Decode as required option

lightning/src/routing/gossip.rs

@@ -643,12 +643,12 @@ impl Writeable for ChannelUpdateInfo {
 	}
 }
 
-struct ChannelUpdateInfoDeserWrap(ChannelUpdateInfo);
+struct ChannelUpdateInfoDeserWrap(Option<ChannelUpdateInfo>);
 
 impl MaybeReadable for ChannelUpdateInfoDeserWrap {
 	fn read<R: io::Read>(reader: &mut R) -> Result<Option<Self>, DecodeError> {
-		if let Ok(channel_update) = ::util::ser::Readable::read(reader) {
-			Ok(Some(Self(channel_update)))
+		if let Ok(channel_update_option) = ::util::ser::Readable::read(reader) {
+			Ok(Some(Self(channel_update_option)))
 		} else {
 			Ok(None)
 		}
@@ -808,9 +808,9 @@ impl Readable for ChannelInfo {
 		Ok(ChannelInfo {
 			features: init_tlv_based_struct_field!(features, required),
 			node_one: init_tlv_based_struct_field!(node_one, required),
-			one_to_two: one_to_two_wrap.map(|w| w.0),
+			one_to_two: one_to_two_wrap.map(|w| w.0).unwrap_or(None),
 			node_two: init_tlv_based_struct_field!(node_two, required),
-			two_to_one: two_to_one_wrap.map(|w| w.0),
+			two_to_one: two_to_one_wrap.map(|w| w.0).unwrap_or(None),
 			capacity_sats: init_tlv_based_struct_field!(capacity_sats, required),
 			announcement_message: init_tlv_based_struct_field!(announcement_message, required),
 			announcement_received_time: init_tlv_based_struct_field!(announcement_received_time, (default_value, 0)),