properly handle reading rdevmaj/minor from files

Signed-off-by: Zen <[email protected]>

Author: desultory

src/pycpio/cpio/data.py

@@ -1,3 +1,4 @@
+import os
 from pathlib import Path
 
 from pycpio.masks import mode_bytes_from_path
@@ -110,6 +111,9 @@ def from_path(path: Path, relative=False, resolve_symlink=False, *args, **kwargs
             except FileNotFoundError:
                 kwargs[stat] = 0  # If the symlink target doesn't exist, set the stat to 0
 
+        kwargs["rdevmajor"] = kwargs.pop("rdevmajor", os.major(path.stat().st_rdev))
+        kwargs["rdevminor"] = kwargs.pop("rdevminor", os.minor(path.stat().st_rdev))
+
         header = CPIOHeader(*args, **kwargs)
         data = CPIOData.get_subtype(b"", header, *args, **kwargs)