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45 lines
1.4 KiB
C
45 lines
1.4 KiB
C
/* Copyright (C) 1999-2013 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Andreas Jaeger <aj@suse.de>.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <net/if.h>
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#include <sys/socket.h>
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#include <sys/ioctl.h>
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#include <sys/mman.h>
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static inline struct ifreq *
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__if_nextreq (struct ifreq *ifr)
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{
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#ifdef _HAVE_SA_LEN
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if (ifr->ifr_addr.sa_len > sizeof ifr->ifr_addr)
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return (struct ifreq *) ((char *) &ifr->ifr_addr + ifr->ifr_addr.sa_len);
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#endif
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return ifr + 1;
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}
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extern void __ifreq (struct ifreq **ifreqs, int *num_ifs, int sockfd);
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static inline void
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__if_freereq (struct ifreq *ifreqs, int num_ifs)
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{
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munmap (ifreqs, num_ifs * sizeof (struct ifreq));
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}
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