SYS_MSGRCV         = 227 // { int sys_msgrcv(int msqid, void *msgp, size_t msgsz, \
	SYS_SHMAT          = 228 // { void *sys_shmat(int shmid, const void *shmaddr, \
	SYS_SHMDT          = 230 // { int sys_shmdt(const void *shmaddr); }
	SYS_MINHERIT       = 250 // { int sys_minherit(void *addr, size_t len, \
	SYS_POLL           = 252 // { int sys_poll(struct pollfd *fds, \

	SYS_MSGRCV         = 227 // { int sys_msgrcv(int msqid, void *msgp, size_t msgsz, \
	SYS_SHMAT          = 228 // { void *sys_shmat(int shmid, const void *shmaddr, \
	SYS_SHMDT          = 230 // { int sys_shmdt(const void *shmaddr); }
	SYS_MINHERIT       = 250 // { int sys_minherit(void *addr, size_t len, \
	SYS_POLL           = 252 // { int sys_poll(struct pollfd *fds, \

				}
				if ifa.IP.IsLoopback() && prefixLen != 8*IPv6len { // see RFC 4291
					return nil, fmt.Errorf("unexpected prefix length: %d/%d for %#v", prefixLen, maxPrefixLen, ifa)
				}
				stats.ipv6++
			}
		case *IPAddr:
			if ifa == nil || ifa.IP == nil || ifa.IP.IsMulticast() {
				return nil, fmt.Errorf("unexpected value: %#v", ifa)
			}
			if len(ifa.IP) != IPv6len {

		for _, domain := range domains {
			domains = append(domains, wildcardDomainPrefix+domain)
		}
	}

	svcAddr := service.GetAddressForProxy(node)
	if len(svcAddr) > 0 && svcAddr != constants.UnspecifiedIP {
		domains = appendDomainPort(domains, svcAddr, port)
	}

	// handle dual stack's extra address when generating the virtualHost domains

	var llen, rlen int32
	syscall.GetAcceptExSockaddrs((*byte)(unsafe.Pointer(&rawsa[0])),
		0, rsan, rsan, &lrsa, &llen, &rrsa, &rlen)
	lsa, _ := lrsa.Sockaddr()
	rsa, _ := rrsa.Sockaddr()

	netfd.setAddr(netfd.addrFunc()(lsa), netfd.addrFunc()(rsa))
	return netfd, nil
}

// Unimplemented functions.

func (fd *netFD) dup() (*os.File, error) {
	// TODO: Implement this, perhaps using internal/poll.DupCloseOnExec.

	}
	var ip IP
	var wildcard bool
	switch addr := addr.(type) {
	case *TCPAddr:
		ip = addr.IP
		wildcard = addr.isWildcard()
	case *UDPAddr:
		ip = addr.IP
		wildcard = addr.isWildcard()
	case *IPAddr:
		ip = addr.IP
		wildcard = addr.isWildcard()
	}

	// Test wildcard IP addresses.
	if wildcard && !testenv.HasExternalNetwork() {
		return false
	}

	SYS_MSGRCV         = 227 // { int sys_msgrcv(int msqid, void *msgp, size_t msgsz, long msgtyp, int msgflg); }
	SYS_SHMAT          = 228 // { void *sys_shmat(int shmid, const void *shmaddr, int shmflg); }
	SYS_SHMDT          = 230 // { int sys_shmdt(const void *shmaddr); }
	SYS_MINHERIT       = 250 // { int sys_minherit(void *addr, size_t len, int inherit); }
	SYS_POLL           = 252 // { int sys_poll(struct pollfd *fds, u_int nfds, int timeout); }

	SYS_MSGRCV         = 227 // { int sys_msgrcv(int msqid, void *msgp, size_t msgsz, long msgtyp, int msgflg); }
	SYS_SHMAT          = 228 // { void *sys_shmat(int shmid, const void *shmaddr, int shmflg); }
	SYS_SHMDT          = 230 // { int sys_shmdt(const void *shmaddr); }
	SYS_MINHERIT       = 250 // { int sys_minherit(void *addr, size_t len, int inherit); }
	SYS_POLL           = 252 // { int sys_poll(struct pollfd *fds, u_int nfds, int timeout); }

	SYS_MSGRCV         = 227 // { int sys_msgrcv(int msqid, void *msgp, size_t msgsz, long msgtyp, int msgflg); }
	SYS_SHMAT          = 228 // { void *sys_shmat(int shmid, const void *shmaddr, int shmflg); }
	SYS_SHMDT          = 230 // { int sys_shmdt(const void *shmaddr); }
	SYS_MINHERIT       = 250 // { int sys_minherit(void *addr, size_t len, int inherit); }
	SYS_POLL           = 252 // { int sys_poll(struct pollfd *fds, u_int nfds, int timeout); }

	SYS_MSGRCV         = 227 // { int sys_msgrcv(int msqid, void *msgp, size_t msgsz, long msgtyp, int msgflg); }
	SYS_SHMAT          = 228 // { void *sys_shmat(int shmid, const void *shmaddr, int shmflg); }
	SYS_SHMDT          = 230 // { int sys_shmdt(const void *shmaddr); }
	SYS_MINHERIT       = 250 // { int sys_minherit(void *addr, size_t len, int inherit); }
	SYS_POLL           = 252 // { int sys_poll(struct pollfd *fds, u_int nfds, int timeout); }