community
/
dns
3
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Merge pull request #274 from FiloSottile/filippo/generate 

Generate programmatically per-type code, including .len() and .copy()
This commit is contained in:
Miek Gieben 2015-10-08 12:58:09 +01:00
parent fe4ec22b6b ff2b0714db
commit dfefa36553
7 changed files with 1133 additions and 537 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
edns.go
View File

@ -30,11 +30,6 @@ type OPT struct {
Option []EDNS0 `dns:"opt"`
}
// Header implements the RR interface.
func (rr *OPT) Header() *RR_Header {
return &rr.Hdr
}
func (rr *OPT) String() string {
s := "\n;; OPT PSEUDOSECTION:\n; EDNS: version " + strconv.Itoa(int(rr.Version())) + "; "
if rr.Do() {
@ -88,10 +83,6 @@ func (rr *OPT) len() int {
return l
}
func (rr *OPT) copy() RR {
return &OPT{*rr.Hdr.copyHeader(), rr.Option}
}
// return the old value -> delete SetVersion?
// Version returns the EDNS version used. Only zero is defined.

78
msg.go
View File

@ -89,84 +89,6 @@ type Msg struct {
Extra []RR // Holds the RR(s) of the additional section.
}
// TypeToString is a map of strings for each RR wire type.
var TypeToString = map[uint16]string{
TypeA: "A",
TypeAAAA: "AAAA",
TypeAFSDB: "AFSDB",
TypeANY: "ANY", // Meta RR
TypeATMA: "ATMA",
TypeAXFR: "AXFR", // Meta RR
TypeCAA: "CAA",
TypeCDNSKEY: "CDNSKEY",
TypeCDS: "CDS",
TypeCERT: "CERT",
TypeCNAME: "CNAME",
TypeDHCID: "DHCID",
TypeDLV: "DLV",
TypeDNAME: "DNAME",
TypeDNSKEY: "DNSKEY",
TypeDS: "DS",
TypeEID: "EID",
TypeEUI48: "EUI48",
TypeEUI64: "EUI64",
TypeGID: "GID",
TypeGPOS: "GPOS",
TypeHINFO: "HINFO",
TypeHIP: "HIP",
TypeIPSECKEY: "IPSECKEY",
TypeISDN: "ISDN",
TypeIXFR: "IXFR", // Meta RR
TypeKEY: "KEY",
TypeKX: "KX",
TypeL32: "L32",
TypeL64: "L64",
TypeLOC: "LOC",
TypeLP: "LP",
TypeMB: "MB",
TypeMD: "MD",
TypeMF: "MF",
TypeMG: "MG",
TypeMINFO: "MINFO",
TypeMR: "MR",
TypeMX: "MX",
TypeNAPTR: "NAPTR",
TypeNID: "NID",
TypeNINFO: "NINFO",
TypeNIMLOC: "NIMLOC",
TypeNS: "NS",
TypeNSAPPTR: "NSAP-PTR",
TypeNSEC3: "NSEC3",
TypeNSEC3PARAM: "NSEC3PARAM",
TypeNSEC: "NSEC",
TypeNULL: "NULL",
TypeOPT: "OPT",
TypeOPENPGPKEY: "OPENPGPKEY",
TypePTR: "PTR",
TypeRKEY: "RKEY",
TypeRP: "RP",
TypeRRSIG: "RRSIG",
TypeRT: "RT",
TypeSIG: "SIG",
TypeSOA: "SOA",
TypeSPF: "SPF",
TypeSRV: "SRV",
TypeSSHFP: "SSHFP",
TypeTA: "TA",
TypeTALINK: "TALINK",
TypeTKEY: "TKEY", // Meta RR
TypeTLSA: "TLSA",
TypeTSIG: "TSIG", // Meta RR
TypeTXT: "TXT",
TypePX: "PX",
TypeUID: "UID",
TypeUINFO: "UINFO",
TypeUNSPEC: "UNSPEC",
TypeURI: "URI",
TypeWKS: "WKS",
TypeX25: "X25",
}
// StringToType is the reverse of TypeToString, needed for string parsing.
var StringToType = reverseInt16(TypeToString)

13
tsig.go
View File

@ -37,10 +37,6 @@ type TSIG struct {
OtherData string `dns:"size-hex"`
}
func (rr *TSIG) Header() *RR_Header {
return &rr.Hdr
}
// TSIG has no official presentation format, but this will suffice.
func (rr *TSIG) String() string {
@ -58,15 +54,6 @@ func (rr *TSIG) String() string {
return s
}
func (rr *TSIG) len() int {
return rr.Hdr.len() + len(rr.Algorithm) + 1 + 6 +
4 + len(rr.MAC)/2 + 1 + 6 + len(rr.OtherData)/2 + 1
}
func (rr *TSIG) copy() RR {
return &TSIG{*rr.Hdr.copyHeader(), rr.Algorithm, rr.TimeSigned, rr.Fudge, rr.MACSize, rr.MAC, rr.OrigId, rr.Error, rr.OtherLen, rr.OtherData}
}
// The following values must be put in wireformat, so that the MAC can be calculated.
// RFC 2845, section 3.4.2. TSIG Variables.
type tsigWireFmt struct {

459
types.go
View File

@ -206,6 +206,8 @@ var CertTypeToString = map[uint16]string{
// StringToCertType is the reverseof CertTypeToString.
var StringToCertType = reverseInt16(CertTypeToString)
//go:generate go run types_generate.go
// Question holds a DNS question. There can be multiple questions in the
// question section of a message. Usually there is just one.
type Question struct {
@ -214,6 +216,10 @@ type Question struct {
Qclass uint16
}
func (q *Question) len() int {
return len(q.Name) + 1 + 2 + 2
}
func (q *Question) String() (s string) {
// prefix with ; (as in dig)
s = ";" + sprintName(q.Name) + "\t"
@ -222,11 +228,6 @@ func (q *Question) String() (s string) {
return s
}
func (q *Question) len() int {
l := len(q.Name) + 1
return l + 4
}
// ANY is a wildcard record. See RFC 1035, Section 3.2.3. ANY
// is named "*" there.
