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Revision 1.4, Mon Jun 23 11:39:06 2003 UTC (20 years, 9 months ago) by agc
Branch: MAIN
CVS Tags: yamt-pf42-baseX, yamt-pf42-base4, yamt-pf42-base3, yamt-pf42-base2, yamt-pf42-base, yamt-pf42, yamt-pagecache-tag8, yamt-pagecache-base9, yamt-pagecache-base8, yamt-pagecache-base7, yamt-pagecache-base6, yamt-pagecache-base5, yamt-pagecache-base4, yamt-pagecache-base3, yamt-pagecache-base2, yamt-pagecache-base, yamt-pagecache, wrstuden-revivesa-base-3, wrstuden-revivesa-base-2, wrstuden-revivesa-base-1, wrstuden-revivesa-base, wrstuden-revivesa, wrstuden-fixsa-newbase, wrstuden-fixsa-base-1, wrstuden-fixsa-base, wrstuden-fixsa, tls-maxphys-base, tls-maxphys, tls-earlyentropy-base, tls-earlyentropy, riastradh-xf86-video-intel-2-7-1-pre-2-21-15, riastradh-drm2-base3, riastradh-drm2-base2, riastradh-drm2-base1, riastradh-drm2-base, riastradh-drm2, prg-localcount2-base3, prg-localcount2-base2, prg-localcount2-base1, prg-localcount2-base, prg-localcount2, pgoyette-localcount-base, pgoyette-localcount-20170426, pgoyette-localcount-20170320, pgoyette-localcount-20170107, pgoyette-localcount-20161104, pgoyette-localcount-20160806, pgoyette-localcount-20160726, pgoyette-localcount, netbsd-8-base, netbsd-8-2-RELEASE, netbsd-8-1-RELEASE, netbsd-8-1-RC1, netbsd-8-0-RELEASE, netbsd-8-0-RC2, netbsd-8-0-RC1, netbsd-8, netbsd-7-nhusb-base-20170116, netbsd-7-nhusb-base, netbsd-7-nhusb, netbsd-7-base, netbsd-7-2-RELEASE, netbsd-7-1-RELEASE, netbsd-7-1-RC2, netbsd-7-1-RC1, netbsd-7-1-2-RELEASE, netbsd-7-1-1-RELEASE, netbsd-7-1, netbsd-7-0-RELEASE, netbsd-7-0-RC3, netbsd-7-0-RC2, netbsd-7-0-RC1, netbsd-7-0-2-RELEASE, netbsd-7-0-1-RELEASE, netbsd-7-0, netbsd-7, netbsd-6-base, netbsd-6-1-RELEASE, netbsd-6-1-RC4, netbsd-6-1-RC3, netbsd-6-1-RC2, netbsd-6-1-RC1, netbsd-6-1-5-RELEASE, netbsd-6-1-4-RELEASE, netbsd-6-1-3-RELEASE, netbsd-6-1-2-RELEASE, netbsd-6-1-1-RELEASE, netbsd-6-1, netbsd-6-0-RELEASE, netbsd-6-0-RC2, netbsd-6-0-RC1, netbsd-6-0-6-RELEASE, netbsd-6-0-5-RELEASE, netbsd-6-0-4-RELEASE, netbsd-6-0-3-RELEASE, netbsd-6-0-2-RELEASE, netbsd-6-0-1-RELEASE, netbsd-6-0, netbsd-6, netbsd-5-base, netbsd-5-2-RELEASE, netbsd-5-2-RC1, netbsd-5-2-3-RELEASE, netbsd-5-2-2-RELEASE, netbsd-5-2-1-RELEASE, netbsd-5-2, netbsd-5-1-RELEASE, netbsd-5-1-RC4, netbsd-5-1-RC3, netbsd-5-1-RC2, netbsd-5-1-RC1, netbsd-5-1-5-RELEASE, netbsd-5-1-4-RELEASE, netbsd-5-1-3-RELEASE, netbsd-5-1-2-RELEASE, netbsd-5-1-1-RELEASE, netbsd-5-1, netbsd-5-0-RELEASE, netbsd-5-0-RC4, netbsd-5-0-RC3, netbsd-5-0-RC2, netbsd-5-0-RC1, netbsd-5-0-2-RELEASE, netbsd-5-0-1-RELEASE, netbsd-5-0, netbsd-5, netbsd-4-base, netbsd-4-0-RELEASE, netbsd-4-0-RC5, netbsd-4-0-RC4, netbsd-4-0-RC3, netbsd-4-0-RC2, netbsd-4-0-RC1, netbsd-4-0-1-RELEASE, netbsd-4-0, netbsd-4, netbsd-3-base, netbsd-3-1-RELEASE, netbsd-3-1-RC4, netbsd-3-1-RC3, netbsd-3-1-RC2, netbsd-3-1-RC1, netbsd-3-1-1-RELEASE, netbsd-3-1, netbsd-3-0-RELEASE, netbsd-3-0-RC6, netbsd-3-0-RC5, netbsd-3-0-RC4, netbsd-3-0-RC3, netbsd-3-0-RC2, netbsd-3-0-RC1, netbsd-3-0-3-RELEASE, netbsd-3-0-2-RELEASE, netbsd-3-0-1-RELEASE, netbsd-3-0, netbsd-3, netbsd-2-base, netbsd-2-1-RELEASE, netbsd-2-1-RC6, netbsd-2-1-RC5, netbsd-2-1-RC4, netbsd-2-1-RC3, netbsd-2-1-RC2, netbsd-2-1-RC1, netbsd-2-1, netbsd-2-0-base, netbsd-2-0-RELEASE, netbsd-2-0-RC5, netbsd-2-0-RC4, netbsd-2-0-RC3, netbsd-2-0-RC2, netbsd-2-0-RC1, netbsd-2-0-3-RELEASE, netbsd-2-0-2-RELEASE, netbsd-2-0-1-RELEASE, netbsd-2-0, netbsd-2, mjf-devfs2-base, mjf-devfs2, matt-premerge-20091211, matt-nb8-mediatek-base, matt-nb8-mediatek, matt-nb6-plus-nbase, matt-nb6-plus-base, matt-nb6-plus, matt-nb5-pq3-base, matt-nb5-pq3, matt-nb5-mips64-u2-k2-k4-k7-k8-k9, matt-nb5-mips64-u1-k1-k5, matt-nb5-mips64-premerge-20101231, matt-nb5-mips64-premerge-20091211, matt-nb5-mips64-k15, matt-nb5-mips64, matt-nb4-mips64-k7-u2a-k9b, matt-mips64-premerge-20101231, matt-mips64-base2, matt-mips64-base, matt-mips64, matt-armv6-prevmlocking, matt-armv6-nbase, matt-armv6-base, matt-armv6, localcount-20160914, khorben-n900, keiichi-mipv6-base, keiichi-mipv6, jym-xensuspend-nbase, jym-xensuspend-base, jym-xensuspend, hpcarm-cleanup-nbase, hpcarm-cleanup-base, hpcarm-cleanup, historyrename-before, historyrename-after, cube-autoconf-base, cube-autoconf, cherry-xenmp-base, cherry-xenmp, bouyer-socketcan-base1, bouyer-socketcan-base, bouyer-socketcan, bouyer-quota2-nbase, bouyer-quota2-base, bouyer-quota2, agc-symver-base, agc-symver, abandoned-netbsd-4-base, abandoned-netbsd-4
Changes since 1.3: +8 -1 lines 

