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e3fe020089
Remove the PROTOCOLS section from the source files completely and instead generate them based on the header data in the curldown files. It also generates TLS backend information for options marked for TLS as protocol. Closes #13175
65 lines
1.3 KiB
Markdown
65 lines
1.3 KiB
Markdown
---
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c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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SPDX-License-Identifier: curl
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Title: CURLOPT_REFERER
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Section: 3
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Source: libcurl
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See-also:
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- CURLINFO_REDIRECT_URL (3)
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- CURLINFO_REFERER (3)
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- CURLOPT_HTTPHEADER (3)
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- CURLOPT_USERAGENT (3)
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Protocol:
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- HTTP
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---
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# NAME
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CURLOPT_REFERER - the HTTP referer header
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# SYNOPSIS
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~~~c
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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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~~~
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# 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 CURLOPT_HTTPHEADER(3).
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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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# DEFAULT
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NULL
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# EXAMPLE
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~~~c
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int main(void)
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{
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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.org/me.html");
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curl_easy_perform(curl);
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}
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}
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~~~
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# AVAILABILITY
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If built with HTTP support
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# 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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