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Diffstat (limited to 'docs/libcurl/opts/GNURLOPT_DNS_INTERFACE.3')
| -rw-r--r-- | docs/libcurl/opts/GNURLOPT_DNS_INTERFACE.3 | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/docs/libcurl/opts/GNURLOPT_DNS_INTERFACE.3 b/docs/libcurl/opts/GNURLOPT_DNS_INTERFACE.3 new file mode 100644 index 000000000..9d3426326 --- /dev/null +++ b/docs/libcurl/opts/GNURLOPT_DNS_INTERFACE.3 @@ -0,0 +1,59 @@ +.\" ************************************************************************** +.\" * _ _ ____ _ +.\" * Project ___| | | | _ \| | +.\" * / __| | | | |_) | | +.\" * | (__| |_| | _ <| |___ +.\" * \___|\___/|_| \_\_____| +.\" * +.\" * Copyright (C) 1998 - 2017, 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.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. +.\" * +.\" ************************************************************************** +.\" +.TH GNURLOPT_DNS_INTERFACE 3 "19 Jun 2014" "libcurl 7.37.0" "curl_easy_setopt options" +.SH NAME +CURLOPT_DNS_INTERFACE \- set interface to speak DNS over +.SH SYNOPSIS +#include <gnurl/curl.h> + +CURLcode curl_easy_setopt(CURL *handle, CURLOPT_DNS_INTERFACE, char *ifname); +.SH DESCRIPTION +Pass a char * as parameter. Set the name of the network interface that the DNS +resolver should bind to. This must be an interface name (not an address). Set +this option to NULL to use the default setting (don't bind to a specific +interface). + +The application does not have to keep the string around after setting this +option. +.SH DEFAULT +NULL +.SH PROTOCOLS +.SH EXAMPLE +.nf +CURL *curl = curl_easy_init(); +if(curl) { + curl_easy_setopt(curl, CURLOPT_URL, "http://example.com/foo.bin"); + curl_easy_setopt(curl, CURLOPT_DNS_INTERFACE, "eth0"); + ret = curl_easy_perform(curl); + curl_easy_cleanup(curl); +} +.fi +.SH AVAILABILITY +Added in 7.33.0. This option also requires that libcurl was built with a +resolver backend that supports this operation. The c-ares backend is the only +such one. +.SH RETURN VALUE +Returns CURLE_OK if the option is supported, CURLE_UNKNOWN_OPTION if not, +or CURLE_NOT_BUILT_IN if support was disabled at compile-time. +.SH "SEE ALSO" +.BR CURLOPT_DNS_SERVERS "(3), " CURLOPT_DNS_LOCAL_IP4 "(3), " |