Annotation of embedaddon/curl/docs/libcurl/opts/CURLOPT_DNS_INTERFACE.3, revision 1.1.1.1
1.1 misho 1: .\" **************************************************************************
2: .\" * _ _ ____ _
3: .\" * Project ___| | | | _ \| |
4: .\" * / __| | | | |_) | |
5: .\" * | (__| |_| | _ <| |___
6: .\" * \___|\___/|_| \_\_____|
7: .\" *
8: .\" * Copyright (C) 1998 - 2017, 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.haxx.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: .\" **************************************************************************
22: .\"
23: .TH CURLOPT_DNS_INTERFACE 3 "May 31, 2017" "libcurl 7.70.0" "curl_easy_setopt options"
24:
25: .SH NAME
26: CURLOPT_DNS_INTERFACE \- set interface to speak DNS over
27: .SH SYNOPSIS
28: #include <curl/curl.h>
29:
30: CURLcode curl_easy_setopt(CURL *handle, CURLOPT_DNS_INTERFACE, char *ifname);
31: .SH DESCRIPTION
32: Pass a char * as parameter. Set the name of the network interface that the DNS
33: resolver should bind to. This must be an interface name (not an address). Set
34: this option to NULL to use the default setting (don't bind to a specific
35: interface).
36:
37: The application does not have to keep the string around after setting this
38: option.
39: .SH DEFAULT
40: NULL
41: .SH PROTOCOLS
42: .SH EXAMPLE
43: .nf
44: CURL *curl = curl_easy_init();
45: if(curl) {
46: curl_easy_setopt(curl, CURLOPT_URL, "http://example.com/foo.bin");
47: curl_easy_setopt(curl, CURLOPT_DNS_INTERFACE, "eth0");
48: ret = curl_easy_perform(curl);
49: curl_easy_cleanup(curl);
50: }
51: .fi
52: .SH AVAILABILITY
53: Added in 7.33.0. This option also requires that libcurl was built with a
54: resolver backend that supports this operation. The c-ares backend is the only
55: such one.
56: .SH RETURN VALUE
57: Returns CURLE_OK if the option is supported, CURLE_UNKNOWN_OPTION if not,
58: or CURLE_NOT_BUILT_IN if support was disabled at compile-time.
59: .SH "SEE ALSO"
60: .BR CURLOPT_DNS_SERVERS "(3), " CURLOPT_DNS_LOCAL_IP4 "(3), "
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>