CURLOPT_REFERER - Man Page
set the HTTP referer header
Synopsis
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_REFERER, char *where);
Description
Pass a pointer to a null-terminated string as parameter. It will be used to set the Referer: header in the http request sent to the remote server. This can be used to fool servers or scripts. You can also set any custom header with CURLOPT_HTTPHEADER(3).
The application does not have to keep the string around after setting this option.
Default
NULL
Protocols
HTTP
Example
CURL *curl = curl_easy_init(); if(curl) { curl_easy_setopt(curl, CURLOPT_URL, "https://example.com"); /* tell it where we found the link to this place */ curl_easy_setopt(curl, CURLOPT_REFERER, "https://example.com/aboutme.html"); curl_easy_perform(curl); }
Availability
If built with HTTP support
Return Value
Returns CURLE_OK if HTTP support is enabled, CURLE_UNKNOWN_OPTION if not, or CURLE_OUT_OF_MEMORY if there was insufficient heap space.
See Also
Referenced By
curl_easy_setopt(3), CURLOPT_AUTOREFERER(3), CURLOPT_HTTPHEADER(3), CURLOPT_USERAGENT(3).
November 04, 2020 libcurl 7.75.0 curl_easy_setopt options