//     or does not support IPv4, we use a dual stack, AF_INET6 and
//     IPV6_V6ONLY=0, wildcard address listen. The dual stack
//     wildcard address listen may fall back to an IPv6-only,
//     AF_INET6 and IPV6_V6ONLY=1, wildcard address listen.
//     Otherwise we prefer an IPv4-only, AF_INET, wildcard address
//     listen.
//
//   - A listen for a wildcard communication domain, "tcp" or
//     "udp", with an IPv4 wildcard address: same as above.

    - --initial-advertise-peer-urls=https://:2380
    - --initial-cluster==https://:2380
    - --key-file=etcd/server.key
    - --listen-client-urls=https://127.0.0.1:2379,https://:2379
    - --listen-metrics-urls=http://127.0.0.1:2381
    - --listen-peer-urls=https://:2380
    - --name=
    - --peer-cert-file=etcd/peer.crt
    - --peer-client-cert-auth=true
    - --peer-key-file=etcd/peer.key

	n, e := socketcall(_SENDMSG, uintptr(s), uintptr(unsafe.Pointer(msg)), uintptr(flags), 0, 0, 0)
	if e != 0 {
		err = e
	}
	return
}

func Listen(s int, n int) (err error) {
	_, e := socketcall(_LISTEN, uintptr(s), uintptr(n), 0, 0, 0, 0)
	if e != 0 {
		err = e
	}
	return
}

func Shutdown(s, how int) (err error) {

    Property<Boolean> getEnabled();

    /**
     * Host address to listen on or connect to when debug is enabled. By default, no host is set.
     *
     * <p>
     * When run in {@link #getServer() server} mode, the process listens on the loopback address on Java 9+ and all interfaces on Java 8 and below by default.
     * Setting host to {@code *} will make the process listen on all network interfaces. This is not supported on Java 8 and below.

	// SetUnlinkOnClose should do what it says.

	t.Run("Listen/SetUnlinkOnClose(true)", func(t *testing.T) {
		l := listen(t)
		checkExists(t, "after Listen")
		l.SetUnlinkOnClose(true)
		l.Close()
		checkNotExists(t, "after Listener close")
	})

	t.Run("Listen/SetUnlinkOnClose(false)", func(t *testing.T) {
		l := listen(t)
		checkExists(t, "after Listen")
		l.SetUnlinkOnClose(false)
		l.Close()

    upstream minio {
        server minio1:9000;
    }

    upstream console {
        ip_hash;
        server minio1:9001;
    }

    server {
        listen       9000;
        listen  [::]:9000;
        server_name  localhost;

        # To allow special characters in headers
        ignore_invalid_headers off;
        # Allow any size file to be uploaded.

    }

    upstream console {
        ip_hash;
        server minio1:9001;
        server minio2:9001;
        server minio3:9001;
        server minio4:9001;
    }

    server {
        listen       9000;
        listen  [::]:9000;
        server_name  localhost;

        # To allow special characters in headers
        ignore_invalid_headers off;
        # Allow any size file to be uploaded.

    }

    upstream console {
        ip_hash;
        server minio1:9001;
        server minio2:9001;
        server minio3:9001;
        server minio4:9001;
    }

    server {
        listen       9000;
        listen  [::]:9000;
        server_name  localhost;

        # To allow special characters in headers
        ignore_invalid_headers off;
        # Allow any size file to be uploaded.

        server minio4:9001;
        server minio5:9001;
        server minio6:9001;
        server minio7:9001;
        server minio8:9001;
    }

    server {
        listen       9000;
        listen  [::]:9000;
        server_name  localhost;

        # To allow special characters in headers
        ignore_invalid_headers off;
        # Allow any size file to be uploaded.

	if err != nil {
		listen.Close()
		return nil, err
	}
	name := string(buf[:n])
	ctl, err := os.OpenFile(netdir+"/"+fd.net+"/"+name+"/ctl", os.O_RDWR, 0)
	if err != nil {
		listen.Close()
		return nil, err
	}
	data, err := os.OpenFile(netdir+"/"+fd.net+"/"+name+"/data", os.O_RDWR, 0)
	if err != nil {
		listen.Close()
		ctl.Close()
		return nil, err
	}