1 files changed, 127 insertions, 0 deletions
diff --git a/usr/src/lib/libcurses/screen/ttimeout.c b/usr/src/lib/libcurses/screen/ttimeout.c
new file mode 100644
index 0000000000..d56bd487d6
--- /dev/null
+++ b/usr/src/lib/libcurses/screen/ttimeout.c
@@ -0,0 +1,127 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License").  You may not use this file except in compliance
+ * with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 1997 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+/*	Copyright (c) 1988 AT&T	*/
+/*	  All Rights Reserved	*/
+
+/*
+ * University Copyright- Copyright (c) 1982, 1986, 1988
+ * The Regents of the University of California
+ * All Rights Reserved
+ *
+ * University Acknowledgment- Portions of this document are derived from
+ * software developed by the University of California, Berkeley, and its
+ * contributors.
+ */
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+
+/*LINTLIBRARY*/
+
+#include	<sys/types.h>
+#include	"curses_inc.h"
+#include	<fcntl.h>
+
+/*
+ * Set the current time-out period for getting input.
+ *
+ * delay:	< 0 for infinite delay (blocking read)
+ * 		= 0 for no delay read
+ * 		> 0 to specify a period in millisecs to wait
+ *		for input, then return '\0' if none comes
+ */
+
+static void	_setblock(int), _settimeout(int);
+
+int
+ttimeout(int delay)
+{
+	if (cur_term->_inputfd < 0)
+		return (ERR);
+
+	if (delay < 0)
+		delay = -1;
+
+	if (cur_term->_delay == delay)
+		goto good;
+
+#ifdef	SYSV
+	if (delay > 0) {
+		if (cur_term->_delay < 0)
+			_setblock(-delay);
+		_settimeout(delay);
+	} else
+		if ((delay + cur_term->_delay) == -1)
+			_setblock(delay);
+		else {
+			if (delay < 0)
+				_setblock(delay);
+			_settimeout(delay);
+		}
+#else	/* SYSV */
+	cbreak();
+#endif	/* SYSV */
+
+	cur_term->_delay = delay;
+good:
+	return (OK);
+}
+
+#ifdef	SYSV
+/* set the terminal to nodelay (==0) or block(<0) */
+static	void
+_setblock(int block)
+{
+	int	flags = fcntl(cur_term->_inputfd, F_GETFL, 0);
+
+	if (block < 0)
+		flags &= ~O_NDELAY;
+	else
+		flags |= O_NDELAY;
+
+	(void) fcntl(cur_term->_inputfd, F_SETFL, flags);
+}
+
+/*
+ * set the terminal to timeout in t milliseconds,
+ * rounded up to the nearest 10th of a second.
+ */
+static	void
+_settimeout(int num)
+{
+	PROGTTYS.c_lflag &= ~ICANON;
+	if (num > 0) {
+		PROGTTYS.c_cc[VMIN] = 0;
+		PROGTTYS.c_cc[VTIME] = (num > 25500) ? 255 : (num + 99) / 100;
+		cur_term->_fl_rawmode = 3;
+	} else {
+		PROGTTYS.c_cc[VMIN] = 1;
+		PROGTTYS.c_cc[VTIME] = 0;
+		cur_term->_fl_rawmode = 1;
+	}
+	(void) reset_prog_mode();
+}
+#endif	/* SYSV */