usr.sbin/bthcid/bthcid.c

   1 /*      $NetBSD: bthcid.c,v 1.4 2008/07/21 13:36:57 lukem 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 1.4 2008/07/21 13:36:57 lukem 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
  52 const   char    *socket_name = BTHCID_SOCKET_NAME;
  53         int      detach = 1;
  54
  55 static struct event     sighup_ev;
  56 static struct event     sigint_ev;
  57 static struct event     sigterm_ev;
  58
  59 static void     process_signal(int, short, void *);
  60 static void     usage(void);
  61
  62 int
  63 main(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
 154 static void
 155 process_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 */
 169 static void
 170 usage(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 }