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78 lines
3.1 KiB
78 lines
3.1 KiB
4 months ago
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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 - 2019, 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.haxx.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_HEADEROPT 3 "October 31, 2019" "libcurl 7.73.0" "curl_easy_setopt options"
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.SH NAME
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CURLOPT_HEADEROPT \- set how to send HTTP headers
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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_HEADEROPT, long bitmask);
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.SH DESCRIPTION
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Pass a long that is a bitmask of options of how to deal with headers. The two
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mutually exclusive options are:
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\fBCURLHEADER_UNIFIED\fP - the headers specified in
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\fICURLOPT_HTTPHEADER(3)\fP will be used in requests both to servers and
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proxies. With this option enabled, \fICURLOPT_PROXYHEADER(3)\fP will not have
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any effect.
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\fBCURLHEADER_SEPARATE\fP - makes \fICURLOPT_HTTPHEADER(3)\fP headers only get
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sent to a server and not to a proxy. Proxy headers must be set with
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\fICURLOPT_PROXYHEADER(3)\fP to get used. Note that if a non-CONNECT request
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is sent to a proxy, libcurl will send both server headers and proxy
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headers. When doing CONNECT, libcurl will send \fICURLOPT_PROXYHEADER(3)\fP
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headers only to the proxy and then \fICURLOPT_HTTPHEADER(3)\fP headers only to
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the server.
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.SH DEFAULT
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CURLHEADER_SEPARATE (changed in 7.42.1, used CURLHEADER_UNIFIED before then)
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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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struct curl_slist *list;
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list = curl_slist_append(NULL, "Shoesize: 10");
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list = curl_slist_append(list, "Accept:");
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curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
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curl_easy_setopt(curl, CURLOPT_PROXY, "http://localhost:8080");
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curl_easy_setopt(curl, CURLOPT_HTTPHEADER, list);
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/* HTTPS over a proxy makes a separate CONNECT to the proxy, so tell
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libcurl to not send the custom headers to the proxy. Keep them
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separate! */
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curl_easy_setopt(curl, CURLOPT_HEADEROPT, CURLHEADER_SEPARATE);
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ret = curl_easy_perform(curl);
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curl_slist_free_all(list);
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curl_easy_cleanup(curl);
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}
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.fi
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.SH AVAILABILITY
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Added in 7.37.0
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.SH RETURN VALUE
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Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
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.SH "SEE ALSO"
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.BR CURLOPT_HTTPHEADER "(3), " CURLOPT_PROXYHEADER "(3), "
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