Add NetBSD RCS Ids.

/*	$NetBSD: tty.c,v 1.4 2003/06/23 11:39:06 agc Exp $	*/

#include <sys/cdefs.h>

#ifndef lint
__RCSID("$NetBSD: tty.c,v 1.4 2003/06/23 11:39:06 agc Exp $");
#endif


#include "sh.h"
#include "ksh_stat.h"
#define EXTERN
#include "tty.h"
#undef EXTERN

int
get_tty(fd, ts)
	int fd;
	TTY_state *ts;
{
	int ret;

# ifdef HAVE_TERMIOS_H
	ret = tcgetattr(fd, ts);
# else /* HAVE_TERIOS_H */
#  ifdef HAVE_TERMIO_H
	ret = ioctl(fd, TCGETA, ts);
#  else /* HAVE_TERMIO_H */
	ret = ioctl(fd, TIOCGETP, &ts->sgttyb);
#   ifdef TIOCGATC
	if (ioctl(fd, TIOCGATC, &ts->lchars) < 0)
		ret = -1;
#   else
	if (ioctl(fd, TIOCGETC, &ts->tchars) < 0)
		ret = -1;
#    ifdef TIOCGLTC
	if (ioctl(fd, TIOCGLTC, &ts->ltchars) < 0)
		ret = -1;
#    endif /* TIOCGLTC */
#   endif /* TIOCGATC */
#  endif /* HAVE_TERMIO_H */
# endif /* HAVE_TERIOS_H */
	return ret;
}

int
set_tty(fd, ts, flags)
	int fd;
	TTY_state *ts;
	int flags;
{
	int ret = 0;

