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https://github.com/moparisthebest/curl
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91 lines
2.4 KiB
C
91 lines
2.4 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) 1998 - 2015, 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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/* <DESC>
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* Extract lots of TLS certificate info.
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* </DESC>
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*/
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#include <stdio.h>
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#include <curl/curl.h>
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static size_t wrfu(void *ptr, size_t size, size_t nmemb, void *stream)
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{
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(void)stream;
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(void)ptr;
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return size * nmemb;
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}
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int main(void)
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{
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CURL *curl;
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CURLcode res;
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curl_global_init(CURL_GLOBAL_DEFAULT);
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curl = curl_easy_init();
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if(curl) {
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curl_easy_setopt(curl, CURLOPT_URL, "https://www.example.com/");
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curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, wrfu);
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curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
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curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L);
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curl_easy_setopt(curl, CURLOPT_VERBOSE, 0L);
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curl_easy_setopt(curl, CURLOPT_CERTINFO, 1L);
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res = curl_easy_perform(curl);
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if(!res) {
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union {
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struct curl_slist *to_info;
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struct curl_certinfo *to_certinfo;
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} ptr;
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ptr.to_info = NULL;
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res = curl_easy_getinfo(curl, CURLINFO_CERTINFO, &ptr.to_info);
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if(!res && ptr.to_info) {
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int i;
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printf("%d certs!\n", ptr.to_certinfo->num_of_certs);
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for(i = 0; i < ptr.to_certinfo->num_of_certs; i++) {
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struct curl_slist *slist;
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for(slist = ptr.to_certinfo->certinfo[i]; slist; slist = slist->next)
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printf("%s\n", slist->data);
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}
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}
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}
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curl_easy_cleanup(curl);
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}
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curl_global_cleanup();
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return 0;
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}
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