From 8f91c777559748fa6e857d9fc1f4ae079a532813 Mon Sep 17 00:00:00 2001
From: Christopher Speller <crspeller@gmail.com>
Date: Mon, 3 Oct 2016 16:03:15 -0400
Subject: Adding ability to serve TLS directly from Mattermost server (#4119)

---
 vendor/github.com/miekg/dns/scan_rr.go | 2143 ++++++++++++++++++++++++++++++++
 1 file changed, 2143 insertions(+)
 create mode 100644 vendor/github.com/miekg/dns/scan_rr.go

(limited to 'vendor/github.com/miekg/dns/scan_rr.go')

diff --git a/vendor/github.com/miekg/dns/scan_rr.go b/vendor/github.com/miekg/dns/scan_rr.go
new file mode 100644
index 000000000..e521dc063
--- /dev/null
+++ b/vendor/github.com/miekg/dns/scan_rr.go
@@ -0,0 +1,2143 @@
+package dns
+
+import (
+	"encoding/base64"
+	"net"
+	"strconv"
+	"strings"
+)
+
+type parserFunc struct {
+	// Func defines the function that parses the tokens and returns the RR
+	// or an error. The last string contains any comments in the line as
+	// they returned by the lexer as well.
+	Func func(h RR_Header, c chan lex, origin string, file string) (RR, *ParseError, string)
+	// Signals if the RR ending is of variable length, like TXT or records
+	// that have Hexadecimal or Base64 as their last element in the Rdata. Records
+	// that have a fixed ending or for instance A, AAAA, SOA and etc.
+	Variable bool
+}
+
+// Parse the rdata of each rrtype.
+// All data from the channel c is either zString or zBlank.
+// After the rdata there may come a zBlank and then a zNewline
+// or immediately a zNewline. If this is not the case we flag
+// an *ParseError: garbage after rdata.
+func setRR(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	parserfunc, ok := typeToparserFunc[h.Rrtype]
+	if ok {
+		r, e, cm := parserfunc.Func(h, c, o, f)
+		if parserfunc.Variable {
+			return r, e, cm
+		}
+		if e != nil {
+			return nil, e, ""
+		}
+		e, cm = slurpRemainder(c, f)
+		if e != nil {
+			return nil, e, ""
+		}
+		return r, nil, cm
+	}
+	// RFC3957 RR (Unknown RR handling)
+	return setRFC3597(h, c, o, f)
+}
+
+// A remainder of the rdata with embedded spaces, return the parsed string (sans the spaces)
+// or an error
+func endingToString(c chan lex, errstr, f string) (string, *ParseError, string) {
+	s := ""
+	l := <-c // zString
+	for l.value != zNewline && l.value != zEOF {
+		if l.err {
+			return s, &ParseError{f, errstr, l}, ""
+		}
+		switch l.value {
+		case zString:
+			s += l.token
+		case zBlank: // Ok
+		default:
+			return "", &ParseError{f, errstr, l}, ""
+		}
+		l = <-c
+	}
+	return s, nil, l.comment
+}
+
+// A remainder of the rdata with embedded spaces, return the parsed string slice (sans the spaces)
+// or an error
+func endingToTxtSlice(c chan lex, errstr, f string) ([]string, *ParseError, string) {
+	// Get the remaining data until we see a zNewline
+	quote := false
+	l := <-c
+	var s []string
+	if l.err {
+		return s, &ParseError{f, errstr, l}, ""
+	}
+	switch l.value == zQuote {
+	case true: // A number of quoted string
+		s = make([]string, 0)
+		empty := true
+		for l.value != zNewline && l.value != zEOF {
+			if l.err {
+				return nil, &ParseError{f, errstr, l}, ""
+			}
+			switch l.value {
+			case zString:
+				empty = false
+				if len(l.token) > 255 {
+					// split up tokens that are larger than 255 into 255-chunks
+					sx := []string{}
+					p, i := 0, 255
+					for {
+						if i <= len(l.token) {
+							sx = append(sx, l.token[p:i])
+						} else {
+							sx = append(sx, l.token[p:])
+							break
+
+						}
+						p, i = p+255, i+255
+					}
+					s = append(s, sx...)
+					break
+				}
+
+				s = append(s, l.token)
+			case zBlank:
+				if quote {
+					// zBlank can only be seen in between txt parts.
+					return nil, &ParseError{f, errstr, l}, ""
+				}
+			case zQuote:
+				if empty && quote {
+					s = append(s, "")
+				}
+				quote = !quote
+				empty = true
+			default:
+				return nil, &ParseError{f, errstr, l}, ""
+			}
+			l = <-c
+		}
+		if quote {
+			return nil, &ParseError{f, errstr, l}, ""
+		}
+	case false: // Unquoted text record
+		s = make([]string, 1)
+		for l.value != zNewline && l.value != zEOF {
+			if l.err {
+				return s, &ParseError{f, errstr, l}, ""
+			}
+			s[0] += l.token
+			l = <-c
+		}
+	}
+	return s, nil, l.comment
+}
+
+func setA(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(A)
+	rr.Hdr = h
+
+	l := <-c
+	if l.length == 0 { // Dynamic updates.
+		return rr, nil, ""
+	}
+	rr.A = net.ParseIP(l.token)
+	if rr.A == nil || l.err {
+		return nil, &ParseError{f, "bad A A", l}, ""
+	}
+	return rr, nil, ""
+}
+
+func setAAAA(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(AAAA)
+	rr.Hdr = h
+
+	l := <-c
+	if l.length == 0 {
+		return rr, nil, ""
+	}
+	rr.AAAA = net.ParseIP(l.token)
+	if rr.AAAA == nil || l.err {
+		return nil, &ParseError{f, "bad AAAA AAAA", l}, ""
+	}
+	return rr, nil, ""
+}
+
+func setNS(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(NS)
+	rr.Hdr = h
+
+	l := <-c
+	rr.Ns = l.token
+	if l.length == 0 {
+		return rr, nil, ""
+	}
+	if l.token == "@" {
+		rr.Ns = o
+		return rr, nil, ""
+	}
+	_, ok := IsDomainName(l.token)
+	if !ok || l.length == 0 || l.err {
+		return nil, &ParseError{f, "bad NS Ns", l}, ""
+	}
+	if rr.Ns[l.length-1] != '.' {
+		rr.Ns = appendOrigin(rr.Ns, o)
+	}
+	return rr, nil, ""
+}
+
+func setPTR(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(PTR)
+	rr.Hdr = h
+
+	l := <-c
+	rr.Ptr = l.token
+	if l.length == 0 { // dynamic update rr.
