1 /***************************************************************************
2 * _ _ ____ _
3 * Project ___| | | | _ \| |
4 * / __| | | | |_) | |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) 1998 - 2021, 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 ***************************************************************************/
22
23 /* <DESC>
24 * POP3 example using the multi interface
25 * </DESC>
26 */
27
28 #include <stdio.h>
29 #include <string.h>
30 #include <curl/curl.h>
31
32 /* This is a simple example showing how to retrieve mail using libcurl's POP3
33 * capabilities. It builds on the pop3-retr.c example to demonstrate how to use
34 * libcurl's multi interface.
35 */
36
main(void)37 int main(void)
38 {
39 CURL *curl;
40 CURLM *mcurl;
41 int still_running = 1;
42
43 curl_global_init(CURL_GLOBAL_DEFAULT);
44
45 curl = curl_easy_init();
46 if(!curl)
47 return 1;
48
49 mcurl = curl_multi_init();
50 if(!mcurl)
51 return 2;
52
53 /* Set username and password */
54 curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
55 curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
56
57 /* This will retrieve message 1 from the user's mailbox */
58 curl_easy_setopt(curl, CURLOPT_URL, "pop3://pop.example.com/1");
59
60 /* Tell the multi stack about our easy handle */
61 curl_multi_add_handle(mcurl, curl);
62
63 do {
64 CURLMcode mc = curl_multi_perform(mcurl, &still_running);
65
66 if(still_running)
67 /* wait for activity, timeout or "nothing" */
68 mc = curl_multi_poll(mcurl, NULL, 0, 1000, NULL);
69
70 if(mc)
71 break;
72
73 } while(still_running);
74
75 /* Always cleanup */
76 curl_multi_remove_handle(mcurl, curl);
77 curl_multi_cleanup(mcurl);
78 curl_easy_cleanup(curl);
79 curl_global_cleanup();
80
81 return 0;
82 }
83