
      if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.disk_num_start) != UNZ_OK)
          err=UNZ_ERRNO;
  
      if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.internal_fa) != UNZ_OK)
          err=UNZ_ERRNO;
  
      if (unz64local_getLong(&s->z_filefunc, s->filestream,&file_info.external_fa) != UNZ_OK)
          err=UNZ_ERRNO;
  
                  // relative offset of local header
      if (unz64local_getLong(&s->z_filefunc, s->filestream,&uL) != UNZ_OK)
          err=UNZ_ERRNO;
      file_info_internal.offset_curfile = uL;
  
      lSeek+=file_info.size_filename;
      if ((err==UNZ_OK) && (szFileName!=NULL))
      {
          uLong uSizeRead ;
          if (file_info.size_filename<fileNameBufferSize)
          {
              *(szFileName+file_info.size_filename)='\0';
              uSizeRead = file_info.size_filename;
          }
          else
              uSizeRead = fileNameBufferSize;
  
          if ((file_info.size_filename>0) && (fileNameBufferSize>0))
              if (ZREAD64(s->z_filefunc, s->filestream,szFileName,uSizeRead)!=uSizeRead)
                  err=UNZ_ERRNO;
          lSeek -= uSizeRead;
      }
  
      // Read extrafield
      if ((err==UNZ_OK) && (extraField!=NULL))
      {
          ZPOS64_T uSizeRead ;
          if (file_info.size_file_extra<extraFieldBufferSize)
              uSizeRead = file_info.size_file_extra;
          else
              uSizeRead = extraFieldBufferSize;
  
          if (lSeek!=0)
          {
              if (ZSEEK64(s->z_filefunc, s->filestream,lSeek,ZLIB_FILEFUNC_SEEK_CUR)==0)
                  lSeek=0;
              else
                  err=UNZ_ERRNO;
          }
  
          if ((file_info.size_file_extra>0) && (extraFieldBufferSize>0))
              if (ZREAD64(s->z_filefunc, s->filestream,extraField,(uLong)uSizeRead)!=uSizeRead)
                  err=UNZ_ERRNO;
  
          lSeek += file_info.size_file_extra - (uLong)uSizeRead;
      }
      else
          lSeek += file_info.size_file_extra;
  
  
      if ((err==UNZ_OK) && (file_info.size_file_extra != 0))
      {
                                  uLong acc = 0;
  
          // since lSeek now points to after the extra field we need to move back
          lSeek -= file_info.size_file_extra;
  
          if (lSeek!=0)
          {
              if (ZSEEK64(s->z_filefunc, s->filestream,lSeek,ZLIB_FILEFUNC_SEEK_CUR)==0)
                  lSeek=0;
              else
                  err=UNZ_ERRNO;
          }
  
          while(acc < file_info.size_file_extra)
          {
              uLong headerId;
                                                  uLong dataSize;
  
              if (unz64local_getShort(&s->z_filefunc, s->filestream,&headerId) != UNZ_OK)
                  err=UNZ_ERRNO;
  
              if (unz64local_getShort(&s->z_filefunc, s->filestream,&dataSize) != UNZ_OK)
                  err=UNZ_ERRNO;
  
              /* ZIP64 extra fields */
              if (headerId == 0x0001)
              {
                  uLong uL;
                  
                  if(file_info.uncompressed_size == MAXU32)
                  {
                          if (unz64local_getLong64(&s->z_filefunc, s->filestream,&file_info.uncompressed_size) != UNZ_OK)
                                          err=UNZ_ERRNO;
                  }
  
                  if(file_info.compressed_size == MAXU32)
                  {
                          if (unz64local_getLong64(&s->z_filefunc, s->filestream,&file_info.compressed_size) != UNZ_OK)
                                    err=UNZ_ERRNO;
                  }
  
                  if(file_info_internal.offset_curfile == MAXU32)
                  {
                          /* Relative Header offset */
                          if (unz64local_getLong64(&s->z_filefunc, s->filestream,&file_info_internal.offset_curfile) != UNZ_OK)
                                  err=UNZ_ERRNO;
                  }
  
                  if(file_info.disk_num_start == MAXU32)
                  {
                          /* Disk Start Number */
                          if (unz64local_getLong(&s->z_filefunc, s->filestream,&uL) != UNZ_OK)
                                  err=UNZ_ERRNO;
                  }
  
              }
              else
              {
                  if (ZSEEK64(s->z_filefunc, s->filestream,dataSize,ZLIB_FILEFUNC_SEEK_CUR)!=0)
                      err=UNZ_ERRNO;
              }
  
              acc += 2 + 2 + dataSize;
          }
      }
  
      if ((err==UNZ_OK) && (szComment!=NULL))
      {
          uLong uSizeRead ;
          if (file_info.size_file_comment<commentBufferSize)
          {
              *(szComment+file_info.size_file_comment)='\0';
              uSizeRead = file_info.size_file_comment;
          }
          else
              uSizeRead = commentBufferSize;
  
          if (lSeek!=0)
          {
              if (ZSEEK64(s->z_filefunc, s->filestream,lSeek,ZLIB_FILEFUNC_SEEK_CUR)==0)
                  lSeek=0;
              else
                  err=UNZ_ERRNO;
          }
  
          if ((file_info.size_file_comment>0) && (commentBufferSize>0))
              if (ZREAD64(s->z_filefunc, s->filestream,szComment,uSizeRead)!=uSizeRead)
                  err=UNZ_ERRNO;
          lSeek+=file_info.size_file_comment - uSizeRead;
      }
      else
          lSeek+=file_info.size_file_comment;
  
  
      if ((err==UNZ_OK) && (pfile_info!=NULL))
          *pfile_info=file_info;
  
      if ((err==UNZ_OK) && (pfile_info_internal!=NULL))
          *pfile_info_internal=file_info_internal;
  
      return err;
  }
  
  
  
