[PATCH] Cygwin: pty: Fix a bug regarding ESC[?3h and ESC[?3l handling.
Corinna Vinschen
corinna-cygwin@cygwin.com
Wed Dec 18 19:25:00 GMT 2019
On Dec 19 01:07, Takashi Yano wrote:
> - Midnight commander (mc) does not work after the commit
> 1626569222066ee601f6c41b29efcc95202674b7 as reported in
> https://www.cygwin.com/ml/cygwin/2019-12/msg00173.html.
> This patch fixes the issue.
> ---
> winsup/cygwin/fhandler_tty.cc | 7 +++++--
> 1 file changed, 5 insertions(+), 2 deletions(-)
>
> diff --git a/winsup/cygwin/fhandler_tty.cc b/winsup/cygwin/fhandler_tty.cc
> index 1d344c7fe..8c3a6e72e 100644
> --- a/winsup/cygwin/fhandler_tty.cc
> +++ b/winsup/cygwin/fhandler_tty.cc
> @@ -1262,16 +1262,19 @@ fhandler_pty_slave::push_to_pcon_screenbuffer (const char *ptr, size_t len)
> while ((p0 = (char *) memmem (p0, nlen - (p0 - buf), "\033[?", 3)))
> {
> p0 += 3;
> - while (p0 < buf + nlen && *p0 != 'h' && *p0 != 'l')
> + bool exist_arg_3 = false;
> + while (p0 < buf + nlen && !isalpha (*p0))
> {
> int arg = 0;
> while (p0 < buf + nlen && isdigit (*p0))
> arg = arg * 10 + (*p0 ++) - '0';
> if (arg == 3)
> - get_ttyp ()->need_redraw_screen = true;
> + exist_arg_3 = true;
> if (p0 < buf + nlen && *p0 == ';')
> p0 ++;
> }
> + if (p0 < buf + nlen && exist_arg_3 && (*p0 == 'h' || *p0 == 'l'))
> + get_ttyp ()->need_redraw_screen = true;
> p0 ++;
> if (p0 >= buf + nlen)
> break;
> --
> 2.21.0
Pushed, thanks.
Corinna
--
Corinna Vinschen
Cygwin Maintainer
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