Function SSL_CTX_get_security_callback

pub unsafe extern "C" fn SSL_CTX_get_security_callback(
    ctx: *const ssl_ctx_st,
) -> Option<unsafe extern "C" fn(_: *const ssl_st, _: *const ssl_ctx_st, _: i32, _: i32, _: i32, _: *mut c_void, _: *mut c_void) -> i32>