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 /*LINTLIBRARY*/
41
42 #include <unistd.h>
43 #include <sys/types.h>
44 #include "curses_inc.h"
45
46 int
flushinp(void)47 flushinp(void)
48 {
49 #ifdef DEBUG
50 if (outf)
51 fprintf(outf, "flushinp(), file %x, SP %x\n",
52 cur_term->Filedes, SP);
53 #endif /* DEBUG */
54
55 #ifdef SYSV
56 (void) ioctl(cur_term -> Filedes, TCFLSH, 0);
57 #else /* SYSV */
58 /* for insurance against someone using their own buffer: */
59 (void) ioctl(cur_term -> Filedes, TIOCGETP, &(PROGTTY));
60
61 /*
62 * SETP waits on output and flushes input as side effect.
63 * Really want an ioctl like TCFLSH but Berkeley doesn't have one.
64 */
65 (void) ioctl(cur_term -> Filedes, TIOCSETP, &(PROGTTY));
66 #endif /* SYSV */
67
68 /*
69 * Get rid of any typeahead which was read().
70 * Leave characters which were ungetch()'d.
71 */
72 cur_term->_chars_on_queue = cur_term->_ungotten;
73
74 /*
75 * Have to doupdate() because, if we have stopped output due to
76 * typeahead, now that typeahead is gone, so we had better catch up.
77 */
78 if (_INPUTPENDING)
79 (void) doupdate();
80 return (OK);
81 }
82