1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright (c) 1995, by Sun Microsystems, Inc.
24  * All rights reserved.
25  */
26 
27 /*
28  * flushinp.c
29  *
30  * XCurses Library
31  *
32  * Copyright 1990, 1995 by Mortice Kern Systems Inc.  All rights reserved.
33  *
34  */
35 
36 #ifdef M_RCSID
37 #ifndef lint
38 static char rcsID[] = "$Header: /rd/src/libc/xcurses/rcs/flushinp.c 1.1 1995/06/06 14:13:41 ant Exp $";
39 #endif
40 #endif
41 
42 #include <private.h>
43 
44 /*f
45  * Throw away any typeahead that has been typed by the user
46  * and has not yet been read by the program.
47  */
48 int
flushinp()49 flushinp()
50 {
51 	int fd;
52 
53 #ifdef M_CURSES_TRACE
54 	__m_trace("flushinp(void)");
55 #endif
56 
57 	if (!ISEMPTY())
58 		RESET();
59 
60         if (cur_term->_flags & __TERM_ISATTY_IN)
61                 fd = cur_term->_ifd;
62         else if (cur_term->_flags & __TERM_ISATTY_OUT)
63                 fd = cur_term->_ofd;
64 	else
65 		fd = -1;
66 
67 	if (0 <= fd)
68 		(void) tcflush(fd, TCIFLUSH);
69 
70 	return __m_return_code("flushinp", OK);
71 }
72