Manpages - CURLOPT_AUTOREFERER.3

CURLOPT_AUTOREFERER - automatically update the referer header

#include <curl/curl.h>

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_AUTOREFERER, long autorefer);

Pass a parameter set to 1 to enable this. When enabled, libcurl will automatically set the Referer: header field in HTTP requests to the full URL where it follows a Location: redirect.

0, disabled

HTTP

  CURL *curl = curl_easy_init();
  if(curl) {
    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/foo.bin");

    /* follow redirects */
    curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L);

    /* set Referer: automatically when following redirects */
    curl_easy_setopt(curl, CURLOPT_AUTOREFERER, 1L);

    ret = curl_easy_perform(curl);

    curl_easy_cleanup(curl);
  }

Along with HTTP

Returns CURLE_OK if HTTP is supported, and CURLE_UNKNOWN_OPTION if not.

*CURLOPT_REFERER*(3), *CURLOPT_FOLLOWLOCATION*(3),