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repo/core/curl/files/CURLOPT_REFERER.3
2024-07-29 19:00:04 -05:00

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.\" generated by cd2nroff 0.1 from CURLOPT_REFERER.md
.TH CURLOPT_REFERER 3 "2024-07-29" libcurl
.SH NAME
CURLOPT_REFERER \- the HTTP referer header
.SH SYNOPSIS
.nf
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_REFERER, char *where);
.fi
.SH DESCRIPTION
Pass a pointer to a null\-terminated string as parameter. It is used to set the
Referer: header field in the HTTP request sent to the remote server. You can
set any custom header with \fICURLOPT_HTTPHEADER(3)\fP.
The application does not have to keep the string around after setting this
option.
.SH DEFAULT
NULL
.SH PROTOCOLS
This functionality affects http only
.SH EXAMPLE
.nf
int main(void)
{
CURL *curl = curl_easy_init();
if(curl) {
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
/* tell it where we found the link to this place */
curl_easy_setopt(curl, CURLOPT_REFERER, "https://example.org/me.html");
curl_easy_perform(curl);
}
}
.fi
.SH AVAILABILITY
Added in curl 7.1
.SH RETURN VALUE
Returns CURLE_OK if HTTP support is enabled, CURLE_UNKNOWN_OPTION if not, or
CURLE_OUT_OF_MEMORY if there was insufficient heap space.
.SH SEE ALSO
.BR CURLINFO_REDIRECT_URL (3),
.BR CURLINFO_REFERER (3),
.BR CURLOPT_HTTPHEADER (3),
.BR CURLOPT_USERAGENT (3)