[chore]: Bump github.com/miekg/dns from 1.1.56 to 1.1.57 (#2439)

Bumps [github.com/miekg/dns](https://github.com/miekg/dns) from 1.1.56 to 1.1.57.
- [Changelog](https://github.com/miekg/dns/blob/master/Makefile.release)
- [Commits](https://github.com/miekg/dns/compare/v1.1.56...v1.1.57)

---
updated-dependencies:
- dependency-name: github.com/miekg/dns
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

go.mod

@@ -36,7 +36,7 @@ require (
 	github.com/h2non/filetype v1.1.3
 	github.com/jackc/pgx/v5 v5.5.0
 	github.com/microcosm-cc/bluemonday v1.0.26
-	github.com/miekg/dns v1.1.56
+	github.com/miekg/dns v1.1.57
 	github.com/minio/minio-go/v7 v7.0.65
 	github.com/mitchellh/mapstructure v1.5.0
 	github.com/oklog/ulid v1.3.1
@@ -172,7 +172,7 @@ require (
 	go.opentelemetry.io/proto/otlp v1.0.0 // indirect
 	golang.org/x/arch v0.5.0 // indirect
 	golang.org/x/mod v0.12.0 // indirect
-	golang.org/x/sync v0.3.0 // indirect
+	golang.org/x/sync v0.4.0 // indirect
 	golang.org/x/sys v0.15.0 // indirect
 	golang.org/x/tools v0.13.0 // indirect
 	google.golang.org/appengine v1.6.8 // indirect

go.sum

@@ -399,8 +399,8 @@ github.com/matttproud/golang_protobuf_extensions v1.0.4 h1:mmDVorXM7PCGKw94cs5zk
 github.com/matttproud/golang_protobuf_extensions v1.0.4/go.mod h1:BSXmuO+STAnVfrANrmjBb36TMTDstsz7MSK+HVaYKv4=
 github.com/microcosm-cc/bluemonday v1.0.26 h1:xbqSvqzQMeEHCqMi64VAs4d8uy6Mequs3rQ0k/Khz58=
 github.com/microcosm-cc/bluemonday v1.0.26/go.mod h1:JyzOCs9gkyQyjs+6h10UEVSe02CGwkhd72Xdqh78TWs=
-github.com/miekg/dns v1.1.56 h1:5imZaSeoRNvpM9SzWNhEcP9QliKiz20/dA2QabIGVnE=
-github.com/miekg/dns v1.1.56/go.mod h1:cRm6Oo2C8TY9ZS/TqsSrseAcncm74lfK5G+ikN2SWWY=
+github.com/miekg/dns v1.1.57 h1:Jzi7ApEIzwEPLHWRcafCN9LZSBbqQpxjt/wpgvg7wcM=
+github.com/miekg/dns v1.1.57/go.mod h1:uqRjCRUuEAA6qsOiJvDd+CFo/vW+y5WR6SNmHE55hZk=
 github.com/minio/md5-simd v1.1.2 h1:Gdi1DZK69+ZVMoNHRXJyNcxrMA4dSxoYHZSQbirFg34=
 github.com/minio/md5-simd v1.1.2/go.mod h1:MzdKDxYpY2BT9XQFocsiZf/NKVtR7nkE4RoEpN+20RM=
 github.com/minio/minio-go/v7 v7.0.65 h1:sOlB8T3nQK+TApTpuN3k4WD5KasvZIE3vVFzyyCa0go=
@@ -740,8 +740,8 @@ golang.org/x/sync v0.0.0-20200625203802-6e8e738ad208/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20201207232520-09787c993a3a/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.3.0 h1:ftCYgMx6zT/asHUrPw8BLLscYtGznsLAnjq5RH9P66E=
-golang.org/x/sync v0.3.0/go.mod h1:FU7BRWz2tNW+3quACPkgCx/L+uEAv1htQ0V83Z9Rj+Y=
+golang.org/x/sync v0.4.0 h1:zxkM55ReGkDlKSM+Fu41A+zmbZuaPVbGMzvvdUPznYQ=
+golang.org/x/sync v0.4.0/go.mod h1:FU7BRWz2tNW+3quACPkgCx/L+uEAv1htQ0V83Z9Rj+Y=
 golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=

