解压cab的代码 msdn上的

解压cab的代码 msdn上的

BOOL ExtractCabinetFiles(                         LPSTR pszCabinetName,                          LPSTR pszCabinetPath,                         LPSTR pszDestinationDir                          ){    ERF  erf;         //FDI error structure    HFDI hfdi = NULL; //FDI handle    BOOL bSuccessful = FALSE;    //Creates the FDI context    hfdi = FDICreate(fnMemAlloc,  //function to allocate memory                     fnMemFree,   //function to free memory                     fnFileOpen,  //function to open a file                     fnFileRead,  //function to read data from a file                     fnFileWrite, //function to write data to a file                     fnFileClose, //function to close a file                     fnFileSeek,  //function to move the file pointer              cpuUNKNOWN,  //only used by the 16-bit version of FDI                     &erf);       //pointer the FDI error structure    if ( hfdi == NULL )    {        printf("FDICreate failed with error code %d: %s\n",               erf.erfOper,               FDIErrorToString((FDIERROR)erf.erfOper));        goto CLEANUP;    }    //Extract the files from the cabinet    if ( FDICopy(hfdi,                        //FDI handle                 pszCabinetName,              //the cabinet name                 pszCabinetPath,              //the cabinet path                 0,                           //not used, set to zero                 fnNotify,                    //function for notifications                 NULL,                        //not used, set to NULL                 pszDestinationDir) == FALSE )//this value is application-specific     {        printf("FDICopy failed with error code %d: %s\n",               erf.erfOper,               FDIErrorToString((FDIERROR)erf.erfOper));        goto CLEANUP;    }    bSuccessful = TRUE;CLEANUP:        //Destory the FDI context    if ( hfdi != NULL )    {        if ( FDIDestroy(hfdi) != TRUE )        {            printf("FDIDestroy failed with error code %d: %s\n",                   erf.erfOper,                   FDIErrorToString((FDIERROR)erf.erfOper));        }    }    return bSuccessful;}

FNOPEN(fnFileOpen){    HANDLE hFile = NULL;    DWORD dwDesiredAccess = 0;     DWORD dwCreationDisposition = 0;

    UNREFERENCED_PARAMETER(pmode);

    if ( oflag & _O_RDWR )    {        dwDesiredAccess = GENERIC_READ | GENERIC_WRITE;    }    else if ( oflag & _O_WRONLY )    {        dwDesiredAccess = GENERIC_WRITE;    }    else    {        dwDesiredAccess = GENERIC_READ;    }

    if ( oflag & _O_CREAT )    {        dwCreationDisposition = CREATE_ALWAYS;    }    else    {        dwCreationDisposition = OPEN_EXISTING;    }

    hFile = CreateFileA(pszFile,                         dwDesiredAccess,                        FILE_SHARE_READ,                        NULL,                        dwCreationDisposition,                        FILE_ATTRIBUTE_NORMAL,                        NULL);

    return (INT_PTR)hFile;}FNREAD(fnFileRead){    DWORD dwBytesRead = 0;

    if ( ReadFile((HANDLE)hf, pv, cb, &dwBytesRead, NULL) == FALSE )    {        dwBytesRead = (DWORD)-1L;    }                 return dwBytesRead;}FNWRITE(fnFileWrite){    DWORD dwBytesWritten = 0;

    if ( WriteFile((HANDLE)hf, pv, cb, &dwBytesWritten, NULL) == FALSE )    {        dwBytesWritten = (DWORD)-1;    }

    return dwBytesWritten;}FNCLOSE(fnFileClose){    return ( CloseHandle((HANDLE)hf) == TRUE ) ? 0 : -1;}FNSEEK(fnFileSeek){    return SetFilePointer((HANDLE)hf, dist, NULL, seektype);}

 
FNFDINOTIFY(fnNotify){    INT_PTR iResult = 0;
    switch(fdint)    {        case fdintCOPY_FILE:        {            CHAR cResponse;            CHAR pszNewFileName[MAX_PATH];            LPSTR pszFileName;            HRESULT hr = S_OK;
        //TODO Validate if file name contains characters             //that are not allowed by the file system.
            //Remove any directory structure from the file name in cabinet
            pszFileName = strrchr(pfdin->psz1, '\\');
            if ( pszFileName == NULL )            {                pszFileName = pfdin->psz1;            }
            //Append the destination directory to the file name.
            hr = StringCchPrintfA(pszNewFileName,                                  ARRAYSIZE(pszNewFileName),                                  "%s\\%s",                                  pfdin->pv,    //Destination directory provided by user                                  pszFileName);
            if ( SUCCEEDED(hr) )            {                printf("Extract File \"%s\" (Size: %d bytes) -> \"%s\"? (Yes/No/Quit): ",                       pfdin->psz1,                       pfdin->cb,                       pszNewFileName); //uncompressed size of file
                do                {                    cResponse = (CHAR)_getch();                    cResponse = (CHAR)toupper(cResponse);                } while ( cResponse != 'Y' && cResponse != 'N' && cResponse != 'Q');                printf("\n");
                if ( cResponse == 'Y' )                {                                                           iResult = fnFileOpen(pszNewFileName, _O_WRONLY | _O_CREAT, 0);                  }                else if ( cResponse == 'Q' )                {                    iResult = -1;                }                            }            else            {                printf("Failed to append file name \"%s\" to destination directory \"%s\"\n",                       pszFileName,                       pfdin->pv);                iResult = -1;            }
            break;        }        case fdintCLOSE_FILE_INFO:        {            FILETIME fileTime;            FILETIME fileTimeLocal;            FILE_BASIC_INFO fbi;                        //Converts MS-DOS date and time values to a file time
            if ( DosDateTimeToFileTime(pfdin->date, pfdin->time, &fileTime) == TRUE &&                 LocalFileTimeToFileTime(&fileTime, &fileTimeLocal) == TRUE )            {                fbi.CreationTime.LowPart = fileTimeLocal.dwLowDateTime;                fbi.CreationTime.HighPart = fileTimeLocal.dwHighDateTime;                fbi.LastWriteTime.QuadPart = -1;                fbi.ChangeTime.QuadPart = -1;                fbi.LastAccessTime.QuadPart = -1;
                //Retrieve the file attributes.
                fbi.FileAttributes = pfdin->attribs;                fbi.FileAttributes &= ( _A_RDONLY | _A_HIDDEN |                                         _A_SYSTEM | _A_ARCH     );
                //Set the date, time and attributes
                SetFileInformationByHandle((HANDLE)pfdin->hf,                                           FileBasicInfo,                                           &fbi,                                           sizeof(FILE_BASIC_INFO));            }
            iResult = !fnFileClose(pfdin->hf);
            break;        }        case fdintNEXT_CABINET:            if ( pfdin->fdie != FDIERROR_NONE )            {                printf("Failed to process the spanned cabinet file \"%s\""                       "with error code %d: %s\n",                       pfdin->psz1,                       pfdin->fdie,                       FDIErrorToString(pfdin->fdie));                iResult = -1;            }            break;        case fdintPARTIAL_FILE:            iResult = 0;            break;        case fdintCABINET_INFO:            iResult = 0;            break;        case fdintENUMERATE:            iResult = 0;            break;        default:            iResult = -1;            break;    }
    return iResult;}