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zscan_rr.go
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zscan_rr.go
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package dns
import (
"encoding/base64"
"net"
"strconv"
"strings"
)
// Parse the rdata of each rrtype.
// All data from the channel c is either _STRING or _BLANK.
// After the rdata there may come 1 _BLANK and then a _NEWLINE
// or immediately a _NEWLINE. 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) {
var r RR
e := new(ParseError)
switch h.Rrtype {
case TypeA:
r, e = setA(h, c, f)
goto Slurp
case TypeAAAA:
r, e = setAAAA(h, c, f)
goto Slurp
case TypeHINFO:
r, e = setHINFO(h, c, f)
goto Slurp
case TypeNS:
r, e = setNS(h, c, o, f)
goto Slurp
case TypePTR:
r, e = setPTR(h, c, o, f)
goto Slurp
case TypeMF:
r, e = setMF(h, c, o, f)
goto Slurp
case TypeMD:
r, e = setMD(h, c, o, f)
goto Slurp
case TypeMG:
r, e = setMG(h, c, o, f)
goto Slurp
case TypeRT:
r, e = setRT(h, c, o, f)
goto Slurp
case TypeAFSDB:
r, e = setAFSDB(h, c, o, f)
goto Slurp
case TypeMX:
r, e = setMX(h, c, o, f)
goto Slurp
case TypeCNAME:
r, e = setCNAME(h, c, o, f)
goto Slurp
case TypeDNAME:
r, e = setDNAME(h, c, o, f)
goto Slurp
case TypeSOA:
r, e = setSOA(h, c, o, f)
goto Slurp
case TypeSSHFP:
r, e = setSSHFP(h, c, f)
goto Slurp
case TypeSRV:
r, e = setSRV(h, c, o, f)
goto Slurp
case TypeNAPTR:
r, e = setNAPTR(h, c, o, f)
goto Slurp
case TypeTALINK:
r, e = setTALINK(h, c, o, f)
goto Slurp
case TypeRP:
r, e = setRP(h, c, o, f)
goto Slurp
case TypeMR:
r, e = setMR(h, c, o, f)
goto Slurp
case TypeMB:
r, e = setMB(h, c, o, f)
goto Slurp
case TypeKX:
r, e = setKX(h, c, o, f)
goto Slurp
// These types have a variable ending: either chunks of txt or chunks/base64 or hex.
// They need to search for the end of the RR themselves, hence they look for the ending
// newline. Thus there is no need to slurp the remainder, because there is none.
case TypeDNSKEY:
return setDNSKEY(h, c, f)
case TypeRRSIG:
return setRRSIG(h, c, o, f)
case TypeNSEC:
return setNSEC(h, c, o, f)
case TypeNSEC3:
return setNSEC3(h, c, o, f)
case TypeNSEC3PARAM:
return setNSEC3PARAM(h, c, f)
case TypeWKS:
return setWKS(h, c, f)
case TypeDS:
return setDS(h, c, f)
case TypeDLV:
return setDLV(h, c, f)
case TypeTA:
return setTA(h, c, f)
case TypeTLSA:
return setTLSA(h, c, f)
case TypeTXT:
return setTXT(h, c, f)
case TypeHIP:
return setHIP(h, c, o, f)
case TypeSPF:
return setSPF(h, c, f)
case TypeDHCID:
return setDHCID(h, c, f)
case TypeIPSECKEY:
return setIPSECKEY(h, c, o, f)
case TypeLOC:
r, e = setLOC(h, c, f)
default:
// RFC3957 RR (Unknown RR handling)
return setRFC3597(h, c, f)
}
Slurp:
if e != nil {
return nil, e
}
if se := slurpRemainder(c, f); se != nil {
return nil, se
}
return r, e
}
func setA(h RR_Header, c chan lex, f string) (RR, *ParseError) {
rr := new(RR_A)
rr.Hdr = h
l := <-c
rr.A = net.ParseIP(l.token)
if rr.A == nil {
return nil, &ParseError{f, "bad A A", l}
}
return rr, nil
}
func setAAAA(h RR_Header, c chan lex, f string) (RR, *ParseError) {
rr := new(RR_AAAA)
rr.Hdr = h
l := <-c
