Example #1
0
int main ( int argc, char *argv[] ) {
  // behaviour
  unsigned char scanonlaunch = 1;
  unsigned int interval_secs = 5;
  int logall = -1; // -1 means normal logging rules; >=0 means log all!
  // misc
  int i;

  /* iterate across args
   */
  for ( i = 1; i < argc; i++ ) {

    if ( argv [ i ][ 0 ] == '-' && argv [ i ][ 1 ] == 'd' ) {
      //printf ( "Going daemon mode. Silent running.\n" );
      g_daemon_mode = 1;
    } else if ( isdigit ( argv [ i ][ 0 ] ) ) {
      interval_secs = atoi ( argv [ i ] );
    } else if ( argv [ i ][ 0 ] == '-' && argv [ i ][ 1 ] == 'n' ) {
      scanonlaunch = 0;
    } else if ( argv [ i ][ 0 ] == '-' && argv [ i ][ 1 ] == 'l' ) {

      if ( isdigit ( argv [ i ][ 2 ] ) ) {
	unsigned char x = atoi ( argv [ i ] + 2 );
	if ( x >= 0 &&
	     x < pndn_none )
	{
	  logall = x;
	}
      } else {
	logall = 0;
      }

    } else {
      printf ( "%s [-d] [-l] [##]\n", argv [ 0 ] );
      printf ( "-d\tDaemon mode; detach from terminal, chdir to /tmp, suppress output. Optional.\n" );
      printf ( "-n\tDo not scan on launch; default is to run a scan for apps when %s is invoked.\n", argv [ 0 ] );
      printf ( "-l#\tLog-it; -l is 0-and-up (or all), and -l2 means 2-and-up (not all); l[0-3] for now. Log goes to /tmp/pndnotifyd.log\n" );
      printf ( "##\tA numeric value is interpreted as number of seconds between checking for filesystem changes. Default %u.\n",
	       interval_secs );
      printf ( "Signal: HUP the process to force reload of configuration and reset the notifier watch paths\n" );
      exit ( 0 );
    }

  } // for

  /* enable logging?
   */
  pnd_log_set_pretext ( "pndnotifyd" );
  pnd_log_set_flush ( 1 );

  if ( logall == -1 ) {
    // standard logging; non-daemon versus daemon

    if ( g_daemon_mode ) {
      // nada
    } else {
      pnd_log_set_filter ( pndn_rem );
      pnd_log_to_stdout();
    }

  } else {
    FILE *f;

    f = fopen ( "/tmp/pndnotifyd.log", "w" );

    if ( f ) {
      pnd_log_set_filter ( logall );
      pnd_log_to_stream ( f );
      pnd_log ( pndn_rem, "logall mode - logging to /tmp/pndnotifyd.log\n" );
    }

    if ( logall == pndn_debug ) {
      pnd_log_set_buried_logging ( 1 ); // log the shit out of it
      pnd_log ( pndn_rem, "logall mode 0 - turned on buried logging\n" );
    }

  } // logall

  pnd_log ( pndn_rem, "%s built %s %s", argv [ 0 ], __DATE__, __TIME__ );

  pnd_log ( pndn_rem, "log level starting as %u", pnd_log_get_filter() );

  pnd_log ( pndn_rem, "Interval between checks is %u seconds\n", interval_secs );

  // check if inotify is awake yet; if not, try waiting for awhile to see if it does
  pnd_log ( pndn_rem, "Starting INOTIFY test; should be instant, but may take awhile...\n" );

  if ( ! pnd_notify_wait_until_ready ( 120 /* seconds */ ) ) {
    pnd_log ( pndn_error, "ERROR: INOTIFY refuses to be useful and quite awhile has passed. Bailing out.\n" );
    return ( -1 );
  }

  pnd_log ( pndn_rem, "INOTIFY seems to be useful, whew.\n" );

  // basic daemon set up
  if ( g_daemon_mode ) {

    // set a CWD somewhere else
#if 0
    chdir ( "/tmp" );
#endif

    // detach from terminal
    if ( ( i = fork() ) < 0 ) {
      pnd_log ( pndn_error, "ERROR: Couldn't fork()\n" );
      exit ( i );
    }
    if ( i ) {
      exit ( 0 ); // exit parent
    }
    setsid();

