Problem redirecting stderr to pipe in subprocess
Tue Oct 11 17:18:00 GMT 2011
On Oct 11 13:08, Christopher Faylor wrote:
> On Tue, Oct 11, 2011 at 02:17:42PM +0200, Corinna Vinschen wrote:
> >On Oct 10 18:06, Christopher Faylor wrote:
> >> When the tty layer in Cygwin was first developed, the model (either in
> >> my head or in reality) was "If you don't have a tty and open a tty, that
> >> becomes your controlling tty". But, apparently that model changed over
> >> time to something more sensical where you have to explicitly use
> >> ioctl(TIOCSCTTY) to set up a controlling terminal.
> >I don't quite understand this. The "If you don't have a tty and open a tty,
> >that becomes your controlling tty" is standard POSIX behaviour, isn't it?
> >SUSv4 open writes:
> > O_NOCTTY
> > If set and path identifies a terminal device, open() shall not
> > cause the terminal device to become the controlling terminal for
> > the process. If path does not identify a terminal device,
> > O_NOCTTY shall be ignored.
> >The Linux man page contains basically the same.
> Check out the linux info page. It's more talkative.
Uh, ok. Thanks for the pointer.
Corinna Vinschen Please, send mails regarding Cygwin to
Cygwin Project Co-Leader cygwin AT cygwin DOT com
Problem reports: http://cygwin.com/problems.html
Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
More information about the Cygwin