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b6ab06ce | 1 | /* Determine protocol families for which interfaces exist. Generic version. |
f7a9f785 | 2 | Copyright (C) 2003-2016 Free Software Foundation, Inc. |
478b92f0 UD |
3 | This file is part of the GNU C Library. |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
41bdb6e2 AJ |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
478b92f0 UD |
9 | |
10 | The GNU C Library is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
41bdb6e2 | 13 | Lesser General Public License for more details. |
478b92f0 | 14 | |
41bdb6e2 | 15 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 PE |
16 | License along with the GNU C Library; if not, see |
17 | <http://www.gnu.org/licenses/>. */ | |
28f540f4 | 18 | |
b6ab06ce UD |
19 | #include <ifaddrs.h> |
20 | #include <netdb.h> | |
e054f494 | 21 | #include <stdint.h> |
28f540f4 | 22 | |
28f540f4 | 23 | void |
b6ab06ce | 24 | attribute_hidden |
3af48b5b UD |
25 | __check_pf (bool *seen_ipv4, bool *seen_ipv6, |
26 | struct in6addrinfo **in6ai, size_t *in6ailen) | |
28f540f4 | 27 | { |
3af48b5b UD |
28 | /* By default we have no way to determine information about |
29 | deprecated and temporary addresses. */ | |
30 | *in6ai = NULL; | |
31 | *in6ailen = 0; | |
32 | ||
b6ab06ce UD |
33 | /* Get the interface list via getifaddrs. */ |
34 | struct ifaddrs *ifa = NULL; | |
35 | if (getifaddrs (&ifa) != 0) | |
36 | { | |
37 | /* We cannot determine what interfaces are available. Be | |
38 | pessimistic. */ | |
39 | *seen_ipv4 = true; | |
40 | *seen_ipv6 = true; | |
41 | return; | |
42 | } | |
43 | ||
44 | *seen_ipv4 = false; | |
45 | *seen_ipv6 = false; | |
46 | ||
47 | struct ifaddrs *runp; | |
48 | for (runp = ifa; runp != NULL; runp = runp->ifa_next) | |
49 | if (runp->ifa_addr->sa_family == PF_INET) | |
50 | *seen_ipv4 = true; | |
51 | else if (runp->ifa_addr->sa_family == PF_INET6) | |
52 | *seen_ipv6 = true; | |
53 | ||
54 | (void) freeifaddrs (ifa); | |
28f540f4 | 55 | } |
3a2c0242 UD |
56 | |
57 | ||
58 | void | |
59 | __free_in6ai (struct in6addrinfo *in6ai) | |
60 | { | |
61 | /* Nothing to do. */ | |
62 | } | |
63 | ||
64 | ||
85f36372 | 65 | #if IS_IN (nscd) |
3a2c0242 UD |
66 | uint32_t |
67 | __bump_nl_timestamp (void) | |
68 | { | |
69 | return 0; | |
70 | } | |
71 | #endif |