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67 lines
2.2 KiB
Groff
67 lines
2.2 KiB
Groff
.\" **************************************************************************
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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) 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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.\" * SPDX-License-Identifier: curl
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.\" *
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.\" **************************************************************************
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.\"
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.TH CURLOPT_REFERER 3 "17 Jun 2014" libcurl libcurl
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.SH NAME
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CURLOPT_REFERER \- the HTTP referer header
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.SH SYNOPSIS
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.nf
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#include <curl/curl.h>
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CURLcode curl_easy_setopt(CURL *handle, CURLOPT_REFERER, char *where);
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.fi
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.SH DESCRIPTION
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Pass a pointer to a null-terminated string as parameter. It is used to set the
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Referer: header field in the HTTP request sent to the remote server. You can
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set any custom header with \fICURLOPT_HTTPHEADER(3)\fP.
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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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.SH DEFAULT
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NULL
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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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curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
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/* tell it where we found the link to this place */
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curl_easy_setopt(curl, CURLOPT_REFERER, "https://example.com/aboutme.html");
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curl_easy_perform(curl);
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}
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.fi
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.SH AVAILABILITY
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If built with HTTP support
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.SH RETURN VALUE
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Returns CURLE_OK if HTTP support is enabled, CURLE_UNKNOWN_OPTION if not, or
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CURLE_OUT_OF_MEMORY if there was insufficient heap space.
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.SH "SEE ALSO"
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.BR CURLINFO_REDIRECT_URL (3),
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.BR CURLINFO_REFERER (3),
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.BR CURLOPT_HTTPHEADER (3),
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.BR CURLOPT_USERAGENT (3)
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