nuttx-apps/netutils/netlib/netlib_getipv6addr.c
Alin Jerpelea 5572819bb1 netutils: nxstyle fixes
fixes for errors reported by nxstyle tool

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
2021-06-11 08:53:57 -05:00

92 lines
2.8 KiB
C

/****************************************************************************
* apps/netutils/netlib/netlib_getipv6addr.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>
#ifdef CONFIG_NET_IPv6
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
#include <netinet/in.h>
#include <net/if.h>
#include "netutils/netlib.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: netlib_get_ipv6addr
*
* Description:
* Get the network driver IPv6 address
*
* Parameters:
* ifname The name of the interface to use
* ipaddr The location to return the IP address
*
* Return:
* 0 on success; -1 on failure
*
****************************************************************************/
int netlib_get_ipv6addr(FAR const char *ifname, FAR struct in6_addr *addr)
{
int ret = ERROR;
if (ifname && addr)
{
int sockfd = socket(PF_INET6, NETLIB_SOCK_TYPE, 0);
if (sockfd >= 0)
{
struct lifreq req;
strncpy(req.lifr_name, ifname, IFNAMSIZ);
ret = ioctl(sockfd, SIOCGLIFADDR, (unsigned long)&req);
if (!ret)
{
FAR struct sockaddr_in6 *req_addr;
req_addr = (FAR struct sockaddr_in6 *)&req.lifr_addr;
memcpy(addr, &req_addr->sin6_addr, sizeof(struct in6_addr));
}
close(sockfd);
}
}
return ret;
}
#endif /* CONFIG_NET_IPv6 */