rr.AAAA = net.ParseIP(l.token)
if rr.AAAA == nil {
return nil, &ParseError{f, "bad AAAA AAAA", l}
}
return rr, nil
}
func setNS(h RR_Header, c chan lex, o, f string) (RR, *ParseError) {
rr := new(RR_NS)
rr.Hdr = h
l := <-c
rr.Ns = l.token
if l.token == "@" {
rr.Ns = o
return rr, nil
}
_, ld, ok := IsDomainName(l.token)
if !ok {
return nil, &ParseError{f, "bad NS Ns", l}
}
if rr.Ns[ld-1] != '.' {
rr.Ns = appendOrigin(rr.Ns, o)
}
return rr, nil
}
func setPTR(h RR_Header, c chan lex, o, f string) (RR, *ParseError) {
rr := new(RR_PTR)
rr.Hdr = h
l := <-c
rr.Ptr = l.token
if l.token == "@" {
rr.Ptr = o
return rr, nil
}
_, ld, ok := IsDomainName(l.token)
if !ok {
return nil, &ParseError{f, "bad PTR Ptr", l}
}
if rr.Ptr[ld-1] != '.' {
rr.Ptr = appendOrigin(rr.Ptr, o)
}
return rr, nil
}
func setRP(h RR_Header, c chan lex, o, f string) (RR, *ParseError) {
rr := new(RR_RP)
rr.Hdr = h
l := <-c
rr.Mbox = l.token
if l.token == "@" {
rr.Mbox = o
} else {
_, ld, ok := IsDomainName(l.token)
if !ok {
return nil, &ParseError{f, "bad RP Mbox", l}
}
if rr.Mbox[ld-1] != '.' {
rr.Mbox = appendOrigin(rr.Mbox, o)
}
}
<-c // _BLANK
l = <-c
rr.Txt = l.token
if l.token == "@" {
rr.Txt = o
return rr, nil
}
_, ld, ok := IsDomainName(l.token)
if !ok {
return nil, &ParseError{f, "bad RP Txt", l}
}
if rr.Txt[ld-1] != '.' {
rr.Txt = appendOrigin(rr.Txt, o)
}
return rr, nil
}
func setMR(h RR_Header, c chan lex, o, f string) (RR, *ParseError) {
rr := new(RR_MR)
rr.Hdr = h
l := <-c
rr.Mr = l.token
if l.token == "@" {
rr.Mr = o
return rr, nil
}
_, ld, ok := IsDomainName(l.token)
if !ok {
return nil, &ParseError{f, "bad MR Mr", l}
}
if rr.Mr[ld-1] != '.' {
rr.Mr = appendOrigin(rr.Mr, o)
}
return rr, nil
}
func setMB(h RR_Header, c chan lex, o, f string) (RR, *ParseError) {
rr := new(RR_MB)
rr.Hdr = h
l := <-c
rr.Mb = l.token
if l.token == "@" {
rr.Mb = o
return rr, nil
}
_, ld, ok := IsDomainName(l.token)
if !ok {
return nil, &ParseError{f, "bad MB Mb", l}
}
if rr.Mb[ld-1] != '.' {
rr.Mb = appendOrigin(rr.Mb, o)
}
return rr, nil
}
func setMG(h RR_Header, c chan lex, o, f string) (RR, *ParseError) {
rr := new(RR_MG)
rr.Hdr = h
l := <-c
rr.Mg = l.token
if l.token == "@" {
rr.Mg = o
return rr, nil
}
_, ld, ok := IsDomainName(l.token)
if !ok {
return nil, &ParseError{f, "bad MG Mg", l}
}
if rr.Mg[ld-1] != '.' {
rr.Mg = appendOrigin(rr.Mg, o)
}
return rr, nil
}
func setHINFO(h RR_Header, c chan lex, f string) (RR, *ParseError) {
rr := new(RR_HINFO)
rr.Hdr = h
l := <-c
rr.Cpu = l.token
<-c // _BLANK
l = <-c // _STRING
rr.Os = l.token
return rr, nil
}
func setMINFO(h RR_Header, c chan lex, o, f string) (RR, *ParseError) {
rr := new(RR_MINFO)
rr.Hdr = h
l := <-c
rr.Rmail = l.token
if l.token == "@" {
rr.Rmail = o
} else {
_, ld, ok := IsDomainName(l.token)
if !ok {
return nil, &ParseError{f, "bad MINFO Rmail", l}
}
if rr.Rmail[ld-1] != '.' {
rr.Rmail = appendOrigin(rr.Rmail, o)
}
}
l = <-c
rr.Email = l.token
if l.token == "@" {
rr.Email = o
return rr, nil
}
_, ld, ok := IsDomainName(l.token)
if !ok {
return nil, &ParseError{f, "bad MINFO Email", l}
