CURLINFO_REFERER(3) Library Functions Manual CURLINFO_REFERER(3) NAME CURLINFO_REFERER - get the used referrer request header SYNOPSIS #include 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 HTTP 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 7.76.0 RETURN VALUE Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not. SEE ALSO CURLOPT_REFERER(3), curl_easy_getinfo(3), curl_easy_header(3), curl_easy_setopt(3) libcurl April 26 2024 CURLINFO_REFERER(3)