  /*
    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.
  */
  int ZEXPORT unzGetCurrentFileInfo64 (unzFile file,
                                       unz_file_info64 * pfile_info,
                                       char * szFileName, uLong fileNameBufferSize,
                                       void *extraField, uLong extraFieldBufferSize,
                                       char* szComment,  uLong commentBufferSize)
  {
      return unz64local_GetCurrentFileInfoInternal(file,pfile_info,NULL,
                                                  szFileName,fileNameBufferSize,
                                                  extraField,extraFieldBufferSize,
                                                  szComment,commentBufferSize);
  }
  
  int ZEXPORT unzGetCurrentFileInfo (unzFile file,
                                     unz_file_info * pfile_info,
                                     char * szFileName, uLong fileNameBufferSize,
                                     void *extraField, uLong extraFieldBufferSize,
                                     char* szComment,  uLong commentBufferSize)
  {
      int err;
      unz_file_info64 file_info64;
      err = unz64local_GetCurrentFileInfoInternal(file,&file_info64,NULL,
                                                  szFileName,fileNameBufferSize,
                                                  extraField,extraFieldBufferSize,
                                                  szComment,commentBufferSize);
      if ((err==UNZ_OK) && (pfile_info != NULL))
      {
          pfile_info->version = file_info64.version;
          pfile_info->version_needed = file_info64.version_needed;
          pfile_info->flag = file_info64.flag;
          pfile_info->compression_method = file_info64.compression_method;
          pfile_info->dosDate = file_info64.dosDate;
          pfile_info->crc = file_info64.crc;
  
          pfile_info->size_filename = file_info64.size_filename;
          pfile_info->size_file_extra = file_info64.size_file_extra;
          pfile_info->size_file_comment = file_info64.size_file_comment;
  
          pfile_info->disk_num_start = file_info64.disk_num_start;
          pfile_info->internal_fa = file_info64.internal_fa;
          pfile_info->external_fa = file_info64.external_fa;
  
          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;
  }
  /*
    Set the current file of the zipfile to the first file.
    return UNZ_OK if there is no problem
  */
  int ZEXPORT unzGoToFirstFile (unzFile file)
  {
      int err=UNZ_OK;
      unz64_s* s;
      if (file==NULL)
          return UNZ_PARAMERROR;
      s=(unz64_s*)file;
      s->pos_in_central_dir=s->offset_central_dir;
      s->num_file=0;
      err=unz64local_GetCurrentFileInfoInternal(file,&s->cur_file_info,
                                               &s->cur_file_info_internal,
                                               NULL,0,NULL,0,NULL,0);
      s->current_file_ok = (err == UNZ_OK);
      return err;
  }
  
  /*
    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.
  */
  int ZEXPORT unzGoToNextFile (unzFile  file)
  {
      unz64_s* s;
      int err;
  
      if (file==NULL)
          return UNZ_PARAMERROR;
      s=(unz64_s*)file;
      if (!s->current_file_ok)
          return UNZ_END_OF_LIST_OF_FILE;
      if (s->gi.number_entry != 0xffff)    /* 2^16 files overflow hack */
        if (s->num_file+1==s->gi.number_entry)
          return UNZ_END_OF_LIST_OF_FILE;
  
      s->pos_in_central_dir += SIZECENTRALDIRITEM + s->cur_file_info.size_filename +
              s->cur_file_info.size_file_extra + s->cur_file_info.size_file_comment ;
      s->num_file++;
      err = unz64local_GetCurrentFileInfoInternal(file,&s->cur_file_info,
                                                 &s->cur_file_info_internal,
                                                 NULL,0,NULL,0,NULL,0);
      s->current_file_ok = (err == UNZ_OK);
      return err;
  }
  
  
  /*
    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
  */
  int ZEXPORT unzLocateFile (unzFile file, const char *szFileName, int iCaseSensitivity)
  {
      unz64_s* s;
      int err;
  
      /* We remember the 'current' position in the file so that we can jump
       * back there if we fail.
       */
      unz_file_info64 cur_file_infoSaved;
      unz_file_info64_internal cur_file_info_internalSaved;
      ZPOS64_T num_fileSaved;
      ZPOS64_T pos_in_central_dirSaved;
  
  
      if (file==NULL)
          return UNZ_PARAMERROR;
  
      if (strlen(szFileName)>=UNZ_MAXFILENAMEINZIP)
          return UNZ_PARAMERROR;
  
      s=(unz64_s*)file;
      if (!s->current_file_ok)
          return UNZ_END_OF_LIST_OF_FILE;
  
      /* Save the current state */
      num_fileSaved = s->num_file;
      pos_in_central_dirSaved = s->pos_in_central_dir;
      cur_file_infoSaved = s->cur_file_info;
      cur_file_info_internalSaved = s->cur_file_info_internal;
  
      err = unzGoToFirstFile(file);
  
      while (err == UNZ_OK)
      {
          char szCurrentFileName[UNZ_MAXFILENAMEINZIP+1];
          err = unzGetCurrentFileInfo64(file,NULL,
                                      szCurrentFileName,sizeof(szCurrentFileName)-1,
                                      NULL,0,NULL,0);
          if (err == UNZ_OK)
          {
              if (unzStringFileNameCompare(szCurrentFileName,
                                              szFileName,iCaseSensitivity)==0)
                  return UNZ_OK;
              err = unzGoToNextFile(file);
          }
      }
  
