nd_opts_search
ndopts->nd_opts_search = (struct nd_opt_hdr *)opt;
ndopts->nd_opts_search = NULL;
if (!ndopts->nd_opts_search)
nd_opt = ndopts->nd_opts_search;
ndopts->nd_opts_search = (struct nd_opt_hdr *)((caddr_t)nd_opt + olen);
if (ndopts->nd_opts_search > ndopts->nd_opts_last) {
} else if (ndopts->nd_opts_search == ndopts->nd_opts_last) {
ndopts->nd_opts_search = NULL;
if (!ndopts->nd_opts_search)