CURLOPT_HSTSREADDATA(3) Introduction to Library Functions

NAME

CURLOPT_HSTSREADDATA - pointer passed to the HSTS read callback

SYNOPSIS

#include <curl/curl.h>

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

DESCRIPTION

Data pointer to pass to the HSTS read function. If you use the
CURLOPT_HSTSREADFUNCTION(3) option, this is the pointer you get as
input in the 3rd 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_HSTSREADFUNCTION callback */
curl_easy_setopt(curl, CURLOPT_HSTSREADDATA, &this);

curl_easy_perform(curl);
}
}

AVAILABILITY

Added in curl 7.74.0

RETURN VALUE

This returns CURLE_OK.

SEE ALSO

CURLOPT_HSTS(3), CURLOPT_HSTSREADFUNCTION(3),
CURLOPT_HSTSWRITEDATA(3), CURLOPT_HSTSWRITEFUNCTION(3)

libcurl 2025-02-25 CURLOPT_HSTSREADDATA(3)