67 lines
2.1 KiB
C
67 lines
2.1 KiB
C
/****************************************************************************
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* libs/libc/netdb/lib_dnsdefaultserver.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdbool.h>
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#include <assert.h>
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#include <errno.h>
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#include <debug.h>
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#include <nuttx/net/dns.h>
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#include "netdb/lib_dns.h"
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#ifdef CONFIG_NETDB_DNSCLIENT
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: dns_default_nameserver
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*
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* Description:
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* Reset the resolver to use only the default DNS server, if any.
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*
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****************************************************************************/
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#ifdef CONFIG_NETDB_RESOLVCONF
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int dns_default_nameserver(void)
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{
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/* REVISIT: not implemented */
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return -ENOSYS;
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}
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#else /* CONFIG_NETDB_RESOLVCONF */
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int dns_default_nameserver(void)
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{
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dns_semtake();
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g_dns_nservers = 0;
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dns_semgive();
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return OK;
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}
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#endif /* CONFIG_NETDB_RESOLVCONF */
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#endif /* CONFIG_NETDB_DNSCLIENT */
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