2014-06-20 06:58:18 +08:00
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.\" **************************************************************************
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.\" * _ _ ____ _
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.\" * Project ___| | | | _ \| |
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.\" * / __| | | | |_) | |
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.\" * | (__| |_| | _ <| |___
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.\" * \___|\___/|_| \_\_____|
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.\" *
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2023-01-02 20:51:48 +08:00
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.\" * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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2014-06-20 06:58:18 +08:00
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.\" *
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.\" * This software is licensed as described in the file COPYING, which
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.\" * you should have received as part of this distribution. The terms
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2020-11-04 21:02:01 +08:00
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.\" * are also available at https://curl.se/docs/copyright.html.
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2014-06-20 06:58:18 +08:00
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.\" *
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.\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell
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.\" * copies of the Software, and permit persons to whom the Software is
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.\" * furnished to do so, under the terms of the COPYING file.
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.\" *
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.\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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.\" * KIND, either express or implied.
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.\" *
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.\" * SPDX-License-Identifier: curl
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2022-05-17 17:16:50 +08:00
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.\" *
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2014-06-20 06:58:18 +08:00
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.\" **************************************************************************
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.\"
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2023-04-26 14:58:35 +08:00
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.TH CURLOPT_DNS_LOCAL_IP6 3 "19 Jun 2014" libcurl libcurl
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2014-06-20 06:58:18 +08:00
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.SH NAME
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2014-06-20 07:10:34 +08:00
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CURLOPT_DNS_LOCAL_IP6 \- IPv6 address to bind DNS resolves to
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2014-06-20 06:58:18 +08:00
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.SH SYNOPSIS
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2021-11-26 21:20:18 +08:00
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.nf
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2014-06-20 06:58:18 +08:00
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#include <curl/curl.h>
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CURLcode curl_easy_setopt(CURL *handle, CURLOPT_DNS_LOCAL_IP6, char *address);
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2021-11-26 21:20:18 +08:00
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.fi
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2014-06-20 06:58:18 +08:00
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.SH DESCRIPTION
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Set the local IPv6 \fIaddress\fP that the resolver should bind to. The
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argument should be of type char * and contain a single IPv6 address as a
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2021-10-31 23:34:44 +08:00
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string. Set this option to NULL to use the default setting (do not bind to a
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2014-06-20 06:58:18 +08:00
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specific IP address).
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2016-12-21 21:48:35 +08:00
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The application does not have to keep the string around after setting this
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option.
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2014-06-20 06:58:18 +08:00
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.SH DEFAULT
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NULL
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.SH PROTOCOLS
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All
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.SH EXAMPLE
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2017-05-31 17:56:28 +08:00
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.nf
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CURL *curl = curl_easy_init();
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if(curl) {
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2020-09-17 05:04:07 +08:00
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curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/foo.bin");
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2017-05-31 17:56:28 +08:00
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curl_easy_setopt(curl, CURLOPT_DNS_LOCAL_IP6, "fe80::a9ff:fe46:b619");
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ret = curl_easy_perform(curl);
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curl_easy_cleanup(curl);
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}
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.fi
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2014-06-20 06:58:18 +08:00
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.SH AVAILABILITY
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This option requires that libcurl was built with a resolver backend that
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supports this operation. The c-ares backend is the only such one.
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Added in 7.33.0
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.SH RETURN VALUE
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2014-06-21 05:43:26 +08:00
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Returns CURLE_OK if the option is supported, CURLE_UNKNOWN_OPTION if not,
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CURLE_NOT_BUILT_IN if support was disabled at compile-time, or
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CURLE_BAD_FUNCTION_ARGUMENT when given a bad address.
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2014-06-20 06:58:18 +08:00
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.SH "SEE ALSO"
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.BR CURLOPT_DNS_INTERFACE "(3), " CURLOPT_DNS_LOCAL_IP4 "(3), "
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