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