      /* We failed, so restore the state of the 'current file' to where we
       * were.
       */
      s->num_file = num_fileSaved ;
      s->pos_in_central_dir = pos_in_central_dirSaved ;
      s->cur_file_info = cur_file_infoSaved;
      s->cur_file_info_internal = cur_file_info_internalSaved;
      return err;
  }
  
  
  int ZEXPORT unzGetFilePos64(unzFile file, unz64_file_pos*  file_pos)
  {
      unz64_s* s;
  
      if (file==NULL || file_pos==NULL)
          return UNZ_PARAMERROR;
      s=(unz64_s*)file;
      if (!s->current_file_ok)
          return UNZ_END_OF_LIST_OF_FILE;
  
      file_pos->pos_in_zip_directory  = s->pos_in_central_dir;
      file_pos->num_of_file           = s->num_file;
  
      return UNZ_OK;
  }
  
  int ZEXPORT unzGetFilePos(
      unzFile file,
      unz_file_pos* file_pos)
  {
      unz64_file_pos file_pos64;
      int err = unzGetFilePos64(file,&file_pos64);
      if (err==UNZ_OK)
      {
          file_pos->pos_in_zip_directory = (uLong)file_pos64.pos_in_zip_directory;
          file_pos->num_of_file = (uLong)file_pos64.num_of_file;
      }
      return err;
  }
  
  int ZEXPORT unzGoToFilePos64(unzFile file, const unz64_file_pos* file_pos)
  {
      unz64_s* s;
      int err;
  
      if (file==NULL || file_pos==NULL)
          return UNZ_PARAMERROR;
      s=(unz64_s*)file;
  
      /* jump to the right spot */
      s->pos_in_central_dir = file_pos->pos_in_zip_directory;
      s->num_file           = file_pos->num_of_file;
  
      /* set the current file */
      err = unz64local_GetCurrentFileInfoInternal(file,&s->cur_file_info,
                                                 &s->cur_file_info_internal,
                                                 NULL,0,NULL,0,NULL,0);
      /* return results */
      s->current_file_ok = (err == UNZ_OK);
      return err;
  }
  
  int ZEXPORT unzGoToFilePos(
      unzFile file,
      unz_file_pos* file_pos)
  {
      unz64_file_pos file_pos64;
      if (file_pos == NULL)
          return UNZ_PARAMERROR;
  
      file_pos64.pos_in_zip_directory = file_pos->pos_in_zip_directory;
      file_pos64.num_of_file = file_pos->num_of_file;
      return unzGoToFilePos64(file,&file_pos64);
  }
  
  /*
  // Unzip Helper Functions - should be here?
  ///////////////////////////////////////////
  */
  
  /*
    Read the local header of the current zipfile
    Check the coherency of the local header and info in the end of central
          directory about this file
    store in *piSizeVar the size of extra info in local header
          (filename and size of extra field data)
  */
  local int unz64local_CheckCurrentFileCoherencyHeader (unz64_s* s, uInt* piSizeVar,
                                                      ZPOS64_T * poffset_local_extrafield,
                                                      uInt  * psize_local_extrafield)
  {
      uLong uMagic,uData,uFlags;
      uLong size_filename;
      uLong size_extra_field;
      int err=UNZ_OK;
  
      *piSizeVar = 0;
      *poffset_local_extrafield = 0;
      *psize_local_extrafield = 0;
  
      if (ZSEEK64(s->z_filefunc, s->filestream,s->cur_file_info_internal.offset_curfile +
                                  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)
              err=UNZ_ERRNO;
          else if (uMagic!=0x04034b50)
              err=UNZ_BADZIPFILE;
      }
  
      if (unz64local_getShort(&s->z_filefunc, s->filestream,&uData) != UNZ_OK)
          err=UNZ_ERRNO;
  
      if (unz64local_getShort(&s->z_filefunc, s->filestream,&uFlags) != UNZ_OK)
          err=UNZ_ERRNO;
  
      if (unz64local_getShort(&s->z_filefunc, s->filestream,&uData) != UNZ_OK)
          err=UNZ_ERRNO;
      else if ((err==UNZ_OK) && (uData!=s->cur_file_info.compression_method))
          err=UNZ_BADZIPFILE;
  
      if ((err==UNZ_OK) && (s->cur_file_info.compression_method!=0) &&
                           (s->cur_file_info.compression_method!=Z_DEFLATED))
          err=UNZ_BADZIPFILE;
  
      if (unz64local_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* date/time */
          err=UNZ_ERRNO;
  
      if (unz64local_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* crc */
          err=UNZ_ERRNO;
      else if ((err==UNZ_OK) && (uData!=s->cur_file_info.crc) && ((uFlags & 8)==0))
          err=UNZ_BADZIPFILE;
  
      if (unz64local_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* size compr */
          err=UNZ_ERRNO;
      else if (uData != 0xFFFFFFFF && (err==UNZ_OK) && (uData!=s->cur_file_info.compressed_size) && ((uFlags & 8)==0))
          err=UNZ_BADZIPFILE;
  
      if (unz64local_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* size uncompr */
          err=UNZ_ERRNO;
      else if (uData != 0xFFFFFFFF && (err==UNZ_OK) && (uData!=s->cur_file_info.uncompressed_size) && ((uFlags & 8)==0))
          err=UNZ_BADZIPFILE;
  
      if (unz64local_getShort(&s->z_filefunc, s->filestream,&size_filename) != UNZ_OK)
          err=UNZ_ERRNO;
      else if ((err==UNZ_OK) && (size_filename!=s->cur_file_info.size_filename))
          err=UNZ_BADZIPFILE;
  
      *piSizeVar += (uInt)size_filename;
  
      if (unz64local_getShort(&s->z_filefunc, s->filestream,&size_extra_field) != UNZ_OK)
          err=UNZ_ERRNO;
      *poffset_local_extrafield= s->cur_file_info_internal.offset_curfile +
                                      SIZEZIPLOCALHEADER + size_filename;
      *psize_local_extrafield = (uInt)size_extra_field;
  
