libhomeradar

Since version 1.005 libhomeradar comes with a small administration interface which is disabled by default. If the control interface is enabled, you can use a normal telnet session to connect to the application which currently uses libhomeradar and get some informations.
The next version of libhomeradar will have more options within the control interface.

It's not possible to shutdown the running application or to close the currently used libhomeradar handle with the control interface!

After compilation and start, you should access the control interface via telnet localhost 2222

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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);

  /* Enable control interface */
  (void)homeradar_config(H, LHR_CONTROL_IF_HOST, "localhost");
  e = 3; (void)homeradar_config(H, LHR_CONTROL_IF_LIMIT, &e);
  e = 1; (void)homeradar_config(H, LHR_CONTROL_IF, &e);

  fprintf(stderr,"Now start a telnet application: telnet localhost 2222\n");

  /* 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;
}