1 /* MIT License
2 *
3 * Copyright (c) 1998 Massachusetts Institute of Technology
4 * Copyright (c) The c-ares project and its contributors
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the next
14 * paragraph) shall be included in all copies or substantial portions of the
15 * Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
23 * SOFTWARE.
24 *
25 * SPDX-License-Identifier: MIT
26 */
27 #include "ares_private.h"
28
29 #ifdef HAVE_NETDB_H
30 # include <netdb.h>
31 #endif
32
ares_free_hostent(struct hostent * host)33 void ares_free_hostent(struct hostent *host)
34 {
35 char **p;
36
37 if (!host) {
38 return;
39 }
40
41 ares_free(host->h_name);
42 for (p = host->h_aliases; p && *p; p++) {
43 ares_free(*p);
44 }
45 ares_free(host->h_aliases);
46 if (host->h_addr_list) {
47 size_t i;
48 for (i=0; host->h_addr_list[i] != NULL; i++) {
49 ares_free(host->h_addr_list[i]);
50 }
51 ares_free(host->h_addr_list);
52 }
53 ares_free(host);
54 }
55