struct dhcpv6_ia_hdr *h = (void*)odata;
uint8_t *oend = odata + olen, *d;
dhcpv6_for_each_option(&h[1], oend, otype, olen, d) {
struct dhcpv6_ia_hdr *h = (void*)odata;
uint8_t *oend = odata + olen, *d;
dhcpv6_for_each_option(&h[1], oend, otype, olen, d) {