Use pragmas rather than makefiles for necessary options for unwind code.
[glibc.git] / inet / if_index.c
blob8b30d0190c4a2f0518c06d9958f4df16c902c523
1 /* Copyright (C) 1997-2014 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <http://www.gnu.org/licenses/>. */
18 #include <net/if.h>
19 #include <errno.h>
20 #include <stddef.h>
22 unsigned int
23 __if_nametoindex (const char *ifname)
25 __set_errno (ENOSYS);
26 return 0;
28 libc_hidden_def (__if_nametoindex)
29 weak_alias (__if_nametoindex, if_nametoindex)
30 libc_hidden_weak (if_nametoindex)
31 stub_warning (if_nametoindex)
33 char *
34 __if_indextoname (unsigned int ifindex, char *ifname)
36 __set_errno (ENOSYS);
37 return NULL;
39 weak_alias (__if_indextoname, if_indextoname)
40 libc_hidden_weak (if_indextoname)
41 stub_warning (if_indextoname)
43 void
44 __if_freenameindex (struct if_nameindex *ifn)
47 weak_alias (__if_freenameindex, if_freenameindex)
48 stub_warning (if_freenameindex)
50 struct if_nameindex *
51 __if_nameindex (void)
53 __set_errno (ENOSYS);
54 return NULL;
56 weak_alias (__if_nameindex, if_nameindex)
57 stub_warning (if_nameindex)
59 #if 0
60 void
61 internal_function
62 __protocol_available (int *have_inet, int *have_inet6)
64 /* By default we assume that IPv4 is available, IPv6 not. */
65 *have_inet = 1;
66 *have_inet6 = 0;
68 #endif