Function boring_sys::SSL_export_keying_material

pub unsafe extern "C" fn SSL_export_keying_material(
    ssl: *mut SSL,
    out: *mut u8,
    out_len: usize,
    label: *const c_char,
    label_len: usize,
    context: *const u8,
    context_len: usize,
    use_context: c_int
) -> c_int