NULLC
if (cn[0] == NULLC) {
if (*++cp != NULLC) {
if (cn[0] == NULLC) {
*cp++ = NULLC;
linkbuf[lb_len] = NULLC; /* null terminate */
#ifndef NULLC
if ((rval != NULL) && (*rval != NULLC)) {
*s = NULLC; /* replace it with a null */
if ((rval != NULL) && (*rval != NULLC)) {
*s = NULLC; /* replace it with a null */