[Global]: loading init

deps/curl/docs/examples/certinfo.c

@@ -0,0 +1,87 @@
+/***************************************************************************
+ *                                  _   _ ____  _
+ *  Project                     ___| | | |  _ \| |
+ *                             / __| | | | |_) | |
+ *                            | (__| |_| |  _ <| |___
+ *                             \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 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 https://curl.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.
+ *
+ * SPDX-License-Identifier: curl
+ *
+ ***************************************************************************/
+/* <DESC>
+ * Extract lots of TLS certificate info.
+ * </DESC>
+ */
+#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 *certinfo;
+
+      res = curl_easy_getinfo(curl, CURLINFO_CERTINFO, &certinfo);
+
+      if(!res && certinfo) {
+        int i;
+
+        printf("%d certs!\n", certinfo->num_of_certs);
+
+        for(i = 0; i < certinfo->num_of_certs; i++) {
+          struct curl_slist *slist;
+
+          for(slist = certinfo->certinfo[i]; slist; slist = slist->next)
+            printf("%s\n", slist->data);
+
+        }
+      }
+
+    }
+
+    curl_easy_cleanup(curl);
+  }
+
+  curl_global_cleanup();
+
+  return 0;
+}