type ANY struct {
@ -234,20 +235,14 @@ type ANY struct {
// Does not have any rdata
}
func (rr *ANY) Header() *RR_Header { return &rr.Hdr }
func (rr *ANY) copy() RR { return &ANY{*rr.Hdr.copyHeader()} }
func (rr *ANY) String() string { return rr.Hdr.String() }
func (rr *ANY) len() int { return rr.Hdr.len() }
func (rr *ANY) String() string { return rr.Hdr.String() }
type CNAME struct {
Hdr RR_Header
Target string `dns:"cdomain-name"`
}
func (rr *CNAME) Header() *RR_Header { return &rr.Hdr }
func (rr *CNAME) copy() RR { return &CNAME{*rr.Hdr.copyHeader(), sprintName(rr.Target)} }
func (rr *CNAME) String() string { return rr.Hdr.String() + rr.Target }
func (rr *CNAME) len() int { return rr.Hdr.len() + len(rr.Target) + 1 }
func (rr *CNAME) String() string { return rr.Hdr.String() + sprintName(rr.Target) }
type HINFO struct {
Hdr RR_Header
@ -255,33 +250,23 @@ type HINFO struct {
Os string
}
func (rr *HINFO) Header() *RR_Header { return &rr.Hdr }
func (rr *HINFO) copy() RR { return &HINFO{*rr.Hdr.copyHeader(), rr.Cpu, rr.Os} }
func (rr *HINFO) String() string {
return rr.Hdr.String() + sprintTxt([]string{rr.Cpu, rr.Os})
}
func (rr *HINFO) len() int { return rr.Hdr.len() + len(rr.Cpu) + 1 + len(rr.Os) + 1 }
type MB struct {
Hdr RR_Header
Mb string `dns:"cdomain-name"`
}
func (rr *MB) Header() *RR_Header { return &rr.Hdr }
func (rr *MB) copy() RR { return &MB{*rr.Hdr.copyHeader(), sprintName(rr.Mb)} }
func (rr *MB) String() string { return rr.Hdr.String() + rr.Mb }
func (rr *MB) len() int { return rr.Hdr.len() + len(rr.Mb) + 1 }
func (rr *MB) String() string { return rr.Hdr.String() + sprintName(rr.Mb) }
type MG struct {
Hdr RR_Header
Mg string `dns:"cdomain-name"`
}
func (rr *MG) Header() *RR_Header { return &rr.Hdr }
func (rr *MG) copy() RR { return &MG{*rr.Hdr.copyHeader(), rr.Mg} }
func (rr *MG) len() int { l := len(rr.Mg) + 1; return rr.Hdr.len() + l }
func (rr *MG) String() string { return rr.Hdr.String() + sprintName(rr.Mg) }
func (rr *MG) String() string { return rr.Hdr.String() + sprintName(rr.Mg) }
type MINFO struct {
Hdr RR_Header
@ -289,28 +274,15 @@ type MINFO struct {
Email string `dns:"cdomain-name"`
}
func (rr *MINFO) Header() *RR_Header { return &rr.Hdr }
func (rr *MINFO) copy() RR { return &MINFO{*rr.Hdr.copyHeader(), rr.Rmail, rr.Email} }
func (rr *MINFO) String() string {
return rr.Hdr.String() + sprintName(rr.Rmail) + " " + sprintName(rr.Email)
}
func (rr *MINFO) len() int {
l := len(rr.Rmail) + 1
n := len(rr.Email) + 1
return rr.Hdr.len() + l + n
}
type MR struct {
Hdr RR_Header
Mr string `dns:"cdomain-name"`
}
func (rr *MR) Header() *RR_Header { return &rr.Hdr }
func (rr *MR) copy() RR { return &MR{*rr.Hdr.copyHeader(), rr.Mr} }
func (rr *MR) len() int { l := len(rr.Mr) + 1; return rr.Hdr.len() + l }
func (rr *MR) String() string {
return rr.Hdr.String() + sprintName(rr.Mr)
}
@ -320,10 +292,6 @@ type MF struct {
Mf string `dns:"cdomain-name"`
}
func (rr *MF) Header() *RR_Header { return &rr.Hdr }
func (rr *MF) copy() RR { return &MF{*rr.Hdr.copyHeader(), rr.Mf} }
func (rr *MF) len() int { return rr.Hdr.len() + len(rr.Mf) + 1 }
func (rr *MF) String() string {
return rr.Hdr.String() + sprintName(rr.Mf)
}
@ -333,10 +301,6 @@ type MD struct {
Md string `dns:"cdomain-name"`
}
func (rr *MD) Header() *RR_Header { return &rr.Hdr }
func (rr *MD) copy() RR { return &MD{*rr.Hdr.copyHeader(), rr.Md} }
func (rr *MD) len() int { return rr.Hdr.len() + len(rr.Md) + 1 }
func (rr *MD) String() string {
return rr.Hdr.String() + sprintName(rr.Md)
}
@ -347,10 +311,6 @@ type MX struct {
Mx string `dns:"cdomain-name"`
}
func (rr *MX) Header() *RR_Header { return &rr.Hdr }
func (rr *MX) copy() RR { return &MX{*rr.Hdr.copyHeader(), rr.Preference, rr.Mx} }
func (rr *MX) len() int { l := len(rr.Mx) + 1; return rr.Hdr.len() + l + 2 }
func (rr *MX) String() string {
return rr.Hdr.String() + strconv.Itoa(int(rr.Preference)) + " " + sprintName(rr.Mx)
}
@ -361,10 +321,6 @@ type AFSDB struct {
Hostname string `dns:"cdomain-name"`
}
func (rr *AFSDB) Header() *RR_Header { return &rr.Hdr }
func (rr *AFSDB) copy() RR { return &AFSDB{*rr.Hdr.copyHeader(), rr.Subtype, rr.Hostname} }
func (rr *AFSDB) len() int { l := len(rr.Hostname) + 1; return rr.Hdr.len() + l + 2 }
func (rr *AFSDB) String() string {
return rr.Hdr.String() + strconv.Itoa(int(rr.Subtype)) + " " + sprintName(rr.Hostname)
}
@ -374,10 +330,6 @@ type X25 struct {
PSDNAddress string
}
func (rr *X25) Header() *RR_Header { return &rr.Hdr }
func (rr *X25) copy() RR { return &X25{*rr.Hdr.copyHeader(), rr.PSDNAddress} }
func (rr *X25) len() int { return rr.Hdr.len() + len(rr.PSDNAddress) + 1 }
func (rr *X25) String() string {
return rr.Hdr.String() + rr.PSDNAddress
}
@ -388,10 +340,6 @@ type RT struct {
Host string `dns:"cdomain-name"`
}
func (rr *RT) Header() *RR_Header { return &rr.Hdr }
func (rr *RT) copy() RR { return &RT{*rr.Hdr.copyHeader(), rr.Preference, rr.Host} }
func (rr *RT) len() int { l := len(rr.Host) + 1; return rr.Hdr.len() + l + 2 }
func (rr *RT) String() string {
return rr.Hdr.String() + strconv.Itoa(int(rr.Preference)) + " " + sprintName(rr.Host)
}
@ -401,10 +349,6 @@ type NS struct {
Ns string `dns:"cdomain-name"`
}
func (rr *NS) Header() *RR_Header { return &rr.Hdr }
func (rr *NS) len() int { l := len(rr.Ns) + 1; return rr.Hdr.len() + l }
func (rr *NS) copy() RR { return &NS{*rr.Hdr.copyHeader(), rr.Ns} }
func (rr *NS) String() string {
return rr.Hdr.String() + sprintName(rr.Ns)
}
@ -414,10 +358,6 @@ type PTR struct {
Ptr string `dns:"cdomain-name"`
}
func (rr *PTR) Header() *RR_Header { return &rr.Hdr }
func (rr *PTR) copy() RR { return &PTR{*rr.Hdr.copyHeader(), rr.Ptr} }
func (rr *PTR) len() int { l := len(rr.Ptr) + 1; return rr.Hdr.len() + l }
func (rr *PTR) String() string {
return rr.Hdr.String() + sprintName(rr.Ptr)
}
@ -428,10 +368,6 @@ type RP struct {
Txt string `dns:"domain-name"`
}
func (rr *RP) Header() *RR_Header { return &rr.Hdr }
func (rr *RP) copy() RR { return &RP{*rr.Hdr.copyHeader(), rr.Mbox, rr.Txt} }
func (rr *RP) len() int { return rr.Hdr.len() + len(rr.Mbox) + 1 + len(rr.Txt) + 1 }
func (rr *RP) String() string {
return rr.Hdr.String() + rr.Mbox + " " + sprintTxt([]string{rr.Txt})
}
@ -447,11 +383,6 @@ type SOA struct {
Minttl uint32
}
func (rr *SOA) Header() *RR_Header { return &rr.Hdr }
func (rr *SOA) copy() RR {
return &SOA{*rr.Hdr.copyHeader(), rr.Ns, rr.Mbox, rr.Serial, rr.Refresh, rr.Retry, rr.Expire, rr.Minttl}
}
func (rr *SOA) String() string {
return rr.Hdr.String() + sprintName(rr.Ns) + " " + sprintName(rr.Mbox) +
" " + strconv.FormatInt(int64(rr.Serial), 10) +
@ -461,24 +392,11 @@ func (rr *SOA) String() string {
" " + strconv.FormatInt(int64(rr.Minttl), 10)
}
func (rr *SOA) len() int {
l := len(rr.Ns) + 1
n := len(rr.Mbox) + 1
return rr.Hdr.len() + l + n + 20
}
type TXT struct {
Hdr RR_Header
Txt []string `dns:"txt"`
}
func (rr *TXT) Header() *RR_Header { return &rr.Hdr }
func (rr *TXT) copy() RR {
cp := make([]string, len(rr.Txt), cap(rr.Txt))
copy(cp, rr.Txt)
return &TXT{*rr.Hdr.copyHeader(), cp}
}
func (rr *TXT) String() string { return rr.Hdr.String() + sprintTxt(rr.Txt) }
func sprintName(s string) string {
@ -621,36 +539,13 @@ func nextByte(b []byte, offset int) (byte, int) {
}
}
func (rr *TXT) len() int {
l := rr.Hdr.len()
for _, t := range rr.Txt {
l += len(t) + 1
}
return l
}
type SPF struct {
Hdr RR_Header
Txt []string `dns:"txt"`
}
func (rr *SPF) Header() *RR_Header { return &rr.Hdr }
func (rr *SPF) copy() RR {
cp := make([]string, len(rr.Txt), cap(rr.Txt))
copy(cp, rr.Txt)
return &SPF{*rr.Hdr.copyHeader(), cp}
}
func (rr *SPF) String() string { return rr.Hdr.String() + sprintTxt(rr.Txt) }
func (rr *SPF) len() int {
l := rr.Hdr.len()
for _, t := range rr.Txt {
l += len(t) + 1
}
return l
}
type SRV struct {
Hdr RR_Header
Priority uint16
@ -659,12 +554,6 @@ type SRV struct {
Target string `dns:"domain-name"`
}
func (rr *SRV) Header() *RR_Header { return &rr.Hdr }
func (rr *SRV) len() int { l := len(rr.Target) + 1; return rr.Hdr.len() + l + 6 }
func (rr *SRV) copy() RR {
return &SRV{*rr.Hdr.copyHeader(), rr.Priority, rr.Weight, rr.Port, rr.Target}
}
func (rr *SRV) String() string {
return rr.Hdr.String() +
strconv.Itoa(int(rr.Priority)) + " " +
@ -682,11 +571,6 @@ type NAPTR struct {
Replacement string `dns:"domain-name"`
}
func (rr *NAPTR) Header() *RR_Header { return &rr.Hdr }
func (rr *NAPTR) copy() RR {
return &NAPTR{*rr.Hdr.copyHeader(), rr.Order, rr.Preference, rr.Flags, rr.Service, rr.Regexp, rr.Replacement}
}
func (rr *NAPTR) String() string {
return rr.Hdr.String() +
strconv.Itoa(int(rr.Order)) + " " +
@ -697,11 +581,6 @@ func (rr *NAPTR) String() string {
rr.Replacement
}
func (rr *NAPTR) len() int {
return rr.Hdr.len() + 4 + len(rr.Flags) + 1 + len(rr.Service) + 1 +
len(rr.Regexp) + 1 + len(rr.Replacement) + 1
}
// The CERT resource record, see RFC 4398.
