public NameServiceClientImpl ( CIFSContext tc ) {
        this(tc.getConfig().getNetbiosLocalPort(), tc.getConfig().getNetbiosLocalAddress(), tc);
    }


    NameServiceClientImpl ( int lport, InetAddress laddr, CIFSContext tc ) {
        this.lport = lport;
        this.laddr = laddr;
        this.transportContext = tc;

        this.baddr = tc.getConfig().getBroadcastAddress();

        this.idleTimeoutDisabled = Config.getBoolean(p, "jcifs.smb.client.disableIdleTimeout", false);

        this.smbLocalAddress = Config.getLocalHost(p);
        this.smbLocalPort = Config.getInt(p, "jcifs.smb.client.lport", 0);
        this.maxMpxCount = Config.getInt(p, "jcifs.smb.client.maxMpxCount", SmbConstants.DEFAULT_MAX_MPX_COUNT);
        this.smbSendBufferSize = Config.getInt(p, "jcifs.smb.client.snd_buf_size", SmbConstants.DEFAULT_SND_BUF_SIZE);

     * 
     * @return timeout for SMB responses, in milliseconds
     */
    int getResponseTimeout ();


    /**
     * 
     * Property <tt>jcifs.smb.client.lport</tt> (int)
     * 
     * @return local port to use for outgoing connections
     */
    int getLocalPort ();


    /**
     * 
     * Property <tt>jcifs.smb.client.laddr</tt> (string)
     * 

	}
	sort.Slice(clusters, func(i, j int) bool {
		iDirection, iSubset, iName, iPort := safelyParseSubsetKey(clusters[i].Name)
		jDirection, jSubset, jName, jPort := safelyParseSubsetKey(clusters[j].Name)
		if iName == jName {
			if iSubset == jSubset {
				if iPort == jPort {
					return iDirection < jDirection
				}
				return iPort < jPort
			}
			return iSubset < jSubset
		}
		return iName < jName
	})

		return err
	}
	// Sort by port, addr, type
	sort.Slice(listeners, func(i, j int) bool {
		if listeners[i].GetInternalListener() != nil && listeners[j].GetInternalListener() != nil {
			return listeners[i].GetName() < listeners[j].GetName()
		}
		iPort := retrieveListenerPort(listeners[i])
		jPort := retrieveListenerPort(listeners[j])
		if iPort != jPort {
			return iPort < jPort
		}

import (
	"context"
	"net"
	"syscall"
	"time"
)

// CheckPortAvailability - check if given host and port is already in use.
// Note: The check method tries to listen on given port and closes it.
// It is possible to have a disconnected client in this tiny window of time.
func CheckPortAvailability(host, port string, opts TCPOptions) (err error) {
	lc := &net.ListenConfig{

		expectedErr error
	}{
		{"", port, fmt.Errorf("listen tcp :%v: bind: address already in use", port)},
		{"127.0.0.1", port, fmt.Errorf("listen tcp 127.0.0.1:%v: bind: address already in use", port)},
	}

	for _, testCase := range testCases {
		err := CheckPortAvailability(testCase.host, strconv.Itoa(testCase.port), TCPOptions{})
		switch {
		case testCase.expectedErr == nil:
			if err != nil {

package http

import (
	"context"
	"net"
	"time"
)

// CheckPortAvailability - check if given host and port is already in use.
// Note: The check method tries to listen on given port and closes it.
// It is possible to have a disconnected client in this tiny window of time.
func CheckPortAvailability(host, port string, opts TCPOptions) (err error) {
	lc := &net.ListenConfig{}

-A OUTPUT -p udp --dport 53 -m owner --uid-owner 1337 -j CT --zone 1
-A OUTPUT -p udp --sport 15053 -m owner --uid-owner 1337 -j CT --zone 2
-A OUTPUT -p udp --dport 53 -m owner --gid-owner 1337 -j CT --zone 1
-A OUTPUT -p udp --sport 15053 -m owner --gid-owner 1337 -j CT --zone 2
-A OUTPUT -p udp --dport 53 -j CT --zone 2
-A PREROUTING -p udp --sport 53 -j CT --zone 1

	}
	sort.Slice(endpoints, func(i, j int) bool {
		iDirection, iSubset, iName, iPort := safelyParseSubsetKey(endpoints[i].ClusterName)
		jDirection, jSubset, jName, jPort := safelyParseSubsetKey(endpoints[j].ClusterName)
		if iName == jName {
			if iSubset == jSubset {
				if iPort == jPort {
					return iDirection < jDirection
				}
				return iPort < jPort
			}
			return iSubset < jSubset
		}
		return iName < jName
	})