Fwd: COLUMNS and LINES environment variables

[Martti Kühne]

On Tue, Sep 1, 2015 at 2:00 AM, Damien Miller <djm at mindrot.org> wrote:
> The problem with doing it via enviornment variables is that they
> will become invalid if the client ever changes the size of their
> window. TTYs support sending SIGWINCH for this and OpenSSH handles
> this already.
>
> Your program should be able to get the correct window size at any
> time using:
>
> struct winsize ws;
> if (ioctl(ttyfd, TIOCGWINSZ, &ws) != 0)
>         error(...);
>
> -d


The issue I have is the redirection of stdin/fd0 which is equal to
in_fd in the function where the patch applied. It must be a pipe, or
no data will be received by the program due to how file descriptors
work. An alternative, probably more agreeable solution would be to
open /dev/tty exclusively for the ioctl.
Thanks for your consideration.

cheers!
mar77i