+		return rr, nil, ""
+	}
+	if l.token == "@" {
+		rr.Ptr = o
+		return rr, nil, ""
+	}
+	_, ok := IsDomainName(l.token)
+	if !ok || l.length == 0 || l.err {
+		return nil, &ParseError{f, "bad PTR Ptr", l}, ""
+	}
+	if rr.Ptr[l.length-1] != '.' {
+		rr.Ptr = appendOrigin(rr.Ptr, o)
+	}
+	return rr, nil, ""
+}
+
+func setNSAPPTR(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(NSAPPTR)
+	rr.Hdr = h
+
+	l := <-c
+	rr.Ptr = l.token
+	if l.length == 0 {
+		return rr, nil, ""
+	}
+	if l.token == "@" {
+		rr.Ptr = o
+		return rr, nil, ""
+	}
+	_, ok := IsDomainName(l.token)
+	if !ok || l.length == 0 || l.err {
+		return nil, &ParseError{f, "bad NSAP-PTR Ptr", l}, ""
+	}
+	if rr.Ptr[l.length-1] != '.' {
+		rr.Ptr = appendOrigin(rr.Ptr, o)
+	}
+	return rr, nil, ""
+}
+
+func setRP(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(RP)
+	rr.Hdr = h
+
+	l := <-c
+	rr.Mbox = l.token
+	if l.length == 0 {
+		return rr, nil, ""
+	}
+	if l.token == "@" {
+		rr.Mbox = o
+	} else {
+		_, ok := IsDomainName(l.token)
+		if !ok || l.length == 0 || l.err {
+			return nil, &ParseError{f, "bad RP Mbox", l}, ""
+		}
+		if rr.Mbox[l.length-1] != '.' {
+			rr.Mbox = appendOrigin(rr.Mbox, o)
+		}
+	}
+	<-c // zBlank
+	l = <-c
+	rr.Txt = l.token
+	if l.token == "@" {
+		rr.Txt = o
+		return rr, nil, ""
+	}
+	_, ok := IsDomainName(l.token)
+	if !ok || l.length == 0 || l.err {
+		return nil, &ParseError{f, "bad RP Txt", l}, ""
+	}
+	if rr.Txt[l.length-1] != '.' {
+		rr.Txt = appendOrigin(rr.Txt, o)
+	}
+	return rr, nil, ""
+}
+
+func setMR(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(MR)
+	rr.Hdr = h
+
+	l := <-c
+	rr.Mr = l.token
+	if l.length == 0 {
+		return rr, nil, ""
+	}
+	if l.token == "@" {
+		rr.Mr = o
+		return rr, nil, ""
+	}
+	_, ok := IsDomainName(l.token)
+	if !ok || l.length == 0 || l.err {
+		return nil, &ParseError{f, "bad MR Mr", l}, ""
+	}
+	if rr.Mr[l.length-1] != '.' {
+		rr.Mr = appendOrigin(rr.Mr, o)
+	}
+	return rr, nil, ""
+}
+
+func setMB(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(MB)
+	rr.Hdr = h
+
+	l := <-c
+	rr.Mb = l.token
+	if l.length == 0 {
+		return rr, nil, ""
+	}
+	if l.token == "@" {
+		rr.Mb = o
+		return rr, nil, ""
+	}
+	_, ok := IsDomainName(l.token)
+	if !ok || l.length == 0 || l.err {
+		return nil, &ParseError{f, "bad MB Mb", l}, ""
+	}
+	if rr.Mb[l.length-1] != '.' {
+		rr.Mb = appendOrigin(rr.Mb, o)
+	}
+	return rr, nil, ""
+}
+
+func setMG(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(MG)
+	rr.Hdr = h
+
+	l := <-c
+	rr.Mg = l.token
+	if l.length == 0 {
+		return rr, nil, ""
+	}
+	if l.token == "@" {
+		rr.Mg = o
+		return rr, nil, ""
+	}
+	_, ok := IsDomainName(l.token)
+	if !ok || l.length == 0 || l.err {
+		return nil, &ParseError{f, "bad MG Mg", l}, ""
+	}
+	if rr.Mg[l.length-1] != '.' {
+		rr.Mg = appendOrigin(rr.Mg, o)
+	}
+	return rr, nil, ""
+}
+
+func setHINFO(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(HINFO)
+	rr.Hdr = h
+
+	chunks, e, c1 := endingToTxtSlice(c, "bad HINFO Fields", f)
+	if e != nil {
+		return nil, e, c1
+	}
+
+	if ln := len(chunks); ln == 0 {
+		return rr, nil, ""
+	} else if ln == 1 {
+		// Can we split it?
+		if out := strings.Fields(chunks[0]); len(out) > 1 {
+			chunks = out
+		} else {
+			chunks = append(chunks, "")
+		}
+	}
+
+	rr.Cpu = chunks[0]
+	rr.Os = strings.Join(chunks[1:], " ")
+
+	return rr, nil, ""
+}
+
+func setMINFO(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(MINFO)
+	rr.Hdr = h
+
+	l := <-c
+	rr.Rmail = l.token
+	if l.length == 0 {
+		return rr, nil, ""
+	}
+	if l.token == "@" {
+		rr.Rmail = o
+	} else {
+		_, ok := IsDomainName(l.token)
+		if !ok || l.length == 0 || l.err {
+			return nil, &ParseError{f, "bad MINFO Rmail", l}, ""
+		}
+		if rr.Rmail[l.length-1] != '.' {
+			rr.Rmail = appendOrigin(rr.Rmail, o)
+		}
+	}
+	<-c // zBlank
+	l = <-c
+	rr.Email = l.token
+	if l.token == "@" {
+		rr.Email = o
+		return rr, nil, ""
+	}
+	_, ok := IsDomainName(l.token)
+	if !ok || l.length == 0 || l.err {
+		return nil, &ParseError{f, "bad MINFO Email", l}, ""
+	}
+	if rr.Email[l.length-1] != '.' {
+		rr.Email = appendOrigin(rr.Email, o)
+	}
+	return rr, nil, ""
+}
+
+func setMF(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(MF)
+	rr.Hdr = h
+
+	l := <-c
+	rr.Mf = l.token
+	if l.length == 0 {
+		return rr, nil, ""
+	}
+	if l.token == "@" {
+		rr.Mf = o
+		return rr, nil, ""
+	}
+	_, ok := IsDomainName(l.token)
+	if !ok || l.length == 0 || l.err {
+		return nil, &ParseError{f, "bad MF Mf", l}, ""
+	}
+	if rr.Mf[l.length-1] != '.' {
+		rr.Mf = appendOrigin(rr.Mf, o)
+	}
+	return rr, nil, ""
+}
+
+func setMD(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(MD)
+	rr.Hdr = h
+
+	l := <-c
+	rr.Md = l.token
+	if l.length == 0 {
+		return rr, nil, ""
+	}
+	if l.token == "@" {
+		rr.Md = o
+		return rr, nil, ""
+	}
+	_, ok := IsDomainName(l.token)
+	if !ok || l.length == 0 || l.err {
+		return nil, &ParseError{f, "bad MD Md", l}, ""
+	}
+	if rr.Md[l.length-1] != '.' {
+		rr.Md = appendOrigin(rr.Md, o)
+	}
+	return rr, nil, ""
+}
+
+func setMX(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(MX)
+	rr.Hdr = h
+
+	l := <-c
+	if l.length == 0 {
+		return rr, nil, ""
+	}
+	i, e := strconv.Atoi(l.token)
+	if e != nil || l.err {
+		return nil, &ParseError{f, "bad MX Pref", l}, ""
+	}
+	rr.Preference = uint16(i)
+	<-c     // zBlank
+	l = <-c // zString
+	rr.Mx = l.token
+	if l.token == "@" {
+		rr.Mx = o
+		return rr, nil, ""
+	}
+	_, ok := IsDomainName(l.token)
+	if !ok || l.length == 0 || l.err {
+		return nil, &ParseError{f, "bad MX Mx", l}, ""
+	}
+	if rr.Mx[l.length-1] != '.' {
+		rr.Mx = appendOrigin(rr.Mx, o)
+	}
+	return rr, nil, ""
+}
+
+func setRT(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(RT)
+	rr.Hdr = h
+	l := <-c
+	if l.length == 0 {
+		return rr, nil, ""
+	}
+	i, e := strconv.Atoi(l.token)
+	if e != nil {
+		return nil, &ParseError{f, "bad RT Preference", l}, ""
+	}
+	rr.Preference = uint16(i)
+	<-c     // zBlank
+	l = <-c // zString
+	rr.Host = l.token
+	if l.token == "@" {
+		rr.Host = o
+		return rr, nil, ""
+	}
+	_, ok := IsDomainName(l.token)
+	if !ok || l.length == 0 || l.err {
+		return nil, &ParseError{f, "bad RT Host", l}, ""
+	}
+	if rr.Host[l.length-1] != '.' {
+		rr.Host = appendOrigin(rr.Host, o)
+	}
+	return rr, nil, ""
+}
+
+func setAFSDB(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(AFSDB)
+	rr.Hdr = h
+
+	l := <-c
+	if l.length == 0 {
+		return rr, nil, ""
+	}
+	i, e := strconv.Atoi(l.token)
+	if e != nil || l.err {
+		return nil, &ParseError{f, "bad AFSDB Subtype", l}, ""
+	}
+	rr.Subtype = uint16(i)
+	<-c     // zBlank
