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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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.\" * Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
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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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.\" * are also available at https://curl.se/docs/copyright.html.
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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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.\" **************************************************************************
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.\"
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.TH CURLOPT_HAPROXYPROTOCOL 3 "5 Feb 2018" "libcurl 7.60.0" "curl_easy_setopt options"
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.SH NAME
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CURLOPT_HAPROXYPROTOCOL \- send HAProxy PROXY protocol v1 header
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.SH SYNOPSIS
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#include <curl/curl.h>
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CURLcode curl_easy_setopt(CURL *handle, CURLOPT_HAPROXYPROTOCOL,
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long haproxy_protocol);
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.SH DESCRIPTION
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A long parameter set to 1 tells the library to send an HAProxy PROXY
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protocol v1 header at beginning of the connection. The default action is not to
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send this header.
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This option is primarily useful when sending test requests to a service that
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expects this header.
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Most applications do not need this option.
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.SH DEFAULT
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0, do not send any HAProxy PROXY protocol header
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.SH PROTOCOLS
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HTTP
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.SH EXAMPLE
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.nf
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CURL *curl = curl_easy_init();
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if(curl) {
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CURLcode ret;
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curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
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curl_easy_setopt(curl, CURLOPT_HAPROXYPROTOCOL, 1L);
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ret = curl_easy_perform(curl);
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}
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.fi
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.SH AVAILABILITY
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Along with HTTP. Added in 7.60.0.
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.SH RETURN VALUE
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Returns CURLE_OK if HTTP is enabled, and CURLE_UNKNOWN_OPTION if not.
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