But, as I described in my original message, you use /proc/self/fd to
find where the fd came from. Or are you saying that you can't rely on
having /proc available?
Or do you have other reasons not to like the scheme I described? One
of the reasons I like it is because it requires no new kernel code.
> That said, I still think the real problem is rampant use of ioctl's,
> which are a bad idea in the first place. Magic numbers are always
> bad, and are a sign of bad design.
No argument from me.
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