}
if rr.Email[ld-1] != '.' {
rr.Email = appendOrigin(rr.Email, o)
}
return rr, nil
}
func setMF(h RR_Header, c chan lex, o, f string) (RR, *ParseError) {
rr := new(RR_MF)
rr.Hdr = h
l := <-c
rr.Mf = l.token
if l.token == "@" {
rr.Mf = o
return rr, nil
}
_, ld, ok := IsDomainName(l.token)
if !ok {
return nil, &ParseError{f, "bad MF Mf", l}
}
if rr.Mf[ld-1] != '.' {
rr.Mf = appendOrigin(rr.Mf, o)
}
return rr, nil
}
func setMD(h RR_Header, c chan lex, o, f string) (RR, *ParseError) {
rr := new(RR_MD)
rr.Hdr = h
l := <-c
rr.Md = l.token
if l.token == "@" {
rr.Md = o
return rr, nil
}
_, ld, ok := IsDomainName(l.token)
if !ok {
return nil, &ParseError{f, "bad MD Md", l}
}
if rr.Md[ld-1] != '.' {
rr.Md = appendOrigin(rr.Md, o)
}
return rr, nil
}
func setMX(h RR_Header, c chan lex, o, f string) (RR, *ParseError) {
rr := new(RR_MX)
rr.Hdr = h
l := <-c
if i, e := strconv.Atoi(l.token); e != nil {
return nil, &ParseError{f, "bad MX Pref", l}
} else {
rr.Pref = uint16(i)
}
<-c // _BLANK
l = <-c // _STRING
rr.Mx = l.token
if l.token == "@" {
rr.Mx = o
return rr, nil
}
_, ld, ok := IsDomainName(l.token)
if !ok {
return nil, &ParseError{f, "bad MX Mx", l}
}
if rr.Mx[ld-1] != '.' {
rr.Mx = appendOrigin(rr.Mx, o)
}
return rr, nil
}
func setRT(h RR_Header, c chan lex, o, f string) (RR, *ParseError) {
rr := new(RR_RT)
rr.Hdr = h
l := <-c
if i, e := strconv.Atoi(l.token); e != nil {
return nil, &ParseError{f, "bad RT Preference", l}
} else {
rr.Preference = uint16(i)
}
<-c // _BLANK
l = <-c // _STRING
rr.Host = l.token
if l.token == "@" {
rr.Host = o
return rr, nil
}
_, ld, ok := IsDomainName(l.token)
if !ok {
return nil, &ParseError{f, "bad RT Host", l}
}
if rr.Host[ld-1] != '.' {
rr.Host = appendOrigin(rr.Host, o)
}
return rr, nil
}
func setAFSDB(h RR_Header, c chan lex, o, f string) (RR, *ParseError) {
rr := new(RR_AFSDB)
rr.Hdr = h
l := <-c
if i, e := strconv.Atoi(l.token); e != nil {
return nil, &ParseError{f, "bad AFSDB Subtype", l}
} else {
rr.Subtype = uint16(i)
}
<-c // _BLANK
l = <-c // _STRING
rr.Hostname = l.token
if l.token == "@" {
rr.Hostname = o
return rr, nil
}
_, ld, ok := IsDomainName(l.token)
if !ok {
return nil, &ParseError{f, "bad AFSDB Hostname", l}
}
if rr.Hostname[ld-1] != '.' {
rr.Hostname = appendOrigin(rr.Hostname, o)
}
return rr, nil
}
func setKX(h RR_Header, c chan lex, o, f string) (RR, *ParseError) {
rr := new(RR_KX)
rr.Hdr = h
l := <-c
if i, e := strconv.Atoi(l.token); e != nil {
return nil, &ParseError{f, "bad KX Pref", l}
} else {
rr.Pref = uint16(i)
}
<-c // _BLANK
l = <-c // _STRING
rr.Exchanger = l.token
if l.token == "@" {
rr.Exchanger = o
return rr, nil
}
_, ld, ok := IsDomainName(l.token)
if !ok {
return nil, &ParseError{f, "bad KX Exchanger", l}
}
if rr.Exchanger[ld-1] != '.' {
rr.Exchanger = appendOrigin(rr.Exchanger, o)
}
return rr, nil
}
func setCNAME(h RR_Header, c chan lex, o, f string) (RR, *ParseError) {
rr := new(RR_CNAME)
rr.Hdr = h
l := <-c
rr.Target = l.token
if l.token == "@" {
rr.Target = o
return rr, nil
}
_, ld, ok := IsDomainName(l.token)
if !ok {
