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curl

    1: /***************************************************************************
    2:  *                                  _   _ ____  _
    3:  *  Project                     ___| | | |  _ \| |
    4:  *                             / __| | | | |_) | |
    5:  *                            | (__| |_| |  _ <| |___
    6:  *                             \___|\___/|_| \_\_____|
    7:  *
    8:  * Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@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:   curl_global_cleanup();
   69: 
   70:   abort_unless(addrhead != addrs, "addresses are not being reordered");
   71: 
   72:   return 0;
   73: }
   74: UNITTEST_STOP