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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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