    // umask
    umask ( 022 ); // emitted files can be rwxr-xr-x

  } // set up daemon

  // wait for a user to be logged in - we should probably get hupped when a user logs in, so we can handle
  // log-out and back in again, with SDs popping in and out between..
  pnd_log ( pndn_rem, "Checking to see if a user is logged in\n" );
  while ( 1 ) {
    if ( pnd_check_login ( g_username, 127 ) ) {
      break;
    }
    pnd_log ( pndn_debug, "  No one logged in yet .. spinning.\n" );
    sleep ( 2 );
  } // spin
  pnd_log ( pndn_rem, "Looks like user '%s' is in, continue.\n", g_username );

  /* parse configs
   */

  consume_configuration();

  /* startup
   */

  pnd_log ( pndn_rem, "PXML overrides searchpath is '%s'\n", overridespath );
  pnd_log ( pndn_rem, "Notify searchpath is '%s'\n", notifypath );

  pnd_log ( pndn_rem, "Desktop apps ---------------------------------\n" );
  pnd_log ( pndn_rem, "Apps searchpath is '%s'\n", desktop_appspath );
  pnd_log ( pndn_rem, ".desktop files emit to '%s'\n", desktop_dotdesktoppath );
  pnd_log ( pndn_rem, ".desktop icon files emit to '%s'\n", desktop_iconpath );

  pnd_log ( pndn_rem, "Menu apps ---------------------------------\n" );
  pnd_log ( pndn_rem, "Apps searchpath is '%s'\n", menu_appspath );
  pnd_log ( pndn_rem, ".desktop files emit to '%s'\n", menu_dotdesktoppath );
  pnd_log ( pndn_rem, ".desktop icon files emit to '%s'\n", menu_iconpath );
  pnd_log ( pndn_rem, ".desktop info files emit to '%s'\n", info_dotdesktoppath ? info_dotdesktoppath : "n/a" );

  /* set up signal handler
   */
  sigset_t ss;
  sigemptyset ( &ss );

  struct sigaction siggy;
  siggy.sa_handler = sighup_handler;
  siggy.sa_mask = ss; /* implicitly blocks the origin signal */
  siggy.sa_flags = 0; /* don't need anything */

  sigaction ( SIGHUP, &siggy, NULL );

  siggy.sa_handler = sigint_handler;
  sigaction ( SIGINT, &siggy, NULL );

  /* set up notifies
   */

  // if we're gong to scan on launch, it'll set things right up and then set up notifications.
  // if no scan on launch, we need to set the notif's up now.
  //if ( ! scanonlaunch ) {
  setup_notifications();
  //}

  dbh = pnd_dbusnotify_init();

  /* daemon main loop
   */
  unsigned char watch_inotify, watch_dbus;
  while ( 1 ) {

    watch_dbus = 0;
    watch_inotify = 0;

    if ( dbh ) {
      watch_dbus = pnd_dbusnotify_rediscover_p ( dbh );
    }

    if ( ! watch_dbus && nh ) {
      watch_inotify = pnd_notify_rediscover_p ( nh );
    }

    // need to rediscover?
    if ( scanonlaunch || watch_inotify || watch_dbus ) {

      // by this point, the watched directories have notified us that something of relevent
      // has occurred; we should be clever, but we're not, so just re-brute force the
      // discovery and spit out .desktop files..
      pnd_log ( pndn_rem, "------------------------------------------------------\n" );

      pnd_log ( pndn_rem, "System changes detected in dbus or watched paths .. performing re-discover!\n" );

      // if this was a forced scan, lets not do that next iteration
      if ( scanonlaunch ) {
	pnd_log ( pndn_rem, "scan-on-first-launch detected an event\n" );
	scanonlaunch = 0;
      }

      if ( watch_inotify ) {
	pnd_log ( pndn_rem, "inotify detected an event\n" );
      }

      if ( watch_dbus ) {
	pnd_log ( pndn_rem, "dbusnotify detected an event\n" );
	pnd_notify_shutdown ( nh );
	nh = 0;
      }

      if ( time ( NULL ) - createtime <= 2 ) {
	pnd_log ( pndn_rem, "Rediscovery request comes to soon after previous discovery; skipping.\n" );
	sleep ( interval_secs );
	continue;
      }

      pnd_log ( pndn_rem, "------------------------------------------------------\n" );

      createtime = time ( NULL ); // all 'new' .destops are created at or after this time; prev are old.

