CURLOPT_HSTSREADDATA - Man Page
pointer passed to the HSTS read callback
Synopsis
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_HSTSREADDATA, void *pointer);
Experimental
Warning: this feature is early code and is marked as experimental. It can only be enabled by explicitly telling configure with --enable-hsts. You are advised to not ship this in production before the experimental label is removed.
Description
Data pointer to pass to the HSTS read function. If you use the CURLOPT_HSTSREADFUNCTION(3) option, this is the pointer you'll get as input in the 3rd argument to the callback.
This option doesn't enable HSTS, you need to use CURLOPT_HSTS_CTRL(3) to do that.
Default
NULL
Protocols
This feature is only used for HTTP(S) transfer.
Example
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_HSTSREADFUNCTION callback */ curl_easy_setopt(curl, CURLOPT_HSTSREADDATA, &this); curl_easy_perform(curl); }
Availability
Added in 7.74.0
Return Value
This will return CURLE_OK.
See Also
CURLOPT_HSTSREADFUNCTION(3), CURLOPT_HSTSWRITEDATA(3), CURLOPT_HSTSWRITEFUNCTION(3),
Referenced By
curl_easy_setopt(3), CURLOPT_HSTSREADFUNCTION(3), CURLOPT_HSTSWRITEDATA(3).