vendor/github.com/miekg/dns/acceptfunc.go

@@ -10,8 +10,6 @@ type MsgAcceptFunc func(dh Header) MsgAcceptAction
 //
 // * opcode isn't OpcodeQuery or OpcodeNotify
 //
-// * Zero bit isn't zero
-//
 // * does not have exactly 1 question in the question section
 //
 // * has more than 1 RR in the Answer section

vendor/github.com/miekg/dns/defaults.go

@@ -5,7 +5,6 @@ import (
 	"net"
 	"strconv"
 	"strings"
-	"unicode"
 )
 
 const hexDigit = "0123456789abcdef"
@@ -23,8 +22,7 @@ func (dns *Msg) SetReply(request *Msg) *Msg {
 	}
 	dns.Rcode = RcodeSuccess
 	if len(request.Question) > 0 {
-		dns.Question = make([]Question, 1)
-		dns.Question[0] = request.Question[0]
+		dns.Question = []Question{request.Question[0]}
 	}
 	return dns
 }
@@ -293,26 +291,19 @@ func IsFqdn(s string) bool {
 	return (len(s)-i)%2 != 0
 }
 
-// IsRRset checks if a set of RRs is a valid RRset as defined by RFC 2181.
-// This means the RRs need to have the same type, name, and class. Returns true
-// if the RR set is valid, otherwise false.
+// IsRRset reports whether a set of RRs is a valid RRset as defined by RFC 2181.
+// This means the RRs need to have the same type, name, and class.
 func IsRRset(rrset []RR) bool {
 	if len(rrset) == 0 {
 		return false
 	}
-	if len(rrset) == 1 {
-		return true
-	}
-	rrHeader := rrset[0].Header()
-	rrType := rrHeader.Rrtype
-	rrClass := rrHeader.Class
-	rrName := rrHeader.Name
 
+	baseH := rrset[0].Header()
 	for _, rr := range rrset[1:] {
-		curRRHeader := rr.Header()
-		if curRRHeader.Rrtype != rrType || curRRHeader.Class != rrClass || curRRHeader.Name != rrName {
+		curH := rr.Header()
+		if curH.Rrtype != baseH.Rrtype || curH.Class != baseH.Class || curH.Name != baseH.Name {
 			// Mismatch between the records, so this is not a valid rrset for
-			//signing/verifying
+			// signing/verifying
 			return false
 		}
 	}
@@ -330,19 +321,15 @@ func Fqdn(s string) string {
 }
 
 // CanonicalName returns the domain name in canonical form. A name in canonical
-// form is lowercase and fully qualified. See Section 6.2 in RFC 4034.
-// According to the RFC all uppercase US-ASCII letters in the owner name of the
-// RR areeplaced by the corresponding lowercase US-ASCII letters.
+// form is lowercase and fully qualified. Only US-ASCII letters are affected. See
+// Section 6.2 in RFC 4034.
 func CanonicalName(s string) string {
-	var result strings.Builder
-	for _, ch := range s {
-		if unicode.IsUpper(ch) && (ch >= 0x00 && ch <= 0x7F) {
-			result.WriteRune(unicode.ToLower(ch))
-		} else {
-			result.WriteRune(ch)
+	return strings.Map(func(r rune) rune {
+		if r >= 'A' && r <= 'Z' {
+			r += 'a' - 'A'
 		}
-	}
-	return Fqdn(result.String())
+		return r
+	}, Fqdn(s))
 }
 
 // Copied from the official Go code.

