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).

November 04, 2020 libcurl 7.78.0 curl_easy_setopt options