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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. 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) libcurl 2026-02-26 CURLINFO_REFERER(3)
NAME | SYNOPSIS | DESCRIPTION | PROTOCOLS | EXAMPLE | AVAILABILITY | RETURN VALUE | SEE ALSO
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