type CERT struct {
Hdr RR_Header
@ -711,11 +590,6 @@ type CERT struct {
Certificate string `dns:"base64"`
}
func (rr *CERT) Header() *RR_Header { return &rr.Hdr }
func (rr *CERT) copy() RR {
return &CERT{*rr.Hdr.copyHeader(), rr.Type, rr.KeyTag, rr.Algorithm, rr.Certificate}
}
func (rr *CERT) String() string {
var (
ok bool
@ -733,21 +607,12 @@ func (rr *CERT) String() string {
" " + rr.Certificate
}
func (rr *CERT) len() int {
return rr.Hdr.len() + 5 +
base64.StdEncoding.DecodedLen(len(rr.Certificate))
}
// The DNAME resource record, see RFC 2672.
type DNAME struct {
Hdr RR_Header
Target string `dns:"domain-name"`
}
func (rr *DNAME) Header() *RR_Header { return &rr.Hdr }
func (rr *DNAME) copy() RR { return &DNAME{*rr.Hdr.copyHeader(), rr.Target} }
func (rr *DNAME) len() int { l := len(rr.Target) + 1; return rr.Hdr.len() + l }
func (rr *DNAME) String() string {
return rr.Hdr.String() + sprintName(rr.Target)
}
@ -757,10 +622,6 @@ type A struct {
A net.IP `dns:"a"`
}
func (rr *A) Header() *RR_Header { return &rr.Hdr }
func (rr *A) copy() RR { return &A{*rr.Hdr.copyHeader(), copyIP(rr.A)} }
func (rr *A) len() int { return rr.Hdr.len() + net.IPv4len }
func (rr *A) String() string {
if rr.A == nil {
return rr.Hdr.String()
@ -773,10 +634,6 @@ type AAAA struct {
AAAA net.IP `dns:"aaaa"`
}
func (rr *AAAA) Header() *RR_Header { return &rr.Hdr }
func (rr *AAAA) copy() RR { return &AAAA{*rr.Hdr.copyHeader(), copyIP(rr.AAAA)} }
func (rr *AAAA) len() int { return rr.Hdr.len() + net.IPv6len }
func (rr *AAAA) String() string {
if rr.AAAA == nil {
return rr.Hdr.String()
@ -791,12 +648,9 @@ type PX struct {
Mapx400 string `dns:"domain-name"`
}
func (rr *PX) Header() *RR_Header { return &rr.Hdr }
func (rr *PX) copy() RR { return &PX{*rr.Hdr.copyHeader(), rr.Preference, rr.Map822, rr.Mapx400} }
func (rr *PX) String() string {
return rr.Hdr.String() + strconv.Itoa(int(rr.Preference)) + " " + sprintName(rr.Map822) + " " + sprintName(rr.Mapx400)
}
func (rr *PX) len() int { return rr.Hdr.len() + 2 + len(rr.Map822) + 1 + len(rr.Mapx400) + 1 }
type GPOS struct {
Hdr RR_Header
@ -805,11 +659,6 @@ type GPOS struct {
Altitude string
}
func (rr *GPOS) Header() *RR_Header { return &rr.Hdr }
func (rr *GPOS) copy() RR { return &GPOS{*rr.Hdr.copyHeader(), rr.Longitude, rr.Latitude, rr.Altitude} }
func (rr *GPOS) len() int {
return rr.Hdr.len() + len(rr.Longitude) + len(rr.Latitude) + len(rr.Altitude) + 3
}
func (rr *GPOS) String() string {
return rr.Hdr.String() + rr.Longitude + " " + rr.Latitude + " " + rr.Altitude
}
@ -825,12 +674,6 @@ type LOC struct {
Altitude uint32
}
func (rr *LOC) Header() *RR_Header { return &rr.Hdr }
func (rr *LOC) len() int { return rr.Hdr.len() + 4 + 12 }
func (rr *LOC) copy() RR {
return &LOC{*rr.Hdr.copyHeader(), rr.Version, rr.Size, rr.HorizPre, rr.VertPre, rr.Latitude, rr.Longitude, rr.Altitude}
}
// cmToM takes a cm value expressed in RFC1876 SIZE mantissa/exponent
// format and returns a string in m (two decimals for the cm)
func cmToM(m, e uint8) string {
@ -914,11 +757,6 @@ type RRSIG struct {
Signature string `dns:"base64"`
}
func (rr *RRSIG) Header() *RR_Header { return &rr.Hdr }
func (rr *RRSIG) copy() RR {
return &RRSIG{*rr.Hdr.copyHeader(), rr.TypeCovered, rr.Algorithm, rr.Labels, rr.OrigTtl, rr.Expiration, rr.Inception, rr.KeyTag, rr.SignerName, rr.Signature}
}
func (rr *RRSIG) String() string {
s := rr.Hdr.String()
s += Type(rr.TypeCovered).String()
@ -933,24 +771,12 @@ func (rr *RRSIG) String() string {
return s
}
func (rr *RRSIG) len() int {
return rr.Hdr.len() + len(rr.SignerName) + 1 +
base64.StdEncoding.DecodedLen(len(rr.Signature)) + 18
}
type NSEC struct {
Hdr RR_Header
NextDomain string `dns:"domain-name"`
TypeBitMap []uint16 `dns:"nsec"`
}
func (rr *NSEC) Header() *RR_Header { return &rr.Hdr }
func (rr *NSEC) copy() RR {
cp := make([]uint16, len(rr.TypeBitMap), cap(rr.TypeBitMap))
copy(cp, rr.TypeBitMap)
return &NSEC{*rr.Hdr.copyHeader(), rr.NextDomain, cp}
}
func (rr *NSEC) String() string {
s := rr.Hdr.String() + sprintName(rr.NextDomain)
for i := 0; i < len(rr.TypeBitMap); i++ {
@ -988,12 +814,6 @@ type DS struct {
Digest string `dns:"hex"`
}
func (rr *DS) Header() *RR_Header { return &rr.Hdr }
func (rr *DS) len() int { return rr.Hdr.len() + 4 + len(rr.Digest)/2 }
func (rr *DS) copy() RR {
return &DS{*rr.Hdr.copyHeader(), rr.KeyTag, rr.Algorithm, rr.DigestType, rr.Digest}
}
func (rr *DS) String() string {
return rr.Hdr.String() + strconv.Itoa(int(rr.KeyTag)) +
" " + strconv.Itoa(int(rr.Algorithm)) +
@ -1007,10 +827,6 @@ type KX struct {
Exchanger string `dns:"domain-name"`
}
func (rr *KX) Header() *RR_Header { return &rr.Hdr }
func (rr *KX) len() int { return rr.Hdr.len() + 2 + len(rr.Exchanger) + 1 }
func (rr *KX) copy() RR { return &KX{*rr.Hdr.copyHeader(), rr.Preference, rr.Exchanger} }