return nil, &ParseError{f, "bad CNAME Target", l}
}
if rr.Target[ld-1] != '.' {
rr.Target = appendOrigin(rr.Target, o)
}
return rr, nil
}
func setDNAME(h RR_Header, c chan lex, o, f string) (RR, *ParseError) {
rr := new(RR_DNAME)
rr.Hdr = h
l := <-c
rr.Target = l.token
if l.token == "@" {
rr.Target = o
return rr, nil
}
_, ld, ok := IsDomainName(l.token)
if !ok {
return nil, &ParseError{f, "bad CNAME Target", l}
}
if rr.Target[ld-1] != '.' {
rr.Target = appendOrigin(rr.Target, o)
}
return rr, nil
}
func setSOA(h RR_Header, c chan lex, o, f string) (RR, *ParseError) {
rr := new(RR_SOA)
rr.Hdr = h
l := <-c
rr.Ns = l.token
<-c // _BLANK
if l.token == "@" {
rr.Ns = o
} else {
_, ld, ok := IsDomainName(l.token)
if !ok {
return nil, &ParseError{f, "bad SOA Ns", l}
}
if rr.Ns[ld-1] != '.' {
rr.Ns = appendOrigin(rr.Ns, o)
}
}
l = <-c
rr.Mbox = l.token
if l.token == "@" {
rr.Mbox = o
} else {
_, ld, ok := IsDomainName(l.token)
if !ok {
return nil, &ParseError{f, "bad SOA Mbox", l}
}
if rr.Mbox[ld-1] != '.' {
rr.Mbox = appendOrigin(rr.Mbox, o)
}
}
<-c // _BLANK
var (
v uint32
ok bool
)
for i := 0; i < 5; i++ {
l = <-c
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 // _BLANK
case 1:
rr.Refresh = v
<-c // _BLANK
case 2:
rr.Retry = v
<-c // _BLANK
case 3:
rr.Expire = v
<-c // _BLANK
case 4:
rr.Minttl = v
}
}
return rr, nil
}
func setSRV(h RR_Header, c chan lex, o, f string) (RR, *ParseError) {
rr := new(RR_SRV)
rr.Hdr = h
l := <-c
if i, e := strconv.Atoi(l.token); e != nil {
return nil, &ParseError{f, "bad SRV Priority", l}
} else {
rr.Priority = uint16(i)
}
<-c // _BLANK
l = <-c // _STRING
if i, e := strconv.Atoi(l.token); e != nil {
return nil, &ParseError{f, "bad SRV Weight", l}
} else {
rr.Weight = uint16(i)
}
<-c // _BLANK
l = <-c // _STRING
if i, e := strconv.Atoi(l.token); e != nil {
return nil, &ParseError{f, "bad SRV Port", l}
} else {
rr.Port = uint16(i)
}
<-c // _BLANK
l = <-c // _STRING
rr.Target = l.token
if l.token == "@" {
rr.Target = o
return rr, nil
}
_, ld, ok := IsDomainName(l.token)
if !ok {
return nil, &ParseError{f, "bad SRV Target", l}
}
if rr.Target[ld-1] != '.' {
rr.Target = appendOrigin(rr.Target, o)
}
return rr, nil
}
func setNAPTR(h RR_Header, c chan lex, o, f string) (RR, *ParseError) {
rr := new(RR_NAPTR)
rr.Hdr = h
l := <-c
if i, e := strconv.Atoi(l.token); e != nil {
return nil, &ParseError{f, "bad NAPTR Order", l}
} else {
rr.Order = uint16(i)
}
<-c // _BLANK
l = <-c // _STRING
if i, e := strconv.Atoi(l.token); e != nil {
return nil, &ParseError{f, "bad NAPTR Preference", l}
} else {
rr.Pref = uint16(i)
}
// Flags
<-c // _BLANK
l = <-c // _QUOTE
if l.value != _QUOTE {
return nil, &ParseError{f, "bad NAPTR Flags", l}
}
l = <-c // Either String or Quote
if l.value == _STRING {
rr.Flags = l.token
l = <-c // _QUOTE
if l.value != _QUOTE {
return nil, &ParseError{f, "bad NAPTR Flags", l}
}
} else if l.value == _QUOTE {
rr.Flags = ""
} else {
return nil, &ParseError{f, "bad NAPTR Flags", l}
}
// Service
<-c // _BLANK
l = <-c // _QUOTE
if l.value != _QUOTE {
return nil, &ParseError{f, "bad NAPTR Service", l}
