exthdr_t
exthdr_t *exthdr = (exthdr_t *)ra;
exthdr = (exthdr_t *)
exthdr = (exthdr_t *)
exthdr_t *exthdr;
exthdr = (exthdr_t *)ALIGN(ext);
ext_hdrlen = sizeof (exthdr_t);
exthdr = (exthdr_t *)((uchar_t *)exthdr + 1);
exthdr = (exthdr_t *)(p + ext_len);
(void) memcpy(adv_ext, p - sizeof (exthdr_t), sizeof (*adv_ext));
len = this_ext_len + sizeof (exthdr_t);
memcpy(&(temp_addr.s_addr), p - sizeof (exthdr_t),