xref: /curl/docs/examples/pop3-noop.c (revision 2bc1d775)
1 /***************************************************************************
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8  * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
9  *
10  * This software is licensed as described in the file COPYING, which
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21  * SPDX-License-Identifier: curl
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24 
25 /* <DESC>
26  * Perform a POP3 noop
27  * </DESC>
28  */
29 
30 #include <stdio.h>
31 #include <curl/curl.h>
32 
33 /* This is a simple example showing how to perform a noop using libcurl's POP3
34  * 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 NOOP command */
54     curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "NOOP");
55 
56     /* Do not perform a transfer as NOOP returns no data */
57     curl_easy_setopt(curl, CURLOPT_NOBODY, 1L);
58 
59     /* Perform the custom request */
60     res = curl_easy_perform(curl);
61 
62     /* Check for errors */
63     if(res != CURLE_OK)
64       fprintf(stderr, "curl_easy_perform() failed: %s\n",
65               curl_easy_strerror(res));
66 
67     /* Always cleanup */
68     curl_easy_cleanup(curl);
69   }
70 
71   return (int)res;
72 }
73