+	l = <-c // zString
+	rr.Hostname = l.token
+	if l.token == "@" {
+		rr.Hostname = o
+		return rr, nil, ""
+	}
+	_, ok := IsDomainName(l.token)
+	if !ok || l.length == 0 || l.err {
+		return nil, &ParseError{f, "bad AFSDB Hostname", l}, ""
+	}
+	if rr.Hostname[l.length-1] != '.' {
+		rr.Hostname = appendOrigin(rr.Hostname, o)
+	}
+	return rr, nil, ""
+}
+
+func setX25(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(X25)
+	rr.Hdr = h
+
+	l := <-c
+	if l.length == 0 {
+		return rr, nil, ""
+	}
+	if l.err {
+		return nil, &ParseError{f, "bad X25 PSDNAddress", l}, ""
+	}
+	rr.PSDNAddress = l.token
+	return rr, nil, ""
+}
+
+func setKX(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(KX)
+	rr.Hdr = h
+
+	l := <-c
+	if l.length == 0 {
+		return rr, nil, ""
+	}
+	i, e := strconv.Atoi(l.token)
+	if e != nil || l.err {
+		return nil, &ParseError{f, "bad KX Pref", l}, ""
+	}
+	rr.Preference = uint16(i)
+	<-c     // zBlank
+	l = <-c // zString
+	rr.Exchanger = l.token
+	if l.token == "@" {
+		rr.Exchanger = o
+		return rr, nil, ""
+	}
+	_, ok := IsDomainName(l.token)
+	if !ok || l.length == 0 || l.err {
+		return nil, &ParseError{f, "bad KX Exchanger", l}, ""
+	}
+	if rr.Exchanger[l.length-1] != '.' {
+		rr.Exchanger = appendOrigin(rr.Exchanger, o)
+	}
+	return rr, nil, ""
+}
+
+func setCNAME(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(CNAME)
+	rr.Hdr = h
+
+	l := <-c
+	rr.Target = l.token
+	if l.length == 0 {
+		return rr, nil, ""
+	}
+	if l.token == "@" {
+		rr.Target = o
+		return rr, nil, ""
+	}
+	_, ok := IsDomainName(l.token)
+	if !ok || l.length == 0 || l.err {
+		return nil, &ParseError{f, "bad CNAME Target", l}, ""
+	}
+	if rr.Target[l.length-1] != '.' {
+		rr.Target = appendOrigin(rr.Target, o)
+	}
+	return rr, nil, ""
+}
+
+func setDNAME(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(DNAME)
+	rr.Hdr = h
+
+	l := <-c
+	rr.Target = l.token
+	if l.length == 0 {
+		return rr, nil, ""
+	}
+	if l.token == "@" {
+		rr.Target = o
+		return rr, nil, ""
+	}
+	_, ok := IsDomainName(l.token)
+	if !ok || l.length == 0 || l.err {
+		return nil, &ParseError{f, "bad CNAME Target", l}, ""
+	}
+	if rr.Target[l.length-1] != '.' {
+		rr.Target = appendOrigin(rr.Target, o)
+	}
+	return rr, nil, ""
+}
+
+func setSOA(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(SOA)
+	rr.Hdr = h
+
+	l := <-c
+	rr.Ns = l.token
+	if l.length == 0 {
+		return rr, nil, ""
+	}
+	<-c // zBlank
+	if l.token == "@" {
+		rr.Ns = o
+	} else {
+		_, ok := IsDomainName(l.token)
+		if !ok || l.length == 0 || l.err {
+			return nil, &ParseError{f, "bad SOA Ns", l}, ""
+		}
+		if rr.Ns[l.length-1] != '.' {
+			rr.Ns = appendOrigin(rr.Ns, o)
+		}
+	}
+
+	l = <-c
+	rr.Mbox = l.token
+	if l.token == "@" {
+		rr.Mbox = o
+	} else {
+		_, ok := IsDomainName(l.token)
+		if !ok || l.length == 0 || l.err {
+			return nil, &ParseError{f, "bad SOA Mbox", l}, ""
+		}
+		if rr.Mbox[l.length-1] != '.' {
+			rr.Mbox = appendOrigin(rr.Mbox, o)
+		}
+	}
+	<-c // zBlank
+
+	var (
+		v  uint32
+		ok bool
+	)
+	for i := 0; i < 5; i++ {
+		l = <-c
+		if l.err {
+			return nil, &ParseError{f, "bad SOA zone parameter", l}, ""
+		}
+		if j, e := strconv.Atoi(l.token); e != nil {
+			if i == 0 {
+				// Serial should be a number
+				return nil, &ParseError{f, "bad SOA zone parameter", l}, ""
+			}
+			if v, ok = stringToTtl(l.token); !ok {
+				return nil, &ParseError{f, "bad SOA zone parameter", l}, ""
+
+			}
+		} else {
+			v = uint32(j)
+		}
+		switch i {
+		case 0:
+			rr.Serial = v
+			<-c // zBlank
+		case 1:
+			rr.Refresh = v
+			<-c // zBlank
+		case 2:
+			rr.Retry = v
+			<-c // zBlank
+		case 3:
+			rr.Expire = v
+			<-c // zBlank
+		case 4:
+			rr.Minttl = v
+		}
+	}
+	return rr, nil, ""
+}
+
+func setSRV(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(SRV)
+	rr.Hdr = h
+
+	l := <-c
+	if l.length == 0 {
+		return rr, nil, ""
+	}
+	i, e := strconv.Atoi(l.token)
+	if e != nil || l.err {
+		return nil, &ParseError{f, "bad SRV Priority", l}, ""
+	}
+	rr.Priority = uint16(i)
+	<-c     // zBlank
+	l = <-c // zString
+	i, e = strconv.Atoi(l.token)
+	if e != nil || l.err {
+		return nil, &ParseError{f, "bad SRV Weight", l}, ""
+	}
+	rr.Weight = uint16(i)
+	<-c     // zBlank
+	l = <-c // zString
+	i, e = strconv.Atoi(l.token)
+	if e != nil || l.err {
+		return nil, &ParseError{f, "bad SRV Port", l}, ""
+	}
+	rr.Port = uint16(i)
+	<-c     // zBlank
+	l = <-c // zString
+	rr.Target = l.token
+	if l.token == "@" {
+		rr.Target = o
+		return rr, nil, ""
+	}
+	_, ok := IsDomainName(l.token)
+	if !ok || l.length == 0 || l.err {
+		return nil, &ParseError{f, "bad SRV Target", l}, ""
+	}
+	if rr.Target[l.length-1] != '.' {
+		rr.Target = appendOrigin(rr.Target, o)
+	}
+	return rr, nil, ""
+}
+
+func setNAPTR(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(NAPTR)
+	rr.Hdr = h
+
+	l := <-c
+	if l.length == 0 {
+		return rr, nil, ""
+	}
+	i, e := strconv.Atoi(l.token)
+	if e != nil || l.err {
+		return nil, &ParseError{f, "bad NAPTR Order", l}, ""
+	}
+	rr.Order = uint16(i)
+	<-c     // zBlank
+	l = <-c // zString
+	i, e = strconv.Atoi(l.token)
+	if e != nil || l.err {
+		return nil, &ParseError{f, "bad NAPTR Preference", l}, ""
+	}
+	rr.Preference = uint16(i)
+	// Flags
+	<-c     // zBlank
+	l = <-c // _QUOTE
+	if l.value != zQuote {
+		return nil, &ParseError{f, "bad NAPTR Flags", l}, ""
+	}
+	l = <-c // Either String or Quote
+	if l.value == zString {
+		rr.Flags = l.token
+		l = <-c // _QUOTE
+		if l.value != zQuote {
+			return nil, &ParseError{f, "bad NAPTR Flags", l}, ""
+		}
+	} else if l.value == zQuote {
+		rr.Flags = ""
+	} else {
+		return nil, &ParseError{f, "bad NAPTR Flags", l}, ""
+	}
+
+	// Service
+	<-c     // zBlank
+	l = <-c // _QUOTE
+	if l.value != zQuote {
+		return nil, &ParseError{f, "bad NAPTR Service", l}, ""
+	}
+	l = <-c // Either String or Quote
+	if l.value == zString {
+		rr.Service = l.token
+		l = <-c // _QUOTE
+		if l.value != zQuote {
+			return nil, &ParseError{f, "bad NAPTR Service", l}, ""
+		}
+	} else if l.value == zQuote {
+		rr.Service = ""
+	} else {
+		return nil, &ParseError{f, "bad NAPTR Service", l}, ""
+	}
+
+	// Regexp
+	<-c     // zBlank
+	l = <-c // _QUOTE
+	if l.value != zQuote {
+		return nil, &ParseError{f, "bad NAPTR Regexp", l}, ""
+	}
+	l = <-c // Either String or Quote
+	if l.value == zString {
+		rr.Regexp = l.token
+		l = <-c // _QUOTE
+		if l.value != zQuote {
+			return nil, &ParseError{f, "bad NAPTR Regexp", l}, ""
+		}
+	} else if l.value == zQuote {
+		rr.Regexp = ""
+	} else {
+		return nil, &ParseError{f, "bad NAPTR Regexp", l}, ""
+	}
+	// After quote no space??
