nuttx-apps/netutils/netlib/netlib_setipv4dnsaddr.c
2016-01-13 15:08:59 -06:00

95 lines
3.2 KiB
C

/****************************************************************************
* netutils/netlib/netlib_setipv4dnsaddr.c
*
* Copyright (C) 2015 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <sys/socket.h>
#include <string.h>
#include <errno.h>
#include <netinet/in.h>
#include <nuttx/net/dns.h>
#include <apps/netutils/netlib.h>
#if defined(CONFIG_NET_IPv4) && defined(CONFIG_NETDB_DNSCLIENT)
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: netlib_set_ipv4dnsaddr
*
* Description:
* Set the DNS server IPv4 address
*
* Parameters:
* inaddr The address to set
*
* Return:
* Zero (OK) is returned on success; A negated errno value is returned
* on failure.
*
****************************************************************************/
int netlib_set_ipv4dnsaddr(FAR const struct in_addr *inaddr)
{
struct sockaddr_in addr;
int ret = -EINVAL;
if (inaddr)
{
/* Set the IPv4 DNS server address */
addr.sin_family = AF_INET;
addr.sin_port = 0;
memcpy(&addr.sin_addr, inaddr, sizeof(struct in_addr));
ret = dns_add_nameserver((FAR const struct sockaddr *)&addr,
sizeof(struct sockaddr_in));
}
return ret;
}
#endif /* CONFIG_NET_IPv4 && CONFIG_NETDB_DNSCLIENT */