Return to imap-ssl.c CVS log

Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / curl / docs / examples

curl

    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: 
   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 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: }