- FD_CLOEXEC
- FD_DATA
- FD_DCR
- FD_DIR
- FD_DOR
- FD_READ
- FD_RECALIBRATE
- FD_SEEK
- FD_SENSEI
- FD_SPECIFY
- FD_STATUS
- FD_WRITE
- FF0
- FF1
- FFDLY
- FIRST_LDT_ENTRY
- FIRST_TASK
- FIRST_TSS_ENTRY
- FLUSHO
- FULL
- F_DUPFD
- F_GETFD
- F_GETFL
- F_GETLK
- F_OK
- F_RDLCK
- F_SETFD
- F_SETFL
- F_SETLK
- F_SETLKW
- F_UNLCK
- F_WRLCK