Re: [Bug-ddrescue] Feature request: Print drive size even if drive name is available

[Christian Franke]

Hello Antonio,

Antonio Diaz Diaz wrote:
> Christian Franke wrote:
> > it is very useful that the drive name+serial is printed on --ask if
> > known. But unfortunately the size is no longer printed then.
> >
> > An additional size info would be in particular useful when a partition
> > is addressed (e.g. /dev/sda3) instead of the whole drive.
>
> Thanks for the suggestion. I'll see how (or if) this can be 
> implemented correctly (showing the real size of the partition).

The "size = lseek(fd, 0, SEEK_END)" method already in 
device_id_or_size() also works for partitions.

Without --enable-non-posix, ddrescue-1.21 --ask shows the correct size 
of disks, partitions and CD/DVDs (at least on Linux and Windows).

I would suggest:
For regular files: Keep current behavior (Print size only, empty if file 
does not exist)
If device_id() succeeds: Print the DEVICE_ID and the size.
Otherwise: Print some fixed string (e.g. "UNKNOWN") and the size.

Thanks,
Christian