CURLINFO_REFERER(3) Library Functions Manual 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 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)
libcurl 2026-07-12 CURLINFO_REFERER(3)
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