      *piSizeVar += (uInt)size_extra_field;
  
      return err;
  }
  
  /*
    Open for reading data the current file in the zipfile.
    If there is no error and the file is opened, the return value is UNZ_OK.
  */
  int ZEXPORT unzOpenCurrentFile3 (unzFile file, int* method,int* level, int raw, const char* password)
  {
      int err=UNZ_OK;
      uInt iSizeVar;
      unz64_s* s;
      file_in_zip64_read_info_s* pfile_in_zip_read_info;
      ZPOS64_T offset_local_extrafield;  /* offset of the local extra field */
      uInt  size_local_extrafield;    /* size of the local extra field */
  #    ifndef NOUNCRYPT
      char source[12];
  #    else
      if (password != NULL)
          return UNZ_PARAMERROR;
  #    endif
  
      if (file==NULL)
          return UNZ_PARAMERROR;
      s=(unz64_s*)file;
      if (!s->current_file_ok)
          return UNZ_PARAMERROR;
  
      if (s->pfile_in_zip_read != NULL)
          unzCloseCurrentFile(file);
  
      if (unz64local_CheckCurrentFileCoherencyHeader(s,&iSizeVar, &offset_local_extrafield,&size_local_extrafield)!=UNZ_OK)
          return UNZ_BADZIPFILE;
  
      pfile_in_zip_read_info = (file_in_zip64_read_info_s*)ALLOC(sizeof(file_in_zip64_read_info_s));
      if (pfile_in_zip_read_info==NULL)
          return UNZ_INTERNALERROR;
  
      pfile_in_zip_read_info->read_buffer=(char*)ALLOC(UNZ_BUFSIZE);
      pfile_in_zip_read_info->offset_local_extrafield = offset_local_extrafield;
      pfile_in_zip_read_info->size_local_extrafield = size_local_extrafield;
      pfile_in_zip_read_info->pos_local_extrafield=0;
      pfile_in_zip_read_info->raw=raw;
  
      if (pfile_in_zip_read_info->read_buffer==NULL)
      {
          TRYFREE(pfile_in_zip_read_info);
          return UNZ_INTERNALERROR;
      }
  
      pfile_in_zip_read_info->stream_initialised=0;
  
      if (method!=NULL)
          *method = (int)s->cur_file_info.compression_method;
  
      if (level!=NULL)
      {
          *level = 6;
          switch (s->cur_file_info.flag & 0x06)
          {
            case 6 : *level = 1; break;
            case 4 : *level = 2; break;
            case 2 : *level = 9; break;
          }
      }
  
      if ((s->cur_file_info.compression_method!=0) &&
  #ifdef HAVE_BZIP2
          (s->cur_file_info.compression_method!=Z_BZIP2ED) &&
  #endif
          (s->cur_file_info.compression_method!=Z_DEFLATED))
  
          err=UNZ_BADZIPFILE;
  
      pfile_in_zip_read_info->crc32_wait=s->cur_file_info.crc;
      pfile_in_zip_read_info->crc32=0;
      pfile_in_zip_read_info->total_out_64=0;
      pfile_in_zip_read_info->compression_method = s->cur_file_info.compression_method;
      pfile_in_zip_read_info->filestream=s->filestream;
      pfile_in_zip_read_info->z_filefunc=s->z_filefunc;
      pfile_in_zip_read_info->byte_before_the_zipfile=s->byte_before_the_zipfile;
  
      pfile_in_zip_read_info->stream.total_out = 0;
  
      if ((s->cur_file_info.compression_method==Z_DEFLATED) && (!raw))
      {
        pfile_in_zip_read_info->stream.zalloc = (alloc_func)0;
        pfile_in_zip_read_info->stream.zfree = (free_func)0;
        pfile_in_zip_read_info->stream.opaque = (voidpf)0;
        pfile_in_zip_read_info->stream.next_in = 0;
        pfile_in_zip_read_info->stream.avail_in = 0;
  
        err=inflateInit2(&pfile_in_zip_read_info->stream, -MAX_WBITS);
        if (err == Z_OK)
          pfile_in_zip_read_info->stream_initialised=Z_DEFLATED;
        else
        {
          TRYFREE(pfile_in_zip_read_info);
          return err;
        }
          /* windowBits is passed < 0 to tell that there is no zlib header.
           * Note that in this case inflate *requires* an extra "dummy" byte
           * after the compressed stream in order to complete decompression and
           * return Z_STREAM_END.
           * In unzip, i don't wait absolutely Z_STREAM_END because I known the
           * size of both compressed and uncompressed data
           */
      }
      pfile_in_zip_read_info->rest_read_compressed =
              s->cur_file_info.compressed_size ;
      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;
  
      pfile_in_zip_read_info->stream.avail_in = (uInt)0;
  
      s->pfile_in_zip_read = pfile_in_zip_read_info;
                  s->encrypted = 0;
  
