| /* Copyright (C) 1999-2014 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| Contributed by Andreas Jaeger <aj@suse.de>. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <unistd.h> |
| #include <net/if.h> |
| #include <sys/socket.h> |
| #include <sys/ioctl.h> |
| #include <sys/mman.h> |
| |
| static inline struct ifreq * |
| __if_nextreq (struct ifreq *ifr) |
| { |
| #ifdef _HAVE_SA_LEN |
| if (ifr->ifr_addr.sa_len > sizeof ifr->ifr_addr) |
| return (struct ifreq *) ((char *) &ifr->ifr_addr + ifr->ifr_addr.sa_len); |
| #endif |
| return ifr + 1; |
| } |
| |
| extern void __ifreq (struct ifreq **ifreqs, int *num_ifs, int sockfd); |
| |
| |
| static inline void |
| __if_freereq (struct ifreq *ifreqs, int num_ifs) |
| { |
| munmap (ifreqs, num_ifs * sizeof (struct ifreq)); |
| } |