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/*
* Copyright (C) 2017 Kaspar Schleiser <kaspar@schleiser.de>
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @ingroup tests
* @{
*
* @file
* @brief sock DNS client test application
*
* @author Kaspar Schleiser <kaspar@schleiser.de>
*
* @}
*/
#include <stddef.h>
#include <stdio.h>
#include <arpa/inet.h>
#include "net/sock/dns.h"
#include "net/sock/util.h"
#include "xtimer.h"
#ifndef TEST_NAME
#define TEST_NAME "example.org"
#endif
#ifndef DNS_SERVER
#define DNS_SERVER "[2001:db8::1]:53"
#endif
/* global DNS server UDP endpoint */
sock_udp_ep_t sock_dns_server;
/* import "ifconfig" shell command, used for printing addresses */
extern int _netif_config(int argc, char **argv);
int main(void)
{
uint8_t addr[16] = {0};
sock_udp_str2ep(&sock_dns_server, DNS_SERVER);
puts("waiting for router advertisement...");
xtimer_usleep(1U*1000000);
/* print network addresses */
puts("Configured network interfaces:");
_netif_config(0, NULL);
int res = sock_dns_query(TEST_NAME, addr, AF_UNSPEC);
if (res > 0) {
char addrstr[INET6_ADDRSTRLEN];
inet_ntop(res == 4 ? AF_INET : AF_INET6, addr, addrstr, sizeof(addrstr));
printf("%s resolves to %s\n", TEST_NAME, addrstr);
}
else {
printf("error resolving %s\n", TEST_NAME);
}
return 0;
}