Re: LANANA: To Pending Device Number Registrants

Andrzej Krzysztofowicz
2001-05-16T07:28:33Z

>
> OK, just correct me if I get this wrong, but this code is taking the LAST 2
> characters of the device name and verifying that it is "cd". Which would
> mean that the standard states that "/dev/ginsucd" would be a CD-ROM drive?
>
> That is why I feel a "name" of a device handle shouldnt set how a driver
> operates in this fashion... if you make a small error in your compare, you
> might try to eject a Ginsu Cabbage Dicer instead of a cdrom drive... OOPS!
>
> Sam Bingner
>
> Alan Cox writes:
> > > len = readlink ("/proc/self/3", buffer, buflen);
> > > if (strcmp (buffer + len - 2, "cd") != 0) {
> > > fprintf (stderr, "Not a CD-ROM! Bugger off.\n");
> > > exit (1);
> >
> > And on my box cd is the cabbage dicer whoops
>
> Actually, no, because it's guaranteed that a trailing "/cd" is a
> CD-ROM. That's the standard.

Sure, you no longer support /dev/sdcd (eighty-second SCSI disk)...
;)

Andrzej