func (rr *KX) String() string {
return rr.Hdr.String() + strconv.Itoa(int(rr.Preference)) +
" " + sprintName(rr.Exchanger)
@ -1024,12 +840,6 @@ type TA struct {
Digest string `dns:"hex"`
}
func (rr *TA) Header() *RR_Header { return &rr.Hdr }
func (rr *TA) len() int { return rr.Hdr.len() + 4 + len(rr.Digest)/2 }
func (rr *TA) copy() RR {
return &TA{*rr.Hdr.copyHeader(), rr.KeyTag, rr.Algorithm, rr.DigestType, rr.Digest}
}
func (rr *TA) String() string {
return rr.Hdr.String() + strconv.Itoa(int(rr.KeyTag)) +
" " + strconv.Itoa(int(rr.Algorithm)) +
@ -1043,10 +853,6 @@ type TALINK struct {
NextName string `dns:"domain-name"`
}
func (rr *TALINK) Header() *RR_Header { return &rr.Hdr }
func (rr *TALINK) copy() RR { return &TALINK{*rr.Hdr.copyHeader(), rr.PreviousName, rr.NextName} }
func (rr *TALINK) len() int { return rr.Hdr.len() + len(rr.PreviousName) + len(rr.NextName) + 2 }
func (rr *TALINK) String() string {
return rr.Hdr.String() +
sprintName(rr.PreviousName) + " " + sprintName(rr.NextName)
@ -1059,12 +865,6 @@ type SSHFP struct {
FingerPrint string `dns:"hex"`
}
func (rr *SSHFP) Header() *RR_Header { return &rr.Hdr }
func (rr *SSHFP) len() int { return rr.Hdr.len() + 2 + len(rr.FingerPrint)/2 }
func (rr *SSHFP) copy() RR {
return &SSHFP{*rr.Hdr.copyHeader(), rr.Algorithm, rr.Type, rr.FingerPrint}
}
func (rr *SSHFP) String() string {
return rr.Hdr.String() + strconv.Itoa(int(rr.Algorithm)) +
" " + strconv.Itoa(int(rr.Type)) +
@ -1085,11 +885,6 @@ type IPSECKEY struct {
PublicKey string `dns:"base64"`
}
func (rr *IPSECKEY) Header() *RR_Header { return &rr.Hdr }
func (rr *IPSECKEY) copy() RR {
return &IPSECKEY{*rr.Hdr.copyHeader(), rr.Precedence, rr.GatewayType, rr.Algorithm, rr.GatewayA, rr.GatewayAAAA, rr.GatewayName, rr.PublicKey}
}
func (rr *IPSECKEY) String() string {
s := rr.Hdr.String() + strconv.Itoa(int(rr.Precedence)) +
" " + strconv.Itoa(int(rr.GatewayType)) +
@ -1143,14 +938,6 @@ type DNSKEY struct {
PublicKey string `dns:"base64"`
}
func (rr *DNSKEY) Header() *RR_Header { return &rr.Hdr }
func (rr *DNSKEY) len() int {
return rr.Hdr.len() + 4 + base64.StdEncoding.DecodedLen(len(rr.PublicKey))
}
func (rr *DNSKEY) copy() RR {
return &DNSKEY{*rr.Hdr.copyHeader(), rr.Flags, rr.Protocol, rr.Algorithm, rr.PublicKey}
}
func (rr *DNSKEY) String() string {
return rr.Hdr.String() + strconv.Itoa(int(rr.Flags)) +
" " + strconv.Itoa(int(rr.Protocol)) +
@ -1166,12 +953,6 @@ type RKEY struct {
PublicKey string `dns:"base64"`
}
func (rr *RKEY) Header() *RR_Header { return &rr.Hdr }
func (rr *RKEY) len() int { return rr.Hdr.len() + 4 + base64.StdEncoding.DecodedLen(len(rr.PublicKey)) }
func (rr *RKEY) copy() RR {
return &RKEY{*rr.Hdr.copyHeader(), rr.Flags, rr.Protocol, rr.Algorithm, rr.PublicKey}
}
func (rr *RKEY) String() string {
return rr.Hdr.String() + strconv.Itoa(int(rr.Flags)) +
" " + strconv.Itoa(int(rr.Protocol)) +
@ -1184,10 +965,7 @@ type NSAPPTR struct {
Ptr string `dns:"domain-name"`
}
func (rr *NSAPPTR) Header() *RR_Header { return &rr.Hdr }
func (rr *NSAPPTR) copy() RR { return &NSAPPTR{*rr.Hdr.copyHeader(), rr.Ptr} }
func (rr *NSAPPTR) String() string { return rr.Hdr.String() + sprintName(rr.Ptr) }
func (rr *NSAPPTR) len() int { return rr.Hdr.len() + len(rr.Ptr) }
func (rr *NSAPPTR) String() string { return rr.Hdr.String() + sprintName(rr.Ptr) }
type NSEC3 struct {
Hdr RR_Header
@ -1201,13 +979,6 @@ type NSEC3 struct {
TypeBitMap []uint16 `dns:"nsec"`
}
func (rr *NSEC3) Header() *RR_Header { return &rr.Hdr }
func (rr *NSEC3) copy() RR {
cp := make([]uint16, len(rr.TypeBitMap), cap(rr.TypeBitMap))
copy(cp, rr.TypeBitMap)
return &NSEC3{*rr.Hdr.copyHeader(), rr.Hash, rr.Flags, rr.Iterations, rr.SaltLength, rr.Salt, rr.HashLength, rr.NextDomain, cp}
}
func (rr *NSEC3) String() string {
s := rr.Hdr.String()
s += strconv.Itoa(int(rr.Hash)) +
@ -1243,12 +1014,6 @@ type NSEC3PARAM struct {
Salt string `dns:"hex"`
}
func (rr *NSEC3PARAM) Header() *RR_Header { return &rr.Hdr }
func (rr *NSEC3PARAM) len() int { return rr.Hdr.len() + 2 + 4 + 1 + len(rr.Salt)/2 }
func (rr *NSEC3PARAM) copy() RR {
return &NSEC3PARAM{*rr.Hdr.copyHeader(), rr.Hash, rr.Flags, rr.Iterations, rr.SaltLength, rr.Salt}
}
func (rr *NSEC3PARAM) String() string {
s := rr.Hdr.String()
s += strconv.Itoa(int(rr.Hash)) +
@ -1271,31 +1036,17 @@ type TKEY struct {
OtherData string
}
func (rr *TKEY) Header() *RR_Header { return &rr.Hdr }
func (rr *TKEY) copy() RR {
return &TKEY{*rr.Hdr.copyHeader(), rr.Algorithm, rr.Inception, rr.Expiration, rr.Mode, rr.Error, rr.KeySize, rr.Key, rr.OtherLen, rr.OtherData}
}
func (rr *TKEY) String() string {
// It has no presentation format
return ""
}
func (rr *TKEY) len() int {
return rr.Hdr.len() + len(rr.Algorithm) + 1 + 4 + 4 + 6 +
len(rr.Key) + 2 + len(rr.OtherData)
}
// RFC3597 represents an unknown/generic RR.
