/*************************************************************************** * _ _ ____ _ * Project ___| | | | _ \| | * / __| | | | |_) | | * | (__| |_| | _ <| |___ * \___|\___/|_| \_\_____| * * Copyright (C) 1998 - 2021, Daniel Stenberg, , 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. * ***************************************************************************/ #include "test.h" #include "memdebug.h" int test(char *URL) { CURLM *multi; CURL *easy; int running_handles; curl_global_init(CURL_GLOBAL_DEFAULT); multi = curl_multi_init(); if(multi) { easy = curl_easy_init(); if(easy) { CURLcode c; CURLMcode m; /* Crash only happens when using HTTPS */ c = curl_easy_setopt(easy, CURLOPT_URL, URL); if(!c) /* Any old HTTP tunneling proxy will do here */ c = curl_easy_setopt(easy, CURLOPT_PROXY, libtest_arg2); if(!c) { /* We're going to drive the transfer using multi interface here, because we want to stop during the middle. */ m = curl_multi_add_handle(multi, easy); if(!m) /* Run the multi handle once, just enough to start establishing an HTTPS connection. */ m = curl_multi_perform(multi, &running_handles); if(m) fprintf(stderr, "curl_multi_perform failed\n"); } /* Close the easy handle *before* the multi handle. Doing it the other way around avoids the issue. */ curl_easy_cleanup(easy); } curl_multi_cleanup(multi); /* double-free happens here */ } curl_global_cleanup(); return CURLE_OK; }