pop3-list.c
/*************************************************************************** * _ _ ____ _ * Project ___| | | | _ \| | * / __| | | | |_) | | * | (__| |_| | _ <| |___ * \___|\___/|_| \_\_____| * * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al. * * This software is licensed as described in the file COPYING, which * you should have received as part of this distribution. The terms * are also available at https://curl.se/docs/copyright.html. * * You may opt to use, copy, modify, merge, publish, distribute and/or sell * copies of the Software, and permit persons to whom the Software is * furnished to do so, under the terms of the COPYING file. * * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY * KIND, either express or implied. * * SPDX-License-Identifier: curl * ***************************************************************************/ /* <DESC> * List the contents of a POP3 mailbox * </DESC> */ #include <stdio.h> #include <curl/curl.h> /* This is a simple example using libcurl's POP3 capabilities to list the * contents of a mailbox. * * Note that this example requires libcurl 7.20.0 or above. */ int main(void) { CURL *curl; CURLcode result = curl_global_init(CURL_GLOBAL_ALL); if(result != CURLE_OK) return (int)result; curl = curl_easy_init(); if(curl) { /* Set username and password */ curl_easy_setopt(curl, CURLOPT_USERNAME, "user"); curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret"); /* This lists every message of the given mailbox */ curl_easy_setopt(curl, CURLOPT_URL, "pop3://pop.example.com"); /* Perform the list */ result = curl_easy_perform(curl); /* Check for errors */ if(result != CURLE_OK) fprintf(stderr, "curl_easy_perform() failed: %s\n", curl_easy_strerror(result)); /* Always cleanup */ curl_easy_cleanup(curl); } curl_global_cleanup(); return (int)result; }
Notice
This source code example is simplified and may ignore return
codes and error checks. We do this to highlight the libcurl function calls and
related options and reduce unrelated code.
A real-world application does of course properly check every return value and exit correctly at the first serious error.