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- /***************************************************************************
- * _ _ ____ _
- * 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>
- * Shows HTTPS usage with client certs and optional ssl engine use.
- * </DESC>
- */
- #include <assert.h>
- #include <ctype.h>
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #include <curl/curl.h>
- /*
- * An SSL-enabled libcurl is required for this sample to work (at least one
- * SSL backend has to be configured).
- *
- * **** This example only works with libcurl 7.56.0 and later! ****
- */
- int main(int argc, char **argv)
- {
- const char *name = argc > 1 ? argv[1] : "openssl";
- CURLsslset result;
- if(!strcmp("list", name)) {
- const curl_ssl_backend **list;
- int i;
- result = curl_global_sslset(CURLSSLBACKEND_NONE, NULL, &list);
- assert(result == CURLSSLSET_UNKNOWN_BACKEND);
- for(i = 0; list[i]; i++)
- printf("SSL backend #%d: '%s' (ID: %d)\n",
- i, list[i]->name, list[i]->id);
- return 0;
- }
- else if(isdigit((int)(unsigned char)*name)) {
- int id = atoi(name);
- result = curl_global_sslset((curl_sslbackend)id, NULL, NULL);
- }
- else
- result = curl_global_sslset(CURLSSLBACKEND_NONE, name, NULL);
- if(result == CURLSSLSET_UNKNOWN_BACKEND) {
- fprintf(stderr, "Unknown SSL backend id: %s\n", name);
- return 1;
- }
- assert(result == CURLSSLSET_OK);
- printf("Version with SSL backend '%s':\n\n\t%s\n", name, curl_version());
- return 0;
- }
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