Update FileAttributes size to work on 32 bit platforms

backuptar/tar.go

@@ -303,7 +303,7 @@ func FileInfoFromHeader(hdr *tar.Header) (name string, size int64, fileInfo *win
 		if err != nil {
 			return "", 0, nil, err
 		}
-		fileInfo.FileAttributes = uintptr(attr)
+		fileInfo.FileAttributes = attr
 	} else {
 		if hdr.Typeflag == tar.TypeDir {
 			fileInfo.FileAttributes |= syscall.FILE_ATTRIBUTE_DIRECTORY

fileinfo.go

@@ -20,7 +20,7 @@ const (
 // FileBasicInfo contains file access time and file attributes information.
 type FileBasicInfo struct {
 	CreationTime, LastAccessTime, LastWriteTime, ChangeTime syscall.Filetime
-	FileAttributes                                          uintptr // includes padding
+	FileAttributes                                          uint64 // includes padding
 }
 
 // GetFileBasicInfo retrieves times and attributes for a file.