mirror of
https://sourceware.org/git/glibc.git
synced 2025-10-30 10:45:40 +03:00
72 lines
1.9 KiB
C
72 lines
1.9 KiB
C
/* Determine protocol families for which interfaces exist. Generic version.
|
|
Copyright (C) 2003-2015 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
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 <ifaddrs.h>
|
|
#include <netdb.h>
|
|
#include <stdint.h>
|
|
|
|
void
|
|
attribute_hidden
|
|
__check_pf (bool *seen_ipv4, bool *seen_ipv6,
|
|
struct in6addrinfo **in6ai, size_t *in6ailen)
|
|
{
|
|
/* By default we have no way to determine information about
|
|
deprecated and temporary addresses. */
|
|
*in6ai = NULL;
|
|
*in6ailen = 0;
|
|
|
|
/* Get the interface list via getifaddrs. */
|
|
struct ifaddrs *ifa = NULL;
|
|
if (getifaddrs (&ifa) != 0)
|
|
{
|
|
/* We cannot determine what interfaces are available. Be
|
|
pessimistic. */
|
|
*seen_ipv4 = true;
|
|
*seen_ipv6 = true;
|
|
return;
|
|
}
|
|
|
|
*seen_ipv4 = false;
|
|
*seen_ipv6 = false;
|
|
|
|
struct ifaddrs *runp;
|
|
for (runp = ifa; runp != NULL; runp = runp->ifa_next)
|
|
if (runp->ifa_addr->sa_family == PF_INET)
|
|
*seen_ipv4 = true;
|
|
else if (runp->ifa_addr->sa_family == PF_INET6)
|
|
*seen_ipv6 = true;
|
|
|
|
(void) freeifaddrs (ifa);
|
|
}
|
|
|
|
|
|
void
|
|
__free_in6ai (struct in6addrinfo *in6ai)
|
|
{
|
|
/* Nothing to do. */
|
|
}
|
|
|
|
|
|
#if IS_IN (nscd)
|
|
uint32_t
|
|
__bump_nl_timestamp (void)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif
|