foo.c

void clientmgr_handle_info(clientmgr_ctx *ctx, struct l3ctx *l3ctx, struct client *foreign_client) {
  printf("Received client info\n");
  print_client(foreign_client);

  struct client *client = clientmgr_get_client(ctx, foreign_client->mac);

  if (!client) {
    printf("Didn't know about this client yet.\n");
    client = foreign_client;
    VECTOR_ADD(ctx->clients, *client);
  } else {
    printf("Merging clients\n");
    print_client(client);

    for (int i = 0; i < VECTOR_LEN(foreign_client->addresses); i++) {
      struct client_ip *e = &VECTOR_INDEX(foreign_client->addresses, i);
      struct client_ip *ip = clientmgr_get_client_ip(foreign_client, &e->address);

      printf("ip %p e %p\n", ip, e);

      if (ip == NULL) {
        VECTOR_ADD(client->addresses, *e);
      } else if (e->lastseen.tv_nsec > ip->lastseen.tv_nsec) {
        ip->lastseen = e->lastseen;
      }
    }
  }

  printf("Now I know about this client:\n");

  print_client(client);

  clientmgr_update_client_routes(l3ctx, ctx->export_table, client);
}