1/***************************************************************************
2 *                                  _   _ ____  _
3 *  Project                     ___| | | |  _ \| |
4 *                             / __| | | | |_) | |
5 *                            | (__| |_| |  _ <| |___
6 *                             \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) 1998 - 2016, 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 * IMAP 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 fetch mail using libcurl's IMAP
32 * capabilities. It builds on the imap-fetch.c example adding transport
33 * security to protect the authentication details from being snooped.
34 *
35 * Note that this example requires libcurl 7.30.0 or above.
36 */
37
38int 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 fetch message 1 from the user's inbox. Note the use of
50    * imaps:// rather than imap:// to request a SSL based connection. */
51    curl_easy_setopt(curl, CURLOPT_URL,
52                     "imaps://imap.example.com/INBOX/;UID=1");
53
54    /* If you want to connect to a site who isn't using a certificate that is
55     * signed by one of the certs in the CA bundle you have, you can skip the
56     * verification of the server's certificate. This makes the connection
57     * A LOT LESS SECURE.
58     *
59     * If you have a CA cert for the server stored someplace else than in the
60     * default bundle, then the CURLOPT_CAPATH option might come handy for
61     * you. */
62#ifdef SKIP_PEER_VERIFICATION
63    curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
64#endif
65
66    /* If the site you're connecting to uses a different host name that what
67     * they have mentioned in their server certificate's commonName (or
68     * subjectAltName) fields, libcurl will refuse to connect. You can skip
69     * this check, but this will make the connection less secure. */
70#ifdef SKIP_HOSTNAME_VERIFICATION
71    curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L);
72#endif
73
74    /* Since the traffic will be encrypted, it is very useful to turn on debug
75     * information within libcurl to see what is happening during the
76     * transfer */
77    curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
78
79    /* Perform the fetch */
80    res = curl_easy_perform(curl);
81
82    /* Check for errors */
83    if(res != CURLE_OK)
84      fprintf(stderr, "curl_easy_perform() failed: %s\n",
85              curl_easy_strerror(res));
86
87    /* Always cleanup */
88    curl_easy_cleanup(curl);
89  }
90
91  return (int)res;
92}
93