open_tty
fMaster = open_tty(0, true);
fSlave = open_tty(0, false);
fMaster = open_tty(0, true);
fSlave = open_tty(0, false);
fMaster = open_tty(0, true);
fSlave = open_tty(0, false);
fMaster = open_tty(0, true);
fSlave = open_tty(0, false);
fMaster = open_tty(0, true);
fSlave = open_tty(0, false);
fMaster = open_tty(0, true);
fSlave = open_tty(0, false);