tcgetpgrp

[Corinna Vinschen]

On Oct  8 07:34, Andy Koppe wrote:
> I'm having trouble with this change:
> 
>         * fhandler_termios.cc (fhandler_termios::tcgetpgrp): Only return
>         valid pgid if tty is controlling tty.  Set errno to ENOTTY and
>         return -1 otherwise.
> 
> Mintty uses the following call to create its pty:
> 
>   openpty (&parent_fd, &child_fd, 0, 0, winp)
> 
> It then forks a child process which calls login_tty(child_fd) and
> execs the shell or other command. Meanwhile, the parent mintty process
> retains the child_fd, so that it can find out what the current
> foreground process of the pty is, using tcgetpgrp(child_fd).
> /proc/<id>/cwd then allows it to find the current working directory of
> the foreground process.
> 
> This is used for a new feature in mintty-0.5: Ctrl+clicking on a file
> to open it via cygstart, whereby the current working directory of the
> foreground process is needed for relative paths. This worked fine up
> to 1.7.0-62, but due to the change above it no longer works on
> cygwin-cvs.
> 
> Is it really necessary to restrict tcgetpgrp() in that way? I

STC?


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat