CURLINFO_REFERER(3)

NAME
CURLINFO_REFERER - get the used referrer request header

SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_REFERER, char **hdrp);

DESCRIPTION
Pass in a pointer to a char pointer and get the referrer header used in the most recent request. The hdrp pointer is NULL or points to private memory. You must not free it. The memory gets freed automatically when you call curl_easy_cleanup(3) on the corresponding curl handle.

PROTOCOLS
This functionality affects http only

EXAMPLE
int main(void)
{
  CURL *curl = curl_easy_init();
  if(curl) {
    CURLcode res;
    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
    curl_easy_setopt(curl, CURLOPT_REFERER, "https://example.org/referrer");
    res = curl_easy_perform(curl);
    if(res == CURLE_OK) {
      char *hdr = NULL;
      curl_easy_getinfo(curl, CURLINFO_REFERER, &hdr);
      if(hdr)
        printf("Referrer header: %s\n", hdr);
    }
    curl_easy_cleanup(curl);
  }
}

AVAILABILITY
Added in curl 7.76.0

RETURN VALUE
curl_easy_getinfo(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
CURLOPT_REFERER(3), curl_easy_getinfo(3), curl_easy_header(3), curl_easy_setopt(3)