drvctl.c revision 1.2 
1/* $NetBSD: drvctl.c,v 1.2 2004/08/18 13:24:55 wiz Exp $ */
2
3/*
4 * Copyright (c) 2004
5 * 	Matthias Drochner.  All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions, and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29#include <stdio.h>
30#include <stdlib.h>
31#include <unistd.h>
32#include <err.h>
33#include <fcntl.h>
34#include <string.h>
35#include <sys/ioctl.h>
36#include <sys/drvctlio.h>
37
38#define OPTS "dra:"
39
40static void usage(void);
41
42static void
43usage()
44{
45
46	fprintf(stderr, "Usage: %s -r [-a attribute] busdevice [locator ...]\n"
47	    "       %s -d device\n", getprogname(), getprogname());
48	exit(1);
49}
50
51int
52main(int argc, char **argv)
53{
54	int c, mode;
55	char *attr = 0;
56	extern char *optarg;
57	extern int optind;
58	int fd, res;
59	struct devdetachargs daa;
60	struct devrescanargs raa;
61	int *locs, i;
62
63	while ((c = getopt(argc, argv, OPTS)) != -1) {
64		switch (c) {
65		case 'd':
66		case 'r':
67			mode = c;
68			break;
69		case 'a':
70			attr = optarg;
71			break;
72		case '?':
73		default:
74			usage();
75		}
76	}
77
78	argc -= optind;
79	argv += optind;
80
81	if (argc < 1)
82		usage();
83
84	fd = open(DRVCTLDEV, O_RDWR, 0);
85	if (fd < 0)
86		err(2, "open %s", DRVCTLDEV);
87
88	if (mode == 'd') {
89		strlcpy(daa.devname, argv[0], sizeof(daa.devname));
90
91		res = ioctl(fd, DRVDETACHDEV, &daa);
92		if (res)
93			err(3, "DRVDETACHDEV");
94	} else if (mode == 'r') {
95		memset(&raa, 0, sizeof(raa));
96		strlcpy(raa.busname, argv[0], sizeof(raa.busname));
97		if (attr)
98			strlcpy(raa.ifattr, attr, sizeof(raa.ifattr));
99		if (argc > 1) {
100			locs = malloc((argc - 1) * sizeof(int));
101			if (!locs)
102				err(5, "malloc int[%d]", argc - 1);
103			for (i = 0; i < argc - 1; i++)
104				locs[i] = atoi(argv[i + 1]);
105			raa.numlocators = argc - 1;
106			raa.locators = locs;
107		}
108
109		res = ioctl(fd, DRVRESCANBUS, &raa);
110		if (res)
111			err(3, "DRVRESCANBUS");
112	} else
113		errx(4, "unknown command");
114
115	return (0);
116}
117