Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!wuarchive!zaphod.mps.ohio-state.edu!pacific.mps.ohio-state.edu!linac!att!ucbvax!UCBVAX.BERKELEY.EDU!"Dan Karron
From: Dan Karron@UCBVAX.BERKELEY.EDU
Newsgroups: comp.sys.sgi
Subject: wsh window size code
Message-ID: <9104170341.AA13470@karron.med.nyu.edu>
Date: 17 Apr 91 03:41:05 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Reply-To: karron@cmcl2.nyu.edu
Organization: The Internet
Lines: 59


Here is the answer to my previous question. Thans to 
Mike Sweet for clueing me to the place to look.

This code is adapted from the tcsh editor code. Thanks Christos !

Now for the hard part, that I don't want to do:

What about cases when you are 1) not connected to a terminal,
2) piped to the printer, or
3) using termio
4) using termcap
4) completely lost and need to make a best guess !

Anyway, here is the simple way:
---------snip---------------------------------------------------
#include "stdio.h"
#include "termio.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>

int GetSize(int *lins, int *cols)
{
struct winsize ws;

if (ioctl(0, TIOCGWINSZ,&ws) < 0)
	return(0);

if (ws.ws_col)
	*cols = ws.ws_col;
if (ws.ws_row)
	*lins = ws.ws_row;
return(*cols);
}

main()
{
int i,j;
int lines,cols;
struct winsize *t;

system("clear");
sleep(4);
GetSize(&lines,&cols);
for(j=0;j<lines-3;j++)
	{
	for(i=0;i<cols;i++)
		putchar('x');
	}
printf("lines=%d,cols=%d. If correct, blank line at bottom\n",lines,cols);
exit(0);
}

------------------snip----------------------------------------------------
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