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/*
* 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 <sys/system_properties.h>
lws_async_dns_server_check_t
lws_plat_asyncdns_init(struct lws_context *context, lws_sockaddr46 *sa46)
{
char d[PROP_VALUE_MAX], *p;
uint32_t ip32;
uint8_t i[4];
int n;
d[0] = '\0';
if (__system_property_get("net.dns1", d) <= 0)
return LADNS_CONF_SERVER_UNKNOWN;
for (n = 0; n < 4; n++) {
i[n] = (uint8_t)atoi(d);
p = strchr(d, '.');
if (n != 3 && !p)
return LADNS_CONF_SERVER_UNKNOWN;
}
ip32 = (uint32_t) ((i[0] << 24) | (i[1] << 16) | (i[2] << 8) | i[3]);
n = ip32 == sa46->sa4.sin_addr.s_addr;
sa46->sa4.sin_family = AF_INET;
sa46->sa4.sin_addr.s_addr = ip32;
return n ? LADNS_CONF_SERVER_SAME : LADNS_CONF_SERVER_CHANGED;
}
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