  #    ifndef NOUNCRYPT
      if (password != NULL)
      {
          int i;
          s->pcrc_32_tab = get_crc_table();
          init_keys(password,s->keys,s->pcrc_32_tab);
          if (ZSEEK64(s->z_filefunc, s->filestream,
                    s->pfile_in_zip_read->pos_in_zipfile +
                       s->pfile_in_zip_read->byte_before_the_zipfile,
                    SEEK_SET)!=0)
              return UNZ_INTERNALERROR;
          if(ZREAD64(s->z_filefunc, s->filestream,source, 12)<12)
              return UNZ_INTERNALERROR;
  
          for (i = 0; i<12; i++)
              zdecode(s->keys,s->pcrc_32_tab,source[i]);
  
          s->pfile_in_zip_read->pos_in_zipfile+=12;
          s->encrypted=1;
      }
  #    endif
  
  
      return UNZ_OK;
  }
  
  int ZEXPORT unzOpenCurrentFile (unzFile file)
  {
      return unzOpenCurrentFile3(file, NULL, NULL, 0, NULL);
  }
  
  int ZEXPORT unzOpenCurrentFilePassword (unzFile file, const char*  password)
  {
      return unzOpenCurrentFile3(file, NULL, NULL, 0, password);
  }
  
  int ZEXPORT unzOpenCurrentFile2 (unzFile file, int* method, int* level, int raw)
  {
      return unzOpenCurrentFile3(file, method, level, raw, NULL);
  }
  
  /** Addition for GDAL : START */
  
  ZPOS64_T ZEXPORT unzGetCurrentFileZStreamPos64( unzFile file)
  {
      unz64_s* s;
      file_in_zip64_read_info_s* pfile_in_zip_read_info;
      s=(unz64_s*)file;
      if (file==NULL)
          return 0; //UNZ_PARAMERROR;
      pfile_in_zip_read_info=s->pfile_in_zip_read;
      if (pfile_in_zip_read_info==NULL)
          return 0; //UNZ_PARAMERROR;
      return pfile_in_zip_read_info->pos_in_zipfile +
                           pfile_in_zip_read_info->byte_before_the_zipfile;
  }
  
  /** Addition for GDAL : END */
  
  /*
    Read bytes from the current file.
    buf contain buffer where data must be copied
    len the size of buf.
  
    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)
  */
  int ZEXPORT unzReadCurrentFile  (unzFile file, voidp buf, unsigned len)
  {
      int err=UNZ_OK;
      uInt iRead = 0;
      unz64_s* s;
      file_in_zip64_read_info_s* pfile_in_zip_read_info;
      if (file==NULL)
          return UNZ_PARAMERROR;
      s=(unz64_s*)file;
      pfile_in_zip_read_info=s->pfile_in_zip_read;
  
      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)
          return 0;
  
      pfile_in_zip_read_info->stream.next_out = (Bytef*)buf;
  
      pfile_in_zip_read_info->stream.avail_out = (uInt)len;
  
      if ((len>pfile_in_zip_read_info->rest_read_uncompressed) &&
          (!(pfile_in_zip_read_info->raw)))
          pfile_in_zip_read_info->stream.avail_out =
              (uInt)pfile_in_zip_read_info->rest_read_uncompressed;
  
      if ((len>pfile_in_zip_read_info->rest_read_compressed+
             pfile_in_zip_read_info->stream.avail_in) &&
           (pfile_in_zip_read_info->raw))
          pfile_in_zip_read_info->stream.avail_out =
              (uInt)pfile_in_zip_read_info->rest_read_compressed+
              pfile_in_zip_read_info->stream.avail_in;
  
      while (pfile_in_zip_read_info->stream.avail_out>0)
      {
          if ((pfile_in_zip_read_info->stream.avail_in==0) &&
              (pfile_in_zip_read_info->rest_read_compressed>0))
          {
              uInt uReadThis = UNZ_BUFSIZE;
              if (pfile_in_zip_read_info->rest_read_compressed<uReadThis)
                  uReadThis = (uInt)pfile_in_zip_read_info->rest_read_compressed;
              if (uReadThis == 0)
                  return UNZ_EOF;
              if (ZSEEK64(pfile_in_zip_read_info->z_filefunc,
                        pfile_in_zip_read_info->filestream,
                        pfile_in_zip_read_info->pos_in_zipfile +
                           pfile_in_zip_read_info->byte_before_the_zipfile,
                           ZLIB_FILEFUNC_SEEK_SET)!=0)
                  return UNZ_ERRNO;
              if (ZREAD64(pfile_in_zip_read_info->z_filefunc,
                        pfile_in_zip_read_info->filestream,
                        pfile_in_zip_read_info->read_buffer,
                        uReadThis)!=uReadThis)
                  return UNZ_ERRNO;
  
  
  #            ifndef NOUNCRYPT
              if(s->encrypted)
              {
                  uInt i;
                  for(i=0;i<uReadThis;i++)
                    pfile_in_zip_read_info->read_buffer[i] =
                        zdecode(s->keys,s->pcrc_32_tab,
                                pfile_in_zip_read_info->read_buffer[i]);
              }
  #            endif
  
  
              pfile_in_zip_read_info->pos_in_zipfile += uReadThis;
  
              pfile_in_zip_read_info->rest_read_compressed-=uReadThis;
  
              pfile_in_zip_read_info->stream.next_in =
                  (Bytef*)pfile_in_zip_read_info->read_buffer;
              pfile_in_zip_read_info->stream.avail_in = (uInt)uReadThis;
          }
  
          if ((pfile_in_zip_read_info->compression_method==0) || (pfile_in_zip_read_info->raw))
          {
              uInt uDoCopy,i ;
  
              if ((pfile_in_zip_read_info->stream.avail_in == 0) &&
                  (pfile_in_zip_read_info->rest_read_compressed == 0))
                  return (iRead==0) ? UNZ_EOF : iRead;
  
              if (pfile_in_zip_read_info->stream.avail_out <
                              pfile_in_zip_read_info->stream.avail_in)
                  uDoCopy = pfile_in_zip_read_info->stream.avail_out ;
              else
                  uDoCopy = pfile_in_zip_read_info->stream.avail_in ;
  
              for (i=0;i<uDoCopy;i++)
                  *(pfile_in_zip_read_info->stream.next_out+i) =
                          *(pfile_in_zip_read_info->stream.next_in+i);
  
