fix: pkg interpreting

pkgfile/src/lib.rs

@@ -9,28 +9,22 @@ impl TryFrom<Vec<u8>> for PKGFile {
     fn try_from(value: Vec<u8>) -> Result<Self, ()> {
         match value[0] {
             1 => {
-                let header: Vec<u32> = value[..3]
+                let header: Vec<u32> = value[..3].iter().map(|v| u32::from(*v)).collect();
-                    .iter()
-                    .map(|v| u32::from(*v))
-                    .collect();
                 let manifest_size: u32 = (header[1] << 8) | header[2];
                 if manifest_size > value.len() as u32 {
                     return Err(());
                 }
                 Ok(PKGFile {
                     manifest: match String::from_utf8(
-                        value[
+                        value[3..(manifest_size as usize + 3)].to_vec(),
-                            3..(manifest_size as usize + 3)
+                    ) {
-                            ].to_vec()
-                        )
-                    {
                         Ok(s) => s,
-                        _ => return Err(())
+                        _ => return Err(()),
                     },
                     data: value[(manifest_size as usize + 3)..].to_vec(),
                 })
             }
-            _ => Err(())
+            _ => Err(()),
         }
     }
 }