1/* $NetBSD: wsmuxctl.c,v 1.10 2008/04/28 20:24:17 martin Exp $ */
2
3/*
4 * Copyright (c) 2001 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * Author: Lennart Augustsson <augustss@carlstedt.se>
8 *         Carlstedt Research & Technology
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
32#include <stdio.h>
33#include <stdlib.h>
34#include <fcntl.h>
35#include <unistd.h>
36#include <ctype.h>
37#include <sys/types.h>
38#include <sys/ioctl.h>
39#include <err.h>
40#include <errno.h>
41
42#include <dev/wscons/wsconsio.h>
43
44__dead static void usage(void);
45
46static const char *ctlpath = "/dev/wsmuxctl";
47
48static const char *devnames[] = { "?", "wsmouse", "wskbd", "wsmux" };
49
50static void
51usage(void)
52{
53
54	fprintf(stderr, "usage: %s [-a dev] -f wsmux [-l] [-L] [-r dev]\n",
55		    getprogname());
56	exit(1);
57}
58
59static void
60parsedev(const char *dev, struct wsmux_device *mdev)
61{
62	if (sscanf(dev, "wsmouse%d", &mdev->idx) == 1) {
63		mdev->type = WSMUX_MOUSE;
64		return;
65	}
66	if (sscanf(dev, "wskbd%d", &mdev->idx) == 1) {
67		mdev->type = WSMUX_KBD;
68		return;
69	}
70	if (sscanf(dev, "wsmux%d", &mdev->idx) == 1) {
71		mdev->type = WSMUX_MUX;
72		return;
73	}
74	errx(1, "bad device: `%s', use wsmouse, wskdb, or wsmux", dev);
75}
76
77static void
78listdevs(int fd, int rec, int ind)
79{
80	int i, rfd;
81	char buf[100];
82	struct wsmux_device_list devs;
83
84	if (ioctl(fd, WSMUXIO_LIST_DEVICES, &devs) < 0)
85		err(1, "WSMUXIO_LIST_DEVICES");
86	for (i = 0; i < devs.ndevices; i++) {
87		printf("%*s%s%d\n", ind, "", devnames[devs.devices[i].type],
88		       devs.devices[i].idx);
89		if (rec && devs.devices[i].type == WSMUX_MUX) {
90			snprintf(buf, sizeof(buf), "%s%d", ctlpath,
91			    devs.devices[i].idx);
92			rfd = open(buf, O_WRONLY, 0);
93			if (rfd < 0)
94				warn("%s", buf);
95			listdevs(rfd, rec, ind+2);
96			close(rfd);
97		}
98	}
99}
100
101int
102main(int argc, char **argv)
103{
104	char *wsdev, *dev;
105	int wsfd, list, c, add, rem, recursive;
106	struct wsmux_device mdev;
107	char buf[100];
108
109	wsdev = NULL;
110	dev = NULL;
111	add = 0;
112	rem = 0;
113	list = 0;
114	recursive = 0;
115
116	while ((c = getopt(argc, argv, "a:f:lLr:")) != -1) {
117		switch (c) {
118		case 'a':
119			if (dev)
120				usage();
121			dev = optarg;
122			add++;
123			break;
124		case 'r':
125			if (dev)
126				usage();
127			dev = optarg;
128			rem++;
129			break;
130		case 'f':
131			wsdev = optarg;
132			break;
133		case 'L':
134			recursive++;
135		case 'l':
136			list++;
137			break;
138		case '?':
139		default:
140			usage();
141			break;
142		}
143	}
144	argc -= optind;
145	argv += optind;
146
147	if (wsdev == NULL)
148		usage();
149
150	wsfd = open(wsdev, O_WRONLY, 0);
151	if (wsfd < 0) {
152		if (isdigit((unsigned char)wsdev[0])) {
153			snprintf(buf, sizeof(buf), "%s%s", ctlpath, wsdev);
154			wsdev = buf;
155			wsfd = open(wsdev, O_WRONLY, 0);
156		}
157		if (wsfd < 0)
158			err(2, "%s", wsdev);
159	}
160
161	if (list) {
162		if (add || rem)
163			usage();
164		listdevs(wsfd, recursive, 0);
165		exit(0);
166	}
167
168	if (add) {
169		parsedev(dev, &mdev);
170		if (ioctl(wsfd, WSMUXIO_ADD_DEVICE, &mdev) < 0)
171			err(1, "WSMUXIO_ADD_DEVICE");
172	}
173
174	if (rem) {
175		parsedev(dev, &mdev);
176		if (ioctl(wsfd, WSMUXIO_REMOVE_DEVICE, &mdev) < 0)
177			err(1, "WSMUXIO_REMOVE_DEVICE");
178	}
179
180	close(wsfd);
181	return (0);
182}
183