# ifdef HAVE_TERMIOS_H
	ret = tcsetattr(fd, TCSADRAIN, ts);
# else /* HAVE_TERIOS_H */
#  ifdef HAVE_TERMIO_H
#   ifndef TCSETAW				/* e.g. Cray-2 */
		/* first wait for output to drain */
#    ifdef TCSBRK
		if (ioctl(tty_fd, TCSBRK, 1) < 0)
			ret = -1;
#    else /* the following kludge is minimally intrusive, but sometimes fails */
		if (flags & TF_WAIT)
			sleep((unsigned)1);	/* fake it */
#    endif
#   endif /* !TCSETAW */
#   if defined(_BSD_SYSV) || !defined(TCSETAW)
/* _BSD_SYSV must force TIOCSETN instead of TIOCSETP (preserve type-ahead) */
		if (ioctl(tty_fd, TCSETA, ts) < 0)
			ret = -1;
#   else
		if (ioctl(tty_fd, TCSETAW, ts) < 0)
			ret = -1;
#   endif
#  else /* HAVE_TERMIO_H */
#   if defined(__mips) && (defined(_SYSTYPE_BSD43) || defined(__SYSTYPE_BSD43))
	/* Under RISC/os 5.00, bsd43 environment, after a tty driver
	 * generated interrupt (eg, INTR, TSTP), all output to tty is
	 * lost until a SETP is done (there must be a better way of
	 * doing this...).
	 */
	if (flags & TF_MIPSKLUDGE)
		ret = ioctl(fd, TIOCSETP, &ts->sgttyb);
	else
#   endif /* _SYSTYPE_BSD43 */
	    ret = ioctl(fd, TIOCSETN, &ts->sgttyb);
#   ifdef TIOCGATC
	if (ioctl(fd, TIOCSATC, &ts->lchars) < 0)
		ret = -1;
#   else
	if (ioctl(fd, TIOCSETC, &ts->tchars) < 0)
		ret = -1;
#    ifdef TIOCGLTC
	if (ioctl(fd, TIOCSLTC, &ts->ltchars) < 0)
		ret = -1;
#    endif /* TIOCGLTC */
#   endif /* TIOCGATC */
#  endif /* HAVE_TERMIO_H */
# endif /* HAVE_TERIOS_H */
	return ret;
}


/* Initialize tty_fd.  Used for saving/reseting tty modes upon
 * foreground job completion and for setting up tty process group.
 */
void
tty_init(init_ttystate)
	int init_ttystate;
{
	int	do_close = 1;
	int	tfd;
	const char	*devtty = _PATH_TTY;

	if (tty_fd >= 0) {
		close(tty_fd);
		tty_fd = -1;
	}
	tty_devtty = 1;

	/* SCO can't job control on /dev/tty, so don't try... */
#if !defined(__SCO__)
	if ((tfd = open(devtty, O_RDWR, 0)) < 0) {
#ifdef __NeXT
		/* rlogin on NeXT boxes does not set up the controlling tty,
		 * so force it to be done here...
		 */
		{
			extern char *ttyname ARGS((int));
			char *s = ttyname(isatty(2) ? 2 : 0);
			int fd;

			if (s && (fd = open(s, O_RDWR, 0)) >= 0) {
				close(fd);
				tfd = open(devtty, O_RDWR, 0);
			}
		}
#endif /* __NeXT */

/* X11R5 xterm on mips doesn't set controlling tty properly - temporary hack */
# if !defined(__mips) || !(defined(_SYSTYPE_BSD43) || defined(__SYSTYPE_BSD43))
		if (tfd < 0) {
			tty_devtty = 0;
			warningf(FALSE,
				"No controlling tty (open %s: %s)",
				devtty, strerror(errno));
		}
# endif /* __mips  */
	}
#else /* !__SCO__ */
	tfd = -1;
#endif /* __SCO__ */

	if (tfd < 0) {
		do_close = 0;
		if (isatty(0))
			tfd = 0;
		else if (isatty(2))
			tfd = 2;
		else {
			warningf(FALSE, "Can't find tty file descriptor");
			return;
		}
	}
	if ((tty_fd = ksh_dupbase(tfd, FDBASE)) < 0) {
		warningf(FALSE, "j_ttyinit: dup of tty fd failed: %s",
			strerror(errno));
	} else if (fd_clexec(tty_fd) < 0) {
		warningf(FALSE, "j_ttyinit: can't set close-on-exec flag: %s",
			strerror(errno));
		close(tty_fd);
		tty_fd = -1;
	} else if (init_ttystate)
		get_tty(tty_fd, &tty_state);
	if (do_close)
		close(tfd);
}

void
tty_close()
{
	if (tty_fd >= 0) {
		close(tty_fd);
		tty_fd = -1;
	}
}