Function openssl_sys::SSL_CTX_set_stateless_cookie_generate_cb
pub unsafe extern "C" fn SSL_CTX_set_stateless_cookie_generate_cb(s: *mut SSL_CTX, cb: Option<unsafe extern "C" fn(*mut SSL, *mut c_uchar, *mut size_t) -> c_int>)
The portability is definied by:
#[cfg(ossl111)]