usr/src/lib/libcurses/initscr.c

# include	"curses.ext"
# include	<signal.h>

extern char	*getenv();

/*
 *	This routine initializes the current and standard screen.
 *
 * @(#)initscr.c	1.5 (Berkeley) %G%
 */
WINDOW *
initscr() {

	reg char	*sp;
	int		tstp();
	int 		nfd;

# ifdef DEBUG
	fprintf(outf, "INITSCR()\n");
# endif
	if (My_term)
		setterm(Def_term);
	else {
		if (isatty(2))
			_tty_ch = 2;
		else {
			nfd = getdtablesize();
			for (_tty_ch = 0; _tty_ch < nfd; _tty_ch++)
				if (isatty(_tty_ch))
					break;
		}
		gettmode();
		if ((sp = getenv("TERM")) == NULL)
			sp = Def_term;
		setterm(sp);
# ifdef DEBUG
		fprintf(outf, "INITSCR: term = %s\n", sp);
# endif
	}
	_puts(TI);
	_puts(VS);
# ifdef SIGTSTP
	signal(SIGTSTP, tstp);
# endif
	if (curscr != NULL) {
# ifdef DEBUG
		fprintf(outf, "INITSCR: curscr = 0%o\n", curscr);
# endif
		delwin(curscr);
	}
# ifdef DEBUG
	fprintf(outf, "LINES = %d, COLS = %d\n", LINES, COLS);
# endif
	if ((curscr = newwin(LINES, COLS, 0, 0)) == ERR)
		return ERR;
	clearok(curscr, TRUE);
	curscr->_flags &= ~_FULLLINE;
	if (stdscr != NULL) {
# ifdef DEBUG
		fprintf(outf, "INITSCR: stdscr = 0%o\n", stdscr);
# endif
		delwin(stdscr);
	}
	stdscr = newwin(LINES, COLS, 0, 0);
	return stdscr;
}
Commit	Line	Data
	1	# include "curses.ext"
	2	# include <signal.h>
	3
	4	extern char *getenv();
	5
	6	/*
	7	* This routine initializes the current and standard screen.
	8	*
	9	* @(#)initscr.c 1.5 (Berkeley) %G%
	10	*/
	11	WINDOW *
	12	initscr() {
	13
	14	reg char *sp;
	15	int tstp();
	16	int nfd;
	17
	18	# ifdef DEBUG
	19	fprintf(outf, "INITSCR()\n");
	20	# endif
	21	if (My_term)
	22	setterm(Def_term);
	23	else {
	24	if (isatty(2))
	25	_tty_ch = 2;
	26	else {
	27	nfd = getdtablesize();
	28	for (_tty_ch = 0; _tty_ch < nfd; _tty_ch++)
	29	if (isatty(_tty_ch))
	30	break;
	31	}
	32	gettmode();
	33	if ((sp = getenv("TERM")) == NULL)
	34	sp = Def_term;
	35	setterm(sp);
	36	# ifdef DEBUG
	37	fprintf(outf, "INITSCR: term = %s\n", sp);
	38	# endif
	39	}
	40	_puts(TI);
	41	_puts(VS);
	42	# ifdef SIGTSTP
	43	signal(SIGTSTP, tstp);
	44	# endif
	45	if (curscr != NULL) {
	46	# ifdef DEBUG
	47	fprintf(outf, "INITSCR: curscr = 0%o\n", curscr);
	48	# endif
	49	delwin(curscr);
	50	}
	51	# ifdef DEBUG
	52	fprintf(outf, "LINES = %d, COLS = %d\n", LINES, COLS);
	53	# endif
	54	if ((curscr = newwin(LINES, COLS, 0, 0)) == ERR)
	55	return ERR;
	56	clearok(curscr, TRUE);
	57	curscr->_flags &= ~_FULLLINE;
	58	if (stdscr != NULL) {
	59	# ifdef DEBUG
	60	fprintf(outf, "INITSCR: stdscr = 0%o\n", stdscr);
	61	# endif
	62	delwin(stdscr);
	63	}
	64	stdscr = newwin(LINES, COLS, 0, 0);
	65	return stdscr;
	66	}