1 /***************************************************************************
2 * _ _ ____ _
3 * Project ___| | | | _ \| |
4 * / __| | | | |_) | |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) 1998 - 2020, 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 struct Curl_addrinfo **addr);
28
29 #define NUM_ADDRS 8
30 static struct Curl_addrinfo addrs[NUM_ADDRS];
31
unit_setup(void)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
unit_stop(void)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
75