xref: /curl/tests/libtest/lib504.c (revision cbbf4d8e)
1 /***************************************************************************
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7  *
8  * Copyright (C) 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.
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18  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19  * KIND, either express or implied.
20  *
21  * SPDX-License-Identifier: curl
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23  ***************************************************************************/
24 #include "test.h"
25 
26 #include "testutil.h"
27 #include "warnless.h"
28 #include "memdebug.h"
29 
30 #define TEST_HANG_TIMEOUT 60 * 1000
31 
32 /*
33  * Source code in here hugely as reported in bug report 651464 by
34  * Christopher R. Palmer.
35  *
36  * Use multi interface to get document over proxy with bad port number.
37  * This caused the interface to "hang" in libcurl 7.10.2.
38  */
test(char * URL)39 CURLcode test(char *URL)
40 {
41   CURL *c = NULL;
42   CURLcode res = CURLE_OK;
43   CURLM *m = NULL;
44   fd_set rd, wr, exc;
45   int running;
46 
47   start_test_timing();
48 
49   global_init(CURL_GLOBAL_ALL);
50 
51   easy_init(c);
52 
53   /* The point here is that there must not be anything running on the given
54      proxy port */
55   if(libtest_arg2)
56     easy_setopt(c, CURLOPT_PROXY, libtest_arg2);
57   easy_setopt(c, CURLOPT_URL, URL);
58   easy_setopt(c, CURLOPT_VERBOSE, 1L);
59 
60   multi_init(m);
61 
62   multi_add_handle(m, c);
63 
64   for(;;) {
65     struct timeval interval;
66     int maxfd = -99;
67 
68     interval.tv_sec = 1;
69     interval.tv_usec = 0;
70 
71     fprintf(stderr, "curl_multi_perform()\n");
72 
73     multi_perform(m, &running);
74 
75     while(running) {
76       CURLMcode mres;
77       int num;
78       mres = curl_multi_wait(m, NULL, 0, TEST_HANG_TIMEOUT, &num);
79       if(mres != CURLM_OK) {
80         printf("curl_multi_wait() returned %d\n", mres);
81         res = TEST_ERR_MAJOR_BAD;
82         goto test_cleanup;
83       }
84 
85       abort_on_test_timeout();
86       multi_perform(m, &running);
87       abort_on_test_timeout();
88     }
89 
90     abort_on_test_timeout();
91 
92     if(!running) {
93       /* This is where this code is expected to reach */
94       int numleft;
95       CURLMsg *msg = curl_multi_info_read(m, &numleft);
96       fprintf(stderr, "Expected: not running\n");
97       if(msg && !numleft)
98         res = TEST_ERR_SUCCESS; /* this is where we should be */
99       else
100         res = TEST_ERR_FAILURE; /* not correct */
101       break; /* done */
102     }
103     fprintf(stderr, "running == %d\n", running);
104 
105     FD_ZERO(&rd);
106     FD_ZERO(&wr);
107     FD_ZERO(&exc);
108 
109     fprintf(stderr, "curl_multi_fdset()\n");
110 
111     multi_fdset(m, &rd, &wr, &exc, &maxfd);
112 
113     /* At this point, maxfd is guaranteed to be greater or equal than -1. */
114 
115     select_test(maxfd + 1, &rd, &wr, &exc, &interval);
116 
117     abort_on_test_timeout();
118   }
119 
120 test_cleanup:
121 
122   /* proper cleanup sequence - type PA */
123 
124   curl_multi_remove_handle(m, c);
125   curl_multi_cleanup(m);
126   curl_easy_cleanup(c);
127   curl_global_cleanup();
128 
129   return res;
130 }
131