CURLOPT_REFERER(3) Library Functions Manual CURLOPT_REFERER(3)
NAME
CURLOPT_REFERER - the HTTP referer header
SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_REFERER, char *where);
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 CURLOPT_HTTPHEADER(3).
The application does not have to keep the string around after setting
this option.
Using this option multiple times makes the last set string override the
previous ones. Set it to NULL to disable its use again.
DEFAULT
NULL
PROTOCOLS
This functionality affects http only
EXAMPLE
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);
}
}
AVAILABILITY
Added in curl 7.1
RETURN VALUE
curl_easy_setopt(3) returns a CURLcode indicating success or error.
CURLE_OK (0) means everything was OK, non-zero means an error occurred,
see libcurl-errors(3).
SEE ALSO
CURLINFO_REDIRECT_URL(3), CURLINFO_REFERER(3), CURLOPT_HTTPHEADER(3),
CURLOPT_USERAGENT(3)
libcurl 2025-02-08 CURLOPT_REFERER(3)
curl 8.12.0 - Generated Tue Feb 18 14:40:39 CST 2025