download error handling

src/download.rs

@@ -91,6 +91,9 @@ pub async fn download_config(
                     "Done" => {
                         break;
                     }
+                    _ if status.starts_with("Error") => {
+                        return Err(DownloadError::Unknown(status.into()).into());
+                    }
                     _ => {}
                 }
             }

src/error.rs

@@ -65,7 +65,7 @@ pub enum DownloadError {
     #[error("Invalid file type")]
     InvalidFileType,
     #[error("Received error code: {0}")]
-    Unknown(u32),
+    Unknown(String),
     #[error("Mismatched payload length, expected {0} got {1}")]
     MismatchedLength(u32, u32),
     #[error("Received an invalid md5 hash")]