Refactor project structure

kernel/libs/cpio-decoder/src/error.rs

@@ -0,0 +1,27 @@
+// SPDX-License-Identifier: MPL-2.0
+
+pub type Result<T> = core::result::Result<T, self::Error>;
+
+/// Errors of CPIO decoder.
+#[derive(Clone, Copy, PartialEq, Eq, Debug)]
+pub enum Error {
+    MagicError,
+    Utf8Error,
+    ParseIntError,
+    FileTypeError,
+    FileNameError,
+    BufferShortError,
+    IoError,
+}
+
+impl From<core2::io::Error> for Error {
+    #[inline]
+    fn from(err: core2::io::Error) -> Self {
+        use core2::io::ErrorKind;
+
+        match err.kind() {
+            ErrorKind::UnexpectedEof => Self::BufferShortError,
+            _ => Self::IoError,
+        }
+    }
+}