/*
 * libwebsockets - small server side websockets and web server implementation
 *
 * Copyright (C) 2010 - 2019 Andy Green <andy@warmcat.com>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
 * deal in the Software without restriction, including without limitation the
 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 * sell copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 * IN THE SOFTWARE.
 */

#include "private-lib-core.h"
#include "private-lib-async-dns.h"

#if defined(LWS_WITH_ESP32)
#include <lwip/dns.h>
#endif

#if defined(LWS_WITH_SYS_ASYNC_DNS)
int
lws_plat_asyncdns_get_server(struct lws_context *context, int index,
			     lws_sockaddr46 *sa46)
{
#if defined(LWS_WITH_ESP32)
	const ip_addr_t *dns;
#else
	uint32_t ipv4;
#endif

#if defined(LWS_WITH_ESP32)
	if (index > 2)
		return -1;

	dns = dns_getserver(index);
	if (!dns || ip_addr_isany(dns))
		return -1;

	memset(sa46, 0, sizeof(*sa46));
#if defined(LWIP_IPV6) && LWIP_IPV6
#if defined(LWS_WITH_IPV6)
	if (IP_IS_V6(dns)) {
		sa46->sa4.sin_family = AF_INET6;
		memcpy(&sa46->sa6.sin6_addr, ip_2_ip6(dns)->addr, 16);
	} else
#endif
	{
		sa46->sa4.sin_family = AF_INET;
		sa46->sa4.sin_addr.s_addr = ip_2_ip4(dns)->addr;
	}
#else
	sa46->sa4.sin_family = AF_INET;
	sa46->sa4.sin_addr.s_addr = dns->addr;
#endif

	return 0;
#else
	if (index > 0)
		return -1;

	FreeRTOS_GetAddressConfiguration(NULL, NULL, NULL, &ipv4);

	memset(sa46, 0, sizeof(*sa46));
	sa46->sa4.sin_family = AF_INET;
	sa46->sa4.sin_addr.s_addr = ipv4;

	return 0;
#endif
}

#endif

int
lws_plat_ntpclient_config(struct lws_context *context)
{
	lws_system_blob_heap_append(lws_system_get_blob(context,
				    LWS_SYSBLOB_TYPE_NTP_SERVER, 0),
				    (const uint8_t *)"pool.ntp.org", 13);

	return 0;
}