      /* run the discovery
       */

      // do some 'locking'
      pnd_log ( pndn_rem, "creating lockfile %s", PNDLOCKNAME );
      if ( ! pnd_lock ( PNDLOCKNAME ) ) {
	// problem .. well, too bad, we need to do this .. proceed!
      }

      // scan..
      pnd_log ( pndn_rem, "  Scanning desktop paths----------------------------\n" );
      if ( ! perform_discoveries ( desktop_appspath, overridespath, desktop_dotdesktoppath, desktop_iconpath ) ) {
	pnd_log ( pndn_rem, "    No applications found in desktop search path\n" );
      }

      if ( menu_appspath && menu_dotdesktoppath && menu_iconpath ) {
	pnd_log ( pndn_rem, "  Scanning menu paths----------------------------\n" );
	if ( ! perform_discoveries ( menu_appspath, overridespath, menu_dotdesktoppath, menu_iconpath ) ) {
	  pnd_log ( pndn_rem, "    No applications found in menu search path\n" );
	}
      }

      // unlock
      pnd_log ( pndn_rem, "clearing lockfile %s", PNDLOCKNAME );
      pnd_unlock ( PNDLOCKNAME );

      // if we've got a hup script located, lets invoke it
      if ( pndhup ) {
	pnd_log ( pndn_rem, "Invoking hup script '%s'.\n", pndhup );
	pnd_exec_no_wait_1 ( pndhup, NULL );
      }

      // since its entirely likely new directories have been found (ie: SD with a directory structure was inserted)
      // we should re-apply watches to catch all these new directories; ie: user might use on-device browser to
      // drop in new applications, or use the shell to juggle them around, or any number of activities.
      if ( watch_dbus ) {
	setup_notifications();
      }

    } // need to rediscover?

    // lets not eat up all the CPU
    // should use an alarm or select() or something -- I mean really, why aren't I putting interval_secs into
    // the select() call above in pnd_notify_whatsitcalled()? -- but lets not break this right before release shall we
    // NOTE: Oh right, I remember now -- inotify will spam when a card is inserted, and it will not be instantaneoous..
    // the events will dribble in over a second. So this sleep is a lame trick that generally works. I really should
    // do select(), and then when it returns just spin for a couple seconds slurping up events until no more and a thresh-hold
    // time is hit, but this will do for now. I suck.
    sleep ( interval_secs );

  } // while

  /* shutdown
   */
  pnd_notify_shutdown ( nh );
  pnd_dbusnotify_shutdown ( dbh );

  return ( 0 );
}
Example #2
0
int main ( int argc, char *argv[] ) {
  int i;
  int logall = -1; // -1 means normal logging rules; >=0 means log all!

  for ( i = 1; i < argc; i++ ) {

    if ( argv [ i ][ 0 ] == '-' && argv [ i ][ 1 ] == 'd' ) {
      //printf ( "Going daemon mode. Silent running.\n" );
      g_daemon_mode = 1;
    } else if ( argv [ i ][ 0 ] == '-' && argv [ i ][ 1 ] == 'l' ) {

      if ( isdigit ( argv [ i ][ 2 ] ) ) {
	unsigned char x = atoi ( argv [ i ] + 2 );
	if ( x >= 0 &&
	     x < pndn_none )
	{
	  logall = x;
	}
      } else {
	logall = 0;
      }
    } else {
      usage ( argv );
      exit ( 0 );
    }

  } // for

  /* enable logging?
   */
  pnd_log_set_pretext ( "pndevmapperd" );
  pnd_log_set_flush ( 1 );

  if ( logall == -1 ) {
    // standard logging; non-daemon versus daemon

    if ( g_daemon_mode ) {
      // nada
    } else {
      pnd_log_set_filter ( pndn_rem );
      pnd_log_to_stdout();
    }

