ttys revision da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinhdr termios,termio,sgtty
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinsys termios,termio,ioctl,bsdtty,nttyio,filio
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinlib tcgetattr,tcgetpgrp termios.h