+	<-c     // zBlank
+	l = <-c // zString
+	rr.Replacement = l.token
+	if l.token == "@" {
+		rr.Replacement = o
+		return rr, nil, ""
+	}
+	_, ok := IsDomainName(l.token)
+	if !ok || l.length == 0 || l.err {
+		return nil, &ParseError{f, "bad NAPTR Replacement", l}, ""
+	}
+	if rr.Replacement[l.length-1] != '.' {
+		rr.Replacement = appendOrigin(rr.Replacement, o)
+	}
+	return rr, nil, ""
+}
+
+func setTALINK(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(TALINK)
+	rr.Hdr = h
+
+	l := <-c
+	rr.PreviousName = l.token
+	if l.length == 0 {
+		return rr, nil, ""
+	}
+	if l.token == "@" {
+		rr.PreviousName = o
+	} else {
+		_, ok := IsDomainName(l.token)
+		if !ok || l.length == 0 || l.err {
+			return nil, &ParseError{f, "bad TALINK PreviousName", l}, ""
+		}
+		if rr.PreviousName[l.length-1] != '.' {
+			rr.PreviousName = appendOrigin(rr.PreviousName, o)
+		}
+	}
+	<-c // zBlank
+	l = <-c
+	rr.NextName = l.token
+	if l.token == "@" {
+		rr.NextName = o
+		return rr, nil, ""
+	}
+	_, ok := IsDomainName(l.token)
+	if !ok || l.length == 0 || l.err {
+		return nil, &ParseError{f, "bad TALINK NextName", l}, ""
+	}
+	if rr.NextName[l.length-1] != '.' {
+		rr.NextName = appendOrigin(rr.NextName, o)
+	}
+	return rr, nil, ""
+}
+
+func setLOC(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(LOC)
+	rr.Hdr = h
+	// Non zero defaults for LOC record, see RFC 1876, Section 3.
+	rr.HorizPre = 165 // 10000
+	rr.VertPre = 162  // 10
+	rr.Size = 18      // 1
+	ok := false
+	// North
+	l := <-c
+	if l.length == 0 {
+		return rr, nil, ""
+	}
+	i, e := strconv.Atoi(l.token)
+	if e != nil || l.err {
+		return nil, &ParseError{f, "bad LOC Latitude", l}, ""
+	}
+	rr.Latitude = 1000 * 60 * 60 * uint32(i)
+
+	<-c // zBlank
+	// Either number, 'N' or 'S'
+	l = <-c
+	if rr.Latitude, ok = locCheckNorth(l.token, rr.Latitude); ok {
+		goto East
+	}
+	i, e = strconv.Atoi(l.token)
+	if e != nil || l.err {
+		return nil, &ParseError{f, "bad LOC Latitude minutes", l}, ""
+	}
+	rr.Latitude += 1000 * 60 * uint32(i)
+
+	<-c // zBlank
+	l = <-c
+	if i, e := strconv.ParseFloat(l.token, 32); e != nil || l.err {
+		return nil, &ParseError{f, "bad LOC Latitude seconds", l}, ""
+	} else {
+		rr.Latitude += uint32(1000 * i)
+	}
+	<-c // zBlank
+	// Either number, 'N' or 'S'
+	l = <-c
+	if rr.Latitude, ok = locCheckNorth(l.token, rr.Latitude); ok {
+		goto East
+	}
+	// If still alive, flag an error
+	return nil, &ParseError{f, "bad LOC Latitude North/South", l}, ""
+
+East:
+	// East
+	<-c // zBlank
+	l = <-c
+	if i, e := strconv.Atoi(l.token); e != nil || l.err {
+		return nil, &ParseError{f, "bad LOC Longitude", l}, ""
+	} else {
+		rr.Longitude = 1000 * 60 * 60 * uint32(i)
+	}
+	<-c // zBlank
+	// Either number, 'E' or 'W'
+	l = <-c
+	if rr.Longitude, ok = locCheckEast(l.token, rr.Longitude); ok {
+		goto Altitude
+	}
+	if i, e := strconv.Atoi(l.token); e != nil || l.err {
+		return nil, &ParseError{f, "bad LOC Longitude minutes", l}, ""
+	} else {
+		rr.Longitude += 1000 * 60 * uint32(i)
+	}
+	<-c // zBlank
+	l = <-c
+	if i, e := strconv.ParseFloat(l.token, 32); e != nil || l.err {
+		return nil, &ParseError{f, "bad LOC Longitude seconds", l}, ""
+	} else {
+		rr.Longitude += uint32(1000 * i)
+	}
+	<-c // zBlank
+	// Either number, 'E' or 'W'
+	l = <-c
+	if rr.Longitude, ok = locCheckEast(l.token, rr.Longitude); ok {
+		goto Altitude
+	}
+	// If still alive, flag an error
+	return nil, &ParseError{f, "bad LOC Longitude East/West", l}, ""
+
+Altitude:
+	<-c // zBlank
+	l = <-c
+	if l.length == 0 || l.err {
+		return nil, &ParseError{f, "bad LOC Altitude", l}, ""
+	}
+	if l.token[len(l.token)-1] == 'M' || l.token[len(l.token)-1] == 'm' {
+		l.token = l.token[0 : len(l.token)-1]
+	}
+	if i, e := strconv.ParseFloat(l.token, 32); e != nil {
+		return nil, &ParseError{f, "bad LOC Altitude", l}, ""
+	} else {
+		rr.Altitude = uint32(i*100.0 + 10000000.0 + 0.5)
+	}
+
+	// And now optionally the other values
+	l = <-c
+	count := 0
+	for l.value != zNewline && l.value != zEOF {
+		switch l.value {
+		case zString:
+			switch count {
+			case 0: // Size
+				e, m, ok := stringToCm(l.token)
+				if !ok {
+					return nil, &ParseError{f, "bad LOC Size", l}, ""
+				}
+				rr.Size = (e & 0x0f) | (m << 4 & 0xf0)
+			case 1: // HorizPre
+				e, m, ok := stringToCm(l.token)
+				if !ok {
+					return nil, &ParseError{f, "bad LOC HorizPre", l}, ""
+				}
+				rr.HorizPre = (e & 0x0f) | (m << 4 & 0xf0)
+			case 2: // VertPre
+				e, m, ok := stringToCm(l.token)
+				if !ok {
+					return nil, &ParseError{f, "bad LOC VertPre", l}, ""
+				}
+				rr.VertPre = (e & 0x0f) | (m << 4 & 0xf0)
+			}
+			count++
+		case zBlank:
+			// Ok
+		default:
+			return nil, &ParseError{f, "bad LOC Size, HorizPre or VertPre", l}, ""
+		}
+		l = <-c
+	}
+	return rr, nil, ""
+}
+
+func setHIP(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(HIP)
+	rr.Hdr = h
+
+	// HitLength is not represented
+	l := <-c
+	if l.length == 0 {
+		return rr, nil, l.comment
+	}
+	i, e := strconv.Atoi(l.token)
+	if e != nil || l.err {
+		return nil, &ParseError{f, "bad HIP PublicKeyAlgorithm", l}, ""
+	}
+	rr.PublicKeyAlgorithm = uint8(i)
+	<-c     // zBlank
+	l = <-c // zString
+	if l.length == 0 || l.err {
+		return nil, &ParseError{f, "bad HIP Hit", l}, ""
+	}
+	rr.Hit = l.token // This can not contain spaces, see RFC 5205 Section 6.
