Specifically:
ROOTINO -> UFS_ROOTINO WINO -> UFS_WINO NXADDR -> UFS_NXADDR NDADDR -> UFS_NDADDR NIADDR -> UFS_NIADDR MAXSYMLINKLEN_UFS[12] -> UFS[12]_MAXSYMLINKLEN (for consistency)
Prefix ext2's and nandfs's NDADDR and NIADDR with EXT2_ and NANDFS_
Obtained from: NetBSD