type RFC3597 struct {
Hdr RR_Header
Rdata string `dns:"hex"`
}
func (rr *RFC3597) Header() *RR_Header { return &rr.Hdr }
func (rr *RFC3597) copy() RR { return &RFC3597{*rr.Hdr.copyHeader(), rr.Rdata} }
func (rr *RFC3597) len() int { return rr.Hdr.len() + len(rr.Rdata)/2 + 2 }
func (rr *RFC3597) String() string {
// Let's call it a hack
s := rfc3597Header(rr.Hdr)
@ -1321,9 +1072,6 @@ type URI struct {
Target string `dns:"octet"`
}
func (rr *URI) Header() *RR_Header { return &rr.Hdr }
func (rr *URI) copy() RR { return &URI{*rr.Hdr.copyHeader(), rr.Weight, rr.Priority, rr.Target} }
func (rr *URI) len() int { return rr.Hdr.len() + 4 + len(rr.Target) }
func (rr *URI) String() string {
return rr.Hdr.String() + strconv.Itoa(int(rr.Priority)) +
" " + strconv.Itoa(int(rr.Weight)) + " " + sprintTxtOctet(rr.Target)
@ -1334,10 +1082,7 @@ type DHCID struct {
Digest string `dns:"base64"`
}
func (rr *DHCID) Header() *RR_Header { return &rr.Hdr }
func (rr *DHCID) copy() RR { return &DHCID{*rr.Hdr.copyHeader(), rr.Digest} }
func (rr *DHCID) String() string { return rr.Hdr.String() + rr.Digest }
func (rr *DHCID) len() int { return rr.Hdr.len() + base64.StdEncoding.DecodedLen(len(rr.Digest)) }
func (rr *DHCID) String() string { return rr.Hdr.String() + rr.Digest }
type TLSA struct {
Hdr RR_Header
@ -1347,13 +1092,6 @@ type TLSA struct {
Certificate string `dns:"hex"`
}
func (rr *TLSA) Header() *RR_Header { return &rr.Hdr }
func (rr *TLSA) len() int { return rr.Hdr.len() + 3 + len(rr.Certificate)/2 }
func (rr *TLSA) copy() RR {
return &TLSA{*rr.Hdr.copyHeader(), rr.Usage, rr.Selector, rr.MatchingType, rr.Certificate}
}
func (rr *TLSA) String() string {
return rr.Hdr.String() +
strconv.Itoa(int(rr.Usage)) +
@ -1372,13 +1110,6 @@ type HIP struct {
RendezvousServers []string `dns:"domain-name"`
}
func (rr *HIP) Header() *RR_Header { return &rr.Hdr }
func (rr *HIP) copy() RR {
cp := make([]string, len(rr.RendezvousServers), cap(rr.RendezvousServers))
copy(cp, rr.RendezvousServers)
return &HIP{*rr.Hdr.copyHeader(), rr.HitLength, rr.PublicKeyAlgorithm, rr.PublicKeyLength, rr.Hit, rr.PublicKey, cp}
}
func (rr *HIP) String() string {
s := rr.Hdr.String() +
strconv.Itoa(int(rr.PublicKeyAlgorithm)) +
@ -1390,38 +1121,13 @@ func (rr *HIP) String() string {
return s
}
func (rr *HIP) len() int {
l := rr.Hdr.len() + 4 +
len(rr.Hit)/2 +
base64.StdEncoding.DecodedLen(len(rr.PublicKey))
for _, d := range rr.RendezvousServers {
l += len(d) + 1
}
return l
}
type NINFO struct {
Hdr RR_Header
ZSData []string `dns:"txt"`
}
func (rr *NINFO) Header() *RR_Header { return &rr.Hdr }
func (rr *NINFO) copy() RR {
cp := make([]string, len(rr.ZSData), cap(rr.ZSData))
copy(cp, rr.ZSData)
return &NINFO{*rr.Hdr.copyHeader(), cp}
}
func (rr *NINFO) String() string { return rr.Hdr.String() + sprintTxt(rr.ZSData) }
func (rr *NINFO) len() int {
l := rr.Hdr.len()
for _, t := range rr.ZSData {
l += len(t) + 1
}
return l
}
type WKS struct {
Hdr RR_Header
Address net.IP `dns:"a"`
@ -1429,13 +1135,9 @@ type WKS struct {
BitMap []uint16 `dns:"wks"`
}
func (rr *WKS) Header() *RR_Header { return &rr.Hdr }
func (rr *WKS) len() int { return rr.Hdr.len() + net.IPv4len + 1 }
func (rr *WKS) copy() RR {
cp := make([]uint16, len(rr.BitMap), cap(rr.BitMap))
copy(cp, rr.BitMap)
return &WKS{*rr.Hdr.copyHeader(), copyIP(rr.Address), rr.Protocol, cp}
func (rr *WKS) len() int {
// TODO: this is missing something...
return rr.Hdr.len() + net.IPv4len + 1
}
func (rr *WKS) String() (s string) {
@ -1457,10 +1159,6 @@ type NID struct {
NodeID uint64
}
func (rr *NID) Header() *RR_Header { return &rr.Hdr }
func (rr *NID) copy() RR { return &NID{*rr.Hdr.copyHeader(), rr.Preference, rr.NodeID} }
func (rr *NID) len() int { return rr.Hdr.len() + 2 + 8 }
func (rr *NID) String() string {
s := rr.Hdr.String() + strconv.Itoa(int(rr.Preference))
node := fmt.Sprintf("%0.16x", rr.NodeID)
@ -1474,10 +1172,6 @@ type L32 struct {
Locator32 net.IP `dns:"a"`
}
func (rr *L32) Header() *RR_Header { return &rr.Hdr }
func (rr *L32) copy() RR { return &L32{*rr.Hdr.copyHeader(), rr.Preference, copyIP(rr.Locator32)} }
func (rr *L32) len() int { return rr.Hdr.len() + net.IPv4len }
func (rr *L32) String() string {
if rr.Locator32 == nil {
return rr.Hdr.String() + strconv.Itoa(int(rr.Preference))
@ -1492,10 +1186,6 @@ type L64 struct {
Locator64 uint64
}
func (rr *L64) Header() *RR_Header { return &rr.Hdr }
func (rr *L64) copy() RR { return &L64{*rr.Hdr.copyHeader(), rr.Preference, rr.Locator64} }
func (rr *L64) len() int { return rr.Hdr.len() + 2 + 8 }
func (rr *L64) String() string {
s := rr.Hdr.String() + strconv.Itoa(int(rr.Preference))
node := fmt.Sprintf("%0.16X", rr.Locator64)
@ -1509,10 +1199,6 @@ type LP struct {
Fqdn string `dns:"domain-name"`
}
func (rr *LP) Header() *RR_Header { return &rr.Hdr }
func (rr *LP) copy() RR { return &LP{*rr.Hdr.copyHeader(), rr.Preference, rr.Fqdn} }
func (rr *LP) len() int { return rr.Hdr.len() + 2 + len(rr.Fqdn) + 1 }
func (rr *LP) String() string {
return rr.Hdr.String() + strconv.Itoa(int(rr.Preference)) + " " + sprintName(rr.Fqdn)
}
@ -1522,20 +1208,14 @@ type EUI48 struct {
Address uint64 `dns:"uint48"`
}
func (rr *EUI48) Header() *RR_Header { return &rr.Hdr }
func (rr *EUI48) copy() RR { return &EUI48{*rr.Hdr.copyHeader(), rr.Address} }
func (rr *EUI48) String() string { return rr.Hdr.String() + euiToString(rr.Address, 48) }
func (rr *EUI48) len() int { return rr.Hdr.len() + 6 }
func (rr *EUI48) String() string { return rr.Hdr.String() + euiToString(rr.Address, 48) }
type EUI64 struct {
Hdr RR_Header
Address uint64
}
func (rr *EUI64) Header() *RR_Header { return &rr.Hdr }
func (rr *EUI64) copy() RR { return &EUI64{*rr.Hdr.copyHeader(), rr.Address} }
func (rr *EUI64) String() string { return rr.Hdr.String() + euiToString(rr.Address, 64) }
func (rr *EUI64) len() int { return rr.Hdr.len() + 8 }
func (rr *EUI64) String() string { return rr.Hdr.String() + euiToString(rr.Address, 64) }
type CAA struct {
Hdr RR_Header
@ -1544,9 +1224,6 @@ type CAA struct {
Value string `dns:"octet"`
}
func (rr *CAA) Header() *RR_Header { return &rr.Hdr }
func (rr *CAA) copy() RR { return &CAA{*rr.Hdr.copyHeader(), rr.Flag, rr.Tag, rr.Value} }
func (rr *CAA) len() int { return rr.Hdr.len() + 2 + len(rr.Tag) + len(rr.Value) }
func (rr *CAA) String() string {
return rr.Hdr.String() + strconv.Itoa(int(rr.Flag)) + " " + rr.Tag + " " + sprintTxtOctet(rr.Value)
}
@ -1556,62 +1233,42 @@ type UID struct {
Uid uint32
}
func (rr *UID) Header() *RR_Header { return &rr.Hdr }
func (rr *UID) copy() RR { return &UID{*rr.Hdr.copyHeader(), rr.Uid} }
func (rr *UID) String() string { return rr.Hdr.String() + strconv.FormatInt(int64(rr.Uid), 10) }