vendor/github.com/miekg/dns/dnssec_keyscan.go

@@ -37,7 +37,8 @@ func (k *DNSKEY) ReadPrivateKey(q io.Reader, file string) (crypto.PrivateKey, er
 		return nil, ErrPrivKey
 	}
 	// TODO(mg): check if the pubkey matches the private key
-	algo, err := strconv.ParseUint(strings.SplitN(m["algorithm"], " ", 2)[0], 10, 8)
+	algoStr, _, _ := strings.Cut(m["algorithm"], " ")
+	algo, err := strconv.ParseUint(algoStr, 10, 8)
 	if err != nil {
 		return nil, ErrPrivKey
 	}

vendor/github.com/miekg/dns/edns.go

@@ -185,7 +185,7 @@ func (rr *OPT) Do() bool {
 
 // SetDo sets the DO (DNSSEC OK) bit.
 // If we pass an argument, set the DO bit to that value.
-// It is possible to pass 2 or more arguments. Any arguments after the 1st is silently ignored.
+// It is possible to pass 2 or more arguments, but they will be ignored.
 func (rr *OPT) SetDo(do ...bool) {
 	if len(do) == 1 {
 		if do[0] {
@@ -508,6 +508,7 @@ func (e *EDNS0_LLQ) String() string {
 		" " + strconv.FormatUint(uint64(e.LeaseLife), 10)
 	return s
 }
+
 func (e *EDNS0_LLQ) copy() EDNS0 {
 	return &EDNS0_LLQ{e.Code, e.Version, e.Opcode, e.Error, e.Id, e.LeaseLife}
 }

vendor/github.com/miekg/dns/generate.go

@@ -35,17 +35,17 @@ func (zp *ZoneParser) generate(l lex) (RR, bool) {
 		token = token[:i]
 	}
 
-	sx := strings.SplitN(token, "-", 2)
-	if len(sx) != 2 {
+	startStr, endStr, ok := strings.Cut(token, "-")
+	if !ok {
 		return zp.setParseError("bad start-stop in $GENERATE range", l)
 	}
 
-	start, err := strconv.ParseInt(sx[0], 10, 64)
+	start, err := strconv.ParseInt(startStr, 10, 64)
 	if err != nil {
 		return zp.setParseError("bad start in $GENERATE range", l)
 	}
 
-	end, err := strconv.ParseInt(sx[1], 10, 64)
+	end, err := strconv.ParseInt(endStr, 10, 64)
 	if err != nil {
 		return zp.setParseError("bad stop in $GENERATE range", l)
 	}
@@ -54,7 +54,7 @@ func (zp *ZoneParser) generate(l lex) (RR, bool) {
 	}
 
 	// _BLANK
-	l, ok := zp.c.Next()
+	l, ok = zp.c.Next()
 	if !ok || l.value != zBlank {
 		return zp.setParseError("garbage after $GENERATE range", l)
 	}
@@ -211,15 +211,16 @@ func (r *generateReader) ReadByte() (byte, error) {
 func modToPrintf(s string) (string, int64, string) {
 	// Modifier is { offset [ ,width [ ,base ] ] } - provide default
 	// values for optional width and type, if necessary.
-	var offStr, widthStr, base string
-	switch xs := strings.Split(s, ","); len(xs) {
-	case 1:
-		offStr, widthStr, base = xs[0], "0", "d"
-	case 2:
-		offStr, widthStr, base = xs[0], xs[1], "d"
-	case 3:
-		offStr, widthStr, base = xs[0], xs[1], xs[2]
-	default:
+	offStr, s, ok0 := strings.Cut(s, ",")
+	widthStr, s, ok1 := strings.Cut(s, ",")
+	base, _, ok2 := strings.Cut(s, ",")
+	if !ok0 {
+		widthStr = "0"
+	}
+	if !ok1 {
+		base = "d"
+	}
+	if ok2 {
 		return "", 0, "bad modifier in $GENERATE"
 	}
 
@@ -234,8 +235,8 @@ func modToPrintf(s string) (string, int64, string) {
 		return "", 0, "bad offset in $GENERATE"
 	}
 
