xref: /netbsd/usr.sbin/wsmuxctl/wsmuxctl.c (revision bf9ec67e)
1 /* $NetBSD: wsmuxctl.c,v 1.4 2001/10/24 18:31:16 augustss 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  * 3. All advertising materials mentioning features or use of this software
19  *    must display the following acknowledgement:
20  *        This product includes software developed by the NetBSD
21  *        Foundation, Inc. and its contributors.
22  * 4. Neither the name of The NetBSD Foundation nor the names of its
23  *    contributors may be used to endorse or promote products derived
24  *    from this software without specific prior written permission.
25  *
26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36  * POSSIBILITY OF SUCH DAMAGE.
37  */
38 
39 #include <stdio.h>
40 #include <stdlib.h>
41 #include <fcntl.h>
42 #include <unistd.h>
43 #include <ctype.h>
44 #include <sys/types.h>
45 #include <sys/ioctl.h>
46 #include <err.h>
47 #include <errno.h>
48 
49 #include <dev/wscons/wsconsio.h>
50 
51 static void usage(void);
52 int main(int, char**);
53 
54 const char *ctlpath = "/dev/wsmuxctl";
55 
56 const char *devnames[] = { "?", "wsmouse", "wskbd", "wsmux" };
57 
58 static void
59 usage(void)
60 {
61 
62 	fprintf(stderr, "Usage: %s [-a dev] -f wsmux [-l] [-L] [-r dev]\n",
63 		    getprogname());
64 	exit(1);
65 }
66 
67 static void
68 parsedev(const char *dev, struct wsmux_device *mdev)
69 {
70 	if (sscanf(dev, "wsmouse%d", &mdev->idx) == 1) {
71 		mdev->type = WSMUX_MOUSE;
72 		return;
73 	}
74 	if (sscanf(dev, "wskbd%d", &mdev->idx) == 1) {
75 		mdev->type = WSMUX_KBD;
76 		return;
77 	}
78 	if (sscanf(dev, "wsmux%d", &mdev->idx) == 1) {
79 		mdev->type = WSMUX_MUX;
80 		return;
81 	}
82 	errx(1, "bad device: `%s', use wsmouse, wskdb, or wsmux\n", dev);
83 }
84 
85 static void
86 listdevs(int fd, int rec, int ind)
87 {
88 	int i, rfd;
89 	char buf[100];
90 	struct wsmux_device_list devs;
91 
92 	if (ioctl(fd, WSMUXIO_LIST_DEVICES, &devs) < 0)
93 		err(1, "WSMUXIO_LIST_DEVICES");
94 	for (i = 0; i < devs.ndevices; i++) {
95 		printf("%*s%s%d\n", ind, "", devnames[devs.devices[i].type],
96 		       devs.devices[i].idx);
97 		if (rec && devs.devices[i].type == WSMUX_MUX) {
98 			sprintf(buf, "%s%d", ctlpath, devs.devices[i].idx);
99 			rfd = open(buf, O_WRONLY, 0);
100 			if (rfd < 0)
101 				warn("%s", buf);
102 			listdevs(rfd, rec, ind+2);
103 			close(rfd);
104 		}
105 	}
106 }
107 
108 int
109 main(int argc, char **argv)
110 {
111 	char *wsdev, *dev;
112 	int wsfd, list, c, add, rem, recursive;
113 	struct wsmux_device mdev;
114 	char buf[100];
115 
116 	wsdev = NULL;
117 	dev = NULL;
118 	add = 0;
119 	rem = 0;
120 	list = 0;
121 	recursive = 0;
122 
123 	while ((c = getopt(argc, argv, "a:f:lLr:")) != -1) {
124 		switch (c) {
125 		case 'a':
126 			if (dev)
127 				usage();
128 			dev = optarg;
129 			add++;
130 			break;
131 		case 'r':
132 			if (dev)
133 				usage();
134 			dev = optarg;
135 			rem++;
136 			break;
137 		case 'f':
138 			wsdev = optarg;
139 			break;
140 		case 'L':
141 			recursive++;
142 		case 'l':
143 			list++;
144 			break;
145 		case '?':
146 		default:
147 			usage();
148 			break;
149 		}
150 	}
151 	argc -= optind;
152 	argv += optind;
153 
154 	if (wsdev == NULL)
155 		usage();
156 
157 	wsfd = open(wsdev, O_WRONLY, 0);
158 	if (wsfd < 0) {
159 		if (isdigit(wsdev[0])) {
160 			sprintf(buf, "%s%s", ctlpath, wsdev);
161 			wsdev = buf;
162 			wsfd = open(wsdev, O_WRONLY, 0);
163 			if (wsfd < 0)
164 				err(2, "%s", wsdev);
165 		}
166 	}
167 
168 	if (list) {
169 		if (add || rem)
170 			usage();
171 		listdevs(wsfd, recursive, 0);
172 		exit(0);
173 	}
174 
175 	if (add) {
176 		parsedev(dev, &mdev);
177 		if (ioctl(wsfd, WSMUXIO_ADD_DEVICE, &mdev) < 0)
178 			err(1, "WSMUXIO_ADD_DEVICE");
179 	}
180 
181 	if (rem) {
182 		parsedev(dev, &mdev);
183 		if (ioctl(wsfd, WSMUXIO_REMOVE_DEVICE, &mdev) < 0)
184 			err(1, "WSMUXIO_REMOVE_DEVICE");
185 	}
186 
187 	close(wsfd);
188 	return (0);
189 }
190