X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=lightning%2Fsrc%2Futil%2Fser.rs;h=ba8a9fd0d3551efe8062e907f4d52d5f2b635d51;hb=ca103491eb2d1ed0ce25e8b46b194898d38a5ab5;hp=a6991c5c3d0d2a953dea4ba11993c446e37385ee;hpb=801d6e5256d6ac91d5d5668da1fa5a2b55303246;p=rust-lightning

diff --git a/lightning/src/util/ser.rs b/lightning/src/util/ser.rs
index a6991c5c..ba8a9fd0 100644
--- a/lightning/src/util/ser.rs
+++ b/lightning/src/util/ser.rs
@@ -502,14 +502,20 @@ impl<K, V> Writeable for HashMap<K, V>
 
 impl<K, V> Readable for HashMap<K, V>
 	where K: Readable + Eq + Hash,
-	      V: Readable
+	      V: MaybeReadable
 {
 	#[inline]
 	fn read<R: Read>(r: &mut R) -> Result<Self, DecodeError> {
 		let len: u16 = Readable::read(r)?;
 		let mut ret = HashMap::with_capacity(len as usize);
 		for _ in 0..len {
-			ret.insert(K::read(r)?, V::read(r)?);
+			let k = K::read(r)?;
+			let v_opt = V::read(r)?;
+			if let Some(v) = v_opt {
+				if ret.insert(k, v).is_some() {
+					return Err(DecodeError::InvalidValue);
+				}
+			}
 		}
 		Ok(ret)
 	}
@@ -879,8 +885,29 @@ impl<A: Writeable, B: Writeable, C: Writeable> Writeable for (A, B, C) {
 	}
 }
 
+impl Writeable for () {
+	fn write<W: Writer>(&self, _: &mut W) -> Result<(), io::Error> {
+		Ok(())
+	}
+}
 impl Readable for () {
 	fn read<R: Read>(_r: &mut R) -> Result<Self, DecodeError> {
 		Ok(())
 	}
 }
+
+impl Writeable for String {
+	#[inline]
+	fn write<W: Writer>(&self, w: &mut W) -> Result<(), io::Error> {
+		(self.len() as u16).write(w)?;
+		w.write_all(self.as_bytes())
+	}
+}
+impl Readable for String {
+	#[inline]
+	fn read<R: Read>(r: &mut R) -> Result<Self, DecodeError> {
+		let v: Vec<u8> = Readable::read(r)?;
+		let ret = String::from_utf8(v).map_err(|_| DecodeError::InvalidValue)?;
+		Ok(ret)
+	}
+}