1/*************************************************************************** 2 * _ _ ____ _ 3 * Project ___| | | | _ \| | 4 * / __| | | | |_) | | 5 * | (__| |_| | _ <| |___ 6 * \___|\___/|_| \_\_____| 7 * 8 * Copyright (C) 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.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 * SPDX-License-Identifier: curl 22 * 23 ***************************************************************************/ 24 25/* <DESC> 26 * IMAP with implicit SSL 27 * </DESC> 28 */ 29 30#include <stdio.h> 31#include <curl/curl.h> 32 33/* This is a simple example showing how to fetch mail using libcurl's IMAP 34 * capabilities. It builds on the imap-fetch.c example adding transport 35 * security to protect the authentication details from being snooped. 36 * 37 * Note that this example requires libcurl 7.30.0 or above. 38 */ 39 40int main(void) 41{ 42 CURL *curl; 43 CURLcode res = CURLE_OK; 44 45 curl = curl_easy_init(); 46 if(curl) { 47 /* Set username and password */ 48 curl_easy_setopt(curl, CURLOPT_USERNAME, "user"); 49 curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret"); 50 51 /* This will fetch message 1 from the user's inbox. Note the use of 52 * imaps:// rather than imap:// to request a SSL based connection. */ 53 curl_easy_setopt(curl, CURLOPT_URL, 54 "imaps://imap.example.com/INBOX/;UID=1"); 55 56 /* If you want to connect to a site who is not using a certificate that is 57 * signed by one of the certs in the CA bundle you have, you can skip the 58 * verification of the server's certificate. This makes the connection 59 * A LOT LESS SECURE. 60 * 61 * If you have a CA cert for the server stored someplace else than in the 62 * default bundle, then the CURLOPT_CAPATH option might come handy for 63 * you. */ 64#ifdef SKIP_PEER_VERIFICATION 65 curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L); 66#endif 67 68 /* If the site you are connecting to uses a different host name that what 69 * they have mentioned in their server certificate's commonName (or 70 * subjectAltName) fields, libcurl will refuse to connect. You can skip 71 * this check, but this will make the connection less secure. */ 72#ifdef SKIP_HOSTNAME_VERIFICATION 73 curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L); 74#endif 75 76 /* Since the traffic will be encrypted, it is useful to turn on debug 77 * information within libcurl to see what is happening during the 78 * transfer */ 79 curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L); 80 81 /* Perform the fetch */ 82 res = curl_easy_perform(curl); 83 84 /* Check for errors */ 85 if(res != CURLE_OK) 86 fprintf(stderr, "curl_easy_perform() failed: %s\n", 87 curl_easy_strerror(res)); 88 89 /* Always cleanup */ 90 curl_easy_cleanup(curl); 91 } 92 93 return (int)res; 94} 95