              pfile_in_zip_read_info->total_out_64 = pfile_in_zip_read_info->total_out_64 + uDoCopy;
  
              pfile_in_zip_read_info->crc32 = crc32(pfile_in_zip_read_info->crc32,
                                  pfile_in_zip_read_info->stream.next_out,
                                  uDoCopy);
              pfile_in_zip_read_info->rest_read_uncompressed-=uDoCopy;
              pfile_in_zip_read_info->stream.avail_in -= uDoCopy;
              pfile_in_zip_read_info->stream.avail_out -= uDoCopy;
              pfile_in_zip_read_info->stream.next_out += uDoCopy;
              pfile_in_zip_read_info->stream.next_in += uDoCopy;
              pfile_in_zip_read_info->stream.total_out += uDoCopy;
              iRead += uDoCopy;
          }
          else
          {
              ZPOS64_T uTotalOutBefore,uTotalOutAfter;
              const Bytef *bufBefore;
              ZPOS64_T uOutThis;
              int flush=Z_SYNC_FLUSH;
  
              uTotalOutBefore = pfile_in_zip_read_info->stream.total_out;
              bufBefore = pfile_in_zip_read_info->stream.next_out;
  
              /*
              if ((pfile_in_zip_read_info->rest_read_uncompressed ==
                       pfile_in_zip_read_info->stream.avail_out) &&
                  (pfile_in_zip_read_info->rest_read_compressed == 0))
                  flush = Z_FINISH;
              */
              err=inflate(&pfile_in_zip_read_info->stream,flush);
  
              if ((err>=0) && (pfile_in_zip_read_info->stream.msg!=NULL))
                err = Z_DATA_ERROR;
  
              uTotalOutAfter = pfile_in_zip_read_info->stream.total_out;
              uOutThis = uTotalOutAfter-uTotalOutBefore;
  
              pfile_in_zip_read_info->total_out_64 = pfile_in_zip_read_info->total_out_64 + uOutThis;
  
              pfile_in_zip_read_info->crc32 =
                  crc32(pfile_in_zip_read_info->crc32,bufBefore,
                          (uInt)(uOutThis));
  
              pfile_in_zip_read_info->rest_read_uncompressed -=
                  uOutThis;
  
              iRead += (uInt)(uTotalOutAfter - uTotalOutBefore);
  
              if (err==Z_STREAM_END)
                  return (iRead==0) ? UNZ_EOF : iRead;
              if (err!=Z_OK)
                  break;
          }
      }
  
      if (err==Z_OK)
          return iRead;
      return err;
  }
  
  
  /*
    Give the current position in uncompressed data
  */
  z_off_t ZEXPORT unztell (unzFile file)
  {
      unz64_s* s;
      file_in_zip64_read_info_s* pfile_in_zip_read_info;
      if (file==NULL)
          return UNZ_PARAMERROR;
      s=(unz64_s*)file;
      pfile_in_zip_read_info=s->pfile_in_zip_read;
  
      if (pfile_in_zip_read_info==NULL)
          return UNZ_PARAMERROR;
  
      return (z_off_t)pfile_in_zip_read_info->stream.total_out;
  }
  
  ZPOS64_T ZEXPORT unztell64 (unzFile file)
  {
  
      unz64_s* s;
      file_in_zip64_read_info_s* pfile_in_zip_read_info;
      if (file==NULL)
          return (ZPOS64_T)-1;
      s=(unz64_s*)file;
      pfile_in_zip_read_info=s->pfile_in_zip_read;
  
      if (pfile_in_zip_read_info==NULL)
          return (ZPOS64_T)-1;
  
      return pfile_in_zip_read_info->total_out_64;
  }
  
  
  /*
    return 1 if the end of file was reached, 0 elsewhere
  */
  int ZEXPORT unzeof (unzFile file)
  {
      unz64_s* s;
      file_in_zip64_read_info_s* pfile_in_zip_read_info;
      if (file==NULL)
          return UNZ_PARAMERROR;
      s=(unz64_s*)file;
      pfile_in_zip_read_info=s->pfile_in_zip_read;
  
      if (pfile_in_zip_read_info==NULL)
          return UNZ_PARAMERROR;
  
      if (pfile_in_zip_read_info->rest_read_uncompressed == 0)
          return 1;
      else
          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
  more info in the local-header version than in the central-header)
  
    if buf==NULL, it return the size of the local extra field that can be read
  
    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
  */
  int ZEXPORT unzGetLocalExtrafield (unzFile file, voidp buf, unsigned len)
  {
      unz64_s* s;
      file_in_zip64_read_info_s* pfile_in_zip_read_info;
      uInt read_now;
      ZPOS64_T size_to_read;
  
      if (file==NULL)
          return UNZ_PARAMERROR;
      s=(unz64_s*)file;
      pfile_in_zip_read_info=s->pfile_in_zip_read;
  
      if (pfile_in_zip_read_info==NULL)
          return UNZ_PARAMERROR;
  
      size_to_read = (pfile_in_zip_read_info->size_local_extrafield -
                  pfile_in_zip_read_info->pos_local_extrafield);
  
      if (buf==NULL)
          return (int)size_to_read;
  
      if (len>size_to_read)
          read_now = (uInt)size_to_read;
      else
          read_now = (uInt)len ;
  
      if (read_now==0)
          return 0;
  
      if (ZSEEK64(pfile_in_zip_read_info->z_filefunc,
                pfile_in_zip_read_info->filestream,
                pfile_in_zip_read_info->offset_local_extrafield +
                pfile_in_zip_read_info->pos_local_extrafield,
                ZLIB_FILEFUNC_SEEK_SET)!=0)
          return UNZ_ERRNO;
  
      if (ZREAD64(pfile_in_zip_read_info->z_filefunc,
                pfile_in_zip_read_info->filestream,
                buf,read_now)!=read_now)
          return UNZ_ERRNO;
  
      return (int)read_now;
  }
  
  /*
    Close the file in zip opened with unzOpenCurrentFile
    Return UNZ_CRCERROR if all the file was read but the CRC is not good
  */
  int ZEXPORT unzCloseCurrentFile (unzFile file)
  {
      int err=UNZ_OK;
  
      unz64_s* s;
      file_in_zip64_read_info_s* pfile_in_zip_read_info;
      if (file==NULL)
          return UNZ_PARAMERROR;
      s=(unz64_s*)file;
      pfile_in_zip_read_info=s->pfile_in_zip_read;
  
