NAME

       CURLOPT_HSTSWRITEDATA - pointer passed to the HSTS write callback

SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_HSTSWRITEDATA, void *pointer);

DESCRIPTION

       Data    pointer    to    pass   to   the   HSTS   write   function.   If   you   use   the
       CURLOPT_HSTSWRITEFUNCTION(3) option, this is the pointer you get as input  in  the  fourth
       argument to the callback.

       This option does not enable HSTS, you need to use CURLOPT_HSTS_CTRL(3) to do that.

DEFAULT

       NULL

PROTOCOLS

       This functionality affects http only

EXAMPLE

       struct MyData {
         void *custom;
       };

       int main(void)
       {
         CURL *curl = curl_easy_init();
         struct MyData this;
         if(curl) {
           curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");

           /* pass pointer that gets passed in to the
              CURLOPT_HSTSWRITEFUNCTION callback */
           curl_easy_setopt(curl, CURLOPT_HSTSWRITEDATA, &this);

           curl_easy_perform(curl);
         }
       }

AVAILABILITY

       Added in curl 7.74.0

RETURN VALUE

       This returns CURLE_OK.

SEE ALSO

       CURLOPT_HSTS(3),           CURLOPT_HSTSREADDATA(3),           CURLOPT_HSTSREADFUNCTION(3),
       CURLOPT_HSTSWRITEFUNCTION(3)