PPP_ADDRESS
*wptr++ = PPP_ADDRESS(rptr); /* assumes the ppp header is */
adrs = PPP_ADDRESS(rptr);
adrs = PPP_ADDRESS(cp);
address = PPP_ADDRESS(dst->sa_data);
address = PPP_ADDRESS(cp);
wptr[0] = PPP_ADDRESS(rptr);
wptr[0] = PPP_ADDRESS(hdr);