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certinfo.c

Download certinfo.c

/***************************************************************************
 *                                  _   _ ____  _
 *  Project                     ___| | | |  _ \| |
 *                             / __| | | | |_) | |
 *                            | (__| |_| |  _ <| |___
 *                             \___|\___/|_| \_\_____|
 *
 * Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, 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 http://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 <stdio.h>
 
#include <curl/curl.h>
 
static size_t wrfu(void *ptr,  size_t  size,  size_t  nmemb,  void *stream)
{
  (void)stream;
  (void)ptr;
  return size * nmemb;
}
 
int main(void)
{
  CURL *curl;
  CURLcode res;
 
  curl_global_init(CURL_GLOBAL_DEFAULT);
 
  curl = curl_easy_init();
  if(curl) {
    curl_easy_setopt(curl, CURLOPT_URL, "https://www.example.com/");
 
    curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, wrfu);
 
    curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
    curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L);
 
    curl_easy_setopt(curl, CURLOPT_VERBOSE, 0L);
    curl_easy_setopt(curl, CURLOPT_CERTINFO, 1L);
 
    res = curl_easy_perform(curl);
 
    if(!res) {
      struct curl_certinfo *ci = NULL;
 
      res = curl_easy_getinfo(curl, CURLINFO_CERTINFO, &ci);
 
      if(!res && ci) {
        int i;
        printf("%d certs!\n", ci->num_of_certs);
 
        for(i=0; i<ci->num_of_certs; i++) {
          struct curl_slist *slist;
 
          for(slist = ci->certinfo[i]; slist; slist = slist->next)
            printf("%s\n", slist->data);
 
        }
      }
 
    }
 
 
    curl_easy_cleanup(curl);
  }
 
  curl_global_cleanup();
 
  return 0;
}

You'll also find all examples in the distribution archive, in the docs/examples directory.