}
l = <-c // Either String or Quote
if l.value == _STRING {
rr.Service = l.token
l = <-c // _QUOTE
if l.value != _QUOTE {
return nil, &ParseError{f, "bad NAPTR Service", l}
}
} else if l.value == _QUOTE {
rr.Service = ""
} else {
return nil, &ParseError{f, "bad NAPTR Service", l}
}
// Regexp
<-c // _BLANK
l = <-c // _QUOTE
if l.value != _QUOTE {
return nil, &ParseError{f, "bad NAPTR Regexp", l}
}
l = <-c // Either String or Quote
if l.value == _STRING {
rr.Regexp = l.token
l = <-c // _QUOTE
if l.value != _QUOTE {
return nil, &ParseError{f, "bad NAPTR Regexp", l}
}
} else if l.value == _QUOTE {
rr.Regexp = ""
} else {
return nil, &ParseError{f, "bad NAPTR Regexp", l}
}
// After quote no space??
<-c // _BLANK
l = <-c // _STRING
rr.Replacement = l.token
if l.token == "@" {
rr.Replacement = o
return rr, nil
}
_, ld, ok := IsDomainName(l.token)
if !ok {
return nil, &ParseError{f, "bad NAPTR Replacement", l}
}
if rr.Replacement[ld-1] != '.' {
rr.Replacement = appendOrigin(rr.Replacement, o)
}
return rr, nil
}
func setTALINK(h RR_Header, c chan lex, o, f string) (RR, *ParseError) {
rr := new(RR_TALINK)
rr.Hdr = h
l := <-c
rr.PreviousName = l.token
if l.token == "@" {
rr.PreviousName = o
} else {
_, ld, ok := IsDomainName(l.token)
if !ok {
return nil, &ParseError{f, "bad TALINK PreviousName", l}
}
if rr.PreviousName[ld-1] != '.' {
rr.PreviousName = appendOrigin(rr.PreviousName, o)
}
}
<-c // _BLANK
l = <-c
rr.NextName = l.token
if l.token == "@" {
rr.NextName = o
return rr, nil
}
_, ld, ok := IsDomainName(l.token)
if !ok {
return nil, &ParseError{f, "bad TALINK NextName", l}
}
if rr.NextName[ld-1] != '.' {
rr.NextName = appendOrigin(rr.NextName, o)
}
return rr, nil
}
func setLOC(h RR_Header, c chan lex, f string) (RR, *ParseError) {
rr := new(RR_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 i, e := strconv.Atoi(l.token); e != nil {
return nil, &ParseError{f, "bad LOC Latitude", l}
} else {
rr.Latitude = 1000 * 60 * 60 * uint32(i)
}
<-c // _BLANK
// Either number, 'N' or 'S'
l = <-c
if rr.Latitude, ok = locCheckNorth(l.token, rr.Latitude); ok {
goto East
}
if i, e := strconv.Atoi(l.token); e != nil {
return nil, &ParseError{f, "bad LOC Latitude minutes", l}
} else {
rr.Latitude += 1000 * 60 * uint32(i)
}
<-c // _BLANK
l = <-c
if i, e := strconv.ParseFloat(l.token, 32); e != nil {
return nil, &ParseError{f, "bad LOC Latitude seconds", l}
} else {
rr.Latitude += uint32(1000 * i)
}
<-c // _BLANK
// 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 // _BLANK
l = <-c
if i, e := strconv.Atoi(l.token); e != nil {
return nil, &ParseError{f, "bad LOC Longitude", l}
} else {
rr.Longitude = 1000 * 60 * 60 * uint32(i)
}
<-c // _BLANK
// 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 {
return nil, &ParseError{f, "bad LOC Longitude minutes", l}
} else {
rr.Longitude += 1000 * 60 * uint32(i)
}
<-c // _BLANK
l = <-c
if i, e := strconv.ParseFloat(l.token, 32); e != nil {
return nil, &ParseError{f, "bad LOC Longitude seconds", l}
} else {
rr.Longitude += uint32(1000 * i)
}
<-c // _BLANK
