text: /* ioapi.h -- IO base function header for compress/uncompress .zip
     part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
  
           Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
  
           Modifications for Zip64 support
           Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
  
           For more info read MiniZip_info.txt
  
  */
  
  #include "ioapi.h"
  
  namespace cocos2d {
  
  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) == ((uLong)-1))
              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))
      {
  #if (CC_TARGET_PLATFORM == CC_PLATFORM_MARMALADE || CC_TARGET_PLATFORM == CC_PLATFORM_BADA) || (CC_TARGET_PLATFORM == CC_PLATFORM_BLACKBERRY)
          file = NULL;
  #else
          file = fopen64((const char*)filename, mode_fopen);    
  #endif
      }
  
      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;
  #if (CC_TARGET_PLATFORM == CC_PLATFORM_MARMALADE || CC_TARGET_PLATFORM == CC_PLATFORM_BADA) || (CC_TARGET_PLATFORM == CC_PLATFORM_BLACKBERRY)
      ret = NULL;
  #else
      ret = ftello64((FILE *)stream);
  #endif
      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 (CC_TARGET_PLATFORM == CC_PLATFORM_MARMALADE || CC_TARGET_PLATFORM == CC_PLATFORM_BADA) || (CC_TARGET_PLATFORM == CC_PLATFORM_BLACKBERRY)
      ret = -1;
  #else
      if(fseeko64((FILE *)stream, offset, fseek_origin) != 0)
          ret = -1;
  #endif
      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 (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;
  }
  
  } // end of namespace cocos2d
  