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 1997 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 /* Copyright (c) 1988 AT&T */
28 /* All Rights Reserved */
29
30 /*
31 * University Copyright- Copyright (c) 1982, 1986, 1988
32 * The Regents of the University of California
33 * All Rights Reserved
34 *
35 * University Acknowledgment- Portions of this document are derived from
36 * software developed by the University of California, Berkeley, and its
37 * contributors.
38 */
39
40 #pragma ident "%Z%%M% %I% %E% SMI"
41
42 /*LINTLIBRARY*/
43
44 #include <unistd.h>
45 #include <sys/types.h>
46 #include "curses_inc.h"
47
48 int
flushinp(void)49 flushinp(void)
50 {
51 #ifdef DEBUG
52 if (outf)
53 fprintf(outf, "flushinp(), file %x, SP %x\n",
54 cur_term->Filedes, SP);
55 #endif /* DEBUG */
56
57 #ifdef SYSV
58 (void) ioctl(cur_term -> Filedes, TCFLSH, 0);
59 #else /* SYSV */
60 /* for insurance against someone using their own buffer: */
61 (void) ioctl(cur_term -> Filedes, TIOCGETP, &(PROGTTY));
62
63 /*
64 * SETP waits on output and flushes input as side effect.
65 * Really want an ioctl like TCFLSH but Berkeley doesn't have one.
66 */
67 (void) ioctl(cur_term -> Filedes, TIOCSETP, &(PROGTTY));
68 #endif /* SYSV */
69
70 /*
71 * Get rid of any typeahead which was read().
72 * Leave characters which were ungetch()'d.
73 */
74 cur_term->_chars_on_queue = cur_term->_ungotten;
75
76 /*
77 * Have to doupdate() because, if we have stopped output due to
78 * typeahead, now that typeahead is gone, so we had better catch up.
79 */
80 if (_INPUTPENDING)
81 (void) doupdate();
82 return (OK);
83 }
84