imap-ssl.c revision e6cd738ed3716c02557fb3a47515244e949ade39 
1/***************************************************************************
2 *                                  _   _ ____  _
3 *  Project                     ___| | | |  _ \| |
4 *                             / __| | | | |_) | |
5 *                            | (__| |_| |  _ <| |___
6 *                             \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) 1998 - 2014, 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 http://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#include <stdio.h>
23#include <curl/curl.h>
24
25/* This is a simple example showing how to fetch mail using libcurl's IMAP
26 * capabilities. It builds on the imap-fetch.c example adding transport
27 * security to protect the authentication details from being snooped.
28 *
29 * Note that this example requires libcurl 7.30.0 or above.
30 */
31
32int main(void)
33{
34  CURL *curl;
35  CURLcode res = CURLE_OK;
36
37  curl = curl_easy_init();
38  if(curl) {
39    /* Set username and password */
40    curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
41    curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
42
43    /* This will fetch message 1 from the user's inbox. Note the use of
44    * imaps:// rather than imap:// to request a SSL based connection. */
45    curl_easy_setopt(curl, CURLOPT_URL, "imaps://imap.example.com/INBOX/;UID=1");
46
47    /* If you want to connect to a site who isn't using a certificate that is
48     * signed by one of the certs in the CA bundle you have, you can skip the
49     * verification of the server's certificate. This makes the connection
50     * A LOT LESS SECURE.
51     *
52     * If you have a CA cert for the server stored someplace else than in the
53     * default bundle, then the CURLOPT_CAPATH option might come handy for
54     * you. */
55#ifdef SKIP_PEER_VERIFICATION
56    curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
57#endif
58
59    /* If the site you're connecting to uses a different host name that what
60     * they have mentioned in their server certificate's commonName (or
61     * subjectAltName) fields, libcurl will refuse to connect. You can skip
62     * this check, but this will make the connection less secure. */
63#ifdef SKIP_HOSTNAME_VERIFICATION
64    curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L);
65#endif
66
67    /* Since the traffic will be encrypted, it is very useful to turn on debug
68     * information within libcurl to see what is happening during the
69     * transfer */
70    curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
71
72    /* Perform the fetch */
73    res = curl_easy_perform(curl);
74
75    /* Check for errors */
76    if(res != CURLE_OK)
77      fprintf(stderr, "curl_easy_perform() failed: %s\n",
78              curl_easy_strerror(res));
79
80    /* Always cleanup */
81    curl_easy_cleanup(curl);
82  }
83
84  return (int)res;
85}
86