Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!apple!vsi1!daver!tscs!tct!chip
From: chip@tct.uucp (Chip Salzenberg)
Newsgroups: comp.unix.programmer
Subject: Re: winsize struct
Message-ID: <27B95130.5BE4@tct.uucp>
Date: 13 Feb 91 14:46:08 GMT
References: <1991Feb11.192013.6587@mccc.edu> <1991Feb12.211450.28938@athena.mit.edu> <1991Feb13.032238.11640@athena.mit.edu>
Organization: Teltronics/TCT, Sarasota, FL
Lines: 34

According to scs@adam.mit.edu:
>	#ifdef SIGWINCH
>	#ifdef TIOCSWINSZ

Yup.  Just what the doctor ordered.

>(Of course, figuring out what to #include may be tricky, but here
>it really ought to be <signal.h> and <sgtty.h>, respectively.)

Signal, sure.  But you can't include <sgtty.h> on SCO UNIX, even
though it has TIOCSWINSZ.  Try:

     #if defined(POSIX)
     #include <termios.h>
     #else
     #if defined(USG)
     #include <termio.h>
     #else
     #include <sgtty.h>
     #endif
     #endif

(Macro POSIX and/or USG set from the command line.)

>With a bit of creativity, you can use tricks like these for a
>number of other OS-dependent features.

For future tty mode hacking, I'd like to suggest that all OS-dependent
code be implemented, as much as possible, in terms of POSIX functions
like tcgetattr(), tcsetattr(), tcflush(), etc.
-- 
Chip Salzenberg at Teltronics/TCT     <chip@tct.uucp>, <uunet!pdn!tct!chip>
 "I want to mention that my opinions whether real or not are MY opinions."
             -- the inevitable William "Billy" Steinmetz