      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))
      {
          if (pfile_in_zip_read_info->crc32 != pfile_in_zip_read_info->crc32_wait)
              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)
          inflateEnd(&pfile_in_zip_read_info->stream);
  
  
      pfile_in_zip_read_info->stream_initialised = 0;
      TRYFREE(pfile_in_zip_read_info);
  
      s->pfile_in_zip_read=NULL;
  
      return err;
  }
  
  
  /*
    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
  */
  int ZEXPORT unzGetGlobalComment (unzFile file, char * szComment, uLong uSizeBuf)
  {
      unz64_s* s;
      uLong uReadThis ;
      if (file==NULL)
          return (int)UNZ_PARAMERROR;
      s=(unz64_s*)file;
  
      uReadThis = uSizeBuf;
      if (uReadThis>s->gi.size_comment)
          uReadThis = s->gi.size_comment;
  
      if (ZSEEK64(s->z_filefunc,s->filestream,s->central_pos+22,ZLIB_FILEFUNC_SEEK_SET)!=0)
          return UNZ_ERRNO;
  
      if (uReadThis>0)
      {
        *szComment='\0';
        if (ZREAD64(s->z_filefunc,s->filestream,szComment,uReadThis)!=uReadThis)
          return UNZ_ERRNO;
      }
  
      if ((szComment != NULL) && (uSizeBuf > s->gi.size_comment))
          *(szComment+s->gi.size_comment)='\0';
      return (int)uReadThis;
  }
  
  /* Additions by RX '2004 */
  ZPOS64_T ZEXPORT unzGetOffset64(unzFile file)
  {
      unz64_s* s;
  
      if (file==NULL)
            return 0; //UNZ_PARAMERROR;
      s=(unz64_s*)file;
      if (!s->current_file_ok)
        return 0;
      if (s->gi.number_entry != 0 && s->gi.number_entry != 0xffff)
        if (s->num_file==s->gi.number_entry)
           return 0;
      return s->pos_in_central_dir;
  }
  
  uLong ZEXPORT unzGetOffset (unzFile file)
  {
      ZPOS64_T offset64;
  
      if (file==NULL)
            return 0; //UNZ_PARAMERROR;
      offset64 = unzGetOffset64(file);
      return (uLong)offset64;
  }
  
  int ZEXPORT unzSetOffset64(unzFile file, ZPOS64_T pos)
  {
      unz64_s* s;
      int err;
  
      if (file==NULL)
          return UNZ_PARAMERROR;
      s=(unz64_s*)file;
  
      s->pos_in_central_dir = pos;
      s->num_file = s->gi.number_entry;      /* hack */
      err = unz64local_GetCurrentFileInfoInternal(file,&s->cur_file_info,
                                                &s->cur_file_info_internal,
                                                NULL,0,NULL,0,NULL,0);
      s->current_file_ok = (err == UNZ_OK);
      return err;
  }
  
  int ZEXPORT unzSetOffset (unzFile file, uLong pos)
  {
      return unzSetOffset64(file,pos);
  }
  
  void change_file_date(const char *filename,uLong dosdate,tm_unz tmu_date)
  {
    HANDLE hFile;
    FILETIME ftm,ftLocal,ftCreate,ftLastAcc,ftLastWrite;
  
    hFile = CreateFileA(filename,GENERIC_READ | GENERIC_WRITE,
                        0,NULL,OPEN_EXISTING,0,NULL);
    GetFileTime(hFile,&ftCreate,&ftLastAcc,&ftLastWrite);
    DosDateTimeToFileTime((WORD)(dosdate>>16),(WORD)dosdate,&ftLocal);
    LocalFileTimeToFileTime(&ftLocal,&ftm);
    SetFileTime(hFile,&ftm,&ftLastAcc,&ftm);
    CloseHandle(hFile);
  }
  
  
  /* mymkdir and change_file_date are not 100 % portable
     As I don't know well Unix, I wait feedback for the unix portion */
  
  local void write_log(FILE* pf, const char* names)
  {
      WCHAR temp[MAX_PATH] = {0};
      if (!MultiByteToWideChar(CP_ACP, 0, names, -1, temp, MAX_PATH))
      {
          printf("MultiByteToWideChar CP_ACP to unicode error\n");
          return;
      }
      if (temp[wcslen(temp)-1] == L'/' || temp[wcslen(temp)-1] == L'\\')
      {
          temp[wcslen(temp)-1] = L'\0';
      }
      fwrite(temp, 2, wcslen(temp), pf);
      fwrite(L"\r\n", sizeof(WCHAR), 2, pf);
  }
  
  local bool
  path_combine_cur(LPWSTR lpfile, int len)
  {
  #define SIZE 128
      int n = 1;
      if (NULL == lpfile || *lpfile == L' ')
      {
          return false;
      }
      if (lpfile[1] != L':')
      {
          WCHAR name[SIZE + 1] = { 0 };
          if (GetCurrentDirectoryW(SIZE, name) > 0)
          {
              WCHAR tmp_path[MAX_PATH] = { 0 };
              if (PathCombineW(tmp_path, name, lpfile))
              {
                  wchr_replace(tmp_path);
                  n = wnsprintfW(lpfile, len, L"%ls", tmp_path);
              }
          }
      }
      return (n > 0 && n < len);
  #undef SIZE
  }
  
