1/*	$NetBSD: bthcid.c,v 1.5 2009/10/05 12:34:26 plunky Exp $	*/
2
3/*-
4 * Copyright (c) 2006 Itronix Inc.
5 * 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 * 3. The name of Itronix Inc. may not be used to endorse
16 *    or promote products derived from this software without specific
17 *    prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY ITRONIX INC. ``AS IS'' AND
20 * 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 ITRONIX INC. BE LIABLE FOR ANY
23 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
26 * 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 <sys/cdefs.h>
33__COPYRIGHT("@(#) Copyright (c) 2006 Itronix, Inc.\
34  Copyright (c) 2001-2002 Maksim Yevmenkin m_evmenkin@yahoo.com.\
35  All rights reserved.");
36__RCSID("$NetBSD: bthcid.c,v 1.5 2009/10/05 12:34:26 plunky Exp $");
37
38#include <sys/param.h>
39#include <sys/stat.h>
40#include <bluetooth.h>
41#include <err.h>
42#include <errno.h>
43#include <event.h>
44#include <stdlib.h>
45#include <string.h>
46#include <syslog.h>
47#include <unistd.h>
48#include <util.h>
49
50#include "bthcid.h"
51
52static const char	*socket_name = BTHCID_SOCKET_NAME;
53static int		 detach = 1;
54
55static struct event	sighup_ev;
56static struct event	sigint_ev;
57static struct event	sigterm_ev;
58
59__dead static void	process_signal(int, short, void *);
60__dead static void	usage(void);
61
62int
63main(int argc, char *argv[])
64{
65	const char	*device;
66	int		ch;
67	mode_t		mode;
68
69	device = NULL;
70	mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP;
71
72	while ((ch = getopt(argc, argv, "d:fm:ns:h")) != -1) {
73		switch (ch) {
74		case 'd':
75			device = optarg;
76			break;
77
78		case 'f':
79			detach = 0;
80			break;
81
82		case 'm':
83			mode = atoi(optarg);
84			break;
85
86		case 'n':
87			socket_name = NULL;
88			break;
89
90		case 's':
91			socket_name = optarg;
92			break;
93
94		case 'h':
95		default:
96			usage();
97			/* NOT REACHED */
98		}
99	}
100
101	if (getuid() != 0)
102		errx(EXIT_FAILURE,
103		    "** ERROR: You should run %s as privileged user!",
104		    getprogname());
105
106	if (detach)
107		if (daemon(0, 0) < 0)
108			err(EXIT_FAILURE, "Could not daemon()ize");
109
110	openlog(getprogname(), LOG_NDELAY | LOG_PERROR | LOG_PID, LOG_DAEMON);
111
112	event_init();
113
114	signal_set(&sigterm_ev, SIGTERM, process_signal, NULL);
115	if (signal_add(&sigterm_ev, NULL) < 0) {
116		syslog(LOG_ERR, "signal_add(sigterm_ev)");
117		exit(EXIT_FAILURE);
118	}
119
120	signal_set(&sigint_ev, SIGINT, process_signal, NULL);
121	if (signal_add(&sigint_ev, NULL) < 0) {
122		syslog(LOG_ERR, "signal_add(sigint_ev)");
123		exit(EXIT_FAILURE);
124	}
125
126	signal_set(&sighup_ev, SIGHUP, process_signal, NULL);
127	if (signal_add(&sighup_ev, NULL) < 0) {
128		syslog(LOG_ERR, "signal_add(sighup_ev)");
129		exit(EXIT_FAILURE);
130	}
131
132	if (init_hci(device) < 0) {
133		syslog(LOG_ERR, "init_hci(%s)", device);
134		exit(EXIT_FAILURE);
135	}
136
137	if (init_control(socket_name, mode) < 0) {
138		syslog(LOG_ERR, "init_control(%s)", socket_name);
139		exit(EXIT_FAILURE);
140	}
141
142	if (detach && pidfile(NULL) < 0) {
143		syslog(LOG_ERR, "Could not create PID file: %m");
144		exit(EXIT_FAILURE);
145	}
146
147	event_dispatch();
148
149	/* NOTREACHED */
150	/* gcc fodder */
151	exit(EXIT_FAILURE);
152}
153
154static void
155process_signal(int s, short e, void *arg)
156{
157
158	syslog(LOG_DEBUG, "Exiting on signal %d", s);
159
160	if (socket_name)
161		unlink(socket_name);
162
163	closelog();
164	exit(EXIT_FAILURE);
165
166}
167
168/* Display usage and exit */
169static void
170usage(void)
171{
172
173	fprintf(stderr,
174	    "Usage: %s [-fhn] [-c config] [-d device] [-m mode] [-s path]\n"
175	    "Where:\n"
176	    "\t-c config   specify config filename\n"
177	    "\t-d device   specify device address\n"
178	    "\t-f          run in foreground\n"
179	    "\t-m mode     specify socket permissions\n"
180	    "\t-n          do not listen for clients\n"
181	    "\t-s path     specify client socket pathname\n"
182	    "\t-h          display this message\n",
183	    getprogname());
184
185	exit(EXIT_FAILURE);
186}
187