xref: /onnv-gate/usr/src/lib/libxcurses2/src/libc/xcurses/flushinp.c (revision 0:68f95e015346)
1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate  * CDDL HEADER START
3*0Sstevel@tonic-gate  *
4*0Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*0Sstevel@tonic-gate  * with the License.
8*0Sstevel@tonic-gate  *
9*0Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate  * and limitations under the License.
13*0Sstevel@tonic-gate  *
14*0Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate  *
20*0Sstevel@tonic-gate  * CDDL HEADER END
21*0Sstevel@tonic-gate  */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate  * Copyright (c) 1995-1998 by Sun Microsystems, Inc.
24*0Sstevel@tonic-gate  * All rights reserved.
25*0Sstevel@tonic-gate  */
26*0Sstevel@tonic-gate 
27*0Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
28*0Sstevel@tonic-gate 
29*0Sstevel@tonic-gate /* LINTLIBRARY */
30*0Sstevel@tonic-gate 
31*0Sstevel@tonic-gate /*
32*0Sstevel@tonic-gate  * flushinp.c
33*0Sstevel@tonic-gate  *
34*0Sstevel@tonic-gate  * XCurses Library
35*0Sstevel@tonic-gate  *
36*0Sstevel@tonic-gate  * Copyright 1990, 1995 by Mortice Kern Systems Inc.  All rights reserved.
37*0Sstevel@tonic-gate  *
38*0Sstevel@tonic-gate  */
39*0Sstevel@tonic-gate 
40*0Sstevel@tonic-gate #ifdef M_RCSID
41*0Sstevel@tonic-gate #ifndef lint
42*0Sstevel@tonic-gate static char rcsID[] =
43*0Sstevel@tonic-gate "$Header: /team/ps/sun_xcurses/archive/local_changes/xcurses/src/lib/"
44*0Sstevel@tonic-gate "libxcurses/src/libc/xcurses/rcs/flushinp.c 1.2 1998/04/24 17:17:33 "
45*0Sstevel@tonic-gate "cbates Exp $";
46*0Sstevel@tonic-gate #endif
47*0Sstevel@tonic-gate #endif
48*0Sstevel@tonic-gate 
49*0Sstevel@tonic-gate #include <private.h>
50*0Sstevel@tonic-gate 
51*0Sstevel@tonic-gate /*
52*0Sstevel@tonic-gate  * Throw away any typeahead that has been typed by the user
53*0Sstevel@tonic-gate  * and has not yet been read by the program.
54*0Sstevel@tonic-gate  */
55*0Sstevel@tonic-gate int
flushinp(void)56*0Sstevel@tonic-gate flushinp(void)
57*0Sstevel@tonic-gate {
58*0Sstevel@tonic-gate 	int fd;
59*0Sstevel@tonic-gate 
60*0Sstevel@tonic-gate 	if (!iqIsEmpty())
61*0Sstevel@tonic-gate 		iqReset();
62*0Sstevel@tonic-gate 
63*0Sstevel@tonic-gate 	if (cur_term->_flags & __TERM_ISATTY_IN)
64*0Sstevel@tonic-gate 		fd = cur_term->_ifd;
65*0Sstevel@tonic-gate 	else if (cur_term->_flags & __TERM_ISATTY_OUT)
66*0Sstevel@tonic-gate 		fd = cur_term->_ofd;
67*0Sstevel@tonic-gate 	else
68*0Sstevel@tonic-gate 		fd = -1;
69*0Sstevel@tonic-gate 
70*0Sstevel@tonic-gate 	if (0 <= fd)
71*0Sstevel@tonic-gate 		(void) tcflush(fd, TCIFLUSH);
72*0Sstevel@tonic-gate 
73*0Sstevel@tonic-gate 	return (OK);
74*0Sstevel@tonic-gate }
75