.\" generated by cd2nroff 0.1 from CURLINFO_REFERER.md
.TH CURLINFO_REFERER 3 "2024-09-18" libcurl
.SH NAME
CURLINFO_REFERER \- get the used referrer request header
.SH SYNOPSIS
.nf
#include <curl/curl.h>

CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_REFERER, char **hdrp);
.fi
.SH DESCRIPTION
Pass in a pointer to a char pointer and get the referrer header used in the
most recent request.

The \fBhdrp\fP pointer is NULL or points to private memory you MUST NOT free \-
it gets freed when you call \fIcurl_easy_cleanup(3)\fP on the corresponding
CURL handle.
.SH PROTOCOLS
This functionality affects http only
.SH EXAMPLE
.nf
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);
  }
}
.fi
.SH AVAILABILITY
Added in curl 7.76.0
.SH RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
.SH SEE ALSO
.BR CURLOPT_REFERER (3),
.BR curl_easy_getinfo (3),
.BR curl_easy_header (3),
.BR curl_easy_setopt (3)