| 1 | /* Name server address at specified index in res_state. |
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| 2 | Copyright (C) 2015-2022 Free Software Foundation, Inc. |
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| 3 | This file is part of the GNU C Library. |
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| 4 | |
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| 5 | The GNU C Library is free software; you can redistribute it and/or |
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| 6 | modify it under the terms of the GNU Lesser General Public |
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| 7 | License as published by the Free Software Foundation; either |
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| 8 | version 2.1 of the License, or (at your option) any later version. |
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| 9 | |
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| 10 | The GNU C Library is distributed in the hope that it will be useful, |
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 13 | Lesser General Public License for more details. |
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| 14 | |
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| 15 | You should have received a copy of the GNU Lesser General Public |
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| 16 | License along with the GNU C Library; if not, see |
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| 17 | <https://www.gnu.org/licenses/>. */ |
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| 18 | |
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| 19 | #include <assert.h> |
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| 20 | #include <resolv.h> |
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| 21 | #include <resolv-internal.h> |
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| 22 | |
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| 23 | struct sockaddr * |
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| 24 | __res_get_nsaddr (res_state statp, unsigned int n) |
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| 25 | { |
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| 26 | assert (n < statp->nscount); |
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| 27 | |
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| 28 | if (statp->nsaddr_list[n].sin_family == 0 |
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| 29 | && statp->_u._ext.nsaddrs[n] != NULL) |
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| 30 | /* statp->_u._ext.nsaddrs[n] holds an address that is larger than |
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| 31 | struct sockaddr, and user code did not update |
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| 32 | statp->nsaddr_list[n]. */ |
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| 33 | return (struct sockaddr *) statp->_u._ext.nsaddrs[n]; |
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| 34 | else |
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| 35 | /* User code updated statp->nsaddr_list[n], or statp->nsaddr_list[n] |
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| 36 | has the same content as statp->_u._ext.nsaddrs[n]. */ |
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| 37 | return (struct sockaddr *) (void *) &statp->nsaddr_list[n]; |
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| 38 | } |
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| 39 | libc_hidden_def (__res_get_nsaddr) |
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| 40 | |
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