1 /* $NetBSD: oss4_global.c,v 1.1 2021/06/08 18:43:54 nia Exp $ */
2
3 /*-
4 * Copyright (c) 2020-2021 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Nia Alarie.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31 #include <errno.h>
32 #include "internal.h"
33
34 oss_private int
_oss4_global_ioctl(int fd,unsigned long com,void * argp)35 _oss4_global_ioctl(int fd, unsigned long com, void *argp)
36 {
37 int retval = 0;
38
39 switch (com) {
40 /*
41 * These ioctls were added in OSSv4 with the idea that
42 * applications could apply strings to audio devices to
43 * display what they are using them for (e.g. with song
44 * names) in mixer applications. In practice, the popular
45 * implementations of the API in FreeBSD and Solaris treat
46 * these as a no-op and return EINVAL, and no software in the
47 * wild seems to use them.
48 */
49 case SNDCTL_SETSONG:
50 case SNDCTL_GETSONG:
51 case SNDCTL_SETNAME:
52 case SNDCTL_SETLABEL:
53 case SNDCTL_GETLABEL:
54 errno = EINVAL;
55 retval = -1;
56 break;
57 default:
58 errno = EINVAL;
59 retval = -1;
60 break;
61 }
62 return retval;
63 }
64