[PATCH] Fix getlogin() to check only stdin to get a valid tty

[Stefan Tauner]

On Thu, 13 Jul 2023 18:57:32 +0200
Jordi Sanfeliu via Newlib <newlib@sourceware.org> wrote:

> -  if (((tty = ttyname (0)) == 0)
> -      || ((tty = ttyname (1)) == 0)
> -      || ((tty = ttyname (2)) == 0))
> -    return 0;
> +  if ((tty = ttyname (0)) == 0)
> +      if ((tty = ttyname (1)) == 0)
> +          if ((tty = ttyname (2)) == 0)
> +              return 0;

IMHO the bug arose simply because of a || vs. && confusion. You can
just replace the || with && and have exactly the same effect as this
patch but it would be more customary.
-- 
Kind regards/Mit freundlichen Grüßen, Stefan Tauner