Re: strange char echo

[Bryan Christ]

I added these lines to my application (after initscr) and the problem
went away...

tcgetattr(STDIN_FILENO,&term_desc);
term_desc.c_lflag &= ~(ECHO);
tcsetattr(STDIN_FILENO,TCSADRAIN,&term_desc);

The version of ncurses I am using is:
ncurses = 5.7 (20081102)

Any known bugs of this nature with this build?

On Fri, 2009-11-06 at 21:36 +0000, Thomas Dickey wrote: 
> On Fri, 6 Nov 2009, Bryan Christ wrote:
> 
> > Now that I think of it, I've only seen this problem when I try to run my
> > software on a remote systems via SSH.  I just tried to reproduce it
> > locally and couldn't.  The problem manifests 9 out of 10 times on remote
> > connections.  When I tried it 10 times locally, 100% pass.
> >
> > Thoughts?
> 
> just guessing - ssh may not be passing the ioctl information along
> fast enough to make it look as if it succeeded.
> 
> I'd investigate it by building the application with ncurses' tracing
> turned on (normally a feature of the debug-library...).
> 
> >
> > On Thu, 2009-11-05 at 23:56 +0000, Thomas Dickey wrote:
> >> On Thu, 5 Nov 2009, Bryan Christ wrote:
> >>
> >>> does anyone know what might cause characters to be echoed to the screen
> >>> even though noecho() was called at startup?
> >>
> >> aside from a new bug report?
> >>
> >> It's possible that the ioctl to disable echoing is failing, e.g., if
> >> stdout is redirected.
> >>
> >> (n)curses disables echo at initialization, and simulates the echo/noecho
> >> behavior.
> >>
> >
> >
>