Function pamoja_lorawan_rx_fopts_len 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn pamoja_lorawan_rx_fopts_len(
    rx: *const PamojaLorawanRx,
) -> usize

Returns the length in bytes of the frame options a decoded frame carries.

Returns

The length, or 0 if rx is null.

Safety

rx must be a live handle from pamoja_lorawan_session_decode, or null.