libhomeradar

If you wish to share your data but currently you have no internet access, you can use the homeradar_dump2disc() function to write all contacts to a normal textfile which can later be imported by the import functions of libhomeradar.

From the author: Sometimes when i'm on the road to a spotting location, i'll take my notebook and my Radarbox with me. During the complete trip the notebook is running and write all contacts to disc. Later when i'm at home, the collected data will be imported to the public database.

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/* System includes */
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>

/* libhomeradar header include */
#include "libhomeradar.h"

/* Callback function to show aircraft informations */
void newcontact(void *handle,const int *id, LHR_CONTACT *C) {
  LHR_AIRPORTS *P;

  printf("%sContact: %s [%s]\nAirline: %s\nFlightnumber: %s  Callsign: %s\nSquawk: %d\n",
         (C->newcontact)?"AIR":"",
          C->icao24,(C->reg)?C->reg:"UNKNOWN",
         (C->airline)?C->airline:"NULL",C->flightnum,C->callsign,C->squawk);
  printf("Aircraft: %s %s [%s] cn:%s\n",C->manufacturer,C->model,C->details,C->cn);
  printf("Routing: %s LAT: %0.5f LON: %0.5f\n",C->route,C->lat,C->lon);

  /* Get airport informations */
  P = C->airports;
  while (P) {
    if (P->airport) {
      printf("Airport [%s / %s] Name: %s, %s\n",
             P->airport->iata,P->airport->icao,
             P->airport->name,P->airport->country);
    } else printf("Unresolveable: %s\n",P->apcode);
    P = P->next;
  }

  /* Free LHR_CONTACT struct */
  homeradar_freecontact(C); 
}

/* Connect is established */
void connected(LHR handle, const int *item) {
  printf("SUCCESSFULLY CONNECTED TO = %s\n",homeradar_gethostbyid(handle,*(item)));

  /* Setup the event listener for the LHR_ONCONTACT event */
  if (homeradar_onhandler(handle, LHR_ONCONTACT, *(item), newcontact)==0) {
    printf("Unable to add event listener\n");
  } else printf("Contact handler successfully installed\n");
}

/* Main program */
int main(int argc, char **argv) {
  int e;
  LHR H = homeradar_init(16,LHR_AUTOCONNECT,&e,NULL);

  /* No error */
  if (H == NULL) {
    printf("Error initializing libhomeradar. Errorcode #%d\n",e);
    return 255;
  }

  /* Add host without event listener */
  e = homeradar_addhost(H, "sbs1.libhomeradar.org", 33033, LHR_SBS1, LHR_ONCONNECT, connected);

  /* Export contacts to disc */
  (void)homeradar_dump2disc(H, "./libhomeradar.export.txt", 1);

  /* Do nothing - in this example - loop will be finished after 5 minutes
     In your real program you can do now what you want */
  e = 50;
  while (e--) sleep(6);

  /* Shutdown libhomeradar and free all alocated memory */
  printf("Shutdown libhomeradar...\n");
  homeradar_destroy(H);

  /* Return success */
  return 0;
}