// 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 // _BLANK
l = <-c
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 != _NEWLINE && l.value != _EOF {
switch l.value {
case _STRING:
switch count {
case 0: // Size
if e, m, ok := stringToCm(l.token); !ok {
return nil, &ParseError{f, "bad LOC Size", l}
} else {
rr.Size = (e & 0x0f) | (m << 4 & 0xf0)
}
case 1: // HorizPre
if e, m, ok := stringToCm(l.token); !ok {
return nil, &ParseError{f, "bad LOC HorizPre", l}
} else {
rr.HorizPre = (e & 0x0f) | (m << 4 & 0xf0)
}
case 2: // VertPre
if e, m, ok := stringToCm(l.token); !ok {
return nil, &ParseError{f, "bad LOC VertPre", l}
} else {
rr.VertPre = (e & 0x0f) | (m << 4 & 0xf0)
}
}
count++
case _BLANK:
// 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) {
rr := new(RR_HIP)
rr.Hdr = h
// HitLength is not represented
l := <-c
if i, e := strconv.Atoi(l.token); e != nil {
return nil, &ParseError{f, "bad HIP PublicKeyAlgorithm", l}
} else {
rr.PublicKeyAlgorithm = uint8(i)
}
<-c // _BLANK
l = <-c // _STRING
rr.Hit = l.token // This can not contain spaces, see RFC 5205 Section 6.
rr.HitLength = uint8(len(rr.Hit)) / 2
<-c // _BLANK
l = <-c // _STRING
rr.PublicKey = l.token // This cannot contain spaces
rr.PublicKeyLength = uint16(base64.StdEncoding.DecodedLen(len(rr.PublicKey)))
// RendezvousServers (if any)
l = <-c
xs := make([]string, 0)
for l.value != _NEWLINE && l.value != _EOF {
switch l.value {
case _STRING:
if l.token == "@" {
xs = append(xs, o)
continue
}
_, ld, ok := IsDomainName(l.token)
if !ok {
return nil, &ParseError{f, "bad HIP RendezvousServers", l}
}
if l.token[ld-1] != '.' {
l.token = appendOrigin(l.token, o)
}
xs = append(xs, l.token)
case _BLANK:
// Ok
default:
return nil, &ParseError{f, "bad HIP RendezvousServers", l}
}
l = <-c
}
rr.RendezvousServers = xs
return rr, nil
}
func setCERT(h RR_Header, c chan lex, o, f string) (RR, *ParseError) {
rr := new(RR_CERT)
rr.Hdr = h
l := <-c
if i, e := strconv.Atoi(l.token); e != nil {
return nil, &ParseError{f, "bad CERT Type", l}
} else {
rr.Type = uint16(i)
}
<-c // _BLANK
l = <-c // _STRING
if i, e := strconv.Atoi(l.token); e != nil {
return nil, &ParseError{f, "bad NAPTR KeyTag", l}
} else {
rr.KeyTag = uint16(i)
}
<-c // _BLANK
l = <-c // _STRING
if i, e := strconv.Atoi(l.token); e != nil {
return nil, &ParseError{f, "bad NAPTR Algorithm", l}
} else {
rr.Algorithm = uint8(i)
}
// Get the remaining data until we see a NEWLINE
l = <-c
s := ""
for l.value != _NEWLINE && l.value != _EOF {
switch l.value {
case _STRING:
s += l.token
case _BLANK:
// Ok
default:
return nil, &ParseError{f, "bad NAPTR Certificate", l}
}
l = <-c
}
rr.Certificate = s
return rr, nil
}
func setRRSIG(h RR_Header, c chan lex, o, f string) (RR, *ParseError) {
rr := new(RR_RRSIG)
rr.Hdr = h
l := <-c
if t, ok := Str_rr[strings.ToUpper(l.token)]; !ok {
return nil, &ParseError{f, "bad RRSIG Typecovered", l}
} else {
rr.TypeCovered = t
}
<-c // _BLANK
l = <-c
if i, err := strconv.Atoi(l.token); err != nil {
return nil, &ParseError{f, "bad RRSIG Algorithm", l}
} else {
rr.Algorithm = uint8(i)
}