xref: /curl/docs/examples/pop3-top.c (revision 2bc1d775)
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8  * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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21  * SPDX-License-Identifier: curl
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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