procd.c

   1 /*
   2  * Copyright (C) 2013 Felix Fietkau <nbd@openwrt.org>
   3  * Copyright (C) 2013 John Crispin <blogic@openwrt.org>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU Lesser General Public License version 2.1
   7  * as published by the Free Software Foundation
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  */
  14
  15 #include <sys/wait.h>
  16 #include <sys/types.h>
  17 #include <sys/stat.h>
  18
  19 #include <unistd.h>
  20 #include <getopt.h>
  21 #include <libgen.h>
  22
  23 #include "procd.h"
  24 #include "watchdog.h"
  25 #include "plug/hotplug.h"
  26
  27 unsigned int debug;
  28
  29 static int usage(const char *prog)
  30 {
  31         ERROR("Usage: %s [options]\n"
  32                 "Options:\n"
  33                 "\t-s <path>\tPath to ubus socket\n"
  34                 "\t-h <path>\trun as hotplug daemon\n"
  35                 "\t-d <level>\tEnable debug messages\n"
  36                 "\n", prog);
  37         return 1;
  38 }
  39
  40 int main(int argc, char **argv)
  41 {
  42         int ch;
  43         char *dbglvl = getenv("DBGLVL");
  44
  45         if (dbglvl) {
  46                 debug = atoi(dbglvl);
  47                 unsetenv("DBGLVL");
  48         }
  49
  50         while ((ch = getopt(argc, argv, "d:s:h:")) != -1) {
  51                 switch (ch) {
  52                 case 'h':
  53                         return hotplug_run(optarg);
  54                 case 's':
  55                         ubus_socket = optarg;
  56                         break;
  57                 case 'd':
  58                         debug = atoi(optarg);
  59                         break;
  60                 default:
  61                         return usage(argv[0]);
  62                 }
  63         }
  64         uloop_init();
  65         procd_signal();
  66         trigger_init();
  67         if (getpid() != 1)
  68                 procd_connect_ubus();
  69         else
  70                 procd_state_next();
  71         uloop_run();
  72
  73         return 0;
  74 }