153 lines
3.8 KiB
C
153 lines
3.8 KiB
C
/***************************************************************************
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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) 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 https://curl.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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* SPDX-License-Identifier: curl
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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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static int debug_callback(CURL *curl, curl_infotype info, char *msg,
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size_t len, void *ptr)
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{
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(void)curl;
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(void)ptr;
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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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static 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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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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do {
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msg = curl_multi_info_read(m, &msgs_left);
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if(msg && msg->msg == CURLMSG_DONE && msg->easy_handle == curls) {
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res = msg->data.result;
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break;
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}
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} while(msg);
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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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msnprintf(dns_entry, sizeof(dns_entry), "testserver.example.com:%s:%s",
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port, address);
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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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char target_url[256];
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msnprintf(target_url, sizeof(target_url),
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"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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res = do_one_request(multi, target_url, dns_entry);
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if(res)
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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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curl_global_cleanup();
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return (int) res;
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}
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