sstosin6
port = ntohs(sstosin6(&addr->address)->sin6_port);
port = ntohs(sstosin6(&addr->address)->sin6_port);
sin6 = sstosin6(ss);
if (IN6_IS_ADDR_UNSPECIFIED(&sstosin6(ss)->sin6_addr))
port = ntohs(sstosin6(ss)->sin6_port);
mask6p = (uint32_t *)&sstosin6(&ap->a_mask)->sin6_addr.s6_addr32[0];
addr6p = (uint32_t *)&sstosin6(&ap->a_addr)->sin6_addr.s6_addr32[0];