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
