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 gets freed 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)