-	width, err := strconv.ParseInt(widthStr, 10, 64)
-	if err != nil || width < 0 || width > 255 {
+	width, err := strconv.ParseUint(widthStr, 10, 8)
+	if err != nil {
 		return "", 0, "bad width in $GENERATE"
 	}
 

vendor/github.com/miekg/dns/listen_no_reuseport.go

@@ -7,16 +7,18 @@ import "net"
 
 const supportsReusePort = false
 
-func listenTCP(network, addr string, reuseport bool) (net.Listener, error) {
-	if reuseport {
+func listenTCP(network, addr string, reuseport, reuseaddr bool) (net.Listener, error) {
+	if reuseport || reuseaddr {
 		// TODO(tmthrgd): return an error?
 	}
 
 	return net.Listen(network, addr)
 }
 
-func listenUDP(network, addr string, reuseport bool) (net.PacketConn, error) {
-	if reuseport {
+const supportsReuseAddr = false
+
+func listenUDP(network, addr string, reuseport, reuseaddr bool) (net.PacketConn, error) {
+	if reuseport || reuseaddr {
 		// TODO(tmthrgd): return an error?
 	}
 

vendor/github.com/miekg/dns/listen_reuseport.go

@@ -25,19 +25,41 @@ func reuseportControl(network, address string, c syscall.RawConn) error {
 	return opErr
 }
 
-func listenTCP(network, addr string, reuseport bool) (net.Listener, error) {
+const supportsReuseAddr = true
+
+func reuseaddrControl(network, address string, c syscall.RawConn) error {
+	var opErr error
+	err := c.Control(func(fd uintptr) {
+		opErr = unix.SetsockoptInt(int(fd), unix.SOL_SOCKET, unix.SO_REUSEADDR, 1)
+	})
+	if err != nil {
+		return err
+	}
+
+	return opErr
+}
+
+func listenTCP(network, addr string, reuseport, reuseaddr bool) (net.Listener, error) {
 	var lc net.ListenConfig
-	if reuseport {
+	switch {
+	case reuseaddr && reuseport:
+	case reuseport:
 		lc.Control = reuseportControl
+	case reuseaddr:
+		lc.Control = reuseaddrControl
 	}
 
 	return lc.Listen(context.Background(), network, addr)
 }
 
-func listenUDP(network, addr string, reuseport bool) (net.PacketConn, error) {
+func listenUDP(network, addr string, reuseport, reuseaddr bool) (net.PacketConn, error) {
 	var lc net.ListenConfig
-	if reuseport {
+	switch {
+	case reuseaddr && reuseport:
+	case reuseport:
 		lc.Control = reuseportControl
+	case reuseaddr:
+		lc.Control = reuseaddrControl
 	}
 
 	return lc.ListenPacket(context.Background(), network, addr)

vendor/github.com/miekg/dns/msg.go

@@ -501,30 +501,28 @@ func packTxtString(s string, msg []byte, offset int) (int, error) {
 	return offset, nil
 }
 
-func packOctetString(s string, msg []byte, offset int, tmp []byte) (int, error) {
-	if offset >= len(msg) || len(s) > len(tmp) {
+func packOctetString(s string, msg []byte, offset int) (int, error) {
+	if offset >= len(msg) || len(s) > 256*4+1 {
 		return offset, ErrBuf
 	}
-	bs := tmp[:len(s)]
-	copy(bs, s)
-	for i := 0; i < len(bs); i++ {
+	for i := 0; i < len(s); i++ {
 		if len(msg) <= offset {
 			return offset, ErrBuf
 		}
-		if bs[i] == '\\' {
+		if s[i] == '\\' {
 			i++
-			if i == len(bs) {
+			if i == len(s) {
 				break
 			}
 			// check for \DDD
-			if isDDD(bs[i:]) {
-				msg[offset] = dddToByte(bs[i:])
+			if isDDD(s[i:]) {
+				msg[offset] = dddToByte(s[i:])
 				i += 2
 			} else {
-				msg[offset] = bs[i]
+				msg[offset] = s[i]
 			}
 		} else {
-			msg[offset] = bs[i]
+			msg[offset] = s[i]
 		}
 		offset++
 	}

