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wsmuxctl.c revision 1.10 
      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 (at) 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 }
    184