diff options
Diffstat (limited to 'src/odhcpd.c')
| -rw-r--r-- | src/odhcpd.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/src/odhcpd.c b/src/odhcpd.c index 8aa4571..2c6ae46 100644 --- a/src/odhcpd.c +++ b/src/odhcpd.c @@ -200,20 +200,27 @@ ssize_t odhcpd_send(int socket, struct sockaddr_in6 *dest, static int odhcpd_get_linklocal_interface_address(int ifindex, struct in6_addr *lladdr) { - int status = -1; - struct sockaddr_in6 addr = {AF_INET6, 0, 0, ALL_IPV6_ROUTERS, ifindex}; + int ret = -1; + struct sockaddr_in6 addr; socklen_t alen = sizeof(addr); int sock = socket(AF_INET6, SOCK_RAW, IPPROTO_ICMPV6); + if (sock < 0) + return -1; + + memset(&addr, 0, sizeof(addr)); + addr.sin6_family = AF_INET6; + inet_pton(AF_INET6, ALL_IPV6_ROUTERS, &addr.sin6_addr); + addr.sin6_scope_id = ifindex; + if (!connect(sock, (struct sockaddr*)&addr, sizeof(addr)) && !getsockname(sock, (struct sockaddr*)&addr, &alen)) { *lladdr = addr.sin6_addr; - status = 0; + ret = 0; } close(sock); - - return status; + return ret; } /* |