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comparison mupdf-source/thirdparty/curl/docs/examples/sslbackend.c @ 2:b50eed0cc0ef upstream

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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
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1:1d09e1dec1d9 2:b50eed0cc0ef
1 /***************************************************************************
2 * _ _ ____ _
3 * Project ___| | | | _ \| |
4 * / __| | | | |_) | |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
9 *
10 * This software is licensed as described in the file COPYING, which
11 * you should have received as part of this distribution. The terms
12 * are also available at https://curl.haxx.se/docs/copyright.html.
13 *
14 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
15 * copies of the Software, and permit persons to whom the Software is
16 * furnished to do so, under the terms of the COPYING file.
17 *
18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19 * KIND, either express or implied.
20 *
21 ***************************************************************************/
22 /* <DESC>
23 * Shows HTTPS usage with client certs and optional ssl engine use.
24 * </DESC>
25 */
26 #include <assert.h>
27 #include <ctype.h>
28 #include <stdio.h>
29 #include <stdlib.h>
30 #include <string.h>
31
32 #include <curl/curl.h>
33
34 /*
35 * An SSL-enabled libcurl is required for this sample to work (at least one
36 * SSL backend has to be configured).
37 *
38 * **** This example only works with libcurl 7.56.0 and later! ****
39 */
40
41 int main(int argc, char **argv)
42 {
43 const char *name = argc > 1 ? argv[1] : "openssl";
44 CURLsslset result;
45
46 if(!strcmp("list", name)) {
47 const curl_ssl_backend **list;
48 int i;
49
50 result = curl_global_sslset(-1, NULL, &list);
51 assert(result == CURLSSLSET_UNKNOWN_BACKEND);
52
53 for(i = 0; list[i]; i++)
54 printf("SSL backend #%d: '%s' (ID: %d)\n",
55 i, list[i]->name, list[i]->id);
56
57 return 0;
58 }
59 else if(isdigit(*name)) {
60 int id = atoi(name);
61
62 result = curl_global_sslset((curl_sslbackend)id, NULL, NULL);
63 }
64 else
65 result = curl_global_sslset(-1, name, NULL);
66
67 if(result == CURLSSLSET_UNKNOWN_BACKEND) {
68 fprintf(stderr, "Unknown SSL backend id: %s\n", name);
69 return 1;
70 }
71
72 assert(result == CURLSSLSET_OK);
73
74 printf("Version with SSL backend '%s':\n\n\t%s\n", name, curl_version());
75
76 return 0;
77 }