1 /***************************************************************************
2 * _ _ ____ _
3 * Project ___| | | | _ \| |
4 * / __| | | | |_) | |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) 1998 - 2021, 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.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 /*
23 * This source code is used for lib1502, lib1503, lib1504 and lib1505 with
24 * only #ifdefs controlling the cleanup sequence.
25 *
26 * Test case 1502 converted from bug report #3575448, identifying a memory
27 * leak in the CURLOPT_RESOLVE handling with the multi interface.
28 */
29
30 #include "test.h"
31
32 #include <limits.h>
33
34 #include "testutil.h"
35 #include "warnless.h"
36 #include "memdebug.h"
37
38 #define TEST_HANG_TIMEOUT 60 * 1000
39
test(char * URL)40 int test(char *URL)
41 {
42 CURL *easy = NULL;
43 CURL *dup;
44 CURLM *multi = NULL;
45 int still_running;
46 int res = 0;
47
48 char redirect[160];
49
50 /* DNS cache injection */
51 struct curl_slist *dns_cache_list;
52
53 res_global_init(CURL_GLOBAL_ALL);
54 if(res) {
55 return res;
56 }
57
58 msnprintf(redirect, sizeof(redirect), "google.com:%s:%s", libtest_arg2,
59 libtest_arg3);
60
61 start_test_timing();
62
63 dns_cache_list = curl_slist_append(NULL, redirect);
64 if(!dns_cache_list) {
65 fprintf(stderr, "curl_slist_append() failed\n");
66 curl_global_cleanup();
67 return TEST_ERR_MAJOR_BAD;
68 }
69
70 easy_init(easy);
71
72 easy_setopt(easy, CURLOPT_URL, URL);
73 easy_setopt(easy, CURLOPT_HEADER, 1L);
74 easy_setopt(easy, CURLOPT_RESOLVE, dns_cache_list);
75
76 dup = curl_easy_duphandle(easy);
77 if(dup) {
78 curl_easy_cleanup(easy);
79 easy = dup;
80 }
81 else {
82 curl_slist_free_all(dns_cache_list);
83 curl_easy_cleanup(easy);
84 curl_global_cleanup();
85 return CURLE_OUT_OF_MEMORY;
86 }
87
88 multi_init(multi);
89
90 multi_add_handle(multi, easy);
91
92 multi_perform(multi, &still_running);
93
94 abort_on_test_timeout();
95
96 while(still_running) {
97 struct timeval timeout;
98 fd_set fdread;
99 fd_set fdwrite;
100 fd_set fdexcep;
101 int maxfd = -99;
102
103 FD_ZERO(&fdread);
104 FD_ZERO(&fdwrite);
105 FD_ZERO(&fdexcep);
106 timeout.tv_sec = 1;
107 timeout.tv_usec = 0;
108
109 multi_fdset(multi, &fdread, &fdwrite, &fdexcep, &maxfd);
110
111 /* At this point, maxfd is guaranteed to be greater or equal than -1. */
112
113 select_test(maxfd + 1, &fdread, &fdwrite, &fdexcep, &timeout);
114
115 abort_on_test_timeout();
116
117 multi_perform(multi, &still_running);
118
119 abort_on_test_timeout();
120 }
121
122 test_cleanup:
123
124 #ifdef LIB1502
125 /* undocumented cleanup sequence - type UA */
126 curl_multi_cleanup(multi);
127 curl_easy_cleanup(easy);
128 curl_global_cleanup();
129 #endif
130
131 #ifdef LIB1503
132 /* proper cleanup sequence - type PA */
133 curl_multi_remove_handle(multi, easy);
134 curl_multi_cleanup(multi);
135 curl_easy_cleanup(easy);
136 curl_global_cleanup();
137 #endif
138
139 #ifdef LIB1504
140 /* undocumented cleanup sequence - type UB */
141 curl_easy_cleanup(easy);
142 curl_multi_cleanup(multi);
143 curl_global_cleanup();
144 #endif
145
146 #ifdef LIB1505
147 /* proper cleanup sequence - type PB */
148 curl_multi_remove_handle(multi, easy);
149 curl_easy_cleanup(easy);
150 curl_multi_cleanup(multi);
151 curl_global_cleanup();
152 #endif
153
154 curl_slist_free_all(dns_cache_list);
155
156 return res;
157 }
158