All symbols starting with `i' in ufs/lfs

• IFILE ufs/lfs/lfs.h:183
• if_nextfree ufs/lfs/lfs.h:189
• implementation ufs/lfs/readme:5
• INC_FINFO ufs/lfs/lfs_syscalls.c:54
• INOPB ufs/lfs/lfs.h:229
• int ufs/lfs/lfs_extern.h:89
• IS_FREESPACE ufs/lfs/lfs.h:329
• IS_IFILE ufs/lfs/lfs.h:289
• ISSPACE ufs/lfs/lfs.h:325
• ISSPACE_XXX ufs/lfs/lfs.h:332