SGTTY support in mgetty

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Hello,

Gregor Hoffleit wrote:
> Well, more and more I come to the conclusion that POSIX support with 
> NEXTSTEP is _really_ evil. 

*sigh*

> Now I found a patch file were somebody already 
> started to implment parts of the missing sgtty support for mgetty.

Oh? Where? Wanna have!

> As I can see, the most important difference to termios seems to be that 
> the functionality is distributed over three different interfaces, and 
> only one of them is used yet, sgtty. 

One thing is that there are more functions to use, not just the generic
termios structure with tcsetattr()/tcgetattr(). Another thing is that some
things are simply not doable with sgtty, because it's less powerful -- 
but I *think* it should do everything mgetty needs.

> Any ideas how much work it really is to implement the missing stuff ? Are 
> there any other places to look for besides the 'not yet implemented ' 
> messages ?

Most of it is in tio.c, #ifdef BSD_SGTTY. 

Gettydefs support can't be used with SGTTY (because the concepts are
too different).

do_chat.c wants SYSV_TERMIO or POSIX_TERMIOS for "clean_line", but you
can work around that by defining -DBROKEN_VTIME.

That should be all -- it shouldn't be very hard, maybe a day or two of
adapting tio.c. I'd do it myself, but I don't have a system which still
fully supports sgtty for testing.

gert

PS: I'll gladly incorporate your changes into tio.c -- which will make it
"the final portable Terminal IO library" :))
-- 
                                                            //www.muc.de/~gert
Gert Doering - Munich, Germany                             gert@greenie.muc.de
fax: +49-89-3545980 <---new!!!              gert.doering@physik.tu-muenchen.de