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SubjectRe: Inconsistency between PTY read() return values
On Wed, 8 Apr 2009 19:56:03 +0200
Ed Schouten <ed@FreeBSD.org> wrote:

> Hi Alan,
>
> * Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:
> > I would argue that TTYs do behave this way. We treat the disconnect as a
> > hang up event. BSD sees it as EOF, Linux as hangup.
>
> Would you mind explaining me the difference? I thought a modem
> disconnect implies an end-of-file condition?

A modem disconnect is a hang up which is quite different to an EOF and is
effectively a security barrier as well (existing users of the tty port
lose access to it aka revoke())


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