1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
|
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, 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.
*
***************************************************************************/
/*
* Check for bugs #1303 and #1327: libcurl should never remove DNS entries
* created via CURLOPT_RESOLVE, neither after DNS_CACHE_TIMEOUT elapses
* (test1515) nor a dead connection is detected (test1616).
*/
#include "test.h"
#include "testutil.h"
#include "warnless.h"
#include "memdebug.h"
#define TEST_HANG_TIMEOUT 60 * 1000
#define DNS_TIMEOUT 1
#if defined(WIN32) || defined(_WIN32)
#define sleep(sec) Sleep ((sec)*1000)
#endif
static int debug_callback(CURL *curl, curl_infotype info, char *msg,
size_t len, void *ptr)
{
(void)curl;
(void)ptr;
if(info == CURLINFO_TEXT)
fprintf(stderr, "debug: %.*s", (int) len, msg);
return 0;
}
static int do_one_request(CURLM *m, char *URL, char *resolve)
{
CURL *curls;
struct curl_slist *resolve_list = NULL;
int still_running;
int res = 0;
CURLMsg *msg;
int msgs_left;
resolve_list = curl_slist_append(resolve_list, resolve);
easy_init(curls);
easy_setopt(curls, CURLOPT_URL, URL);
easy_setopt(curls, CURLOPT_RESOLVE, resolve_list);
easy_setopt(curls, CURLOPT_DEBUGFUNCTION, debug_callback);
easy_setopt(curls, CURLOPT_VERBOSE, 1);
easy_setopt(curls, CURLOPT_DNS_CACHE_TIMEOUT, DNS_TIMEOUT);
multi_add_handle(m, curls);
multi_perform(m, &still_running);
abort_on_test_timeout();
while(still_running) {
struct timeval timeout;
fd_set fdread, fdwrite, fdexcep;
int maxfd = -99;
FD_ZERO(&fdread);
FD_ZERO(&fdwrite);
FD_ZERO(&fdexcep);
timeout.tv_sec = 1;
timeout.tv_usec = 0;
multi_fdset(m, &fdread, &fdwrite, &fdexcep, &maxfd);
select_test(maxfd + 1, &fdread, &fdwrite, &fdexcep, &timeout);
abort_on_test_timeout();
multi_perform(m, &still_running);
abort_on_test_timeout();
}
do {
msg = curl_multi_info_read(m, &msgs_left);
if(msg && msg->msg == CURLMSG_DONE && msg->easy_handle == curls) {
res = msg->data.result;
break;
}
} while(msg);
test_cleanup:
curl_multi_remove_handle(m, curls);
curl_easy_cleanup(curls);
curl_slist_free_all(resolve_list);
return res;
}
int test(char *URL)
{
CURLM *multi = NULL;
int res = 0;
char *address = libtest_arg2;
char *port = libtest_arg3;
char *path = URL;
char dns_entry[256];
int i;
int count = 2;
msnprintf(dns_entry, sizeof(dns_entry), "testserver.example.com:%s:%s",
port, address);
start_test_timing();
global_init(CURL_GLOBAL_ALL);
multi_init(multi);
for(i = 1; i <= count; i++) {
char target_url[256];
msnprintf(target_url, sizeof(target_url),
"http://testserver.example.com:%s/%s%04d", port, path, i);
/* second request must succeed like the first one */
res = do_one_request(multi, target_url, dns_entry);
if(res)
goto test_cleanup;
if(i < count)
sleep(DNS_TIMEOUT + 1);
}
test_cleanup:
curl_multi_cleanup(multi);
curl_global_cleanup();
return (int) res;
}
|