func (rr *UID) len() int { return rr.Hdr.len() + 4 }
func (rr *UID) String() string { return rr.Hdr.String() + strconv.FormatInt(int64(rr.Uid), 10) }
type GID struct {
Hdr RR_Header
Gid uint32
}
func (rr *GID) Header() *RR_Header { return &rr.Hdr }
func (rr *GID) copy() RR { return &GID{*rr.Hdr.copyHeader(), rr.Gid} }
func (rr *GID) String() string { return rr.Hdr.String() + strconv.FormatInt(int64(rr.Gid), 10) }
func (rr *GID) len() int { return rr.Hdr.len() + 4 }
func (rr *GID) String() string { return rr.Hdr.String() + strconv.FormatInt(int64(rr.Gid), 10) }
type UINFO struct {
Hdr RR_Header
Uinfo string
}
func (rr *UINFO) Header() *RR_Header { return &rr.Hdr }
func (rr *UINFO) copy() RR { return &UINFO{*rr.Hdr.copyHeader(), rr.Uinfo} }
func (rr *UINFO) String() string { return rr.Hdr.String() + sprintTxt([]string{rr.Uinfo}) }
func (rr *UINFO) len() int { return rr.Hdr.len() + len(rr.Uinfo) + 1 }
func (rr *UINFO) String() string { return rr.Hdr.String() + sprintTxt([]string{rr.Uinfo}) }
type EID struct {
Hdr RR_Header
Endpoint string `dns:"hex"`
}
func (rr *EID) Header() *RR_Header { return &rr.Hdr }
func (rr *EID) copy() RR { return &EID{*rr.Hdr.copyHeader(), rr.Endpoint} }
func (rr *EID) String() string { return rr.Hdr.String() + strings.ToUpper(rr.Endpoint) }
func (rr *EID) len() int { return rr.Hdr.len() + len(rr.Endpoint)/2 }
func (rr *EID) String() string { return rr.Hdr.String() + strings.ToUpper(rr.Endpoint) }
type NIMLOC struct {
Hdr RR_Header
Locator string `dns:"hex"`
}
func (rr *NIMLOC) Header() *RR_Header { return &rr.Hdr }
func (rr *NIMLOC) copy() RR { return &NIMLOC{*rr.Hdr.copyHeader(), rr.Locator} }
func (rr *NIMLOC) String() string { return rr.Hdr.String() + strings.ToUpper(rr.Locator) }
func (rr *NIMLOC) len() int { return rr.Hdr.len() + len(rr.Locator)/2 }
func (rr *NIMLOC) String() string { return rr.Hdr.String() + strings.ToUpper(rr.Locator) }
type OPENPGPKEY struct {
Hdr RR_Header
PublicKey string `dns:"base64"`
}
func (rr *OPENPGPKEY) Header() *RR_Header { return &rr.Hdr }
func (rr *OPENPGPKEY) copy() RR { return &OPENPGPKEY{*rr.Hdr.copyHeader(), rr.PublicKey} }
func (rr *OPENPGPKEY) String() string { return rr.Hdr.String() + rr.PublicKey }
func (rr *OPENPGPKEY) len() int {
return rr.Hdr.len() + base64.StdEncoding.DecodedLen(len(rr.PublicKey))
}
func (rr *OPENPGPKEY) String() string { return rr.Hdr.String() + rr.PublicKey }
// TimeToString translates the RRSIG's incep. and expir. times to the
// string representation used when printing the record.
@ -1669,73 +1326,3 @@ func copyIP(ip net.IP) net.IP {
copy(p, ip)
return p
}
// Map of constructors for each RR type.
var typeToRR = map[uint16]func() RR{
TypeA: func() RR { return new(A) },
TypeAAAA: func() RR { return new(AAAA) },
TypeAFSDB: func() RR { return new(AFSDB) },
TypeCAA: func() RR { return new(CAA) },
TypeCDS: func() RR { return new(CDS) },
TypeCERT: func() RR { return new(CERT) },
TypeCNAME: func() RR { return new(CNAME) },
TypeDHCID: func() RR { return new(DHCID) },
TypeDLV: func() RR { return new(DLV) },
TypeDNAME: func() RR { return new(DNAME) },
TypeKEY: func() RR { return new(KEY) },
TypeDNSKEY: func() RR { return new(DNSKEY) },
TypeDS: func() RR { return new(DS) },
TypeEUI48: func() RR { return new(EUI48) },
TypeEUI64: func() RR { return new(EUI64) },
TypeGID: func() RR { return new(GID) },
TypeGPOS: func() RR { return new(GPOS) },
TypeEID: func() RR { return new(EID) },
TypeHINFO: func() RR { return new(HINFO) },
TypeHIP: func() RR { return new(HIP) },
TypeIPSECKEY: func() RR { return new(IPSECKEY) },
TypeKX: func() RR { return new(KX) },
TypeL32: func() RR { return new(L32) },
TypeL64: func() RR { return new(L64) },
TypeLOC: func() RR { return new(LOC) },
TypeLP: func() RR { return new(LP) },
TypeMB: func() RR { return new(MB) },
TypeMD: func() RR { return new(MD) },
TypeMF: func() RR { return new(MF) },
TypeMG: func() RR { return new(MG) },
TypeMINFO: func() RR { return new(MINFO) },
TypeMR: func() RR { return new(MR) },
TypeMX: func() RR { return new(MX) },
TypeNAPTR: func() RR { return new(NAPTR) },
TypeNID: func() RR { return new(NID) },
TypeNINFO: func() RR { return new(NINFO) },
TypeNIMLOC: func() RR { return new(NIMLOC) },
TypeNS: func() RR { return new(NS) },
TypeNSAPPTR: func() RR { return new(NSAPPTR) },
TypeNSEC3: func() RR { return new(NSEC3) },
TypeNSEC3PARAM: func() RR { return new(NSEC3PARAM) },
TypeNSEC: func() RR { return new(NSEC) },
TypeOPENPGPKEY: func() RR { return new(OPENPGPKEY) },
TypeOPT: func() RR { return new(OPT) },
TypePTR: func() RR { return new(PTR) },
TypeRKEY: func() RR { return new(RKEY) },
TypeRP: func() RR { return new(RP) },
TypePX: func() RR { return new(PX) },
TypeSIG: func() RR { return new(SIG) },
TypeRRSIG: func() RR { return new(RRSIG) },
TypeRT: func() RR { return new(RT) },
TypeSOA: func() RR { return new(SOA) },
TypeSPF: func() RR { return new(SPF) },
TypeSRV: func() RR { return new(SRV) },
TypeSSHFP: func() RR { return new(SSHFP) },
TypeTA: func() RR { return new(TA) },
TypeTALINK: func() RR { return new(TALINK) },
TypeTKEY: func() RR { return new(TKEY) },
TypeTLSA: func() RR { return new(TLSA) },
TypeTSIG: func() RR { return new(TSIG) },
TypeTXT: func() RR { return new(TXT) },
TypeUID: func() RR { return new(UID) },
TypeUINFO: func() RR { return new(UINFO) },
TypeURI: func() RR { return new(URI) },
TypeWKS: func() RR { return new(WKS) },
TypeX25: func() RR { return new(X25) },
}

266
types_generate.go Normal file
View File

@ -0,0 +1,266 @@
//+build ignore
// types_generate.go is meant to run with go generate. It will use
// go/{importer,types} to track down all the RR struct types. Then for each type
// it will generate conversion tables (typeToRR and TypeToString) and banal
// methods (len, Header, copy) based on the struct tags. The generated source is
// written to ztypes.go, and is meant to be checked into git.
package main
import (
"bytes"
"fmt"
"go/format"
"go/importer"
"go/types"
"log"
"os"
"strings"
"text/template"
)
var skipLen = map[string]struct{}{
"NSEC": struct{}{},
"NSEC3": struct{}{},
"OPT": struct{}{},
"WKS": struct{}{},
"IPSECKEY": struct{}{},
}
var packageHdr = `
// *** DO NOT MODIFY ***
// AUTOGENERATED BY go generate
package dns
import (
"encoding/base64"
"net"
)
`
var typeToRR = template.Must(template.New("typeToRR").Parse(`
// Map of constructors for each RR type.
var typeToRR = map[uint16]func() RR{
{{range .}}{{if ne . "RFC3597"}} Type{{.}}: func() RR { return new({{.}}) },
{{end}}{{end}} }
`))
var typeToString = template.Must(template.New("typeToString").Parse(`
// TypeToString is a map of strings for each RR wire type.