  int do_extract_currentfile(unzFile uf, const char* password, FILE* pf)
  {
      char filename_inzip[MAX_PATH+1];
      char* filename_withoutpath;
      char* p;
      int err=UNZ_OK;
      FILE *fout=NULL;
      void* buf;
      uInt size_buf;
  
      unz_file_info64 file_info;
      uLong ratio=0;
      err = unzGetCurrentFileInfo64(uf,&file_info,filename_inzip,sizeof(filename_inzip),NULL,0,NULL,0);
  
      if (err!=UNZ_OK)
      {
          printf("error %d with zipfile in unzGetCurrentFileInfo\n",err);
          return err;
      }
  
      size_buf = WRITEBUFFERSIZE;
      buf = (void*)malloc(size_buf);
      if (buf==NULL)
      {
          printf("Error allocating memory\n");
          return UNZ_INTERNALERROR;
      }
  
      p = filename_withoutpath = filename_inzip;
      while ((*p) != '\0')
      {
          if (((*p)=='/') || ((*p)=='\\'))
              filename_withoutpath = p+1;
          p++;
      }
  
      if ((*filename_withoutpath)=='\0')
      {
          WCHAR path[MAX_PATH+1] = {0};
          if (!MultiByteToWideChar(CP_ACP, 0, filename_inzip, -1, path, MAX_PATH))
          {
              return 1;
          }
          write_log(pf, filename_inzip);
          printf("creating directory: %s\n",filename_inzip);
          path_combine_cur(path, MAX_PATH);
          create_dir(path);
      }
      else
      {
          const char* write_filename;
          int skip=0;
          write_filename = filename_inzip;
          if (strstr(write_filename, "pwd.txt"))
          {
          	err = unzOpenCurrentFilePassword(uf,NULL);
          }
          else
          {
          	err = unzOpenCurrentFilePassword(uf,password);
          }
          if (err!=UNZ_OK)
          {
              printf("error %d with zipfile in unzOpenCurrentFilePassword\n",err);
          }
  
          if ((skip==0) && (err==UNZ_OK))
          {
              fout=FOPEN_FUNC(write_filename,"wb");
              if (fout==NULL)
              {
                  printf("error opening %s\n",write_filename);
              }
          }
  
          if (fout!=NULL)
          {
              if (pf != NULL && write_filename != NULL)
              {
                  write_log(pf, write_filename);
              }
              printf(" extracting: %s\n",write_filename);
              do
              {
                  err = unzReadCurrentFile(uf,buf,size_buf);
                  if (err<0)
                  {
                      printf("error %d with zipfile in unzReadCurrentFile\n",err);
                      break;
                  }
                  if (err>0)
                      if (fwrite(buf,err,1,fout)!=1)
                      {
                          printf("error in writing extracted file\n");
                          err=UNZ_ERRNO;
                          break;
                      }
              }
              while (err>0);
              if (fout)
                      fclose(fout);
  
              if (err==0)
                  change_file_date(write_filename,file_info.dosDate,
                                   file_info.tmu_date);
          }
  
          if (err==UNZ_OK)
          {
              err = unzCloseCurrentFile (uf);
              if (err!=UNZ_OK)
              {
                  printf("error %d with zipfile in unzCloseCurrentFile\n",err);
              }
          }
          else
              unzCloseCurrentFile(uf); /* don't lose the error */
      }
  
      free(buf);
      return err;
  }
  
  
  int do_extract(unzFile uf, const char* password, LPWSTR log)
  {
      uLong i;
      unz_global_info64 gi;
      int err = UNZ_OK;
      FILE* flog=NULL;
  
      err = unzGetGlobalInfo64(uf,&gi);
      if (err!=UNZ_OK)
      {
          printf("error %d with zipfile in unzGetGlobalInfo \n",err);
          return 1;
      }
      if (true)
      {
          const char *bom = "\xFF\xFE";
          flog = _wfopen(log, L"wb");
          if (flog == NULL)
          {
              return 1;
          }
          fwrite(bom, 1, strlen(bom), flog);
      }
      for (i=0;i<gi.number_entry;i++)
      {
          if ((err = do_extract_currentfile(uf, password, flog)) != UNZ_OK)
              break;
  
          if ((i+1)<gi.number_entry)
          {
              err = unzGoToNextFile(uf);
              if (err!=UNZ_OK)
              {
                  printf("error %d with zipfile in unzGoToNextFile\n",err);
                  break;
              }
          }
      }
      fclose(flog);
      return err;
  }
  
  int unzip_file(LPCWSTR zipfilename, LPCWSTR dirname, LPWSTR log)
  {
      int res = -1;
      unzFile uf=NULL;
      if (!create_dir(dirname))
      {
          return res;
      }
      if (!SetCurrentDirectoryW(dirname))
      {
          printf("Error changing into the path, aborting\n");
          return res;
      }
      if (zipfilename!=NULL)
      {
          zlib_filefunc64_def ffunc;
          fill_win32_filefunc64(&ffunc);
          uf = unzOpen2_64W(zipfilename,&ffunc);
      }
  
      if (uf==NULL)
      {
          printf("Cannot open filename_try\n");
          return res;
      }
      if (true)
      {
          wnsprintfW(log, MAX_PATH, L"%ls\\%ls", dirname, L"update.log");
          res = do_extract(uf, "123", log);
      }
      unzClose(uf);
      return res;
  }
  