1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of nss-myhostname.
6 Copyright 2008-2011 Lennart Poettering
7 Copyright 2011 Robert millan
9 nss-myhostname is free software; you can redistribute it and/or
10 modify it under the terms of the GNU Lesser General Public License
11 as published by the Free Software Foundation; either version 2.1 of
12 the License, or (at your option) any later version.
14 nss-myhostname is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 Lesser General Public License for more details.
19 You should have received a copy of the GNU Lesser General Public
20 License along with nss-myhostname; If not, see
21 <http://www.gnu.org/licenses/>.
24 #include <sys/types.h>
29 #include <netinet/in.h>
33 int ifconf_acquire_addresses(struct address **_list, unsigned *_n_list) {
34 struct address *list = NULL;
36 struct ifaddrs *ifa = NULL;
41 if (getifaddrs(&ifa) == -1) {
46 for (i = ifa; i != NULL; i = i->ifa_next) {
49 struct sockaddr_in6 *in6 = (struct sockaddr_in6 *) i->ifa_addr;
50 struct sockaddr_in *in = (struct sockaddr_in *) i->ifa_addr;
55 af = i->ifa_addr->sa_family;
57 if (af != AF_INET && af != AF_INET6)
60 list = realloc(list, (n_list+1) * sizeof(struct address));
71 list[n_list].family = af;
72 list[n_list].scope = 0;
73 memcpy(list[n_list].address, cp, PROTO_ADDRESS_SIZE(af));
74 list[n_list].ifindex = ifindex++;
85 qsort(list, n_list, sizeof(struct address), address_compare);