Lines Matching defs:dn
22 static int child = -1, dn;33 if ((dn = open(acu, 1)) < 0) {42 (void) close(dn);56 nw = write(dn, num, lt = strlen(num));69 (void) close(dn);73 (void) ioctl(dn, TCGETS, &buf);75 (void) ioctl(dn, TCSETSF, &buf);80 (void) close(dn);119 if (dn > 0)120 (void) close(dn);