+	rr.HitLength = uint8(len(rr.Hit)) / 2
+
+	<-c     // zBlank
+	l = <-c // zString
+	if l.length == 0 || l.err {
+		return nil, &ParseError{f, "bad HIP PublicKey", l}, ""
+	}
+	rr.PublicKey = l.token // This cannot contain spaces
+	rr.PublicKeyLength = uint16(base64.StdEncoding.DecodedLen(len(rr.PublicKey)))
+
+	// RendezvousServers (if any)
+	l = <-c
+	var xs []string
+	for l.value != zNewline && l.value != zEOF {
+		switch l.value {
+		case zString:
+			if l.token == "@" {
+				xs = append(xs, o)
+				l = <-c
+				continue
+			}
+			_, ok := IsDomainName(l.token)
+			if !ok || l.length == 0 || l.err {
+				return nil, &ParseError{f, "bad HIP RendezvousServers", l}, ""
+			}
+			if l.token[l.length-1] != '.' {
+				l.token = appendOrigin(l.token, o)
+			}
+			xs = append(xs, l.token)
+		case zBlank:
+			// Ok
+		default:
+			return nil, &ParseError{f, "bad HIP RendezvousServers", l}, ""
+		}
+		l = <-c
+	}
+	rr.RendezvousServers = xs
+	return rr, nil, l.comment
+}
+
+func setCERT(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(CERT)
+	rr.Hdr = h
+
+	l := <-c
+	if l.length == 0 {
+		return rr, nil, l.comment
+	}
+	if v, ok := StringToCertType[l.token]; ok {
+		rr.Type = v
+	} else if i, e := strconv.Atoi(l.token); e != nil {
+		return nil, &ParseError{f, "bad CERT Type", l}, ""
+	} else {
+		rr.Type = uint16(i)
+	}
+	<-c     // zBlank
+	l = <-c // zString
+	i, e := strconv.Atoi(l.token)
+	if e != nil || l.err {
+		return nil, &ParseError{f, "bad CERT KeyTag", l}, ""
+	}
+	rr.KeyTag = uint16(i)
+	<-c     // zBlank
+	l = <-c // zString
+	if v, ok := StringToAlgorithm[l.token]; ok {
+		rr.Algorithm = v
+	} else if i, e := strconv.Atoi(l.token); e != nil {
+		return nil, &ParseError{f, "bad CERT Algorithm", l}, ""
+	} else {
+		rr.Algorithm = uint8(i)
+	}
+	s, e1, c1 := endingToString(c, "bad CERT Certificate", f)
+	if e1 != nil {
+		return nil, e1, c1
+	}
+	rr.Certificate = s
+	return rr, nil, c1
+}
+
+func setOPENPGPKEY(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(OPENPGPKEY)
+	rr.Hdr = h
+
+	s, e, c1 := endingToString(c, "bad OPENPGPKEY PublicKey", f)
+	if e != nil {
+		return nil, e, c1
+	}
+	rr.PublicKey = s
+	return rr, nil, c1
+}
+
+func setSIG(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	r, e, s := setRRSIG(h, c, o, f)
+	if r != nil {
+		return &SIG{*r.(*RRSIG)}, e, s
+	}
+	return nil, e, s
+}
+
+func setRRSIG(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(RRSIG)
+	rr.Hdr = h
+	l := <-c
+	if l.length == 0 {
+		return rr, nil, l.comment
+	}
+	if t, ok := StringToType[l.tokenUpper]; !ok {
+		if strings.HasPrefix(l.tokenUpper, "TYPE") {
+			t, ok = typeToInt(l.tokenUpper)
+			if !ok {
+				return nil, &ParseError{f, "bad RRSIG Typecovered", l}, ""
+			}
+			rr.TypeCovered = t
+		} else {
+			return nil, &ParseError{f, "bad RRSIG Typecovered", l}, ""
+		}
+	} else {
+		rr.TypeCovered = t
+	}
+	<-c // zBlank
+	l = <-c
+	i, err := strconv.Atoi(l.token)
+	if err != nil || l.err {
+		return nil, &ParseError{f, "bad RRSIG Algorithm", l}, ""
+	}
+	rr.Algorithm = uint8(i)
+	<-c // zBlank
+	l = <-c
+	i, err = strconv.Atoi(l.token)
+	if err != nil || l.err {
+		return nil, &ParseError{f, "bad RRSIG Labels", l}, ""
+	}
+	rr.Labels = uint8(i)
+	<-c // zBlank
+	l = <-c
+	i, err = strconv.Atoi(l.token)
+	if err != nil || l.err {
+		return nil, &ParseError{f, "bad RRSIG OrigTtl", l}, ""
+	}
+	rr.OrigTtl = uint32(i)
+	<-c // zBlank
+	l = <-c
+	if i, err := StringToTime(l.token); err != nil {
+		// Try to see if all numeric and use it as epoch
+		if i, err := strconv.ParseInt(l.token, 10, 64); err == nil {
+			// TODO(miek): error out on > MAX_UINT32, same below
+			rr.Expiration = uint32(i)
+		} else {
+			return nil, &ParseError{f, "bad RRSIG Expiration", l}, ""
+		}
+	} else {
+		rr.Expiration = i
+	}
+	<-c // zBlank
+	l = <-c
+	if i, err := StringToTime(l.token); err != nil {
+		if i, err := strconv.ParseInt(l.token, 10, 64); err == nil {
+			rr.Inception = uint32(i)
+		} else {
+			return nil, &ParseError{f, "bad RRSIG Inception", l}, ""
+		}
+	} else {
+		rr.Inception = i
+	}
+	<-c // zBlank
+	l = <-c
+	i, err = strconv.Atoi(l.token)
+	if err != nil || l.err {
+		return nil, &ParseError{f, "bad RRSIG KeyTag", l}, ""
+	}
+	rr.KeyTag = uint16(i)
+	<-c // zBlank
+	l = <-c
+	rr.SignerName = l.token
+	if l.token == "@" {
+		rr.SignerName = o
+	} else {
+		_, ok := IsDomainName(l.token)
+		if !ok || l.length == 0 || l.err {
+			return nil, &ParseError{f, "bad RRSIG SignerName", l}, ""
+		}
+		if rr.SignerName[l.length-1] != '.' {
+			rr.SignerName = appendOrigin(rr.SignerName, o)
+		}
+	}
+	s, e, c1 := endingToString(c, "bad RRSIG Signature", f)
+	if e != nil {
+		return nil, e, c1
+	}
+	rr.Signature = s
+	return rr, nil, c1
+}
+
+func setNSEC(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(NSEC)
+	rr.Hdr = h
+
+	l := <-c
+	rr.NextDomain = l.token
+	if l.length == 0 {
+		return rr, nil, l.comment
+	}
+	if l.token == "@" {
+		rr.NextDomain = o
+	} else {
+		_, ok := IsDomainName(l.token)
+		if !ok || l.length == 0 || l.err {
+			return nil, &ParseError{f, "bad NSEC NextDomain", l}, ""
+		}
+		if rr.NextDomain[l.length-1] != '.' {
+			rr.NextDomain = appendOrigin(rr.NextDomain, o)
+		}
+	}
+
+	rr.TypeBitMap = make([]uint16, 0)
+	var (
+		k  uint16
+		ok bool
+	)
+	l = <-c
+	for l.value != zNewline && l.value != zEOF {
+		switch l.value {
+		case zBlank:
+			// Ok
+		case zString:
+			if k, ok = StringToType[l.tokenUpper]; !ok {
+				if k, ok = typeToInt(l.tokenUpper); !ok {
+					return nil, &ParseError{f, "bad NSEC TypeBitMap", l}, ""
+				}
+			}
+			rr.TypeBitMap = append(rr.TypeBitMap, k)
+		default:
+			return nil, &ParseError{f, "bad NSEC TypeBitMap", l}, ""
+		}
+		l = <-c
+	}
+	return rr, nil, l.comment
+}
+
+func setNSEC3(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(NSEC3)
+	rr.Hdr = h
+
+	l := <-c
+	if l.length == 0 {
+		return rr, nil, l.comment
+	}
+	i, e := strconv.Atoi(l.token)
+	if e != nil || l.err {
+		return nil, &ParseError{f, "bad NSEC3 Hash", l}, ""
+	}
+	rr.Hash = uint8(i)
+	<-c // zBlank
+	l = <-c
+	i, e = strconv.Atoi(l.token)
+	if e != nil || l.err {
+		return nil, &ParseError{f, "bad NSEC3 Flags", l}, ""
+	}
+	rr.Flags = uint8(i)
+	<-c // zBlank
+	l = <-c
