1 /*************************************************************************** 2 * _ _ ____ _ 3 * Project ___| | | | _ \| | 4 * / __| | | | |_) | | 5 * | (__| |_| | _ <| |___ 6 * \___|\___/|_| \_\_____| 7 * 8 * Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel (at) haxx.se>, et al. 9 * 10 * This software is licensed as described in the file COPYING, which 11 * you should have received as part of this distribution. The terms 12 * are also available at https://curl.haxx.se/docs/copyright.html. 13 * 14 * You may opt to use, copy, modify, merge, publish, distribute and/or sell 15 * copies of the Software, and permit persons to whom the Software is 16 * furnished to do so, under the terms of the COPYING file. 17 * 18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY 19 * KIND, either express or implied. 20 * 21 ***************************************************************************/ 22 #include "curlcheck.h" 23 24 #include "hostip.h" 25 26 CURLcode Curl_shuffle_addr(struct Curl_easy *data, 27 Curl_addrinfo **addr); 28 29 #define NUM_ADDRS 8 30 static struct Curl_addrinfo addrs[NUM_ADDRS]; 31 32 static CURLcode unit_setup(void) 33 { 34 int i; 35 for(i = 0; i < NUM_ADDRS - 1; i++) { 36 addrs[i].ai_next = &addrs[i + 1]; 37 } 38 39 return CURLE_OK; 40 } 41 42 static void unit_stop(void) 43 { 44 45 } 46 47 UNITTEST_START 48 { 49 int i; 50 CURLcode code; 51 struct Curl_addrinfo* addrhead = addrs; 52 53 struct Curl_easy *easy = curl_easy_init(); 54 abort_unless(easy, "out of memory"); 55 56 code = curl_easy_setopt(easy, CURLOPT_DNS_SHUFFLE_ADDRESSES, 1L); 57 abort_unless(code == CURLE_OK, "curl_easy_setopt failed"); 58 59 /* Shuffle repeatedly and make sure that the list changes */ 60 for(i = 0; i < 10; i++) { 61 if(CURLE_OK != Curl_shuffle_addr(easy, &addrhead)) 62 break; 63 if(addrhead != addrs) 64 break; 65 } 66 67 curl_easy_cleanup(easy); 68 69 abort_unless(addrhead != addrs, "addresses are not being reordered"); 70 71 return 0; 72 } 73 UNITTEST_STOP 74
