1/* Name server address at specified index in res_state.
2 Copyright (C) 2015-2023 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
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 <https://www.gnu.org/licenses/>. */
18
19#include <assert.h>
20#include <resolv.h>
21#include <resolv-internal.h>
22
23struct sockaddr *
24__res_get_nsaddr (res_state statp, unsigned int n)
25{
26 assert (n < statp->nscount);
27
28 if (statp->nsaddr_list[n].sin_family == 0
29 && statp->_u._ext.nsaddrs[n] != NULL)
30 /* statp->_u._ext.nsaddrs[n] holds an address that is larger than
31 struct sockaddr, and user code did not update
32 statp->nsaddr_list[n]. */
33 return (struct sockaddr *) statp->_u._ext.nsaddrs[n];
34 else
35 /* User code updated statp->nsaddr_list[n], or statp->nsaddr_list[n]
36 has the same content as statp->_u._ext.nsaddrs[n]. */
37 return (struct sockaddr *) (void *) &statp->nsaddr_list[n];
38}
39libc_hidden_def (__res_get_nsaddr)
40