1 | /* Copyright (C) 1999-2016 Free Software Foundation, Inc. |
2 | This file is part of the GNU C Library. |
3 | Contributed by Andreas Jaeger <aj@suse.de>. |
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 | <http://www.gnu.org/licenses/>. */ |
18 | |
19 | #include <stdio.h> |
20 | #include <stdlib.h> |
21 | #include <unistd.h> |
22 | #include <net/if.h> |
23 | #include <sys/socket.h> |
24 | #include <sys/ioctl.h> |
25 | |
26 | static inline struct ifreq * |
27 | __if_nextreq (struct ifreq *ifr) |
28 | { |
29 | #ifdef _HAVE_SA_LEN |
30 | if (ifr->ifr_addr.sa_len > sizeof ifr->ifr_addr) |
31 | return (struct ifreq *) ((char *) &ifr->ifr_addr + ifr->ifr_addr.sa_len); |
32 | #endif |
33 | return ifr + 1; |
34 | } |
35 | |
36 | extern void __ifreq (struct ifreq **ifreqs, int *num_ifs, int sockfd); |
37 | |
38 | |
39 | static inline void |
40 | __if_freereq (struct ifreq *ifreqs, int num_ifs) |
41 | { |
42 | free (ifreqs); |
43 | } |
44 | |