  } else {
    FILE *f;

    f = fopen ( "/tmp/pndevmapperd.log", "w" );

    if ( f ) {
      pnd_log_set_filter ( logall );
      pnd_log_to_stream ( f );
      pnd_log ( pndn_rem, "logall mode - logging to /tmp/pndevmapperd.log\n" );
    }

    if ( logall == pndn_debug ) {
      pnd_log_set_buried_logging ( 1 ); // log the shit out of it
      pnd_log ( pndn_rem, "logall mode 0 - turned on buried logging\n" );
    }

  } // logall

  pnd_log ( pndn_rem, "%s built %s %s", argv [ 0 ], __DATE__, __TIME__ );

  pnd_log ( pndn_rem, "log level starting as %u", pnd_log_get_filter() );

  // basic daemon set up
  if ( g_daemon_mode ) {

    // set a CWD somewhere else
    chdir ( "/tmp" );

    // detach from terminal
    if ( ( i = fork() ) < 0 ) {
      pnd_log ( pndn_error, "ERROR: Couldn't fork()\n" );
      exit ( i );
    }
    if ( i ) {
      exit ( 0 ); // exit parent
    }
    setsid();

    // umask
    umask ( 022 ); // emitted files can be rwxr-xr-x

  } // set up daemon

  /* hmm, seems to not like working right after boot.. do we depend on another daemon or
   * on giving kernel time to init something, or ... wtf?
   * -- lets give the system some time to wake up
   */
  { // delay

    // this one works for pndnotifyd, which actually needs INOTIFYH..
    //

    // check if inotify is awake yet; if not, try waiting for awhile to see if it does
    pnd_log ( pndn_rem, "Starting INOTIFY test; should be instant, but may take awhile...\n" );

    if ( ! pnd_notify_wait_until_ready ( 120 /* seconds */ ) ) {
      pnd_log ( pndn_error, "ERROR: INOTIFY refuses to be useful and quite awhile has passed. Bailing out.\n" );
      return ( -1 );
    }

    pnd_log ( pndn_rem, "INOTIFY seems to be useful, whew.\n" );

    // pndnotifyd also waits for user to log in .. pretty excessive, especially since
    // what if user wants to close the lid while at the log in screen? for now play the
    // odds as thats pretty unliekly usage scenariom but is clearly not acceptible :/
    //

    // wait for a user to be logged in - we should probably get hupped when a user logs in, so we can handle
    // log-out and back in again, with SDs popping in and out between..
    pnd_log ( pndn_rem, "Checking to see if a user is logged in\n" );
    char tmp_username [ 128 ];
    while ( 1 ) {
      if ( pnd_check_login ( tmp_username, 127 ) ) {
	break;
      }
      pnd_log ( pndn_debug, "  No one logged in yet .. spinning.\n" );
      sleep ( 2 );
    } // spin
    pnd_log ( pndn_rem, "Looks like user '%s' is in, continue.\n", tmp_username );

  } // delay

  /* inhale config or die trying
   */
  char *configpath;

  // attempt to fetch a sensible default searchpath for configs
  configpath = pnd_conf_query_searchpath();

  // attempt to fetch the apps config. since it finds us the runscript
  pnd_conf_handle evmaph;

  evmaph = pnd_conf_fetch_by_id ( pnd_conf_evmap, configpath );

  if ( ! evmaph ) {
    // couldn't locate conf, just bail
    pnd_log ( pndn_error, "ERROR: Couldn't locate conf file\n" );
    exit ( -1 );
  }

  /* iterate across conf, stocking the event map
   */
  void *n = pnd_box_get_head ( evmaph );

  while ( n ) {
    char *k = pnd_box_get_key ( n );
    //printf ( "key %s\n", k );

    if ( strncmp ( k, "keys.", 5 ) == 0 ) {
      k += 5;

      // keys should really push push generic-events onto the table, since they;'re just a special case of them
      // to make things easier to read

      // figure out which keycode we're talking about
      keycode_t *p = keycodes;
      while ( p -> keycode != -1 ) {
	if ( strcasecmp ( p -> keyname, k ) == 0 ) {
	  break;
	}
	p++;
      }

      if ( p -> keycode != -1 ) {
	g_evmap [ g_evmap_max ].key_p = 1;    // its a key, not an event
	g_evmap [ g_evmap_max ].reqs = p;     // note the keycode

