/*************************************************************************** * _ _ ____ _ * Project ___| | | | _ \| | * / __| | | | |_) | | * | (__| |_| | _ <| |___ * \___|\___/|_| \_\_____| * * Copyright (C) 1998 - 2011, 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> int main(void) { CURL *curl; CURLcode res; struct curl_slist *recipients = NULL; /* value for envelope reverse-path */ static const char *from = "<bradh@example.com>"; /* this becomes the envelope forward-path */ static const char *to = "<bradh@example.net>"; curl = curl_easy_init(); if(curl) { /* this is the URL for your mailserver - you can also use an smtps:// URL * here */ curl_easy_setopt(curl, CURLOPT_URL, "smtp://mail.example.net."); /* Note that this option isn't strictly required, omitting it will result in * libcurl will sent the MAIL FROM command with no sender data. All * autoresponses should have an empty reverse-path, and should be directed * to the address in the reverse-path which triggered them. Otherwise, they * could cause an endless loop. See RFC 5321 Section 4.5.5 for more details. */ curl_easy_setopt(curl, CURLOPT_MAIL_FROM, from); /* Note that the CURLOPT_MAIL_RCPT takes a list, not a char array. */ recipients = curl_slist_append(recipients, to); curl_easy_setopt(curl, CURLOPT_MAIL_RCPT, recipients); /* You provide the payload (headers and the body of the message) as the * "data" element. There are two choices, either: * - provide a callback function and specify the function name using the * CURLOPT_READFUNCTION option; or * - just provide a FILE pointer that can be used to read the data from. * The easiest case is just to read from standard input, (which is available * as a FILE pointer) as shown here. */ curl_easy_setopt(curl, CURLOPT_READDATA, stdin); /* send the message (including headers) */ res = curl_easy_perform(curl); /* 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 messages (setting * CURLOPT_MAIL_FROM and CURLOPT_MAIL_RCPT as required, and calling * curl_easy_perform() again. 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; }