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.

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

Returns CURLE_OK if HTTP support is enabled, CURLE_UNKNOWN_OPTION if not, or CURLE_OUT_OF_MEMORY if there was insufficient heap space.

SEE ALSO

CURLINFO_REDIRECT_URL(3), CURLINFO_REFERER(3), CURLOPT_HTTPHEADER(3), CURLOPT_USERAGENT(3)