/**************************************************************************** * 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 #ifdef CONFIG_NET_IPv6 #include #include #include #include #include #include #include #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(NET_SOCK_FAMILY, NET_SOCK_TYPE, NET_SOCK_PROTOCOL); if (sockfd >= 0) { struct lifreq req; strlcpy(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 */