ares_free_hostent.c (1771B)
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 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 }