vendor/github.com/miekg/dns/msg_helpers.go

@@ -20,9 +20,7 @@ func unpackDataA(msg []byte, off int) (net.IP, int, error) {
 	if off+net.IPv4len > len(msg) {
 		return nil, len(msg), &Error{err: "overflow unpacking a"}
 	}
-	a := append(make(net.IP, 0, net.IPv4len), msg[off:off+net.IPv4len]...)
-	off += net.IPv4len
-	return a, off, nil
+	return cloneSlice(msg[off : off+net.IPv4len]), off + net.IPv4len, nil
 }
 
 func packDataA(a net.IP, msg []byte, off int) (int, error) {
@@ -47,9 +45,7 @@ func unpackDataAAAA(msg []byte, off int) (net.IP, int, error) {
 	if off+net.IPv6len > len(msg) {
 		return nil, len(msg), &Error{err: "overflow unpacking aaaa"}
 	}
-	aaaa := append(make(net.IP, 0, net.IPv6len), msg[off:off+net.IPv6len]...)
-	off += net.IPv6len
-	return aaaa, off, nil
+	return cloneSlice(msg[off : off+net.IPv6len]), off + net.IPv6len, nil
 }
 
 func packDataAAAA(aaaa net.IP, msg []byte, off int) (int, error) {
@@ -410,29 +406,24 @@ func packStringTxt(s []string, msg []byte, off int) (int, error) {
 
 func unpackDataOpt(msg []byte, off int) ([]EDNS0, int, error) {
 	var edns []EDNS0
-Option:
-	var code uint16
-	if off+4 > len(msg) {
-		return nil, len(msg), &Error{err: "overflow unpacking opt"}
+	for off < len(msg) {
+		if off+4 > len(msg) {
+			return nil, len(msg), &Error{err: "overflow unpacking opt"}
+		}
+		code := binary.BigEndian.Uint16(msg[off:])
+		off += 2
+		optlen := binary.BigEndian.Uint16(msg[off:])
+		off += 2
+		if off+int(optlen) > len(msg) {
+			return nil, len(msg), &Error{err: "overflow unpacking opt"}
+		}
+		opt := makeDataOpt(code)
+		if err := opt.unpack(msg[off : off+int(optlen)]); err != nil {
+			return nil, len(msg), err
+		}
+		edns = append(edns, opt)
+		off += int(optlen)
 	}
-	code = binary.BigEndian.Uint16(msg[off:])
-	off += 2
-	optlen := binary.BigEndian.Uint16(msg[off:])
-	off += 2
-	if off+int(optlen) > len(msg) {
-		return nil, len(msg), &Error{err: "overflow unpacking opt"}
-	}
-	e := makeDataOpt(code)
-	if err := e.unpack(msg[off : off+int(optlen)]); err != nil {
-		return nil, len(msg), err
-	}
-	edns = append(edns, e)
-	off += int(optlen)
-
-	if off < len(msg) {
-		goto Option
-	}
-
 	return edns, off, nil
 }
 
@@ -461,8 +452,7 @@ func unpackStringOctet(msg []byte, off int) (string, int, error) {
 }
 
 func packStringOctet(s string, msg []byte, off int) (int, error) {
-	txtTmp := make([]byte, 256*4+1)
-	off, err := packOctetString(s, msg, off, txtTmp)
+	off, err := packOctetString(s, msg, off)
 	if err != nil {
 		return len(msg), err
 	}

vendor/github.com/miekg/dns/scan.go

@@ -605,8 +605,6 @@ func (zp *ZoneParser) Next() (RR, bool) {
 			if !isPrivate && zp.c.Peek().token == "" {
 				// This is a dynamic update rr.
 