	// note the script to activate in response
	if ( strchr ( n, ' ' ) ) {
	  char *foo = strdup ( n );
	  char *t = strchr ( foo, ' ' );
	  *t = '\0';
	  g_evmap [ g_evmap_max ].script = foo;
	  g_evmap [ g_evmap_max ].maxhold = atoi ( t + 1 );
	} else {
	  g_evmap [ g_evmap_max ].script = n;
	  g_evmap [ g_evmap_max ].maxhold = 0;
	}

	pnd_log ( pndn_rem, "Registered key %s [%d] to script %s with maxhold %d\n",
		  p -> keyname, p -> keycode, (char*) n, g_evmap [ g_evmap_max ].maxhold );

	g_evmap_max++;
      } else {
	pnd_log ( pndn_warning, "WARNING! Key '%s' is not handled by pndevmapperd yet! Skipping.", k );
      }

    } else if ( strncmp ( k, "events.", 7 ) == 0 ) {
      k += 7;

      // yes, key events could really be defined in this generic sense, and really we could just let people
      // put the code and so on right in the conf, but trying to keep it easy on people; maybe should
      // add a 'generic' section to conf file and just let folks redefine random events that way
      // Really, it'd be nice if the /dev/input/events could spit out useful text, and just use scripts
      // to respond without a daemon per se; for that matter, pnd-ls and pnd-map pnd-dotdesktopemitter
      // should just exist as scripts rather than daemons, but whose counting?

      // figure out which keycode we're talking about
      generic_event_t *p = generics;
      while ( p -> code != -1 ) {
	if ( strcasecmp ( p -> name, k ) == 0 ) {
	  break;
	}
	p++;
      }

      if ( p -> code != -1 ) {
	g_evmap [ g_evmap_max ].key_p = 0;    // its an event, not a key
	g_evmap [ g_evmap_max ].reqs = p;     // note the keycode
	g_evmap [ g_evmap_max ].script = n;   // note the script to activate in response
	pnd_log ( pndn_rem, "Registered generic event %s [%d] to script %s\n", p -> name, p -> code, (char*) n );
	g_evmap_max++;
      } else {
	pnd_log ( pndn_warning, "WARNING! Generic event '%s' is not handled by pndevmapperd yet! Skipping.", k );
      }

    } else if ( strncmp ( k, "pndevmapperd.", 7 ) == 0 ) {
      // not consumed here, skip silently

    } else if ( strncmp ( k, "battery.", 8 ) == 0 ) {
      // not consumed here, skip silently

    } else if ( strncmp ( k, "battery_charge.", 15 ) == 0 ) {
      // not consumed here, skip silently

    } else {
      // uhhh
      pnd_log ( pndn_warning, "Unknown config key '%s'; skipping.\n", k );
    }

    n = pnd_box_get_next ( n );
  } // while

  if ( pnd_conf_get_as_int ( evmaph, "pndevmapperd.loglevel" ) != PND_CONF_BADNUM ) {
    pnd_log_set_filter ( pnd_conf_get_as_int ( evmaph, "pndevmapperd.loglevel" ) );
    pnd_log ( pndn_rem, "config file causes loglevel to change to %u", pnd_log_get_filter() );
  }

  if ( pnd_conf_get_as_int ( evmaph, "pndevmapperd.minimum_separation" ) != PND_CONF_BADNUM ) {
    g_minimum_separation = pnd_conf_get_as_int ( evmaph, "pndevmapperd.minimum_separation" );
    pnd_log ( pndn_rem, "config file causes minimum_separation to change to %u", g_minimum_separation );
  }

