tabc             1850 kern/tty.c     	int tabc, s;
tabc             1889 kern/tty.c     				for (cp = firstc(&tp->t_rawq, &tabc); cp;
tabc             1890 kern/tty.c     				    cp = nextc(&tp->t_rawq, cp, &tabc))
tabc             1891 kern/tty.c     					ttyecho(tabc, tp);