1 /* Name server address at specified index in res_state. 2 Copyright (C) 2015-2022 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 23 struct sockaddr * __res_get_nsaddr(res_state statp,unsigned int n)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 } 39 libc_hidden_def (__res_get_nsaddr) 40