1 /* $NetBSD: wsmuxctl.c,v 1.14 2019/03/29 07:49:38 mlelstv 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
46 static const char *ctlpath = "/dev/wsmuxctl";
47
48 static void
usage(void)49 usage(void)
50 {
51
52 fprintf(stderr, "usage: %s [-a dev] -f wsmux [-l] [-L] [-r dev]\n",
53 getprogname());
54 exit(1);
55 }
56
57 static void
parsedev(const char * dev,struct wsmux_device * mdev)58 parsedev(const char *dev, struct wsmux_device *mdev)
59 {
60 if (sscanf(dev, "wsmouse%d", &mdev->idx) == 1) {
61 mdev->type = WSMUX_MOUSE;
62 return;
63 }
64 if (sscanf(dev, "wskbd%d", &mdev->idx) == 1) {
65 mdev->type = WSMUX_KBD;
66 return;
67 }
68 if (sscanf(dev, "wsmux%d", &mdev->idx) == 1) {
69 mdev->type = WSMUX_MUX;
70 return;
71 }
72 if (sscanf(dev, "wsbell%d", &mdev->idx) == 1) {
73 mdev->type = WSMUX_BELL;
74 return;
75 }
76 errx(1, "bad device: `%s', use wsmouse, wskdb, wsmux or wsbell", dev);
77 }
78
79 static void
listdevs(int fd,int rec,int ind)80 listdevs(int fd, int rec, int ind)
81 {
82 int i, rfd;
83 char buf[100];
84 struct wsmux_device_list devs;
85 const char *name;
86
87 if (ioctl(fd, WSMUXIO_LIST_DEVICES, &devs) < 0)
88 err(1, "WSMUXIO_LIST_DEVICES");
89 for (i = 0; i < devs.ndevices; i++) {
90 switch (devs.devices[i].type) {
91 case WSMUX_MOUSE: name = "wsmouse"; break;
92 case WSMUX_KBD: name = "wskbd"; break;
93 case WSMUX_MUX: name = "wsmux"; break;
94 case WSMUX_BELL: name = "wsbell"; break;
95 default: name = "?"; break;
96 }
97 printf("%*s%s%d\n", ind, "", name, devs.devices[i].idx);
98 if (rec && devs.devices[i].type == WSMUX_MUX) {
99 snprintf(buf, sizeof(buf), "%s%d", ctlpath,
100 devs.devices[i].idx);
101 rfd = open(buf, O_WRONLY, 0);
102 if (rfd < 0)
103 warn("%s", buf);
104 listdevs(rfd, rec, ind+2);
105 close(rfd);
106 }
107 }
108 }
109
110 int
main(int argc,char ** argv)111 main(int argc, char **argv)
112 {
113 char *wsdev, *dev;
114 int wsfd, list, c, add, rem, recursive;
115 struct wsmux_device mdev;
116 char buf[100];
117
118 wsdev = NULL;
119 dev = NULL;
120 add = 0;
121 rem = 0;
122 list = 0;
123 recursive = 0;
124
125 while ((c = getopt(argc, argv, "a:f:lLr:")) != -1) {
126 switch (c) {
127 case 'a':
128 if (dev)
129 usage();
130 dev = optarg;
131 add++;
132 break;
133 case 'r':
134 if (dev)
135 usage();
136 dev = optarg;
137 rem++;
138 break;
139 case 'f':
140 wsdev = optarg;
141 break;
142 case 'L':
143 recursive++;
144 /* FALLTHROUGH */
145 case 'l':
146 list++;
147 break;
148 case '?':
149 default:
150 usage();
151 break;
152 }
153 }
154 argc -= optind;
155 argv += optind;
156
157 if (wsdev == NULL)
158 usage();
159
160 wsfd = open(wsdev, O_WRONLY, 0);
161 if (wsfd < 0) {
162 if (isdigit((unsigned char)wsdev[0])) {
163 snprintf(buf, sizeof(buf), "%s%s", ctlpath, wsdev);
164 wsdev = buf;
165 wsfd = open(wsdev, O_WRONLY, 0);
166 }
167 if (wsfd < 0)
168 err(2, "%s", wsdev);
169 }
170
171 if (list) {
172 if (add || rem)
173 usage();
174 listdevs(wsfd, recursive, 0);
175 exit(0);
176 }
177
178 if (add) {
179 parsedev(dev, &mdev);
180 if (ioctl(wsfd, WSMUXIO_ADD_DEVICE, &mdev) < 0)
181 err(1, "WSMUXIO_ADD_DEVICE");
182 }
183
184 if (rem) {
185 parsedev(dev, &mdev);
186 if (ioctl(wsfd, WSMUXIO_REMOVE_DEVICE, &mdev) < 0)
187 err(1, "WSMUXIO_REMOVE_DEVICE");
188 }
189
190 close(wsfd);
191 return (0);
192 }
193