}

func (conf *resolverConfig) releaseSema() {
	<-conf.ch
}

func (r *Resolver) lookup(ctx context.Context, name string, qtype dnsmessage.Type, conf *dnsConfig) (dnsmessage.Parser, string, error) {
	if !isDomainName(name) {
		// We used to use "invalid domain name" as the error,
		// but that is a detail of the specific lookup mechanism.
		// Other lookups might allow broader name syntax

	if err != nil {
		return "", nil, err
	}
	if cname != "" && !isDomainName(cname) {
		return "", nil, &DNSError{Err: "SRV header name is invalid", Name: name}
	}
	filteredAddrs := make([]*SRV, 0, len(addrs))
	for _, addr := range addrs {
		if addr == nil {
			continue
		}
		if !isDomainName(addr.Target) {
			continue
		}
		filteredAddrs = append(filteredAddrs, addr)
	}

	return t.Year() >= 1601
}

// isCookieDomainName reports whether s is a valid domain name or a valid
// domain name with a leading dot '.'.  It is almost a direct copy of
// package net's isDomainName.
func isCookieDomainName(s string) bool {
	if len(s) == 0 {
		return false
	}
	if len(s) > 255 {
		return false
	}

	if s[0] == '.' {

		}
		globalRootDiskThreshold = size
	}

	domains := env.Get(config.EnvDomain, "")
	if len(domains) != 0 {
		for _, domainName := range strings.Split(domains, config.ValueSeparator) {
			if _, ok := dns2.IsDomainName(domainName); !ok {
				logger.Fatal(config.ErrInvalidDomainValue(nil).Msg("Unknown value `%s`", domainName),
					"Invalid MINIO_DOMAIN value in environment variable")
			}