rx := regexp.MustCompile(`(?m)^([a-z0-9.\-]+)\s+mail exchanger\s*=\s*([0-9]+)\s*([a-z0-9.\-]+)$`)
	for _, ans := range rx.FindAllStringSubmatch(r, -1) {
		pref, _, _ := dtoi(ans[2])
		mx = append(mx, &MX{absDomainName(ans[3]), uint16(pref)})
	}
	// windows nslookup syntax
	// gmail.com       MX preference = 30, mail exchanger = alt3.gmail-smtp-in.l.google.com

	zoneCache.RUnlock()
	if !ok && !updated {
		zoneCache.update(nil, true)
		zoneCache.RLock()
		index, ok = zoneCache.toIndex[name]
		zoneCache.RUnlock()
	}
	if !ok { // last resort
		index, _, _ = dtoi(name)
	}
	return index

		return
	}

	var parseError error
	atoi := func(s string) int {
		x, err := strconv.Atoi(s)
		if err != nil && parseError == nil {
			parseError = err
		}
		return x
	}
	var major, minor, patch int
	major = atoi(string(matches[1]))
	if len(matches[2]) > 0 {
		minor = atoi(string(matches[2][1:]))
	}
	if len(matches[3]) > 0 {
		patch = atoi(string(matches[3][1:]))
	}
	if parseError != nil {

	}

	if err = config.CheckValidKeys(config.ILMSubSys, kvs, DefaultKVS); err != nil {
		return cfg, err
	}

	tw, err := strconv.Atoi(env.Get(EnvILMTransitionWorkers, kvs.GetWithDefault(transitionWorkers, DefaultKVS)))
	if err != nil {
		return cfg, err
	}

	ew, err := strconv.Atoi(env.Get(EnvILMExpirationWorkers, kvs.GetWithDefault(expirationWorkers, DefaultKVS)))
	if err != nil {
		return cfg, err
	}

		t.Run(vector.Name, func(t *testing.T) {
			setup := parseVectorSetup(vector.Setup)

			kemID, err := strconv.Atoi(setup["kem_id"])
			if err != nil {
				t.Fatal(err)
			}
			if _, ok := SupportedKEMs[uint16(kemID)]; !ok {
				t.Skip("unsupported KEM")
			}
			kdfID, err := strconv.Atoi(setup["kdf_id"])
			if err != nil {
				t.Fatal(err)
			}
			if _, ok := SupportedKDFs[uint16(kdfID)]; !ok {

	}
	cfg.IOCount, err = strconv.Atoi(env.Get(EnvIOCount, kvs.GetWithDefault(IOCount, DefaultKVS)))
	if err != nil {
		return cfg, fmt.Errorf("'heal:max_io' value invalid: %w", err)
	}
	if ws := env.Get(EnvDriveWorkers, kvs.GetWithDefault(DriveWorkers, DefaultKVS)); ws != "" {
		w, err := strconv.Atoi(ws)
		if err != nil {

	if err != nil {
		return -1
	}
	v, err := strconv.Atoi(clusterVersion.Major + clusterVersion.Minor)
	if err != nil {
		// Apparently some clusters don't put proper numbers here. Try GitVersion
		vp, err := version.ParseGeneric(clusterVersion.GitVersion)
		if err != nil {
			// no good
			return -1
		}
		np, err := strconv.Atoi(fmt.Sprintf("%d%d", vp.Major(), vp.Minor()))
		if err != nil {
			// no good...

// it is a String, will attempt a conversion to int,
// returning 0 if a parsing error occurs.
func (intstr *IntOrString) IntValue() int {
	if intstr.Type == String {
		i, _ := strconv.Atoi(intstr.StrVal)
		return i
	}
	return int(intstr.IntVal)
}

// MarshalJSON implements the json.Marshaller interface.
func (intstr IntOrString) MarshalJSON() ([]byte, error) {
	switch intstr.Type {

	}
	if err != nil {
		return nil, fmt.Errorf("user: lookup username %s: %v", username, err)
	}
	return buildUser(&pwd), err
}

func lookupUserId(uid string) (*User, error) {
	i, e := strconv.Atoi(uid)
	if e != nil {
		return nil, e
	}
	return lookupUnixUid(i)
}

func lookupUnixUid(uid int) (*User, error) {
	var pwd _C_struct_passwd
	var found bool

)

// GetExpiryDuration - return parsed expiry duration.
func (l Config) GetExpiryDuration(dsecs string) (time.Duration, error) {
	if dsecs == "" {
		return defaultExpiry, nil
	}

	d, err := strconv.Atoi(dsecs)
	if err != nil {
		return 0, auth.ErrInvalidDuration
	}

	dur := time.Duration(d) * time.Second

	if dur < minExpiry || dur > maxExpiry {
		return 0, auth.ErrInvalidDuration
	}
	return dur, nil
}