CURLOPT_REFERER - Man Page

set 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 will be used to set the Referer: header in the http request sent to the remote server. This can be used to fool servers or scripts. You can also 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

HTTP

Example

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.com/aboutme.html");

  curl_easy_perform(curl);
}

Availability

If built with HTTP support

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

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

Referenced By

curl_easy_setopt(3), CURLINFO_REFERER(3), CURLOPT_AUTOREFERER(3), CURLOPT_HTTPHEADER(3), CURLOPT_USERAGENT(3).

February 19, 2021 libcurl 7.76.1 curl_easy_setopt options