feat: add sync TFTP client/server library

crates/pfs-tftp-proto/src/packet.rs

@@ -294,8 +294,15 @@ impl fmt::Display for DecodeError {
             Self::UnknownMode(mode) => write!(f, "unknown transfer mode {mode:?}"),
             Self::UnknownErrorCode(code) => write!(f, "unknown error code {code}"),
             Self::OversizeData(n) => write!(f, "DATA payload too large ({n} bytes)"),
-            Self::InvalidLength { kind, expected, got } => {
-                write!(f, "{kind} packet has invalid length (expected {expected}, got {got})")
+            Self::InvalidLength {
+                kind,
+                expected,
+                got,
+            } => {
+                write!(
+                    f,
+                    "{kind} packet has invalid length (expected {expected}, got {got})"
+                )
             }
             Self::TrailingBytes => write!(f, "trailing bytes after packet"),
         }
@@ -339,7 +346,10 @@ mod tests {
         Packet::Ack { block: 1 }.encode_into(&mut bytes);
         bytes.push(0);
         let err = Packet::decode(&bytes).unwrap_err();
-        assert!(matches!(err, DecodeError::InvalidLength { kind: "ACK", .. }));
+        assert!(matches!(
+            err,
+            DecodeError::InvalidLength { kind: "ACK", .. }
+        ));
     }
 
     #[allow(clippy::unwrap_used)]