1 /***************************************************************************
2 * _ _ ____ _
3 * Project ___| | | | _ \| |
4 * / __| | | | |_) | |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
9 *
10 * This software is licensed as described in the file COPYING, which
11 * you should have received as part of this distribution. The terms
12 * are also available at https://curl.se/docs/copyright.html.
13 *
14 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
15 * copies of the Software, and permit persons to whom the Software is
16 * furnished to do so, under the terms of the COPYING file.
17 *
18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19 * KIND, either express or implied.
20 *
21 * SPDX-License-Identifier: curl
22 *
23 ***************************************************************************/
24 /* <DESC>
25 * Use CURLOPT_INTERFACE to bind the outgoing socket to an interface
26 * </DESC>
27 */
28 #include <stdio.h>
29 #include <curl/curl.h>
30
main(void)31 int main(void)
32 {
33 CURL *curl;
34 CURLcode res = CURLE_OK;
35
36 curl = curl_easy_init();
37 if(curl) {
38 /* The interface needs to be a local existing interface over which you can
39 connect to the host in the URL. It can also specify an IP address, but
40 that address needs to be assigned one of the local network
41 interfaces. */
42 curl_easy_setopt(curl, CURLOPT_INTERFACE, "enp3s0");
43 curl_easy_setopt(curl, CURLOPT_URL, "https://curl.se/");
44
45 res = curl_easy_perform(curl);
46
47 /* always cleanup */
48 curl_easy_cleanup(curl);
49 }
50
51 return (int)res;
52 }
53