  // battery conf
  if ( pnd_conf_get_as_int ( evmaph, "battery.threshold" ) != PND_CONF_BADNUM ) {
    b_threshold = pnd_conf_get_as_int ( evmaph, "battery.threshold" );
    pnd_log ( pndn_rem, "Battery threshold set to %u", b_threshold );
  }
  if ( pnd_conf_get_as_int ( evmaph, "battery.check_interval" ) != PND_CONF_BADNUM ) {
    b_frequency = pnd_conf_get_as_int ( evmaph, "battery.check_interval" );
    pnd_log ( pndn_rem, "Battery check interval set to %u", b_frequency );
  }
  if ( pnd_conf_get_as_int ( evmaph, "battery.blink_interval" ) != PND_CONF_BADNUM ) {
    b_blinkfreq = pnd_conf_get_as_int ( evmaph, "battery.blink_interval" );
    pnd_log ( pndn_rem, "Battery blink interval set to %u", b_blinkfreq );
  }
  if ( pnd_conf_get_as_int ( evmaph, "battery.blink_duration" ) != PND_CONF_BADNUM ) {
    b_blinkdur = pnd_conf_get_as_int ( evmaph, "battery.blink_duration" );
    pnd_log ( pndn_rem, "Battery blink duration set to %u", b_blinkdur );
  }
  b_active = 0;
  if ( pnd_conf_get_as_int ( evmaph, "battery.shutdown_threshold" ) != PND_CONF_BADNUM ) {
    b_shutdown = pnd_conf_get_as_int ( evmaph, "battery.shutdown_threshold" );
    pnd_log ( pndn_rem, "Battery shutdown threshold set to %u", b_shutdown );
  }
  if ( pnd_conf_get_as_int ( evmaph, "battery.shutdown_delay" ) != PND_CONF_BADNUM ) {
    b_shutdelay = pnd_conf_get_as_int ( evmaph, "battery.shutdown_delay" );
    pnd_log ( pndn_rem, "Battery shutdown delay set to %u", b_shutdelay );
  }
  if ( pnd_conf_get_as_char ( evmaph, "battery.shutdown_script" ) != NULL ) {
    b_shutdown_script = strdup ( pnd_conf_get_as_char ( evmaph, "battery.shutdown_script" ) );
    pnd_log ( pndn_rem, "Battery shutdown script set to %s", b_shutdown_script );
  }
  if ( pnd_conf_get_as_int ( evmaph, "battery_charge.enable" ) != PND_CONF_BADNUM ) {
    bc_enable = pnd_conf_get_as_int ( evmaph, "battery_charge.enable" );
    pnd_log ( pndn_rem, "Battery charge enable set to %u", bc_enable );
  }
  if ( pnd_conf_get_as_int ( evmaph, "battery_charge.stop_capacity" ) != PND_CONF_BADNUM ) {
    bc_stopcap = pnd_conf_get_as_int ( evmaph, "battery_charge.stop_capacity" );
    pnd_log ( pndn_rem, "Battery charge stop capacity set to %u", bc_stopcap );
  }
  if ( pnd_conf_get_as_int ( evmaph, "battery_charge.stop_current" ) != PND_CONF_BADNUM ) {
    bc_stopcur = pnd_conf_get_as_int ( evmaph, "battery_charge.stop_current" );
    pnd_log ( pndn_rem, "Battery charge stop current set to %u", bc_stopcur );
  }
  if ( pnd_conf_get_as_int ( evmaph, "battery_charge.start_capacity" ) != PND_CONF_BADNUM ) {
    bc_startcap = pnd_conf_get_as_int ( evmaph, "battery_charge.start_capacity" );
    pnd_log ( pndn_rem, "Battery charge start capacity set to %u", bc_startcap );
  }
  if ( pnd_conf_get_as_char ( evmaph, "battery_charge.device" ) != NULL ) {
    bc_charge_device = strdup ( pnd_conf_get_as_char ( evmaph, "battery_charge.device" ) );
    pnd_log ( pndn_rem, "Battery charge device set to %s", bc_charge_device );
  }

  /* do we have anything to do?
   */
  if ( ! g_evmap_max ) {
    // uuuh, nothing to do?
    pnd_log ( pndn_warning, "WARNING! No events configured to watch, so just spinning wheels...\n" );
    exit ( -1 );
  } // spin

  /* set up sigchld -- don't want zombies all over; well, we do, but not process zombies
   */
  sigset_t ss;
  sigemptyset ( &ss );

  struct sigaction siggy;
  siggy.sa_handler = sigchld_handler;
  siggy.sa_mask = ss; /* implicitly blocks the origin signal */
  siggy.sa_flags = SA_RESTART; /* don't need anything */
  sigaction ( SIGCHLD, &siggy, NULL );

