/*************************************************************************** * _ _ ____ _ * Project ___| | | | _ \| | * / __| | | | |_) | | * | (__| |_| | _ <| |___ * \___|\___/|_| \_\_____| * * Copyright (C) 1998 - 2014, 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 http://curl.haxx.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. * ***************************************************************************/ #include <stdio.h> #include <string.h> #include <curl/curl.h> /* This is a simple example showing how to expand an email mailing list. * * Notes: * * 1) This example requires libcurl 7.34.0 or above. * 2) Not all email servers support this command. */ int main(void) { CURL *curl; CURLcode res; struct curl_slist *recipients = NULL; curl = curl_easy_init(); if(curl) { /* This is the URL for your mailserver */ curl_easy_setopt(curl, CURLOPT_URL, "smtp://mail.example.com"); /* Note that the CURLOPT_MAIL_RCPT takes a list, not a char array */ recipients = curl_slist_append(recipients, "Friends"); curl_easy_setopt(curl, CURLOPT_MAIL_RCPT, recipients); /* Set the EXPN command */ curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "EXPN"); /* Perform the custom request */ res = curl_easy_perform(curl); /* Check for errors */ if(res != CURLE_OK) fprintf(stderr, "curl_easy_perform() failed: %s\n", curl_easy_strerror(res)); /* Free the list of recipients */ curl_slist_free_all(recipients); /* Curl won't send the QUIT command until you call cleanup, so you should * be able to re-use this connection for additional requests. It may not be * a good idea to keep the connection open for a very long time though * (more than a few minutes may result in the server timing out the * connection) and you do want to clean up in the end. */ curl_easy_cleanup(curl); } return 0; }