making things run in CBREAK mode

[Eric J. Lechner]

a housemate and myself have been porting BSD sources to
run under A/UX, and are slightly dismayed because we
cannot find any references to CBREAK mode in the manual.
since we are trying to port sources that use the CBREAK
flag (from sgttyb.sg_flags, using ioctl and TIOCGETP and
TIOCSETP).

is there a trick to making things run in cbreak (stty doesn't
include a cbreak mode either), or does it just plain
not exist?

any help would be appreciated.
	eric lechner