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.\" **************************************************************************
.\" * _ _ ____ _
.\" * Project ___| | | | _ \| |
.\" * / __| | | | |_) | |
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.\" * Copyright (C) 1998 - 2015, 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.
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.\" * copies of the Software, and permit persons to whom the Software is
.\" * furnished to do so, under the terms of the COPYING file.
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.\" * KIND, either express or implied.
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.\" **************************************************************************
.\"
.TH CURLOPT_HEADEROPT 3 "19 Jun 2014" "libcurl 7.37.0" "curl_easy_setopt options"
.SH NAME
CURLOPT_HEADEROPT \- set how to send HTTP headers
.SH SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_HEADEROPT, long bitmask);
.SH DESCRIPTION
Pass a long that is a bitmask of options of how to deal with headers. The two
mutually exclusive options are:
\fBCURLHEADER_UNIFIED\fP - the headers specified in
\fICURLOPT_HTTPHEADER(3)\fP will be used in requests both to servers and
proxies. With this option enabled, \fICURLOPT_PROXYHEADER(3)\fP will not have
any effect.
\fBCURLHEADER_SEPARATE\fP - makes \fICURLOPT_HTTPHEADER(3)\fP headers only get
sent to a server and not to a proxy. Proxy headers must be set with
\fICURLOPT_PROXYHEADER(3)\fP to get used. Note that if a non-CONNECT request
is sent to a proxy, libcurl will send both server headers and proxy
headers. When doing CONNECT, libcurl will send \fICURLOPT_PROXYHEADER(3)\fP
headers only to the proxy and then \fICURLOPT_HTTPHEADER(3)\fP headers only to
the server.
.SH DEFAULT
CURLHEADER_SEPARATE (changed in 7.42.1, ased CURLHEADER_UNIFIED before then)
.SH PROTOCOLS
HTTP
.SH EXAMPLE
TODO
.SH AVAILABILITY
Added in 7.37.0
.SH RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
.SH "SEE ALSO"
.BR CURLOPT_HTTPHEADER "(3), " CURLOPT_PROXYHEADER "(3), "
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