+	i, e = strconv.Atoi(l.token)
+	if e != nil || l.err {
+		return nil, &ParseError{f, "bad NSEC3 Iterations", l}, ""
+	}
+	rr.Iterations = uint16(i)
+	<-c
+	l = <-c
+	if len(l.token) == 0 || l.err {
+		return nil, &ParseError{f, "bad NSEC3 Salt", l}, ""
+	}
+	rr.SaltLength = uint8(len(l.token)) / 2
+	rr.Salt = l.token
+
+	<-c
+	l = <-c
+	if len(l.token) == 0 || l.err {
+		return nil, &ParseError{f, "bad NSEC3 NextDomain", l}, ""
+	}
+	rr.HashLength = 20 // Fix for NSEC3 (sha1 160 bits)
+	rr.NextDomain = l.token
+
+	rr.TypeBitMap = make([]uint16, 0)
+	var (
+		k  uint16
+		ok bool
+	)
+	l = <-c
+	for l.value != zNewline && l.value != zEOF {
+		switch l.value {
+		case zBlank:
+			// Ok
+		case zString:
+			if k, ok = StringToType[l.tokenUpper]; !ok {
+				if k, ok = typeToInt(l.tokenUpper); !ok {
+					return nil, &ParseError{f, "bad NSEC3 TypeBitMap", l}, ""
+				}
+			}
+			rr.TypeBitMap = append(rr.TypeBitMap, k)
+		default:
+			return nil, &ParseError{f, "bad NSEC3 TypeBitMap", l}, ""
+		}
+		l = <-c
+	}
+	return rr, nil, l.comment
+}
+
+func setNSEC3PARAM(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(NSEC3PARAM)
+	rr.Hdr = h
+
+	l := <-c
+	if l.length == 0 {
+		return rr, nil, ""
+	}
+	i, e := strconv.Atoi(l.token)
+	if e != nil || l.err {
+		return nil, &ParseError{f, "bad NSEC3PARAM Hash", l}, ""
+	}
+	rr.Hash = uint8(i)
+	<-c // zBlank
+	l = <-c
+	i, e = strconv.Atoi(l.token)
+	if e != nil || l.err {
+		return nil, &ParseError{f, "bad NSEC3PARAM Flags", l}, ""
+	}
+	rr.Flags = uint8(i)
+	<-c // zBlank
+	l = <-c
+	i, e = strconv.Atoi(l.token)
+	if e != nil || l.err {
+		return nil, &ParseError{f, "bad NSEC3PARAM Iterations", l}, ""
+	}
+	rr.Iterations = uint16(i)
+	<-c
+	l = <-c
+	rr.SaltLength = uint8(len(l.token))
+	rr.Salt = l.token
+	return rr, nil, ""
+}
+
+func setEUI48(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(EUI48)
+	rr.Hdr = h
+
+	l := <-c
+	if l.length == 0 {
+		return rr, nil, ""
+	}
+	if l.length != 17 || l.err {
+		return nil, &ParseError{f, "bad EUI48 Address", l}, ""
+	}
+	addr := make([]byte, 12)
+	dash := 0
+	for i := 0; i < 10; i += 2 {
+		addr[i] = l.token[i+dash]
+		addr[i+1] = l.token[i+1+dash]
+		dash++
+		if l.token[i+1+dash] != '-' {
+			return nil, &ParseError{f, "bad EUI48 Address", l}, ""
+		}
+	}
+	addr[10] = l.token[15]
+	addr[11] = l.token[16]
+
+	i, e := strconv.ParseUint(string(addr), 16, 48)
+	if e != nil {
+		return nil, &ParseError{f, "bad EUI48 Address", l}, ""
+	}
+	rr.Address = i
+	return rr, nil, ""
+}
+
+func setEUI64(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(EUI64)
+	rr.Hdr = h
+
+	l := <-c
+	if l.length == 0 {
+		return rr, nil, ""
+	}
+	if l.length != 23 || l.err {
+		return nil, &ParseError{f, "bad EUI64 Address", l}, ""
+	}
+	addr := make([]byte, 16)
+	dash := 0
+	for i := 0; i < 14; i += 2 {
+		addr[i] = l.token[i+dash]
+		addr[i+1] = l.token[i+1+dash]
+		dash++
+		if l.token[i+1+dash] != '-' {
+			return nil, &ParseError{f, "bad EUI64 Address", l}, ""
+		}
+	}
+	addr[14] = l.token[21]
+	addr[15] = l.token[22]
+
+	i, e := strconv.ParseUint(string(addr), 16, 64)
+	if e != nil {
+		return nil, &ParseError{f, "bad EUI68 Address", l}, ""
+	}
+	rr.Address = uint64(i)
+	return rr, nil, ""
+}
+
+func setSSHFP(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(SSHFP)
+	rr.Hdr = h
+
+	l := <-c
+	if l.length == 0 {
+		return rr, nil, ""
+	}
+	i, e := strconv.Atoi(l.token)
+	if e != nil || l.err {
+		return nil, &ParseError{f, "bad SSHFP Algorithm", l}, ""
+	}
+	rr.Algorithm = uint8(i)
+	<-c // zBlank
+	l = <-c
+	i, e = strconv.Atoi(l.token)
+	if e != nil || l.err {
+		return nil, &ParseError{f, "bad SSHFP Type", l}, ""
+	}
+	rr.Type = uint8(i)
+	<-c // zBlank
+	s, e1, c1 := endingToString(c, "bad SSHFP Fingerprint", f)
+	if e1 != nil {
+		return nil, e1, c1
+	}
+	rr.FingerPrint = s
+	return rr, nil, ""
+}
+
+func setDNSKEYs(h RR_Header, c chan lex, o, f, typ string) (RR, *ParseError, string) {
+	rr := new(DNSKEY)
+	rr.Hdr = h
+
+	l := <-c
+	if l.length == 0 {
+		return rr, nil, l.comment
+	}
+	i, e := strconv.Atoi(l.token)
+	if e != nil || l.err {
+		return nil, &ParseError{f, "bad " + typ + " Flags", l}, ""
+	}
+	rr.Flags = uint16(i)
+	<-c     // zBlank
+	l = <-c // zString
+	i, e = strconv.Atoi(l.token)
+	if e != nil || l.err {
+		return nil, &ParseError{f, "bad " + typ + " Protocol", l}, ""
+	}
+	rr.Protocol = uint8(i)
+	<-c     // zBlank
+	l = <-c // zString
+	i, e = strconv.Atoi(l.token)
+	if e != nil || l.err {
+		return nil, &ParseError{f, "bad " + typ + " Algorithm", l}, ""
+	}
+	rr.Algorithm = uint8(i)
+	s, e1, c1 := endingToString(c, "bad "+typ+" PublicKey", f)
+	if e1 != nil {
+		return nil, e1, c1
+	}
+	rr.PublicKey = s
+	return rr, nil, c1
+}
+
+func setKEY(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	r, e, s := setDNSKEYs(h, c, o, f, "KEY")
+	if r != nil {
+		return &KEY{*r.(*DNSKEY)}, e, s
+	}
+	return nil, e, s
+}
+
+func setDNSKEY(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	r, e, s := setDNSKEYs(h, c, o, f, "DNSKEY")
+	return r, e, s
+}
+
+func setCDNSKEY(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	r, e, s := setDNSKEYs(h, c, o, f, "CDNSKEY")
+	if r != nil {
+		return &CDNSKEY{*r.(*DNSKEY)}, e, s
+	}
+	return nil, e, s
+}
+
+func setRKEY(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(RKEY)
+	rr.Hdr = h
+
+	l := <-c
+	if l.length == 0 {
+		return rr, nil, l.comment
+	}
+	i, e := strconv.Atoi(l.token)
+	if e != nil || l.err {
+		return nil, &ParseError{f, "bad RKEY Flags", l}, ""
+	}
+	rr.Flags = uint16(i)
+	<-c     // zBlank
+	l = <-c // zString
+	i, e = strconv.Atoi(l.token)
+	if e != nil || l.err {
+		return nil, &ParseError{f, "bad RKEY Protocol", l}, ""
+	}
+	rr.Protocol = uint8(i)
+	<-c     // zBlank
+	l = <-c // zString
+	i, e = strconv.Atoi(l.token)
+	if e != nil || l.err {
+		return nil, &ParseError{f, "bad RKEY Algorithm", l}, ""
+	}
+	rr.Algorithm = uint8(i)
+	s, e1, c1 := endingToString(c, "bad RKEY PublicKey", f)
+	if e1 != nil {
+		return nil, e1, c1
+	}
+	rr.PublicKey = s
+	return rr, nil, c1
+}
+
+func setEID(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(EID)
+	rr.Hdr = h
+	s, e, c1 := endingToString(c, "bad EID Endpoint", f)
+	if e != nil {
+		return nil, e, c1