-				// TODO(tmthrgd): Previously slurpRemainder was only called
-				// for certain RR types, which may have been important.
 				if err := slurpRemainder(zp.c); err != nil {
 					return zp.setParseError(err.err, err.lex)
 				}
@@ -1216,42 +1214,34 @@ func stringToCm(token string) (e, m uint8, ok bool) {
 	if token[len(token)-1] == 'M' || token[len(token)-1] == 'm' {
 		token = token[0 : len(token)-1]
 	}
-	s := strings.SplitN(token, ".", 2)
-	var meters, cmeters, val int
-	var err error
-	switch len(s) {
-	case 2:
-		if cmeters, err = strconv.Atoi(s[1]); err != nil {
-			return
-		}
+
+	var (
+		meters, cmeters, val int
+		err                  error
+	)
+	mStr, cmStr, hasCM := strings.Cut(token, ".")
+	if hasCM {
 		// There's no point in having more than 2 digits in this part, and would rather make the implementation complicated ('123' should be treated as '12').
 		// So we simply reject it.
 		// We also make sure the first character is a digit to reject '+-' signs.
-		if len(s[1]) > 2 || s[1][0] < '0' || s[1][0] > '9' {
+		cmeters, err = strconv.Atoi(cmStr)
+		if err != nil || len(cmStr) > 2 || cmStr[0] < '0' || cmStr[0] > '9' {
 			return
 		}
-		if len(s[1]) == 1 {
+		if len(cmStr) == 1 {
 			// 'nn.1' must be treated as 'nn-meters and 10cm, not 1cm.
 			cmeters *= 10
 		}
-		if s[0] == "" {
-			// This will allow omitting the 'meter' part, like .01 (meaning 0.01m = 1cm).
-			break
-		}
-		fallthrough
-	case 1:
-		if meters, err = strconv.Atoi(s[0]); err != nil {
-			return
-		}
-		// RFC1876 states the max value is 90000000.00.  The latter two conditions enforce it.
-		if s[0][0] < '0' || s[0][0] > '9' || meters > 90000000 || (meters == 90000000 && cmeters != 0) {
-			return
-		}
-	case 0:
-		// huh?
-		return 0, 0, false
 	}
-	ok = true
+	// This slighly ugly condition will allow omitting the 'meter' part, like .01 (meaning 0.01m = 1cm).
+	if !hasCM || mStr != "" {
+		meters, err = strconv.Atoi(mStr)
+		// RFC1876 states the max value is 90000000.00.  The latter two conditions enforce it.
+		if err != nil || mStr[0] < '0' || mStr[0] > '9' || meters > 90000000 || (meters == 90000000 && cmeters != 0) {
+			return
+		}
+	}
+
 	if meters > 0 {
 		e = 2
 		val = meters
@@ -1263,8 +1253,7 @@ func stringToCm(token string) (e, m uint8, ok bool) {
 		e++
 		val /= 10
 	}
-	m = uint8(val)
-	return
+	return e, uint8(val), true
 }
 
 func toAbsoluteName(name, origin string) (absolute string, ok bool) {

vendor/github.com/miekg/dns/scan_rr.go

@@ -1,7 +1,6 @@
 package dns
 
 import (
-	"bytes"
 	"encoding/base64"
 	"errors"
 	"net"
@@ -12,15 +11,15 @@ import (
 // A remainder of the rdata with embedded spaces, return the parsed string (sans the spaces)
 // or an error
 func endingToString(c *zlexer, errstr string) (string, *ParseError) {
-	var buffer bytes.Buffer
+	var s strings.Builder
 	l, _ := c.Next() // zString
 	for l.value != zNewline && l.value != zEOF {
 		if l.err {
-			return buffer.String(), &ParseError{"", errstr, l}
+			return s.String(), &ParseError{"", errstr, l}
 		}
 		switch l.value {
 		case zString:
-			buffer.WriteString(l.token)
+			s.WriteString(l.token)
 		case zBlank: // Ok
 		default:
 			return "", &ParseError{"", errstr, l}
@@ -28,7 +27,7 @@ func endingToString(c *zlexer, errstr string) (string, *ParseError) {
 		l, _ = c.Next()
 	}
 
