gpsfake.cc

/*
    This file is part of Kismet

    Kismet 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 2 of the License, or
    (at your option) any later version.

    Kismet 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 Kismet; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

#include <time.h>
#include "gpsfake.h"
#include "gpstracker.h"
#include "messagebus.h"

GPSFake::GPSFake(GlobalRegistry *in_globalreg, SharedGpsBuilder in_builder) : 
    KisGps(in_globalreg, in_builder) { }

GPSFake::~GPSFake() { }

bool GPSFake::open_gps(std::string in_opts) {
    local_locker lock(&gps_mutex);

    if (!KisGps::open_gps(in_opts)) {
        return false;
    }

    std::string proto_lat;
    std::string proto_lon;
    std::string proto_alt;

    proto_lat = FetchOpt("lat", source_definition_opts);
    proto_lon = FetchOpt("lon", source_definition_opts);
    proto_alt = FetchOpt("alt", source_definition_opts);

    gps_location = new kis_gps_packinfo();

    if (proto_lat == "" || proto_lon == "") {
        _MSG("GPSVirtual expected lat= and lon= options.", MSGFLAG_ERROR);
        return false;
    }

    if (sscanf(proto_lat.c_str(), "%lf", &(gps_location->lat)) != 1) {
        _MSG("GPSVirtual expected decimal coordinate in lat= option", MSGFLAG_ERROR);
        return false;
    }

    if (sscanf(proto_lon.c_str(), "%lf", &(gps_location->lon)) != 1) {
        _MSG("GPSVirtual expected decimal coordinate in lon= option", MSGFLAG_ERROR);
        return false;
    }

    gps_location->fix = 2;

    if (proto_alt != "") {
        if (sscanf(proto_alt.c_str(), "%lf", &(gps_location->alt)) != 1) {
            _MSG("GPSVirtual expected decimal altitude in alt= option", MSGFLAG_ERROR);
            return false;
        }

        gps_location->fix = 3;
    }

    std::stringstream msg;
    msg << "GPSVirtual setting location to " << gps_location->lat << "," <<
        gps_location->lon << " @ " << gps_location->alt << "m";
    _MSG(msg.str(), MSGFLAG_INFO);

    msg.str("");
    msg << "Virtual GPS at " << gps_location->lat << "," << 
        gps_location->lon << " @ " << gps_location->alt << "m";
    set_int_gps_description(msg.str());

    gps_last_location = new kis_gps_packinfo(gps_location);

    update_locations();

    return true;
}

kis_gps_packinfo *GPSFake::get_location() {
    local_locker lock(&gps_mutex);

    gettimeofday(&(gps_location->tv), NULL);

    return gps_location;
}

kis_gps_packinfo *GPSFake::get_last_location() {
    local_locker lock(&gps_mutex);

    gettimeofday(&(gps_last_location->tv), NULL);

    return gps_last_location;
}