Re: For review: seccomp_user_notif(2) manual page

[Kees Cook]

On Mon, Oct 26, 2020 at 11:31:01AM +0100, Jann Horn wrote:
> Or I guess we could also just set O_NONBLOCK on the fd by default?
> Since the one existing user is eventloop-based...

I thought about that initially, but it rubs me the wrong way: it
violates least-surprise for me. File descriptors are expected to be
default-blocking. It *is* a special fd, though, so maybe it could work.
The only case I can think of it would break would be ioctl-loop case
that is already buggy in that it didn't handle non-zero returns?

-- 
Kees Cook