  /* set up the battery level warning timers
   */
  siggy.sa_handler = sigalrm_handler;
  siggy.sa_mask = ss; /* implicitly blocks the origin signal */
  siggy.sa_flags = SA_RESTART; /* don't need anything */
  sigaction ( SIGALRM, &siggy, NULL );

  if ( set_next_alarm ( b_frequency, 0 ) ) { // check every 'frequency' seconds
    pnd_log ( pndn_rem, "Checking for low battery every %u seconds\n", b_frequency );
  } else {
    pnd_log ( pndn_error, "ERROR: Couldn't set up timer for every %u seconds\n", b_frequency );
  }

  /* actually try to do something useful
   */

  // stolen in part from notaz :)

  // try to locate the appropriate devices
  int id;
  int fds [ 8 ] = { -1, -1, -1, -1, -1, -1, -1, -1 }; // 0 = keypad, 1 = gpio keys
  int imaxfd = 0;

  for ( id = 0; ; id++ ) {
    char fname[64];
    char name[256] = { 0, };
    int fd;

    snprintf ( fname, sizeof ( fname ), "/dev/input/event%i", id );
    fd = open ( fname, O_RDONLY );

    if ( fd == -1 ) {
      break;
    }

    if ( ioctl (fd, EVIOCGNAME(sizeof(name)), name ) < 0 ) {
      name [ 0 ] = '\0';
    }

    pnd_log ( pndn_rem, "%s maps to %s\n", fname, name );

    if ( strcmp ( name, PND_EVDEV_KEYPAD/*"omap_twl4030keypad"*/ ) == 0 ) {
      fds [ 0 ] = fd;
    } else if ( strcmp ( name, "gpio-keys" ) == 0) {
      fds [ 1 ] = fd;
    } else if ( strcmp ( name, "AT Translated Set 2 keyboard" ) == 0) { // for vmware, my dev environment
      fds [ 0 ] = fd;
    } else if ( strcmp ( name, PND_EVDEV_POWER/*"triton2-pwrbutton"*/ ) == 0) {
      fds [ 2 ] = fd;
    } else if ( strcmp ( name, PND_EVDEV_TS/*"ADS784x Touchscreen"*/ ) == 0) {
      fds [ 3 ] = fd;
    } else if ( strcmp ( name, PND_EVDEV_NUB1/*"vsense66"*/ ) == 0) {
      fds [ 4 ] = fd;
    } else if ( strcmp ( name, PND_EVDEV_NUB1/*"vsense67"*/ ) == 0) {
      fds [ 5 ] = fd;
    } else {
      pnd_log ( pndn_rem, "Ignoring unknown device '%s'\n", name );
      //fds [ 6 ] = fd;
      close ( fd );
      fd = -1;
      continue;
    }

    if (imaxfd < fd) imaxfd = fd;

  } // for

  if ( fds [ 0 ] == -1 ) {
    pnd_log ( pndn_warning, "WARNING! Couldn't find keypad device\n" );
  }

  if ( fds [ 1 ] == -1 ) {
    pnd_log ( pndn_warning, "WARNING! couldn't find button device\n" );
  }

  if ( fds [ 0 ] == -1 && fds [ 1 ] == -1 ) {
    pnd_log ( pndn_error, "ERROR! Couldn't find either device!\n" );
    //exit ( -2 );
  }

  /* loop forever, watching for events
   */

  while ( 1 ) {
    struct input_event ev[64];

    unsigned int max_fd = 3; /* imaxfd */
    int fd = -1, rd, ret;
    fd_set fdset;

    // set up fd list
    FD_ZERO ( &fdset );

    imaxfd = 0;
    for (i = 0; i < max_fd /*imaxfd*/; i++) {
      if ( fds [ i ] != -1 ) {
	FD_SET( fds [ i ], &fdset );

	if ( fds [ i ] > imaxfd ) {
	  imaxfd = fds [ i ];
	}

      }
    }

    // figure out if we can block forever, or not
    unsigned char do_block = 1;
    struct timeval tv;
    tv.tv_usec = 0;
    tv.tv_sec = 1;

    for ( i = i; i < g_evmap_max; i++ ) {
      if ( g_evmap [ i ].keydown_time && g_evmap [ i ].maxhold ) {
	do_block = 0;
	break;
      }
    }

    // wait for fd's or timeout
    ret = select ( imaxfd + 1, &fdset, NULL, NULL, do_block ? NULL /* no timeout */ : &tv );

    if ( ret == -1 ) {
      pnd_log ( pndn_error, "ERROR! select(2) failed with: %s\n", strerror ( errno ) );
      continue; // retry!

