1/* $OpenBSD: lib_beep.c,v 1.5 2023/10/17 09:52:08 nicm Exp $ */
2
3/****************************************************************************
4 * Copyright 2020 Thomas E. Dickey                                          *
5 * Copyright 1998-2013,2014 Free Software Foundation, Inc.                  *
6 *                                                                          *
7 * Permission is hereby granted, free of charge, to any person obtaining a  *
8 * copy of this software and associated documentation files (the            *
9 * "Software"), to deal in the Software without restriction, including      *
10 * without limitation the rights to use, copy, modify, merge, publish,      *
11 * distribute, distribute with modifications, sublicense, and/or sell       *
12 * copies of the Software, and to permit persons to whom the Software is    *
13 * furnished to do so, subject to the following conditions:                 *
14 *                                                                          *
15 * The above copyright notice and this permission notice shall be included  *
16 * in all copies or substantial portions of the Software.                   *
17 *                                                                          *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
21 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
22 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
23 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
24 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
25 *                                                                          *
26 * Except as contained in this notice, the name(s) of the above copyright   *
27 * holders shall not be used in advertising or otherwise to promote the     *
28 * sale, use or other dealings in this Software without prior written       *
29 * authorization.                                                           *
30 ****************************************************************************/
31
32/****************************************************************************
33 *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
34 *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
35 *     and: Thomas E. Dickey                        1996-on                 *
36 *     and: Juergen Pfeifer                         2009                    *
37 ****************************************************************************/
38
39/*
40 *	beep.c
41 *
42 *	The routine beep().
43 *
44 */
45
46#include <curses.priv.h>
47
48#ifndef CUR
49#define CUR SP_TERMTYPE
50#endif
51
52MODULE_ID("$Id: lib_beep.c,v 1.5 2023/10/17 09:52:08 nicm Exp $")
53
54/*
55 *	beep()
56 *
57 *	Sound the current terminal's audible bell if it has one.   If not,
58 *	flash the screen if possible.
59 *
60 */
61
62NCURSES_EXPORT(int)
63NCURSES_SP_NAME(beep) (NCURSES_SP_DCL0)
64{
65    int res = ERR;
66
67    T((T_CALLED("beep(%p)"), (void *) SP_PARM));
68
69#ifdef USE_TERM_DRIVER
70    if (SP_PARM != 0)
71	res = CallDriver_1(SP_PARM, td_doBeepOrFlash, TRUE);
72#else
73    /* FIXME: should make sure that we are not in altchar mode */
74    if (cur_term == 0) {
75	res = ERR;
76    } else if (bell) {
77	res = NCURSES_PUTP2_FLUSH("bell", bell);
78    } else if (flash_screen) {
79	res = NCURSES_PUTP2_FLUSH("flash_screen", flash_screen);
80	_nc_flush();
81    }
82#endif
83
84    returnCode(res);
85}
86
87#if NCURSES_SP_FUNCS
88NCURSES_EXPORT(int)
89beep(void)
90{
91    return NCURSES_SP_NAME(beep) (CURRENT_SCREEN);
92}
93#endif
94