4 * Copyright (c) 2004 Maksim Yevmenkin <m_evmenkin@yahoo.com>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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.
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
28 * $Id: bthidd.c,v 1.7 2004/11/17 21:59:42 max Exp $
33 #include <sys/queue.h>
35 #include <bluetooth.h>
46 #include "bthid_config.h"
48 static int write_pid_file (char const *file);
49 static int remove_pid_file (char const *file);
50 static int elapsed (int tval);
51 static void sighandler (int s);
52 static void sighup (int s);
53 static void usage (void);
59 static int done = 0; /* are we done? */
60 static int reload = 0; /* reload config file */
63 main(int argc, char *argv[])
65 struct bthid_server srv;
67 char const *pid_file = BTHIDD_PIDFILE, *ep = NULL;
68 int opt, detach, tval;
70 memset(&srv, 0, sizeof(srv));
71 memcpy(&srv.bdaddr, NG_HCI_BDADDR_ANY, sizeof(srv.bdaddr));
76 while ((opt = getopt(argc, argv, "a:c:dH:hp:s:t:")) != -1) {
78 case 'a': /* BDADDR */
79 if (!bt_aton(optarg, &srv.bdaddr)) {
80 struct hostent *he = NULL;
82 if ((he = bt_gethostbyname(optarg)) == NULL)
83 errx(1, "%s: %s", optarg, hstrerror(h_errno));
85 memcpy(&srv.bdaddr, he->h_addr, sizeof(srv.bdaddr));
89 case 'c': /* config file */
93 case 'd': /* do not detach */
97 case 'H': /* hids file */
101 case 'p': /* pid file */
105 case 's': /* switch script */
109 case 't': /* rescan interval */
110 tval = strtol(optarg, (char **) &ep, 10);
111 if (*ep != '\0' || tval <= 0)
115 case 'u': /* wired keyboard index */
116 srv.windex = strtol(optarg, (char **) &ep, 10);
117 if (*ep != '\0' || srv.windex < 0)
128 openlog(BTHIDD_IDENT, LOG_PID|LOG_PERROR|LOG_NDELAY, LOG_USER);
130 /* Become daemon if required */
131 if (detach && daemon(0, 0) < 0) {
132 syslog(LOG_CRIT, "Could not become daemon. %s (%d)",
133 strerror(errno), errno);
137 /* Install signal handler */
138 memset(&sa, 0, sizeof(sa));
139 sa.sa_handler = sighandler;
141 if (sigaction(SIGTERM, &sa, NULL) < 0 ||
142 sigaction(SIGINT, &sa, NULL) < 0) {
143 syslog(LOG_CRIT, "Could not install signal handlers. %s (%d)",
144 strerror(errno), errno);
148 sa.sa_handler = sighup;
149 if (sigaction(SIGHUP, &sa, NULL) < 0) {
150 syslog(LOG_CRIT, "Could not install signal handlers. %s (%d)",
151 strerror(errno), errno);
155 sa.sa_handler = SIG_IGN;
156 if (sigaction(SIGPIPE, &sa, NULL) < 0) {
157 syslog(LOG_CRIT, "Could not install signal handlers. %s (%d)",
158 strerror(errno), errno);
162 sa.sa_handler = SIG_IGN;
163 sa.sa_flags = SA_NOCLDSTOP|SA_NOCLDWAIT;
164 if (sigaction(SIGCHLD, &sa, NULL) < 0) {
165 syslog(LOG_CRIT, "Could not install signal handlers. %s (%d)",
166 strerror(errno), errno);
170 if (read_config_file() < 0 || read_hids_file() < 0 ||
171 server_init(&srv) < 0 || write_pid_file(pid_file) < 0)
174 for (done = 0; !done; ) {
178 if (server_do(&srv) < 0)
182 if (write_hids_file() < 0 ||
183 read_config_file() < 0 ||
184 read_hids_file() < 0)
191 server_shutdown(&srv);
192 remove_pid_file(pid_file);
204 write_pid_file(char const *file)
208 assert(file != NULL);
210 if ((pid = fopen(file, "w")) == NULL) {
211 syslog(LOG_ERR, "Could not open file %s. %s (%d)",
212 file, strerror(errno), errno);
216 fprintf(pid, "%d", getpid());
227 remove_pid_file(char const *file)
229 assert(file != NULL);
231 if (unlink(file) < 0) {
232 syslog(LOG_ERR, "Could not unlink file %s. %s (%d)",
233 file, strerror(errno), errno);
241 * Returns true if desired time interval has elapsed
247 static struct timeval last = { 0, };
250 gettimeofday(&now, NULL);
252 if (now.tv_sec - last.tv_sec >= tval) {
267 syslog(LOG_NOTICE, "Got signal %d, total number of signals %d",
274 syslog(LOG_NOTICE, "Got SIGHUP: reload config");
279 * Display usage and exit
286 "Usage: %s [options]\n" \
287 "Where options are:\n" \
288 " -a address specify address to listen on (default ANY)\n" \
289 " -c file specify config file name\n" \
290 " -d run in foreground\n" \
291 " -H file specify known HIDs file name\n" \
292 " -h display this message\n" \
293 " -p file specify PID file name\n" \
294 " -s script specify keyboard switching script\n" \
295 " -t tval specify client rescan interval (sec)\n" \
296 " -u unit specify wired keyboard unit\n" \