    } else if ( ret == 0 ) { // select returned with timeout (no fd)

      // timeout occurred; should only happen when 1 or more keys are being held down and
      // they're "maxhold" keys, so we have to see if their timer has passed
      unsigned int now = time ( NULL );

      for ( i = i; i < g_evmap_max; i++ ) {

	if ( g_evmap [ i ].keydown_time &&
	     g_evmap [ i ].maxhold &&
	     now - g_evmap [ i ].keydown_time >= g_evmap [ i ].maxhold )
	{
	  keycode_t *k = (keycode_t*) g_evmap [ i ].reqs;
	  dispatch_key ( k -> keycode, 0 /* key up */ );
	}

      } // for

    } else { // an fd was fiddled with

      for ( i = 0; i < max_fd; i++ ) {
	if ( fds [ i ] != -1 && FD_ISSET ( fds [ i ], &fdset ) ) {
	  fd = fds [ i ];
	} // fd is set?
      } // for

      /* buttons or keypad */
      rd = read ( fd, ev, sizeof(struct input_event) * 64 );
      if ( rd < (int) sizeof(struct input_event) ) {
	pnd_log ( pndn_error, "ERROR! read(2) input_event failed with: %s\n", strerror ( errno ) );
	break;
      }

      for (i = 0; i < rd / sizeof(struct input_event); i++ ) {

	if ( ev[i].type == EV_SYN ) {
	  continue;
	} else if ( ev[i].type == EV_KEY ) {

	  // do we even know about this key at all?
	  keycode_t *p = keycodes;
	  while ( p -> keycode != -1 ) {
	    if ( p -> keycode == ev [ i ].code ) {
	      break;
	    }
	    p++;
	  }

	  // if we do, hand it off to dispatcher to look up if we actually do something with it
	  if ( p -> keycode != -1 ) {
	    if ( logall >= 0 ) {
	      pnd_log ( pndn_debug, "Key Event: key %s [%d] value %d\n", p -> keyname, p -> keycode, ev [ i ].value );
	    }
	    dispatch_key ( p -> keycode, ev [ i ].value );
	  } else {
	    if ( logall >= 0 ) {
	      pnd_log ( pndn_warning, "Unknown Key Event: keycode %d value %d\n",  ev [ i ].code, ev [ i ].value );
	    }
	  }

	} else if ( ev[i].type == EV_SW ) {

	  // do we even know about this event at all?
	  generic_event_t *p = generics;
	  while ( p -> code != -1 ) {
	    if ( p -> code == ev [ i ].code ) {
	      break;
	    }
	    p++;
	  }

	  // if we do, hand it off to dispatcher to look up if we actually do something with it
	  if ( p -> code != -1 ) {
	    if ( logall >= 0 ) {
	      pnd_log ( pndn_debug, "Generic Event: event %s [%d] value %d\n", p -> name, p -> code, ev [ i ].value );
	    }
	    dispatch_event ( p -> code, ev [ i ].value );
	  } else {
	    if ( logall >= 0 ) {
	      pnd_log ( pndn_warning, "Unknown Generic Event: code %d value %d\n",  ev [ i ].code, ev [ i ].value );
	    }
	  }

	} else {
	  pnd_log ( pndn_debug, "DEBUG: Unexpected event type %i received\n", ev[i].type );
	  continue;
	} // type?

      } // for

    } // an fd was touched

  } // while

  for (i = 0; i < 2; i++) {
    if ( i != 2 && fds [ i ] != -1 ) {
      close (fds [ i ] );
    }
  }

  return ( 0 );
} // main