-	return buffer.String(), nil
+	return s.String(), nil
 }
 
 // A remainder of the rdata with embedded spaces, split on unquoted whitespace

vendor/github.com/miekg/dns/server.go

@@ -226,6 +226,10 @@ type Server struct {
 	// Whether to set the SO_REUSEPORT socket option, allowing multiple listeners to be bound to a single address.
 	// It is only supported on certain GOOSes and when using ListenAndServe.
 	ReusePort bool
+	// Whether to set the SO_REUSEADDR socket option, allowing multiple listeners to be bound to a single address.
+	// Crucially this allows binding when an existing server is listening on `0.0.0.0` or `::`.
+	// It is only supported on certain GOOSes and when using ListenAndServe.
+	ReuseAddr bool
 	// AcceptMsgFunc will check the incoming message and will reject it early in the process.
 	// By default DefaultMsgAcceptFunc will be used.
 	MsgAcceptFunc MsgAcceptFunc
@@ -304,7 +308,7 @@ func (srv *Server) ListenAndServe() error {
 
 	switch srv.Net {
 	case "tcp", "tcp4", "tcp6":
-		l, err := listenTCP(srv.Net, addr, srv.ReusePort)
+		l, err := listenTCP(srv.Net, addr, srv.ReusePort, srv.ReuseAddr)
 		if err != nil {
 			return err
 		}
@@ -317,7 +321,7 @@ func (srv *Server) ListenAndServe() error {
 			return errors.New("dns: neither Certificates nor GetCertificate set in Config")
 		}
 		network := strings.TrimSuffix(srv.Net, "-tls")
-		l, err := listenTCP(network, addr, srv.ReusePort)
+		l, err := listenTCP(network, addr, srv.ReusePort, srv.ReuseAddr)
 		if err != nil {
 			return err
 		}
@@ -327,7 +331,7 @@ func (srv *Server) ListenAndServe() error {
 		unlock()
 		return srv.serveTCP(l)
 	case "udp", "udp4", "udp6":
-		l, err := listenUDP(srv.Net, addr, srv.ReusePort)
+		l, err := listenUDP(srv.Net, addr, srv.ReusePort, srv.ReuseAddr)
 		if err != nil {
 			return err
 		}

vendor/github.com/miekg/dns/svcb.go

@@ -314,10 +314,11 @@ func (s *SVCBMandatory) unpack(b []byte) error {
 }
 
 func (s *SVCBMandatory) parse(b string) error {
-	str := strings.Split(b, ",")
-	codes := make([]SVCBKey, 0, len(str))
-	for _, e := range str {
-		codes = append(codes, svcbStringToKey(e))
+	codes := make([]SVCBKey, 0, strings.Count(b, ",")+1)
+	for len(b) > 0 {
+		var key string
+		key, b, _ = strings.Cut(b, ",")
+		codes = append(codes, svcbStringToKey(key))
 	}
 	s.Code = codes
 	return nil
@@ -613,19 +614,24 @@ func (s *SVCBIPv4Hint) String() string {
 }
 
 func (s *SVCBIPv4Hint) parse(b string) error {
+	if b == "" {
+		return errors.New("dns: svcbipv4hint: empty hint")
+	}
 	if strings.Contains(b, ":") {
 		return errors.New("dns: svcbipv4hint: expected ipv4, got ipv6")
 	}
-	str := strings.Split(b, ",")
-	dst := make([]net.IP, len(str))
-	for i, e := range str {
+
+	hint := make([]net.IP, 0, strings.Count(b, ",")+1)
+	for len(b) > 0 {
+		var e string
+		e, b, _ = strings.Cut(b, ",")
 		ip := net.ParseIP(e).To4()
 		if ip == nil {
 			return errors.New("dns: svcbipv4hint: bad ip")
 		}
-		dst[i] = ip
+		hint = append(hint, ip)
 	}
-	s.Hint = dst
+	s.Hint = hint
 	return nil
 }
 
