usr.sbin/wsmuxctl/wsmuxctl.c

   1 /* $NetBSD: wsmuxctl.c,v 1.9 2004/10/30 15:55:28 dsl 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 static void usage(void);
  45 int main(int, char**);
  46
  47 const char *ctlpath = "/dev/wsmuxctl";
  48
  49 const char *devnames[] = { "?", "wsmouse", "wskbd", "wsmux" };
  50
  51 static void
  52 usage(void)
  53 {
  54
  55         fprintf(stderr, "usage: %s [-a dev] -f wsmux [-l] [-L] [-r dev]\n",
  56                     getprogname());
  57         exit(1);
  58 }
  59
  60 static void
  61 parsedev(const char *dev, struct wsmux_device *mdev)
  62 {
  63         if (sscanf(dev, "wsmouse%d", &mdev->idx) == 1) {
  64                 mdev->type = WSMUX_MOUSE;
  65                 return;
  66         }
  67         if (sscanf(dev, "wskbd%d", &mdev->idx) == 1) {
  68                 mdev->type = WSMUX_KBD;
  69                 return;
  70         }
  71         if (sscanf(dev, "wsmux%d", &mdev->idx) == 1) {
  72                 mdev->type = WSMUX_MUX;
  73                 return;
  74         }
  75         errx(1, "bad device: `%s', use wsmouse, wskdb, or wsmux", dev);
  76 }
  77
  78 static void
  79 listdevs(int fd, int rec, int ind)
  80 {
  81         int i, rfd;
  82         char buf[100];
  83         struct wsmux_device_list devs;
  84
  85         if (ioctl(fd, WSMUXIO_LIST_DEVICES, &devs) < 0)
  86                 err(1, "WSMUXIO_LIST_DEVICES");
  87         for (i = 0; i < devs.ndevices; i++) {
  88                 printf("%*s%s%d\n", ind, "", devnames[devs.devices[i].type],
  89                        devs.devices[i].idx);
  90                 if (rec && devs.devices[i].type == WSMUX_MUX) {
  91                         snprintf(buf, sizeof(buf), "%s%d", ctlpath,
  92                             devs.devices[i].idx);
  93                         rfd = open(buf, O_WRONLY, 0);
  94                         if (rfd < 0)
  95                                 warn("%s", buf);
  96                         listdevs(rfd, rec, ind+2);
  97                         close(rfd);
  98                 }
  99         }
 100 }
 101
 102 int
 103 main(int argc, char **argv)
 104 {
 105         char *wsdev, *dev;
 106         int wsfd, list, c, add, rem, recursive;
 107         struct wsmux_device mdev;
 108         char buf[100];
 109
 110         wsdev = NULL;
 111         dev = NULL;
 112         add = 0;
 113         rem = 0;
 114         list = 0;
 115         recursive = 0;
 116
 117         while ((c = getopt(argc, argv, "a:f:lLr:")) != -1) {
 118                 switch (c) {
 119                 case 'a':
 120                         if (dev)
 121                                 usage();
 122                         dev = optarg;
 123                         add++;
 124                         break;
 125                 case 'r':
 126                         if (dev)
 127                                 usage();
 128                         dev = optarg;
 129                         rem++;
 130                         break;
 131                 case 'f':
 132                         wsdev = optarg;
 133                         break;
 134                 case 'L':
 135                         recursive++;
 136                 case 'l':
 137                         list++;
 138                         break;
 139                 case '?':
 140                 default:
 141                         usage();
 142                         break;
 143                 }
 144         }
 145         argc -= optind;
 146         argv += optind;
 147
 148         if (wsdev == NULL)
 149                 usage();
 150
 151         wsfd = open(wsdev, O_WRONLY, 0);
 152         if (wsfd < 0) {
 153                 if (isdigit((unsigned char)wsdev[0])) {
 154                         snprintf(buf, sizeof(buf), "%s%s", ctlpath, wsdev);
 155                         wsdev = buf;
 156                         wsfd = open(wsdev, O_WRONLY, 0);
 157                 }
 158                 if (wsfd < 0)
 159                         err(2, "%s", wsdev);
 160         }
 161
 162         if (list) {
 163                 if (add || rem)
 164                         usage();
 165                 listdevs(wsfd, recursive, 0);
 166                 exit(0);
 167         }
 168
 169         if (add) {
 170                 parsedev(dev, &mdev);
 171                 if (ioctl(wsfd, WSMUXIO_ADD_DEVICE, &mdev) < 0)
 172                         err(1, "WSMUXIO_ADD_DEVICE");
 173         }
 174
 175         if (rem) {
 176                 parsedev(dev, &mdev);
 177                 if (ioctl(wsfd, WSMUXIO_REMOVE_DEVICE, &mdev) < 0)
 178                         err(1, "WSMUXIO_REMOVE_DEVICE");
 179         }
 180
 181         close(wsfd);
 182         return (0);
 183 }