/*************************************************************************** * _ _ ____ _ * Project ___| | | | _ \| | * / __| | | | |_) | | * | (__| |_| | _ <| |___ * \___|\___/|_| \_\_____| * * Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al. * * This software is licensed as described in the file COPYING, which * you should have received as part of this distribution. The terms * are also available at https://curl.haxx.se/docs/copyright.html. * * You may opt to use, copy, modify, merge, publish, distribute and/or sell * copies of the Software, and permit persons to whom the Software is * furnished to do so, under the terms of the COPYING file. * * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY * KIND, either express or implied. * ***************************************************************************/ #include "curlcheck.h" #include "hostip.h" CURLcode Curl_shuffle_addr(struct Curl_easy *data, Curl_addrinfo **addr); #define NUM_ADDRS 8 static struct Curl_addrinfo addrs[NUM_ADDRS]; static CURLcode unit_setup(void) { int i; for(i = 0; i < NUM_ADDRS - 1; i++) { addrs[i].ai_next = &addrs[i + 1]; } return CURLE_OK; } static void unit_stop(void) { } UNITTEST_START { int i; CURLcode code; struct Curl_addrinfo* addrhead = addrs; struct Curl_easy *easy = curl_easy_init(); abort_unless(easy, "out of memory"); code = curl_easy_setopt(easy, CURLOPT_DNS_SHUFFLE_ADDRESSES, 1L); abort_unless(code == CURLE_OK, "curl_easy_setopt failed"); /* Shuffle repeatedly and make sure that the list changes */ for(i = 0; i < 10; i++) { if(CURLE_OK != Curl_shuffle_addr(easy, &addrhead)) break; if(addrhead != addrs) break; } curl_easy_cleanup(easy); curl_global_cleanup(); abort_unless(addrhead != addrs, "addresses are not being reordered"); return 0; } UNITTEST_STOP