620   CrashFile *pWrapper = (CrashFile *)pFile;  in cfOpen()  local
621   sqlite3_file *pReal = (sqlite3_file*)&pWrapper[1];  in cfOpen()
623   memset(pWrapper, 0, sizeof(CrashFile));  in cfOpen()
628     pWrapper->pMethod = &CrashFileVtab;  in cfOpen()
629     pWrapper->zName = (char *)zName;  in cfOpen()
630     pWrapper->pRealFile = pReal;  in cfOpen()
632     pWrapper->iSize = (int)iSize;  in cfOpen()
633     pWrapper->flags = flags;  in cfOpen()
636     pWrapper->nData = (int)(4096 + pWrapper->iSize);  in cfOpen()
637     pWrapper->zData = crash_malloc(pWrapper->nData);  in cfOpen()
638     if( pWrapper->zData ){  in cfOpen()
649       memset(pWrapper->zData, 0, pWrapper->nData);  in cfOpen()
650       for(iOff=0; iOff<pWrapper->iSize; iOff += 512){  in cfOpen()
651         int nRead = (int)(pWrapper->iSize - iOff);  in cfOpen()
653         rc = sqlite3OsRead(pReal, &pWrapper->zData[iOff], nRead, iOff);  in cfOpen()
659   if( rc!=SQLITE_OK && pWrapper->pMethod ){  in cfOpen()