1 /* getifaddrs -- get names and addresses of all network interfaces
2 Copyright (C) 2002-2021 Free Software Foundation, Inc.
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
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.
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
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19 #include <ifaddrs.h>
20 #include <errno.h>
21 #include <stdlib.h>
22
23 /* Create a linked list of `struct ifaddrs' structures, one for each
24 network interface on the host machine. If successful, store the
25 list in *IFAP and return 0. On errors, return -1 and set `errno'. */
26 int
__getifaddrs(struct ifaddrs ** ifap)27 __getifaddrs (struct ifaddrs **ifap)
28 {
29 __set_errno (ENOSYS);
30 return -1;
31 }
weak_alias(__getifaddrs,getifaddrs)32 weak_alias (__getifaddrs, getifaddrs)
33 libc_hidden_def (__getifaddrs)
34 libc_hidden_weak (getifaddrs)
35 stub_warning (getifaddrs)
36
37 void
38 __freeifaddrs (struct ifaddrs *ifa)
39 {
40 if (ifa == NULL)
41 return; /* a la free, why not? */
42
43 /* Can't be called properly if getifaddrs never succeeded. */
44 abort ();
45 }
46 weak_alias (__freeifaddrs, freeifaddrs)
47 libc_hidden_def (__freeifaddrs)
48 libc_hidden_weak (freeifaddrs)
49 stub_warning (freeifaddrs)
50