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comparison mupdf-source/thirdparty/curl/docs/examples/pop3-ssl.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 - 2015, 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
23 /* <DESC>
24 * POP3 example using SSL
25 * </DESC>
26 */
27
28 #include <stdio.h>
29 #include <curl/curl.h>
30
31 /* This is a simple example showing how to retrieve mail using libcurl's POP3
32 * capabilities. It builds on the pop3-retr.c example adding transport
33 * security to protect the authentication details from being snooped.
34 *
35 * Note that this example requires libcurl 7.20.0 or above.
36 */
37
38 int main(void)
39 {
40 CURL *curl;
41 CURLcode res = CURLE_OK;
42
43 curl = curl_easy_init();
44 if(curl) {
45 /* Set username and password */
46 curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
47 curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
48
49 /* This will retrieve message 1 from the user's mailbox. Note the use of
50 * pop3s:// rather than pop3:// to request a SSL based connection. */
51 curl_easy_setopt(curl, CURLOPT_URL, "pop3s://pop.example.com/1");
52
53 /* If you want to connect to a site who isn't using a certificate that is
54 * signed by one of the certs in the CA bundle you have, you can skip the
55 * verification of the server's certificate. This makes the connection
56 * A LOT LESS SECURE.
57 *
58 * If you have a CA cert for the server stored someplace else than in the
59 * default bundle, then the CURLOPT_CAPATH option might come handy for
60 * you. */
61 #ifdef SKIP_PEER_VERIFICATION
62 curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
63 #endif
64
65 /* If the site you're connecting to uses a different host name that what
66 * they have mentioned in their server certificate's commonName (or
67 * subjectAltName) fields, libcurl will refuse to connect. You can skip
68 * this check, but this will make the connection less secure. */
69 #ifdef SKIP_HOSTNAME_VERIFICATION
70 curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L);
71 #endif
72
73 /* Since the traffic will be encrypted, it is very useful to turn on debug
74 * information within libcurl to see what is happening during the
75 * transfer */
76 curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
77
78 /* Perform the retr */
79 res = curl_easy_perform(curl);
80
81 /* Check for errors */
82 if(res != CURLE_OK)
83 fprintf(stderr, "curl_easy_perform() failed: %s\n",
84 curl_easy_strerror(res));
85
86 /* Always cleanup */
87 curl_easy_cleanup(curl);
88 }
89
90 return (int)res;
91 }