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tests: add test for bug #1303 (dns cache timeout)
Test-case 1515 reproduces bug #1303, where libcurl would incorrectly prune DNS entries added via CURLOPT_RESOLVE after the DNS_CACHE_TIMEOUT had expired.
This commit is contained in:
Romulo A. Ceccon
Daniel Stenberg
parent
b93755df37
commit
1505e4612b
@ -123,7 +123,7 @@ test1408 test1409 test1410 test1412 test1413 test1414 test1415 \
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test1416 test1417 \
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\
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test1500 test1501 test1502 test1503 test1504 test1505 test1506 test1507 \
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test1508 test1509 test1510 test1511 test1512 test1513 test1514 \
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test1508 test1509 test1510 test1511 test1512 test1513 test1514 test1515 \
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\
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test1900 test1901 test1902 test1903 \
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\
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58
tests/data/test1515
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58
tests/data/test1515
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@ -0,0 +1,58 @@
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<testcase>
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<info>
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<keywords>
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HTTP
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multi
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FAILURE
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resolve
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</keywords>
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</info>
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<reply>
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# Close the connection after the first request. Second request will happen after
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# the DNS cache timeout elapses and must succeed exactly like the first one.
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<data1>
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HTTP/1.1 200 OK
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Date: Thu, 03 Feb 2014 17:04:00 GMT
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Server: test-server/fake swsclose
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Connection: close
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Content-Type: text/html
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Content-Length: 6
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hello
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</data1>
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<data2>
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HTTP/1.1 200 OK
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Date: Thu, 03 Feb 2014 17:04:02 GMT
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Server: test-server/fake swsclose
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Connection: close
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Content-Type: text/html
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Content-Length: 6
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hello
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</data2>
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</reply>
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<client>
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<server>
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http
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</server>
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<tool>
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lib1515
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</tool>
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<name>
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caching of manual libcurl DNS entries after DNS cache timeout
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</name>
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<command>
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/path/1515 %HOSTIP %HTTPPORT
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</command>
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</client>
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<verify>
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<errorcode>
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0
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</errorcode>
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</verify>
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</testcase>
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@ -21,7 +21,7 @@ noinst_PROGRAMS = chkhostname libauthretry libntlmconnect \
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lib571 lib572 lib573 lib574 lib575 lib576 lib578 lib579 lib582 \
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lib583 lib585 lib586 lib587 lib590 lib591 lib597 lib598 lib599 \
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lib1500 lib1501 lib1502 lib1503 lib1504 lib1505 lib1506 lib1507 lib1508 \
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lib1509 lib1510 lib1511 lib1512 lib1513 lib1514 \
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lib1509 lib1510 lib1511 lib1512 lib1513 lib1514 lib1515 \
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lib1900 \
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lib2033
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@ -351,6 +351,10 @@ lib1514_SOURCES = lib1514.c $(SUPPORTFILES) $(TESTUTIL) $(WARNLESS)
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lib1514_LDADD = $(TESTUTIL_LIBS)
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lib1514_CPPFLAGS = $(AM_CPPFLAGS) -DLIB1514
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lib1515_SOURCES = lib1515.c $(SUPPORTFILES) $(TESTUTIL) $(WARNLESS)
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lib1515_LDADD = $(TESTUTIL_LIBS)
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lib1515_CPPFLAGS = $(AM_CPPFLAGS)
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lib1900_SOURCES = lib1900.c $(SUPPORTFILES) $(TESTUTIL) $(WARNLESS)
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lib1900_LDADD = $(TESTUTIL_LIBS)
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lib1900_CPPFLAGS = $(AM_CPPFLAGS)
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141
tests/libtest/lib1515.c
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141
tests/libtest/lib1515.c
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@ -0,0 +1,141 @@
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/***************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at http://curl.haxx.se/docs/copyright.html.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the COPYING file.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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***************************************************************************/
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/*
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* Check for bugs #1303 and #1327: libcurl should never remove DNS entries
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* created via CURLOPT_RESOLVE, neither after DNS_CACHE_TIMEOUT elapses
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* (test1515) nor a dead connection is detected (test1616).
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*/
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#include "test.h"
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#include "testutil.h"
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#include "warnless.h"
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#include "memdebug.h"
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#define TEST_HANG_TIMEOUT 60 * 1000
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#define DNS_TIMEOUT 1
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int debug_callback(CURL *curl, curl_infotype info, char *msg, size_t len, void *ptr)
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{
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if (info == CURLINFO_TEXT)
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fprintf(stderr, "debug: %.*s", (int) len, msg);
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return 0;
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}
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int do_one_request(CURLM *m, char *URL, char *resolve)
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{
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CURL *curls;
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struct curl_slist *resolve_list = NULL;
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int still_running;
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int res = 0;
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CURLMsg *msg;
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int msgs_left;
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resolve_list = curl_slist_append(resolve_list, resolve);
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easy_init(curls);
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easy_setopt(curls, CURLOPT_URL, URL);
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easy_setopt(curls, CURLOPT_RESOLVE, resolve_list);
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easy_setopt(curls, CURLOPT_DEBUGFUNCTION, debug_callback);
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easy_setopt(curls, CURLOPT_VERBOSE, 1);
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easy_setopt(curls, CURLOPT_DNS_CACHE_TIMEOUT, DNS_TIMEOUT);
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multi_add_handle(m, curls);
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multi_perform(m, &still_running);
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abort_on_test_timeout();
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while (still_running)
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{
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struct timeval timeout;
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fd_set fdread, fdwrite, fdexcep;
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int maxfd = -99;
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FD_ZERO(&fdread);
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FD_ZERO(&fdwrite);
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FD_ZERO(&fdexcep);
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timeout.tv_sec = 1;
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timeout.tv_usec = 0;
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multi_fdset(m, &fdread, &fdwrite, &fdexcep, &maxfd);
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select_test(maxfd+1, &fdread, &fdwrite, &fdexcep, &timeout);
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abort_on_test_timeout();
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multi_perform(m, &still_running);
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abort_on_test_timeout();
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}
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while ((msg = curl_multi_info_read(m, &msgs_left)))
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{
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if (msg->msg == CURLMSG_DONE && msg->easy_handle == curls)
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{
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res = msg->data.result;
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break;
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}
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}
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test_cleanup:
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curl_multi_remove_handle(m, curls);
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curl_easy_cleanup(curls);
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curl_slist_free_all(resolve_list);
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return res;
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}
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int test(char *URL)
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{
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CURLM* multi = NULL;
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int res = 0;
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char *address = libtest_arg2;
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char *port = libtest_arg3;
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char *path = URL;
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char dns_entry[256];
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int i;
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int count = 2;
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snprintf(dns_entry, sizeof(dns_entry), "testserver.example.com:%s:%s", port, address);
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char target_url[256];
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start_test_timing();
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global_init(CURL_GLOBAL_ALL);
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multi_init(multi);
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for (i = 1; i <= count; i++)
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{
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snprintf(target_url, sizeof(target_url), "http://testserver.example.com:%s%s%04d", port, path, i);
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/* second request must succeed like the first one */
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if ((res = do_one_request(multi, target_url, dns_entry)))
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goto test_cleanup;
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if (i < count)
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sleep(DNS_TIMEOUT + 1);
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}
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test_cleanup:
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curl_multi_cleanup(multi);
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return (int) res;
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}
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