Defines starting with `o' in sys

• O_ACCMODE sys/fcntl.h:65
• O_APPEND sys/fcntl.h:80
• O_ASYNC sys/fcntl.h:84
• OBUFSIZ sys/tty.h:106
• O_CREAT sys/fcntl.h:87
• ODDP sys/ioctl_compat.h:100
• O_EXCL sys/fcntl.h:89
• O_EXLOCK sys/fcntl.h:83
• OFILESIZE sys/filedesc.h:88
• O_FSYNC sys/fcntl.h:85
• O_NDELAY sys/fcntl.h:121
• ONLCR sys/termios.h:110
• O_NOCTTY sys/fcntl.h:97
• ONOEOT sys/termios.h:112
• O_NONBLOCK sys/fcntl.h:79
• OPEN_MAX sys/syslimits.h:43
• OPMASK sys/namei.h:100
• OPOST sys/termios.h:108
• ORDINARY sys/tty.h:138
• O_RDONLY sys/fcntl.h:62
• O_RDWR sys/fcntl.h:64
• O_SHLOCK sys/fcntl.h:82
• OSIOCGIFADDR sys/sockio.h:54
• OSIOCGIFBRDADDR sys/sockio.h:61
• OSIOCGIFCONF sys/sockio.h:64
• OSIOCGIFDSTADDR sys/sockio.h:57
• OSIOCGIFNETMASK sys/sockio.h:66
• OTIOCCONS sys/ioctl_compat.h:162
• O_TRUNC sys/fcntl.h:88
• OTTYDISC sys/ioctl_compat.h:163
• O_WRONLY sys/fcntl.h:63
• OXTABS sys/termios.h:111