init

    pub fn init(typeflag: FileType) Header {
        return .{
            .typeflag = typeflag,
            .mode = switch (typeflag) {
                .directory => default_mode.dir,
                .symbolic_link => default_mode.sym_link,
                .regular => default_mode.file,
                else => default_mode.other,
            },
        };
    }