+	}
+	rr.Endpoint = s
+	return rr, nil, c1
+}
+
+func setNIMLOC(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(NIMLOC)
+	rr.Hdr = h
+	s, e, c1 := endingToString(c, "bad NIMLOC Locator", f)
+	if e != nil {
+		return nil, e, c1
+	}
+	rr.Locator = s
+	return rr, nil, c1
+}
+
+func setGPOS(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(GPOS)
+	rr.Hdr = h
+	l := <-c
+	if l.length == 0 {
+		return rr, nil, ""
+	}
+	_, e := strconv.ParseFloat(l.token, 64)
+	if e != nil || l.err {
+		return nil, &ParseError{f, "bad GPOS Longitude", l}, ""
+	}
+	rr.Longitude = l.token
+	<-c // zBlank
+	l = <-c
+	_, e = strconv.ParseFloat(l.token, 64)
+	if e != nil || l.err {
+		return nil, &ParseError{f, "bad GPOS Latitude", l}, ""
+	}
+	rr.Latitude = l.token
+	<-c // zBlank
+	l = <-c
+	_, e = strconv.ParseFloat(l.token, 64)
+	if e != nil || l.err {
+		return nil, &ParseError{f, "bad GPOS Altitude", l}, ""
+	}
+	rr.Altitude = l.token
+	return rr, nil, ""
+}
+
+func setDSs(h RR_Header, c chan lex, o, f, typ string) (RR, *ParseError, string) {
+	rr := new(DS)
+	rr.Hdr = h
+	l := <-c
+	if l.length == 0 {
+		return rr, nil, l.comment
+	}
+	i, e := strconv.Atoi(l.token)
+	if e != nil || l.err {
+		return nil, &ParseError{f, "bad " + typ + " KeyTag", l}, ""
+	}
+	rr.KeyTag = uint16(i)
+	<-c // zBlank
+	l = <-c
+	if i, e := strconv.Atoi(l.token); e != nil {
+		i, ok := StringToAlgorithm[l.tokenUpper]
+		if !ok || l.err {
+			return nil, &ParseError{f, "bad " + typ + " Algorithm", l}, ""
+		}
+		rr.Algorithm = i
+	} else {
+		rr.Algorithm = uint8(i)
+	}
+	<-c // zBlank
+	l = <-c
+	i, e = strconv.Atoi(l.token)
+	if e != nil || l.err {
+		return nil, &ParseError{f, "bad " + typ + " DigestType", l}, ""
+	}
+	rr.DigestType = uint8(i)
+	s, e1, c1 := endingToString(c, "bad "+typ+" Digest", f)
+	if e1 != nil {
+		return nil, e1, c1
+	}
+	rr.Digest = s
+	return rr, nil, c1
+}
+
+func setDS(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	r, e, s := setDSs(h, c, o, f, "DS")
+	return r, e, s
+}
+
+func setDLV(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	r, e, s := setDSs(h, c, o, f, "DLV")
+	if r != nil {
+		return &DLV{*r.(*DS)}, e, s
+	}
+	return nil, e, s
+}
+
+func setCDS(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	r, e, s := setDSs(h, c, o, f, "CDS")
+	if r != nil {
+		return &CDS{*r.(*DS)}, e, s
+	}
+	return nil, e, s
+}
+
+func setTA(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(TA)
+	rr.Hdr = h
+	l := <-c
+	if l.length == 0 {
+		return rr, nil, l.comment
+	}
+	i, e := strconv.Atoi(l.token)
+	if e != nil || l.err {
+		return nil, &ParseError{f, "bad TA KeyTag", l}, ""
+	}
+	rr.KeyTag = uint16(i)
+	<-c // zBlank
+	l = <-c
+	if i, e := strconv.Atoi(l.token); e != nil {
+		i, ok := StringToAlgorithm[l.tokenUpper]
+		if !ok || l.err {
+			return nil, &ParseError{f, "bad TA Algorithm", l}, ""
+		}
+		rr.Algorithm = i
+	} else {
+		rr.Algorithm = uint8(i)
+	}
+	<-c // zBlank
+	l = <-c
+	i, e = strconv.Atoi(l.token)
+	if e != nil || l.err {
+		return nil, &ParseError{f, "bad TA DigestType", l}, ""
+	}
+	rr.DigestType = uint8(i)
+	s, e, c1 := endingToString(c, "bad TA Digest", f)
+	if e != nil {
+		return nil, e.(*ParseError), c1
+	}
+	rr.Digest = s
+	return rr, nil, c1
+}
+
+func setTLSA(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(TLSA)
+	rr.Hdr = h
+	l := <-c
+	if l.length == 0 {
+		return rr, nil, l.comment
+	}
+	i, e := strconv.Atoi(l.token)
+	if e != nil || l.err {
+		return nil, &ParseError{f, "bad TLSA Usage", l}, ""
+	}
+	rr.Usage = uint8(i)
+	<-c // zBlank
+	l = <-c
+	i, e = strconv.Atoi(l.token)
+	if e != nil || l.err {
+		return nil, &ParseError{f, "bad TLSA Selector", l}, ""
+	}
+	rr.Selector = uint8(i)
+	<-c // zBlank
+	l = <-c
+	i, e = strconv.Atoi(l.token)
+	if e != nil || l.err {
+		return nil, &ParseError{f, "bad TLSA MatchingType", l}, ""
+	}
+	rr.MatchingType = uint8(i)
+	// So this needs be e2 (i.e. different than e), because...??t
+	s, e2, c1 := endingToString(c, "bad TLSA Certificate", f)
+	if e2 != nil {
+		return nil, e2, c1
+	}
+	rr.Certificate = s
+	return rr, nil, c1
+}
+
+func setRFC3597(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(RFC3597)
+	rr.Hdr = h
+	l := <-c
+	if l.token != "\\#" {
+		return nil, &ParseError{f, "bad RFC3597 Rdata", l}, ""
+	}
+	<-c // zBlank
+	l = <-c
+	rdlength, e := strconv.Atoi(l.token)
+	if e != nil || l.err {
+		return nil, &ParseError{f, "bad RFC3597 Rdata ", l}, ""
+	}
+
+	s, e1, c1 := endingToString(c, "bad RFC3597 Rdata", f)
+	if e1 != nil {
+		return nil, e1, c1
+	}
+	if rdlength*2 != len(s) {
+		return nil, &ParseError{f, "bad RFC3597 Rdata", l}, ""
+	}
+	rr.Rdata = s
+	return rr, nil, c1
+}
+
+func setSPF(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(SPF)
+	rr.Hdr = h
+
+	s, e, c1 := endingToTxtSlice(c, "bad SPF Txt", f)
+	if e != nil {
+		return nil, e, ""
+	}
+	rr.Txt = s
+	return rr, nil, c1
+}
+
+func setTXT(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(TXT)
+	rr.Hdr = h
+
+	// no zBlank reading here, because all this rdata is TXT
+	s, e, c1 := endingToTxtSlice(c, "bad TXT Txt", f)
+	if e != nil {
+		return nil, e, ""
+	}
+	rr.Txt = s
+	return rr, nil, c1
+}
+
+// identical to setTXT
+func setNINFO(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(NINFO)
+	rr.Hdr = h
+
+	s, e, c1 := endingToTxtSlice(c, "bad NINFO ZSData", f)
+	if e != nil {
+		return nil, e, ""
+	}
+	rr.ZSData = s
+	return rr, nil, c1
+}
+
+func setURI(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(URI)
+	rr.Hdr = h
+
+	l := <-c
+	if l.length == 0 { // Dynamic updates.
+		return rr, nil, ""
+	}
+
+	i, e := strconv.Atoi(l.token)
+	if e != nil || l.err {
+		return nil, &ParseError{f, "bad URI Priority", l}, ""
+	}
+	rr.Priority = uint16(i)
+	<-c // zBlank
+	l = <-c
+	i, e = strconv.Atoi(l.token)
+	if e != nil || l.err {
+		return nil, &ParseError{f, "bad URI Weight", l}, ""
+	}
+	rr.Weight = uint16(i)
+
+	<-c // zBlank
+	s, err, c1 := endingToTxtSlice(c, "bad URI Target", f)
+	if err != nil {
+		return nil, err, ""
+	}
+	if len(s) > 1 {
+		return nil, &ParseError{f, "bad URI Target", l}, ""
+	}
+	rr.Target = s[0]
+	return rr, nil, c1
+}
+
+func setDHCID(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	// awesome record to parse!
