[lxc-devel] host consoles/ttys in containers

[Daniel Lezcano]

Michael Tokarev wrote:
> Michael Tokarev wrote:
>> I noticed that container's consoles aren't quite useable
>> (be it lxc-console or lxc-start with getty bound to /dev/console).
>>
>> The main problem is a complete lack of window resizing support:
>> when I resize an xterm window with lxc-start or lxc-console, the
>> "guest" does not know about that and continues to think that the
>> terminal is 80x25 still.
>>
>> Is it just a lack of functionality (missing implementation) or
>> something problematic?
>
> Ok, the attached patch fixes this.
>
> It moves the 'master' variable out of main function so it's
> accessible from the signal handler, sets up SIGWINCH handler
> to call a (newly created) winsz() function that gets the
> current tty size using TIOCGWINSZ ioctl and if that works,
> sets up the pty size using TIOCSWINSZ.  That same function
> is called at the start as well, when setting up the signal
> handler.
Cool ! Applied, thanks !

  -- Daniel