ip4
p->ip4 = ((uint32_t *)ip6)[3];
so = connect_to(p->sz, p->ip4, p->ip6, p->esip);
in_addr_t ip4;
struct sockaddr_in ip4; /* IPv4 */
addr = &lif->li_addr.ip4.sin_addr;
addr = &lif->li_addr.ip4.sin_addr;
ip4(fmt, type, basetype, vaidx);
ipaddr_t ip4;
ip4 = dtrace_load32(tupregs[argi].dttk_value);
ptr8 = (uint8_t *)&ip4;