var TypeToString = map[uint16]string{
{{range .}}{{if ne . "NSAPPTR"}} Type{{.}}: "{{.}}",
{{end}}{{end}} TypeNSAPPTR: "NSAP-PTR",
}
`))
var headerFunc = template.Must(template.New("headerFunc").Parse(`
// Header() functions
{{range .}} func (rr *{{.}}) Header() *RR_Header { return &rr.Hdr }
{{end}}
`))
// getTypeStruct will take a type and the package scope, and return the
// (innermost) struct if the type is considered a RR type (currently defined as
// those structs beginning with a RR_Header, could be redefined as implementing
// the RR interface). The bool return value indicates if embedded structs were
// resolved.
func getTypeStruct(t types.Type, scope *types.Scope) (*types.Struct, bool) {
st, ok := t.Underlying().(*types.Struct)
if !ok {
return nil, false
}
if st.Field(0).Type() == scope.Lookup("RR_Header").Type() {
return st, false
}
if st.Field(0).Anonymous() {
st, _ := getTypeStruct(st.Field(0).Type(), scope)
return st, true
}
return nil, false
}
func main() {
// Import and type-check the package
pkg, err := importer.Default().Import("github.com/miekg/dns")
fatalIfErr(err)
scope := pkg.Scope()
// Collect constants like TypeX
var numberedTypes []string
for _, name := range scope.Names() {
o := scope.Lookup(name)
if o == nil || !o.Exported() {
continue
}
b, ok := o.Type().(*types.Basic)
if !ok || b.Kind() != types.Uint16 {
continue
}
if !strings.HasPrefix(o.Name(), "Type") {
continue
}
name := strings.TrimPrefix(o.Name(), "Type")
if name == "PrivateRR" {
continue
}
numberedTypes = append(numberedTypes, name)
}
// Collect actual types (*X)
var namedTypes []string
for _, name := range scope.Names() {
o := scope.Lookup(name)
if o == nil || !o.Exported() {
continue
}
if st, _ := getTypeStruct(o.Type(), scope); st == nil {
continue
}
if name == "PrivateRR" {
continue
}
// Check if corresponding TypeX exists
if scope.Lookup("Type"+o.Name()) == nil && o.Name() != "RFC3597" {
log.Fatalf("Constant Type%s does not exist.", o.Name())
}
namedTypes = append(namedTypes, o.Name())
}
b := &bytes.Buffer{}
b.WriteString(packageHdr)
// Generate typeToRR
fatalIfErr(typeToRR.Execute(b, namedTypes))
// Generate typeToString
fatalIfErr(typeToString.Execute(b, numberedTypes))
// Generate headerFunc
fatalIfErr(headerFunc.Execute(b, namedTypes))
// Generate len()
fmt.Fprint(b, "// len() functions\n")
for _, name := range namedTypes {
if _, ok := skipLen[name]; ok {
continue
}
o := scope.Lookup(name)
st, isEmbedded := getTypeStruct(o.Type(), scope)
if isEmbedded {
continue
}
fmt.Fprintf(b, "func (rr *%s) len() int {\n", name)
fmt.Fprintf(b, "l := rr.Hdr.len()\n")
for i := 1; i < st.NumFields(); i++ {
o := func(s string) { fmt.Fprintf(b, s, st.Field(i).Name()) }
if _, ok := st.Field(i).Type().(*types.Slice); ok {
switch st.Tag(i) {
case `dns:"-"`:
// ignored
case `dns:"cdomain-name"`, `dns:"domain-name"`, `dns:"txt"`:
o("for _, x := range rr.%s { l += len(x) + 1 }\n")
default:
log.Fatalln(name, st.Field(i).Name(), st.Tag(i))
}
continue
}
switch st.Tag(i) {
case `dns:"-"`:
// ignored
case `dns:"cdomain-name"`, `dns:"domain-name"`:
o("l += len(rr.%s) + 1\n")
case `dns:"octet"`:
o("l += len(rr.%s)\n")
case `dns:"base64"`:
o("l += base64.StdEncoding.DecodedLen(len(rr.%s))\n")
case `dns:"size-hex"`, `dns:"hex"`:
o("l += len(rr.%s)/2 + 1\n")
case `dns:"a"`:
o("l += net.IPv4len // %s\n")
case `dns:"aaaa"`:
o("l += net.IPv6len // %s\n")
case `dns:"txt"`:
o("for _, t := range rr.%s { l += len(t) + 1 }\n")
case `dns:"uint48"`:
o("l += 6 // %s\n")
case "":
switch st.Field(i).Type().(*types.Basic).Kind() {
case types.Uint8:
o("l += 1 // %s\n")
case types.Uint16:
o("l += 2 // %s\n")
case types.Uint32:
o("l += 4 // %s\n")
case types.Uint64:
o("l += 8 // %s\n")
case types.String:
o("l += len(rr.%s) + 1\n")
default:
log.Fatalln(name, st.Field(i).Name())
}
default:
log.Fatalln(name, st.Field(i).Name(), st.Tag(i))
}
}
fmt.Fprintf(b, "return l }\n")
}
// Generate copy()
fmt.Fprint(b, "// copy() functions\n")
for _, name := range namedTypes {
o := scope.Lookup(name)
st, isEmbedded := getTypeStruct(o.Type(), scope)
if isEmbedded {
continue
}
fmt.Fprintf(b, "func (rr *%s) copy() RR {\n", name)
fields := []string{"*rr.Hdr.copyHeader()"}
for i := 1; i < st.NumFields(); i++ {
f := st.Field(i).Name()
if sl, ok := st.Field(i).Type().(*types.Slice); ok {
t := sl.Underlying().String()
t = strings.TrimPrefix(t, "[]")
t = strings.TrimPrefix(t, "github.com/miekg/dns.")
fmt.Fprintf(b, "%s := make([]%s, len(rr.%s)); copy(%s, rr.%s)\n",
f, t, f, f, f)
fields = append(fields, f)
continue
}
if st.Field(i).Type().String() == "net.IP" {
fields = append(fields, "copyIP(rr."+f+")")
continue
}
fields = append(fields, "rr."+f)
}
fmt.Fprintf(b, "return &%s{%s}\n", name, strings.Join(fields, ","))
fmt.Fprintf(b, "}\n")
}
// gofmt
res, err := format.Source(b.Bytes())
if err != nil {
b.WriteTo(os.Stderr)
log.Fatal(err)
}
// write result
f, err := os.Create("ztypes.go")
fatalIfErr(err)
defer f.Close()
f.Write(res)
}
func fatalIfErr(err error) {
if err != nil {
log.Fatal(err)
}
}

3
update_test.go
View File

@ -9,7 +9,8 @@ func TestDynamicUpdateParsing(t *testing.T) {
prefix := "example.com. IN "
for _, typ := range TypeToString {
if typ == "OPT" || typ == "AXFR" || typ == "IXFR" || typ == "ANY" || typ == "TKEY" ||
typ == "TSIG" || typ == "ISDN" || typ == "UNSPEC" || typ == "NULL" || typ == "ATMA" {
typ == "TSIG" || typ == "ISDN" || typ == "UNSPEC" || typ == "NULL" || typ == "ATMA" ||
typ == "Reserved" || typ == "None" || typ == "NXT" || typ == "MAILB" || typ == "MAILA" {
continue
}
r, err := NewRR(prefix + typ)

842
ztypes.go Normal file
View File

@ -0,0 +1,842 @@
// *** DO NOT MODIFY ***
// AUTOGENERATED BY go generate
package dns
import (
"encoding/base64"
"net"
)
// Map of constructors for each RR type.
