filepro menus and Ctrl-S - maybe Anzio setting?

[Bruce Easton]

On 12/6/10 3:49 PM, Fairlight wrote:
> In the relative spacial/temporal region of
> Mon, Dec 06, 2010 at 03:38:20PM -0500, Bruce Easton achieved the spontaneous
> generation of the following:
>> A client has a few menus that have nineteen options on them.
>> The first character on each of these menus is a Ctrl-S.  (I think
>> dmakemenu starts at Ctrl-A and then goes up by one - up through the
>> last non-blank option - so on these menus, the nineteenth option
>> is the last option, ergo the Ctrl-S as the first char in the file.)
>>
>> Anyway, when they run via Anzio, the screen is frozen when you
>> arrive at the menu and a Ctrl-Q needs to be typed to unfreeze
>> the screen.   Easily fixable inserting a blank line somewhere on
>> the menu so that the last non-blank option is above 19.  Also,
>> I understand you do not get this behavior using putty.   I don't
>> get it coming from mac term using xterm.
>>
>> I don't have an Anzio here, so I'm wondering - is there something
>> that can be set in Anzio that will ignore the Ctrl-S?  And for that
>> matter, what about the other standard Unix/Linux keyboard
>> short-cuts - if it's hearing Ctrl-S, then wouldn't it hear Ctrl-B,
>> or Ctrl-C, etc. when it might be the first char in the menu file?
> Bruce, Bruce, Bruce,
>
> How long have you been doing unix, man?  :)  *poke*
>
> As regards terminal flow control, ^S is stop in stty settings, same as
> ^Q is start.  You -can- use stty to turn the flow control characters to
> something else.  That'd be non-standard.  You can even technically disable
> flow control entirely (bad idea), especially if you do passthrough printing
> on a slow connection).
> I'd just avoid ^S and ^Q, same as I'd avoid ^Z and ^C (well, ^C needs to be
> avoided if INTR is set to that...it will be by default on linux, it won't
> be on SCO, which uses ^? [Delete] instead).  Actually, `stty -a` and look
> at the full settings of key bindings to avoid.
>
> And just so you don't take the ribbing too hard...  My best friend, back in
> our early *nix days, we were on a BSD 4.3 Tahoe system running on a Unisys
> 7000.  He changed his password, and we always went for secure passwords.
> He made his ^Skullz with a ^S instead of just a capital S.  I laughed for
> about three minutes straight when he expressed his confusion as to why the
> login process seemed to just hang indefinitely when he was logging in.  :)
> Totally cracked me up.  I hit ^Q for him, and told him to reset his
> password to something sane.  :)
> mark->
Yeah - this involved a copy over to a new Linux box, so I'm suspecting 
that something in the termcap that Anzio is using, or a setting in 
Anzio? didn't get preserved.  But I never notice these control 
characters as a first char in menu files before.  I do remember back 
when we were using Exceed I think it was, where you'd inadvertently type 
a ctrl-S and everything would freeze until you typed a ctrl-Q.  But 
since then - i've not had to deal with this.

I must admit - I've sheltered myself on purpose over the years when it 
comes to terminal and printer issues.   :)

Bruce