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- /***************************************************************************
- * _ _ ____ _
- * Project ___| | | | _ \| |
- * / __| | | | |_) | |
- * | (__| |_| | _ <| |___
- * \___|\___/|_| \_\_____|
- *
- * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
- *
- * This software is licensed as described in the file COPYING, which
- * you should have received as part of this distribution. The terms
- * are also available at https://curl.se/docs/copyright.html.
- *
- * You may opt to use, copy, modify, merge, publish, distribute and/or sell
- * copies of the Software, and permit persons to whom the Software is
- * furnished to do so, under the terms of the COPYING file.
- *
- * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
- * KIND, either express or implied.
- *
- * SPDX-License-Identifier: curl
- *
- ***************************************************************************/
- /* <DESC>
- * Get POP3 email using implicit SSL
- * </DESC>
- */
- #include <stdio.h>
- #include <curl/curl.h>
- /* This is a simple example showing how to retrieve mail using libcurl's POP3
- * capabilities. It builds on the pop3-retr.c example adding transport
- * security to protect the authentication details from being snooped.
- *
- * Note that this example requires libcurl 7.20.0 or above.
- */
- int main(void)
- {
- CURL *curl;
- CURLcode res = CURLE_OK;
- curl = curl_easy_init();
- if(curl) {
- /* Set username and password */
- curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
- curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
- /* This retrieves message 1 from the user's mailbox. Note the use of
- * pop3s:// rather than pop3:// to request a SSL based connection. */
- curl_easy_setopt(curl, CURLOPT_URL, "pop3s://pop.example.com/1");
- /* If you want to connect to a site who is not using a certificate that is
- * signed by one of the certs in the CA bundle you have, you can skip the
- * verification of the server's certificate. This makes the connection
- * A LOT LESS SECURE.
- *
- * If you have a CA cert for the server stored someplace else than in the
- * default bundle, then the CURLOPT_CAPATH option might come handy for
- * you. */
- #ifdef SKIP_PEER_VERIFICATION
- curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
- #endif
- /* If the site you are connecting to uses a different host name that what
- * they have mentioned in their server certificate's commonName (or
- * subjectAltName) fields, libcurl refuses to connect. You can skip this
- * check, but it makes the connection insecure. */
- #ifdef SKIP_HOSTNAME_VERIFICATION
- curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L);
- #endif
- /* Since the traffic is encrypted, it is useful to turn on debug
- * information within libcurl to see what is happening during the
- * transfer */
- curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
- /* Perform the retr */
- res = curl_easy_perform(curl);
- /* Check for errors */
- if(res != CURLE_OK)
- fprintf(stderr, "curl_easy_perform() failed: %s\n",
- curl_easy_strerror(res));
- /* Always cleanup */
- curl_easy_cleanup(curl);
- }
- return (int)res;
- }
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