@@ -733,9 +739,14 @@ func (s *SVCBIPv6Hint) String() string {
 }
 
 func (s *SVCBIPv6Hint) parse(b string) error {
-	str := strings.Split(b, ",")
-	dst := make([]net.IP, len(str))
-	for i, e := range str {
+	if b == "" {
+		return errors.New("dns: svcbipv6hint: empty hint")
+	}
+
+	hint := make([]net.IP, 0, strings.Count(b, ",")+1)
+	for len(b) > 0 {
+		var e string
+		e, b, _ = strings.Cut(b, ",")
 		ip := net.ParseIP(e)
 		if ip == nil {
 			return errors.New("dns: svcbipv6hint: bad ip")
@@ -743,9 +754,9 @@ func (s *SVCBIPv6Hint) parse(b string) error {
 		if ip.To4() != nil {
 			return errors.New("dns: svcbipv6hint: expected ipv6, got ipv4-mapped-ipv6")
 		}
-		dst[i] = ip
+		hint = append(hint, ip)
 	}
-	s.Hint = dst
+	s.Hint = hint
 	return nil
 }
 

vendor/github.com/miekg/dns/version.go

@@ -3,7 +3,7 @@ package dns
 import "fmt"
 
 // Version is current version of this library.
-var Version = v{1, 1, 56}
+var Version = v{1, 1, 57}
 
 // v holds the version of this library.
 type v struct {

vendor/github.com/miekg/dns/xfr.go

@@ -80,8 +80,13 @@ func (t *Transfer) In(q *Msg, a string) (env chan *Envelope, err error) {
 
 func (t *Transfer) inAxfr(q *Msg, c chan *Envelope) {
 	first := true
-	defer t.Close()
-	defer close(c)
+	defer func() {
+		// First close the connection, then the channel. This allows functions blocked on
+		// the channel to assume that the connection is closed and no further operations are
+		// pending when they resume.
+		t.Close()
+		close(c)
+	}()
 	timeout := dnsTimeout
 	if t.ReadTimeout != 0 {
 		timeout = t.ReadTimeout
@@ -131,8 +136,13 @@ func (t *Transfer) inIxfr(q *Msg, c chan *Envelope) {
 	axfr := true
 	n := 0
 	qser := q.Ns[0].(*SOA).Serial
-	defer t.Close()
-	defer close(c)
+	defer func() {
+		// First close the connection, then the channel. This allows functions blocked on
+		// the channel to assume that the connection is closed and no further operations are
+		// pending when they resume.
+		t.Close()
+		close(c)
+	}()
 	timeout := dnsTimeout
 	if t.ReadTimeout != 0 {
 		timeout = t.ReadTimeout

vendor/modules.txt

@@ -376,7 +376,7 @@ github.com/matttproud/golang_protobuf_extensions/pbutil
 ## explicit; go 1.21
 github.com/microcosm-cc/bluemonday
 github.com/microcosm-cc/bluemonday/css
-# github.com/miekg/dns v1.1.56
+# github.com/miekg/dns v1.1.57
 ## explicit; go 1.19
 github.com/miekg/dns
 # github.com/minio/md5-simd v1.1.2
@@ -905,7 +905,7 @@ golang.org/x/net/trace
 ## explicit; go 1.18
 golang.org/x/oauth2
 golang.org/x/oauth2/internal
-# golang.org/x/sync v0.3.0
+# golang.org/x/sync v0.4.0
 ## explicit; go 1.17
 golang.org/x/sync/semaphore
 # golang.org/x/sys v0.15.0