+	rr := new(DHCID)
+	rr.Hdr = h
+
+	s, e, c1 := endingToString(c, "bad DHCID Digest", f)
+	if e != nil {
+		return nil, e, c1
+	}
+	rr.Digest = s
+	return rr, nil, c1
+}
+
+func setNID(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(NID)
+	rr.Hdr = h
+
+	l := <-c
+	if l.length == 0 {
+		return rr, nil, ""
+	}
+	i, e := strconv.Atoi(l.token)
+	if e != nil || l.err {
+		return nil, &ParseError{f, "bad NID Preference", l}, ""
+	}
+	rr.Preference = uint16(i)
+	<-c     // zBlank
+	l = <-c // zString
+	u, err := stringToNodeID(l)
+	if err != nil || l.err {
+		return nil, err, ""
+	}
+	rr.NodeID = u
+	return rr, nil, ""
+}
+
+func setL32(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(L32)
+	rr.Hdr = h
+
+	l := <-c
+	if l.length == 0 {
+		return rr, nil, ""
+	}
+	i, e := strconv.Atoi(l.token)
+	if e != nil || l.err {
+		return nil, &ParseError{f, "bad L32 Preference", l}, ""
+	}
+	rr.Preference = uint16(i)
+	<-c     // zBlank
+	l = <-c // zString
+	rr.Locator32 = net.ParseIP(l.token)
+	if rr.Locator32 == nil || l.err {
+		return nil, &ParseError{f, "bad L32 Locator", l}, ""
+	}
+	return rr, nil, ""
+}
+
+func setLP(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(LP)
+	rr.Hdr = h
+
+	l := <-c
+	if l.length == 0 {
+		return rr, nil, ""
+	}
+	i, e := strconv.Atoi(l.token)
+	if e != nil || l.err {
+		return nil, &ParseError{f, "bad LP Preference", l}, ""
+	}
+	rr.Preference = uint16(i)
+	<-c     // zBlank
+	l = <-c // zString
+	rr.Fqdn = l.token
+	if l.length == 0 {
+		return rr, nil, ""
+	}
+	if l.token == "@" {
+		rr.Fqdn = o
+		return rr, nil, ""
+	}
+	_, ok := IsDomainName(l.token)
+	if !ok || l.length == 0 || l.err {
+		return nil, &ParseError{f, "bad LP Fqdn", l}, ""
+	}
+	if rr.Fqdn[l.length-1] != '.' {
+		rr.Fqdn = appendOrigin(rr.Fqdn, o)
+	}
+	return rr, nil, ""
+}
+
+func setL64(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(L64)
+	rr.Hdr = h
+
+	l := <-c
+	if l.length == 0 {
+		return rr, nil, ""
+	}
+	i, e := strconv.Atoi(l.token)
+	if e != nil || l.err {
+		return nil, &ParseError{f, "bad L64 Preference", l}, ""
+	}
+	rr.Preference = uint16(i)
+	<-c     // zBlank
+	l = <-c // zString
+	u, err := stringToNodeID(l)
+	if err != nil || l.err {
+		return nil, err, ""
+	}
+	rr.Locator64 = u
+	return rr, nil, ""
+}
+
+func setUID(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(UID)
+	rr.Hdr = h
+	l := <-c
+	if l.length == 0 {
+		return rr, nil, ""
+	}
+	i, e := strconv.Atoi(l.token)
+	if e != nil || l.err {
+		return nil, &ParseError{f, "bad UID Uid", l}, ""
+	}
+	rr.Uid = uint32(i)
+	return rr, nil, ""
+}
+
+func setGID(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(GID)
+	rr.Hdr = h
+	l := <-c
+	if l.length == 0 {
+		return rr, nil, ""
+	}
+	i, e := strconv.Atoi(l.token)
+	if e != nil || l.err {
+		return nil, &ParseError{f, "bad GID Gid", l}, ""
+	}
+	rr.Gid = uint32(i)
+	return rr, nil, ""
+}
+
+func setUINFO(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(UINFO)
+	rr.Hdr = h
+	s, e, c1 := endingToTxtSlice(c, "bad UINFO Uinfo", f)
+	if e != nil {
+		return nil, e, ""
+	}
+	rr.Uinfo = s[0] // silently discard anything above
+	return rr, nil, c1
+}
+
+func setPX(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(PX)
+	rr.Hdr = h
+
+	l := <-c
+	if l.length == 0 {
+		return rr, nil, ""
+	}
+	i, e := strconv.Atoi(l.token)
+	if e != nil || l.err {
+		return nil, &ParseError{f, "bad PX Preference", l}, ""
+	}
+	rr.Preference = uint16(i)
+	<-c     // zBlank
+	l = <-c // zString
+	rr.Map822 = l.token
+	if l.length == 0 {
+		return rr, nil, ""
+	}
+	if l.token == "@" {
+		rr.Map822 = o
+		return rr, nil, ""
+	}
+	_, ok := IsDomainName(l.token)
+	if !ok || l.length == 0 || l.err {
+		return nil, &ParseError{f, "bad PX Map822", l}, ""
+	}
+	if rr.Map822[l.length-1] != '.' {
+		rr.Map822 = appendOrigin(rr.Map822, o)
+	}
+	<-c     // zBlank
+	l = <-c // zString
+	rr.Mapx400 = l.token
+	if l.token == "@" {
+		rr.Mapx400 = o
+		return rr, nil, ""
+	}
+	_, ok = IsDomainName(l.token)
+	if !ok || l.length == 0 || l.err {
+		return nil, &ParseError{f, "bad PX Mapx400", l}, ""
+	}
+	if rr.Mapx400[l.length-1] != '.' {
+		rr.Mapx400 = appendOrigin(rr.Mapx400, o)
+	}
+	return rr, nil, ""
+}
+
+func setCAA(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
+	rr := new(CAA)
+	rr.Hdr = h
+	l := <-c
+	if l.length == 0 {
+		return rr, nil, l.comment
+	}
+	i, err := strconv.Atoi(l.token)
+	if err != nil || l.err {
+		return nil, &ParseError{f, "bad CAA Flag", l}, ""
+	}
+	rr.Flag = uint8(i)
+
+	<-c     // zBlank
+	l = <-c // zString
+	if l.value != zString {
+		return nil, &ParseError{f, "bad CAA Tag", l}, ""
+	}
+	rr.Tag = l.token
+
+	<-c // zBlank
+	s, e, c1 := endingToTxtSlice(c, "bad CAA Value", f)
+	if e != nil {
+		return nil, e, ""
+	}
+	if len(s) > 1 {
+		return nil, &ParseError{f, "bad CAA Value", l}, ""
+	}
+	rr.Value = s[0]
+	return rr, nil, c1
+}
+
+var typeToparserFunc = map[uint16]parserFunc{
+	TypeAAAA:       {setAAAA, false},
+	TypeAFSDB:      {setAFSDB, false},
+	TypeA:          {setA, false},
+	TypeCAA:        {setCAA, true},
+	TypeCDS:        {setCDS, true},
+	TypeCDNSKEY:    {setCDNSKEY, true},
+	TypeCERT:       {setCERT, true},
+	TypeCNAME:      {setCNAME, false},
+	TypeDHCID:      {setDHCID, true},
+	TypeDLV:        {setDLV, true},
+	TypeDNAME:      {setDNAME, false},
+	TypeKEY:        {setKEY, true},
+	TypeDNSKEY:     {setDNSKEY, true},
+	TypeDS:         {setDS, true},
+	TypeEID:        {setEID, true},
+	TypeEUI48:      {setEUI48, false},
+	TypeEUI64:      {setEUI64, false},
+	TypeGID:        {setGID, false},
+	TypeGPOS:       {setGPOS, false},
+	TypeHINFO:      {setHINFO, true},
+	TypeHIP:        {setHIP, true},
+	TypeKX:         {setKX, false},
+	TypeL32:        {setL32, false},
+	TypeL64:        {setL64, false},
+	TypeLOC:        {setLOC, true},
+	TypeLP:         {setLP, false},
+	TypeMB:         {setMB, false},
+	TypeMD:         {setMD, false},
+	TypeMF:         {setMF, false},
+	TypeMG:         {setMG, false},
+	TypeMINFO:      {setMINFO, false},
+	TypeMR:         {setMR, false},
+	TypeMX:         {setMX, false},
+	TypeNAPTR:      {setNAPTR, false},
+	TypeNID:        {setNID, false},
+	TypeNIMLOC:     {setNIMLOC, true},
+	TypeNINFO:      {setNINFO, true},
+	TypeNSAPPTR:    {setNSAPPTR, false},
+	TypeNSEC3PARAM: {setNSEC3PARAM, false},
+	TypeNSEC3:      {setNSEC3, true},
+	TypeNSEC:       {setNSEC, true},
+	TypeNS:         {setNS, false},
+	TypeOPENPGPKEY: {setOPENPGPKEY, true},
+	TypePTR:        {setPTR, false},
+	TypePX:         {setPX, false},
+	TypeSIG:        {setSIG, true},
+	TypeRKEY:       {setRKEY, true},
+	TypeRP:         {setRP, false},
+	TypeRRSIG:      {setRRSIG, true},
+	TypeRT:         {setRT, false},
+	TypeSOA:        {setSOA, false},
+	TypeSPF:        {setSPF, true},
+	TypeSRV:        {setSRV, false},
+	TypeSSHFP:      {setSSHFP, true},
+	TypeTALINK:     {setTALINK, false},
+	TypeTA:         {setTA, true},
+	TypeTLSA:       {setTLSA, true},
+	TypeTXT:        {setTXT, true},
+	TypeUID:        {setUID, false},
+	TypeUINFO:      {setUINFO, true},
+	TypeURI:        {setURI, true},
+	TypeX25:        {setX25, false},
+}
-- 
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