Defines starting with `o' in sys

• O_ACCMODE sys/fcntl.h:61
• O_APPEND sys/fcntl.h:72
• O_ASYNC sys/fcntl.h:76
• OBUFSIZ sys/tty.h:122
• O_CREAT sys/fcntl.h:79
• ODDP sys/ioctl_compat.h:101
• O_EXCL sys/fcntl.h:81
• O_EXLOCK sys/fcntl.h:75
• OFILESIZE sys/filedesc.h:92
• O_FSYNC sys/fcntl.h:77
• OMAGIC sys/exec.h:60
• O_NDELAY sys/fcntl.h:113
• ONLCR sys/termios.h:115
• O_NOCTTY sys/fcntl.h:89
• ONOEOT sys/termios.h:117
• O_NONBLOCK sys/fcntl.h:71
• OPEN_MAX sys/syslimits.h:47
• OPMASK sys/namei.h:94
• OPOST sys/termios.h:113
• ORDINARY sys/tty.h:158
• O_RDONLY sys/fcntl.h:58
• O_RDWR sys/fcntl.h:60
• O_SHLOCK sys/fcntl.h:74
• OSIOCGARP sys/ioctl.h:199
• OSIOCGIFADDR sys/ioctl.h:178
• OSIOCGIFBRDADDR sys/ioctl.h:185
• OSIOCGIFCONF sys/ioctl.h:188
• OSIOCGIFDSTADDR sys/ioctl.h:181
• OSIOCGIFNETMASK sys/ioctl.h:190
• OTIOCCONS sys/ioctl_compat.h:163
• O_TRUNC sys/fcntl.h:80
• OTTYDISC sys/ioctl_compat.h:164
• O_WRONLY sys/fcntl.h:59
• OXTABS sys/termios.h:116