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BSD 4.3

/*
 * Copyright (c) 1980 Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 */

#ifndef lint
static char sccsid[] = "@(#)open.c	5.1 (Berkeley) 5/7/85";
#endif not lint

#include <sgtty.h>
#include "hp2648.h"

int shakehands;
int currentx;
int currenty;
int buffcount;
int fildes;
float lowx;
float lowy;
float scalex;
float scaley;
struct sgttyb sarg;

openpl()
{
	if ( isatty(fileno( stdout )) ) {
		shakehands = TRUE;
		fildes = open(TERMINAL, 0);
		gtty(fildes, &sarg);
		sarg.sg_flags = sarg.sg_flags | RAW;
		stty(fildes, &sarg);
		sarg.sg_flags = sarg.sg_flags & ~RAW;
	}
	else {
		shakehands = FALSE;
	}
	buffcount = 0;
	currentx = 0;
	currenty = 0;
	buffready(8);
	putchar(ESC);
	putchar(GRAPHIC);
	putchar(DISPLAY);
	putchar('c');
	putchar(ESC);
	putchar(GRAPHIC);
	putchar(PLOT);
	putchar(BINARY);
	space(0,0,720,360);
}

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