mcicda: How can we get STATUS_XXX in GetLastError()?

[Francois Gouget]

In dlls/mcicda/mcicda.c we have:

     if (!DeviceIoControl(wmcda->handle, IOCTL_CDROM_READ_Q_CHANNEL, &fmt, sizeof(fmt),
                          &data, sizeof(data), &br, NULL)) {
         if (GetLastError() == STATUS_NO_MEDIA_IN_DEVICE) mode = MCI_MODE_OPEN;

However DeviceIoControl() does the following:

    if (status) SetLastError( RtlNtStatusToDosError(status) );
    return !status;
}

And RtlNtStatusToDosError() converts STATUS_NO_MEDIA_IN_DEVICE to 
ERROR_NOT_READY. So GetLastError() cannot return 
STATUS_NO_MEDIA_IN_DEVICE. Or did I miss something? Maybe the right 
thing would be to check the return value of DeviceIoControl() rather 
than GetLastError()?


However, in MCICDA_GetError() we have a similar check:


 static	int	MCICDA_GetError(WINE_MCICDAUDIO* wmcda)
 {
     switch (GetLastError())
     {
     case STATUS_NO_MEDIA_IN_DEVICE:     return MCIERR_DEVICE_NOT_READY;
     case STATUS_IO_DEVICE_ERROR:        return MCIERR_HARDWARE;
     default:
 	FIXME("Unknown mode %x\n", GetLastError());
     }

Again, as far as I can see, GetLastError() cannot return these two 
STATUS_XXX values so this check seems wrong.


-- 
Francois Gouget <fgouget(a)free.fr>              http://fgouget.free.fr/
 Advice is what we ask for when we already know the answer but wish we didn't
                                 -- Eric Jong

[Hans Leidekker]

On Friday 05 January 2007 13:03, Francois Gouget wrote:
> And RtlNtStatusToDosError() converts STATUS_NO_MEDIA_IN_DEVICE to 
> ERROR_NOT_READY. So GetLastError() cannot return 
> STATUS_NO_MEDIA_IN_DEVICE. Or did I miss something? Maybe the right 
> thing would be to check the return value of DeviceIoControl() rather 
> than GetLastError()?

Maybe it should call NtDeviceIoControlFile() instead of DeviceIoControl()?

 -Hans

[Eric Pouech]

Francois Gouget a écrit :
> In dlls/mcicda/mcicda.c we have:
>
> if (!DeviceIoControl(wmcda->handle, IOCTL_CDROM_READ_Q_CHANNEL, &fmt, sizeof(fmt),
>                           &data, sizeof(data), &br, NULL)) {
>          if (GetLastError() == STATUS_NO_MEDIA_IN_DEVICE) mode = MCI_MODE_OPEN;
>
> However DeviceIoControl() does the following:
>
> if (status) SetLastError( RtlNtStatusToDosError(status) );
>     return !status;
> }
>
> And RtlNtStatusToDosError() converts STATUS_NO_MEDIA_IN_DEVICE to 
> ERROR_NOT_READY. So GetLastError() cannot return 
> STATUS_NO_MEDIA_IN_DEVICE. Or did I miss something? Maybe the right 
> thing would be to check the return value of DeviceIoControl() rather 
> than GetLastError()?
>
> However, in MCICDA_GetError() we have a similar check:
>
> static	int	MCICDA_GetError(WINE_MCICDAUDIO* wmcda)
>  {
>      switch (GetLastError())
>      {
>      case STATUS_NO_MEDIA_IN_DEVICE:     return MCIERR_DEVICE_NOT_READY;
>      case STATUS_IO_DEVICE_ERROR:        return MCIERR_HARDWARE;
>      default:
>   FIXME("Unknown mode %x\n", GetLastError());
>      }
>
> Again, as far as I can see, GetLastError() cannot return these two 
> STATUS_XXX values so this check seems wrong.

you're right, the NT error codes should be converted into their win32 
equivalents
A+