Defines starting with `o' in sys

• O_ACCMODE sys/fcntl.h:60
• O_APPEND sys/fcntl.h:71
• O_ASYNC sys/fcntl.h:75
• OBUFSIZ sys/tty.h:132
• O_CREAT sys/fcntl.h:78
• ODDP sys/ioctl_compat.h:109
• O_EXCL sys/fcntl.h:80
• O_EXLOCK sys/fcntl.h:74
• OFILESIZE sys/filedesc.h:88
• O_FSYNC sys/fcntl.h:76
• OMAGIC sys/exec.h:58
• O_NDELAY sys/fcntl.h:112
• ONLCR sys/termios.h:113
• O_NOCTTY sys/fcntl.h:88
• ONOEOT sys/termios.h:115
• O_NONBLOCK sys/fcntl.h:70
• OPEN_MAX sys/syslimits.h:43
• OPMASK sys/namei.h:93
• OPOST sys/termios.h:111
• ORDINARY sys/tty.h:168
• O_RDONLY sys/fcntl.h:57
• O_RDWR sys/fcntl.h:59
• O_SHLOCK sys/fcntl.h:73
• OSIOCGARP sys/ioctl.h:204
• OSIOCGIFADDR sys/ioctl.h:183
• OSIOCGIFBRDADDR sys/ioctl.h:190
• OSIOCGIFCONF sys/ioctl.h:193
• OSIOCGIFDSTADDR sys/ioctl.h:186
• OSIOCGIFNETMASK sys/ioctl.h:195
• OTIOCCONS sys/ioctl_compat.h:171
• O_TRUNC sys/fcntl.h:79
• OTTYDISC sys/ioctl_compat.h:172
• O_WRONLY sys/fcntl.h:58
• OXTABS sys/termios.h:114