+/*
+ * Filesystem idetification
+ */
+#define FS_MAGIC 0x011954 /* the fast filesystem magic number */
+#define FS_OKAY 0x7c269d38 /* superblock checksum */
+#define FS_42INODEFMT -1 /* 4.2BSD inode format */
+#define FS_44INODEFMT 2 /* 4.4BSD inode format */