Properly serialize UUIDs in remotexpc

idevice/src/xpc/format.rs

@@ -252,7 +252,6 @@ impl XPCObject {
             }
             XPCObject::Uuid(uuid) => {
                 buf.extend_from_slice(&(XPCType::Uuid as u32).to_le_bytes());
-                buf.extend_from_slice(&16_u32.to_le_bytes());
                 buf.extend_from_slice(uuid.as_bytes());
             }
             XPCObject::FileTransfer { msg_id, data } => {
@@ -412,6 +411,13 @@ impl XPCObject {
         }
     }
 
+    pub fn to_dictionary(self) -> Option<Dictionary> {
+        match self {
+            XPCObject::Dictionary(dict) => Some(dict),
+            _ => None,
+        }
+    }
+
     pub fn as_array(&self) -> Option<&Vec<Self>> {
         match self {
             XPCObject::Array(array) => Some(array),