initial import of NetBSD tree

1 files changed, 186 insertions, 0 deletions

diff --git a/usr.bin/window/wwtty.c b/usr.bin/window/wwtty.c
new file mode 100644
index 00000000000..347862608ef
--- /dev/null
+++ b/usr.bin/window/wwtty.c
@@ -0,0 +1,186 @@
+/*	$NetBSD: wwtty.c,v 1.3 1995/09/28 10:35:58 tls Exp $	*/
+
+/*
+ * Copyright (c) 1983, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Edward Wang at The University of California, Berkeley.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)wwtty.c	8.1 (Berkeley) 6/6/93";
+#else
+static char rcsid[] = "$NetBSD: wwtty.c,v 1.3 1995/09/28 10:35:58 tls Exp $";
+#endif
+#endif /* not lint */
+
+#include "ww.h"
+#include <sys/types.h>
+#include <fcntl.h>
+#if !defined(OLD_TTY) && !defined(TIOCGWINSZ)
+#include <sys/ioctl.h>
+#endif
+
+wwgettty(d, t)
+register struct ww_tty *t;
+{
+#ifdef OLD_TTY
+	if (ioctl(d, TIOCGETP, (char *)&t->ww_sgttyb) < 0)
+		goto bad;
+	if (ioctl(d, TIOCGETC, (char *)&t->ww_tchars) < 0)
+		goto bad;
+	if (ioctl(d, TIOCGLTC, (char *)&t->ww_ltchars) < 0)
+		goto bad;
+	if (ioctl(d, TIOCLGET, (char *)&t->ww_lmode) < 0)
+		goto bad;
+	if (ioctl(d, TIOCGETD, (char *)&t->ww_ldisc) < 0)
+		goto bad;
+#else
+	if (tcgetattr(d, &t->ww_termios) < 0)
+		goto bad;
+#endif
+	if ((t->ww_fflags = fcntl(d, F_GETFL, 0)) < 0)
+		goto bad;
+	return 0;
+bad:
+	wwerrno = WWE_SYS;
+	return -1;
+}
+
+/*
+ * Set the modes of tty 'd' to 't'
+ * 'o' is the current modes.  We set the line discipline only if
+ * it changes, to avoid unnecessary flushing of typeahead.
+ */
+wwsettty(d, t)
+register struct ww_tty *t;
+{
+#ifdef OLD_TTY
+	int i;
+
+	/* XXX, for buggy tty drivers that don't wait for output to drain */
+	while (ioctl(d, TIOCOUTQ, &i) >= 0 && i > 0)
+		usleep(100000);
+	if (ioctl(d, TIOCSETN, (char *)&t->ww_sgttyb) < 0)
+		goto bad;
+	if (ioctl(d, TIOCSETC, (char *)&t->ww_tchars) < 0)
+		goto bad;
+	if (ioctl(d, TIOCSLTC, (char *)&t->ww_ltchars) < 0)
+		goto bad;
+	if (ioctl(d, TIOCLSET, (char *)&t->ww_lmode) < 0)
+		goto bad;
+	if (ioctl(d, TIOCGETD, (char *)&i) < 0)
+		goto bad;
+	if (t->ww_ldisc != i &&
+	    ioctl(d, TIOCSETD, (char *)&t->ww_ldisc) < 0)
+		goto bad;
+#else
+#ifdef sun
+	/* XXX, for buggy tty drivers that don't wait for output to drain */
+	(void) tcdrain(d);
+#endif
+	if (tcsetattr(d, TCSADRAIN, &t->ww_termios) < 0)
+		goto bad;
+#endif
+	if (fcntl(d, F_SETFL, t->ww_fflags) < 0)
+		goto bad;
+	return 0;
+bad:
+	wwerrno = WWE_SYS;
+	return -1;
+}
+
+/*
+ * The ttysize and stop-start routines must also work
+ * on the control side of pseudoterminals.
+ */
+
+wwgetttysize(d, r, c)
+	int *r, *c;
+{
+	struct winsize winsize;
+
+	if (ioctl(d, TIOCGWINSZ, (char *)&winsize) < 0) {
+		wwerrno = WWE_SYS;
+		return -1;
+	}
+	if (winsize.ws_row != 0)
+		*r = winsize.ws_row;
+	if (winsize.ws_col != 0)
+		*c = winsize.ws_col;
+	return 0;
+}
+
+wwsetttysize(d, r, c)
+{
+	struct winsize winsize;
+
+	winsize.ws_row = r;
+	winsize.ws_col = c;
+	winsize.ws_xpixel = winsize.ws_ypixel = 0;
+	if (ioctl(d, TIOCSWINSZ, (char *)&winsize) < 0) {
+		wwerrno = WWE_SYS;
+		return -1;
+	}
+	return 0;
+}
+
+wwstoptty(d)
+{
+#if !defined(OLD_TTY) && defined(TCOOFF)
+	/* not guaranteed to work on the pty side */
+	if (tcflow(d, TCOOFF) < 0)
+#else
+	if (ioctl(d, TIOCSTOP, (char *)0) < 0)
+#endif
+	{
+		wwerrno = WWE_SYS;
+		return -1;
+	}
+	return 0;
+}
+
+wwstarttty(d)
+{
+#if !defined(OLD_TTY) && defined(TCOON)
+	/* not guaranteed to work on the pty side */
+	if (tcflow(d, TCOON) < 0)
+#else
+	if (ioctl(d, TIOCSTART, (char *)0) < 0)
+#endif
+	{
+		wwerrno = WWE_SYS;
+		return -1;
+	}
+	return 0;
+}