void
vl_save_tty(void)
{
ioctl(0, TCGETA, (char *) &otermio); /* save old settings */
intrc = otermio.c_cc[VINTR];
killc = otermio.c_cc[VKILL];
startc = tocntrl('Q');
stopc = tocntrl('S');
backspc = otermio.c_cc[VERASE];
wkillc = tocntrl('W');
#if SIGTSTP
#ifdef V_SUSP
suspc = otermio.c_cc[V_SUSP];
#else
suspc = -1;
#endif
#else /* no SIGTSTP */
suspc = tocntrl('Z');
#endif
saved_tty = TRUE;
}
void
vl_save_tty(void)
{
int s;
s = tcgetattr(0, &otermios);
if (s < 0) {
perror("vl_save_tty tcgetattr");
ExitProgram(BADEXIT);
}
suspc = otermios.c_cc[VSUSP];
intrc = otermios.c_cc[VINTR];
killc = otermios.c_cc[VKILL];
startc = otermios.c_cc[VSTART];
stopc = otermios.c_cc[VSTOP];
backspc = otermios.c_cc[VERASE];
#ifdef VWERASE /* Sun has it. any others? */
wkillc = otermios.c_cc[VWERASE];
#else
wkillc = tocntrl('W');
#endif
saved_tty = TRUE;
}
void
ttopen()
{
int s;
s = tcgetattr(0, &otermios);
if (s < 0) {
perror("ttopen tcgetattr");
ExitProgram(BAD(1));
}
/* the "|| USG" below is to support SVR4 -- let me know if
it conflicts on other systems */
#if ODT || ISC || USG
setvbuf(stdout, tobuf, _IOLBF, TBUFSIZ);
#else
setbuffer(stdout, tobuf, TBUFSIZ);
#endif
suspc = otermios.c_cc[VSUSP];
intrc = otermios.c_cc[VINTR];
killc = otermios.c_cc[VKILL];
startc = otermios.c_cc[VSTART];
stopc = otermios.c_cc[VSTOP];
backspc = otermios.c_cc[VERASE];
#ifdef VWERASE /* Sun has it. any others? */
wkillc = otermios.c_cc[VWERASE];
#else
wkillc = tocntrl('W');
#endif
/* this could probably be done more POSIX'ish? */
(void)signal(SIGTSTP,SIG_DFL); /* set signals so that we can */
(void)signal(SIGCONT,rtfrmshell); /* suspend & restart */
(void)signal(SIGTTOU,SIG_IGN); /* ignore output prevention */
#if USE_FCNTL
kbd_flags = fcntl( 0, F_GETFL, 0 );
kbd_is_polled = FALSE;
#endif
#if ! X11
ntermios = otermios;
/* setup new settings, preserve flow control, and allow BREAK */
ntermios.c_iflag = BRKINT|(otermios.c_iflag & (IXON|IXANY|IXOFF));
ntermios.c_oflag = 0;
ntermios.c_lflag = ISIG;
ntermios.c_cc[VMIN] = 1;
ntermios.c_cc[VTIME] = 0;
#ifdef VSWTCH
ntermios.c_cc[VSWTCH] = -1;
#endif
ntermios.c_cc[VSUSP] = -1;
ntermios.c_cc[VSTART] = -1;
ntermios.c_cc[VSTOP] = -1;
#endif
ttmiscinit();
ttunclean();
}