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/*
This file is part of GNUnet.
(C)
GNUnet is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
by the Free Software Foundation; either version 3, or (at your
option) any later version.
GNUnet is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNUnet; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
/**
* @file sensor/gnunet-sensor.c
* @brief sensor tool
* @author Omar Tarabai
*/
#include "platform.h"
#include "gnunet_util_lib.h"
#include "gnunet_sensor_service.h"
static int ret;
/**
* option '-a'
*/
static int get_all;
/**
* option '-g'
*/
static char *get_sensor;
/**
* option '-f'
*/
static char *force_anomaly;
/*
* Handle to sensor service
*/
static struct GNUNET_SENSOR_Handle *sensor_handle;
/**
* Run on shutdown
*
* @param cls unused
* @param tc scheduler context
*/
static void
shutdown_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
if (NULL != sensor_handle)
{
GNUNET_SENSOR_disconnect (sensor_handle);
sensor_handle = NULL;
}
}
/**
* Callback for getting sensor info from service
*
* @param cls not used
* @param sensor brief information about sensor (NULL means end of transmission)
* @param err_msg contains error string if any
*/
void
print_sensor_info (void *cls, const struct SensorInfoShort *sensor,
const char *err_msg)
{
if (NULL != err_msg)
{
printf ("Error: %s\n", err_msg);
GNUNET_SCHEDULER_shutdown ();
return;
}
if (NULL == sensor) /* no more sensors from service */
{
GNUNET_SCHEDULER_shutdown ();
return;
}
printf ("Name: %s\nVersion: %d.%d\n", sensor->name, sensor->version_major,
sensor->version_minor);
if (NULL != sensor->description)
printf ("Description: %s\n", sensor->description);
printf ("\n");
}
/**
* Continuation called after a force anomaly request is sent.
*
* @param cls Closure (unused)
* @param emsg Error message, NULL of no error
*/
void
force_anomaly_cont (void *cls, const char *emsg)
{
if (NULL != emsg)
printf ("Error: %s\n", emsg);
GNUNET_SCHEDULER_shutdown ();
}
/**
* Main function that will be run by the scheduler.
*
* @param cls closure
* @param args remaining command-line arguments
* @param cfgfile name of the configuration file used (for saving, can be NULL!)
* @param cfg configuration
*/
static void
run (void *cls, char *const *args, const char *cfgfile,
const struct GNUNET_CONFIGURATION_Handle *cfg)
{
sensor_handle = NULL;
GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL, &shutdown_task,
NULL);
sensor_handle = GNUNET_SENSOR_connect (cfg);
GNUNET_assert (NULL != sensor_handle);
if (GNUNET_YES == get_all)
{
GNUNET_SENSOR_iterate (sensor_handle, GNUNET_TIME_UNIT_FOREVER_REL, NULL,
&print_sensor_info, NULL);
}
else if (NULL != get_sensor)
{
GNUNET_SENSOR_iterate (sensor_handle, GNUNET_TIME_UNIT_FOREVER_REL,
get_sensor, &print_sensor_info, NULL);
}
else if (NULL != force_anomaly)
{
GNUNET_SENSOR_force_anomaly (sensor_handle, "nse", GNUNET_YES,
&force_anomaly_cont, NULL);
}
ret = 0;
}
/**
* The main function to sensor.
*
* @param argc number of arguments from the command line
* @param argv command line arguments
* @return 0 ok, 1 on error
*/
int
main (int argc, char *const *argv)
{
static const struct GNUNET_GETOPT_CommandLineOption options[] = {
{'a', "all", NULL,
gettext_noop ("Retrieve information about all defined sensors"),
0, &GNUNET_GETOPT_set_one, &get_all},
{'g', "get-sensor", NULL,
gettext_noop ("Retrieve information about a single sensor"),
1, &GNUNET_GETOPT_set_string, &get_sensor},
{'f', "force-anomaly", NULL,
gettext_noop ("Force an anomaly on a sensor, use only for testing"),
1, &GNUNET_GETOPT_set_string, &force_anomaly},
GNUNET_GETOPT_OPTION_END
};
return (GNUNET_OK ==
GNUNET_PROGRAM_run (argc, argv, "gnunet-sensor [options [value]]",
gettext_noop ("sensor"), options, &run,
NULL)) ? ret : 1;
}
/* end of gnunet-sensor.c */
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