Example #1
0
/* actions associated with putting the terminal in open mode */
void
tostart(void)
{
	putpad(VS);
	putpad(KS);
	if (!value(MESG)) {
		if (ttynbuf[0] == 0) {
			register char *tn;
			if ((tn=ttyname(2)) == NULL &&
			    (tn=ttyname(1)) == NULL &&
			    (tn=ttyname(0)) == NULL)
				ttynbuf[0] = 1;
			else
				safecp(ttynbuf, tn, sizeof ttynbuf,
						"%s too long", tn);
		}
		if (ttynbuf[0] != 1) {
			struct stat sbuf;
			stat(ttynbuf, &sbuf);
			ttymesg = sbuf.st_mode & 0777;
			chmod(ttynbuf,
#ifdef UCBV7
	/*
	 * This applies to the UCB V7 Pdp-11 system with the
	 * -u write option only.
	 */
					0611	/* 11 = urgent only allowed */
#else
					0600
#endif
						);
		}
	}
}
Example #2
0
File: ex_tty.c Project: atsb/ex
void
setterm(char *type)
{
	register int unknown;
	char ltcbuf[TCBUFSIZE];

	if (type[0] == 0)
		type = "xx";
	unknown = 0;
	putpad(TE);
	if (tgetent(ltcbuf, type) != 1) {
		unknown++;
		CP(ltcbuf, "xx|dumb:");
	}
	gettmode(); /* must call gettmode() before setsize(). GR */
	setsize();
	aoftspace = tspace;
	zap();
	/*
	 * Initialize keypad arrow keys.
	 */
	addmac1(KU, "k", "up", arrows, 1);
	addmac1(KD, "j", "down", arrows, 1);
	addmac1(KL, "h", "left", arrows, 1);
	addmac1(KR, "l", "right", arrows, 1);
	addmac1(KH, "H", "home", arrows, 1);

	/*
	 * Handle funny termcap capabilities
	 */
	if (xCS && SC && RC) {
		if (AL==NULL) AL="";
		if (DL==NULL) DL="";
	}
	if (AL_PARM && AL==NULL) AL="";
	if (DL_PARM && DL==NULL) DL="";
	if (IC && IM==NULL) IM="";
	if (IC && EI==NULL) EI="";
	if (!GT) BT=NULL;	/* If we can't tab, we can't backtab either */

#ifdef	TIOCLGET
#define	HAS_JOB_CONTROL
#endif
#ifdef	_SC_JOB_CONTROL
#define	HAS_JOB_CONTROL
#endif
#ifdef	HAS_JOB_CONTROL
	/*
	 * Now map users susp char to ^Z, being careful that the susp
	 * overrides any arrow key, but only for hackers (=new tty driver).
	 */
	{
		static char sc[2];
		int i /* , fnd */;

		if (sysconf(_SC_JOB_CONTROL) != -1)
		{
			/*
			 * If a system supports job control but no job
			 * control shell is used, only one method of
			 * detection remains: Our session id equals our
			 * process group id. Any job control shell would
			 * have created at least one new process group.
			 * But as the VSUSP key may be active, we have
			 * to override arrow keys either.
			 */
#ifndef	_CRAY	/* getsid() is a bad syscall on UNICOS */
			if (getsid(0) != getpgid(0))
#endif	/* !_CRAY */
				ldisc = 2;	/* value of NTTYDISC */
			sc[0] = tty.c_cc[VSUSP];
			sc[1] = 0;
			if (tty.c_cc[VSUSP] == CTRL('z')) {
				for (i=0; i<=4; i++)
					if (arrows[i].cap &&
					    arrows[i].cap[0] == CTRL('z'))
						addmac(sc, NULL, NULL, arrows);
			} else if (sc[0]
#ifdef	_PC_VDISABLE
					&& sc[0] != fpathconf(1, _PC_VDISABLE)
#endif
					)
				addmac(sc, "\32", "susp", arrows);
		}
	}
#endif	/* HAS_JOB_CONTROL */

	if (CM != 0) {
		if (tgoto(CM, 2, 2)[0] == 'O')	/* OOPS */
			CA = 0, CM = 0;
		else
			CA = 1, costCM = cost(tgoto(CM, 8, 10));
	} else {
		CA = 0, CM = 0;
	}
	costSR = cost(SR);
	costAL = cost(AL);
	costDP = cost(tgoto(DOWN_PARM, 10, 10));
	costLP = cost(tgoto(LEFT_PARM, 10, 10));
	costRP = cost(tgoto(RIGHT_PARM, 10, 10));
	PC = xPC ? xPC[0] : 0;
	aoftspace = tspace;
	safecp(ttylongname, gettlongname(ltcbuf, type), sizeof ttylongname,
			"Terminal name too long");
	/* proper strings to change tty type */
	termreset();
	gettmode();
	value(REDRAW) = AL && DL;
	value(OPTIMIZE) = !CA && !GT;
	if (ospeed == B1200 && !value(REDRAW))
		value(SLOWOPEN) = 1;	/* see also gettmode above */
	if (unknown)
		serror(catgets(catd, 1, 191,
				"%s: Unknown terminal type"), type);
}