openssh unix dev - Dec 2005 - Force TTY

Hi all,

I'm having problems with getting a tty against an extreme switch. I've
tried
with the -t flag that is supposed to force a tty but it's not working.

I checked the code in ssh.c where this option is parsed:

case 't':
  if (tty_flag)
    force_tty_flag = 1;
  tty_flag = 1;
  break;

The tty_flag is initialized to 0 and what I can see this flag is always 0 at 
this stage in the code. Thus it is impossible to set the force_tty_flag to 
1.

Is this done intentionally or is it a bug? Why the if statement?

Best Regards,
Olle

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olle ollesson wrote:
> I'm having problems with getting a tty against an extreme switch.
I've tried
> with the -t flag that is supposed to force a tty but it's not working.
> 
> I checked the code in ssh.c where this option is parsed:
> 
> case 't':
>   if (tty_flag)
>     force_tty_flag = 1;
>   tty_flag = 1;
>   break;
> 
> The tty_flag is initialized to 0 and what I can see this flag is always 0
at
> this stage in the code. Thus it is impossible to set the force_tty_flag to 
> 1.
Hint: the case is inside a loop, so that might run more than once.
> Is this done intentionally or is it a bug? Why the if statement?
"ssh -t -t" forces pty allocation.

-- 
Darren Tucker (dtucker at zip.com.au)
GPG key 8FF4FA69 / D9A3 86E9 7EEE AF4B B2D4  37C9 C982 80C7 8FF4 FA69
     Good judgement comes with experience. Unfortunately, the experience
usually comes from bad judgement.