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 * POP3 example showing how to retrieve only the headers of an email
27 * </DESC>
28 */
29
30 #include <stdio.h>
31 #include <curl/curl.h>
32
33 /* This is a simple example showing how to retrieve only the headers of a mail
34 * using libcurl's POP3 capabilities.
35 *
36 * Note that this example requires libcurl 7.26.0 or above.
37 */
38
main(void)39 int main(void)
40 {
41 CURL *curl;
42 CURLcode res = CURLE_OK;
43
44 curl = curl_easy_init();
45 if(curl) {
46 /* Set username and password */
47 curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
48 curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
49
50 /* This is just the server URL */
51 curl_easy_setopt(curl, CURLOPT_URL, "pop3://pop.example.com");
52
53 /* Set the TOP command for message 1 to only include the headers */
54 curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "TOP 1 0");
55
56 /* Perform the custom request */
57 res = curl_easy_perform(curl);
58
59 /* Check for errors */
60 if(res != CURLE_OK)
61 fprintf(stderr, "curl_easy_perform() failed: %s\n",
62 curl_easy_strerror(res));
63
64 /* Always cleanup */
65 curl_easy_cleanup(curl);
66 }
67
68 return (int)res;
69 }
70