var typeToRR = map[uint16]func() RR{
TypeA: func() RR { return new(A) },
TypeAAAA: func() RR { return new(AAAA) },
TypeAFSDB: func() RR { return new(AFSDB) },
TypeANY: func() RR { return new(ANY) },
TypeCAA: func() RR { return new(CAA) },
TypeCDNSKEY: func() RR { return new(CDNSKEY) },
TypeCDS: func() RR { return new(CDS) },
TypeCERT: func() RR { return new(CERT) },
TypeCNAME: func() RR { return new(CNAME) },
TypeDHCID: func() RR { return new(DHCID) },
TypeDLV: func() RR { return new(DLV) },
TypeDNAME: func() RR { return new(DNAME) },
TypeDNSKEY: func() RR { return new(DNSKEY) },
TypeDS: func() RR { return new(DS) },
TypeEID: func() RR { return new(EID) },
TypeEUI48: func() RR { return new(EUI48) },
TypeEUI64: func() RR { return new(EUI64) },
TypeGID: func() RR { return new(GID) },
TypeGPOS: func() RR { return new(GPOS) },
TypeHINFO: func() RR { return new(HINFO) },
TypeHIP: func() RR { return new(HIP) },
TypeIPSECKEY: func() RR { return new(IPSECKEY) },
TypeKEY: func() RR { return new(KEY) },
TypeKX: func() RR { return new(KX) },
TypeL32: func() RR { return new(L32) },
TypeL64: func() RR { return new(L64) },
TypeLOC: func() RR { return new(LOC) },
TypeLP: func() RR { return new(LP) },
TypeMB: func() RR { return new(MB) },
TypeMD: func() RR { return new(MD) },
TypeMF: func() RR { return new(MF) },
TypeMG: func() RR { return new(MG) },
TypeMINFO: func() RR { return new(MINFO) },
TypeMR: func() RR { return new(MR) },
TypeMX: func() RR { return new(MX) },
TypeNAPTR: func() RR { return new(NAPTR) },
TypeNID: func() RR { return new(NID) },
TypeNIMLOC: func() RR { return new(NIMLOC) },
TypeNINFO: func() RR { return new(NINFO) },
TypeNS: func() RR { return new(NS) },
TypeNSAPPTR: func() RR { return new(NSAPPTR) },
TypeNSEC: func() RR { return new(NSEC) },
TypeNSEC3: func() RR { return new(NSEC3) },
TypeNSEC3PARAM: func() RR { return new(NSEC3PARAM) },
TypeOPENPGPKEY: func() RR { return new(OPENPGPKEY) },
TypeOPT: func() RR { return new(OPT) },
TypePTR: func() RR { return new(PTR) },
TypePX: func() RR { return new(PX) },
TypeRKEY: func() RR { return new(RKEY) },
TypeRP: func() RR { return new(RP) },
TypeRRSIG: func() RR { return new(RRSIG) },
TypeRT: func() RR { return new(RT) },
TypeSIG: func() RR { return new(SIG) },
TypeSOA: func() RR { return new(SOA) },
TypeSPF: func() RR { return new(SPF) },
TypeSRV: func() RR { return new(SRV) },
TypeSSHFP: func() RR { return new(SSHFP) },
TypeTA: func() RR { return new(TA) },
TypeTALINK: func() RR { return new(TALINK) },
TypeTKEY: func() RR { return new(TKEY) },
TypeTLSA: func() RR { return new(TLSA) },
TypeTSIG: func() RR { return new(TSIG) },
TypeTXT: func() RR { return new(TXT) },
TypeUID: func() RR { return new(UID) },
TypeUINFO: func() RR { return new(UINFO) },
TypeURI: func() RR { return new(URI) },
TypeWKS: func() RR { return new(WKS) },
TypeX25: func() RR { return new(X25) },
}
// TypeToString is a map of strings for each RR wire type.
var TypeToString = map[uint16]string{
TypeA: "A",
TypeAAAA: "AAAA",
TypeAFSDB: "AFSDB",
TypeANY: "ANY",
TypeATMA: "ATMA",
TypeAXFR: "AXFR",
TypeCAA: "CAA",
TypeCDNSKEY: "CDNSKEY",
TypeCDS: "CDS",
TypeCERT: "CERT",
TypeCNAME: "CNAME",
TypeDHCID: "DHCID",
TypeDLV: "DLV",
TypeDNAME: "DNAME",
TypeDNSKEY: "DNSKEY",
TypeDS: "DS",
TypeEID: "EID",
TypeEUI48: "EUI48",
TypeEUI64: "EUI64",
TypeGID: "GID",
TypeGPOS: "GPOS",
TypeHINFO: "HINFO",
TypeHIP: "HIP",
TypeIPSECKEY: "IPSECKEY",
TypeISDN: "ISDN",
TypeIXFR: "IXFR",
TypeKEY: "KEY",
TypeKX: "KX",
TypeL32: "L32",
TypeL64: "L64",
TypeLOC: "LOC",
TypeLP: "LP",
TypeMAILA: "MAILA",
TypeMAILB: "MAILB",
TypeMB: "MB",
TypeMD: "MD",
TypeMF: "MF",
TypeMG: "MG",
TypeMINFO: "MINFO",
TypeMR: "MR",
TypeMX: "MX",
TypeNAPTR: "NAPTR",
TypeNID: "NID",
TypeNIMLOC: "NIMLOC",
TypeNINFO: "NINFO",
TypeNS: "NS",
TypeNSEC: "NSEC",
TypeNSEC3: "NSEC3",
TypeNSEC3PARAM: "NSEC3PARAM",
TypeNULL: "NULL",
TypeNXT: "NXT",
TypeNone: "None",
TypeOPENPGPKEY: "OPENPGPKEY",
TypeOPT: "OPT",
TypePTR: "PTR",
TypePX: "PX",
TypeRKEY: "RKEY",
TypeRP: "RP",
TypeRRSIG: "RRSIG",
TypeRT: "RT",
TypeReserved: "Reserved",
TypeSIG: "SIG",
TypeSOA: "SOA",
TypeSPF: "SPF",
TypeSRV: "SRV",
TypeSSHFP: "SSHFP",
TypeTA: "TA",
TypeTALINK: "TALINK",
TypeTKEY: "TKEY",
TypeTLSA: "TLSA",
TypeTSIG: "TSIG",
TypeTXT: "TXT",
TypeUID: "UID",
TypeUINFO: "UINFO",
TypeUNSPEC: "UNSPEC",
TypeURI: "URI",
TypeWKS: "WKS",
TypeX25: "X25",
TypeNSAPPTR: "NSAP-PTR",
}
// Header() functions
func (rr *A) Header() *RR_Header { return &rr.Hdr }
func (rr *AAAA) Header() *RR_Header { return &rr.Hdr }
func (rr *AFSDB) Header() *RR_Header { return &rr.Hdr }
func (rr *ANY) Header() *RR_Header { return &rr.Hdr }
func (rr *CAA) Header() *RR_Header { return &rr.Hdr }
func (rr *CDNSKEY) Header() *RR_Header { return &rr.Hdr }
func (rr *CDS) Header() *RR_Header { return &rr.Hdr }
func (rr *CERT) Header() *RR_Header { return &rr.Hdr }
func (rr *CNAME) Header() *RR_Header { return &rr.Hdr }
func (rr *DHCID) Header() *RR_Header { return &rr.Hdr }
func (rr *DLV) Header() *RR_Header { return &rr.Hdr }
func (rr *DNAME) Header() *RR_Header { return &rr.Hdr }
func (rr *DNSKEY) Header() *RR_Header { return &rr.Hdr }
func (rr *DS) Header() *RR_Header { return &rr.Hdr }
func (rr *EID) Header() *RR_Header { return &rr.Hdr }
func (rr *EUI48) Header() *RR_Header { return &rr.Hdr }
func (rr *EUI64) Header() *RR_Header { return &rr.Hdr }
func (rr *GID) Header() *RR_Header { return &rr.Hdr }
func (rr *GPOS) Header() *RR_Header { return &rr.Hdr }
func (rr *HINFO) Header() *RR_Header { return &rr.Hdr }
func (rr *HIP) Header() *RR_Header { return &rr.Hdr }
func (rr *IPSECKEY) Header() *RR_Header { return &rr.Hdr }
func (rr *KEY) Header() *RR_Header { return &rr.Hdr }
func (rr *KX) Header() *RR_Header { return &rr.Hdr }
func (rr *L32) Header() *RR_Header { return &rr.Hdr }
func (rr *L64) Header() *RR_Header { return &rr.Hdr }
func (rr *LOC) Header() *RR_Header { return &rr.Hdr }
func (rr *LP) Header() *RR_Header { return &rr.Hdr }
func (rr *MB) Header() *RR_Header { return &rr.Hdr }
func (rr *MD) Header() *RR_Header { return &rr.Hdr }
func (rr *MF) Header() *RR_Header { return &rr.Hdr }
func (rr *MG) Header() *RR_Header { return &rr.Hdr }
func (rr *MINFO) Header() *RR_Header { return &rr.Hdr }
func (rr *MR) Header() *RR_Header { return &rr.Hdr }
func (rr *MX) Header() *RR_Header { return &rr.Hdr }
func (rr *NAPTR) Header() *RR_Header { return &rr.Hdr }
func (rr *NID) Header() *RR_Header { return &rr.Hdr }
func (rr *NIMLOC) Header() *RR_Header { return &rr.Hdr }
func (rr *NINFO) Header() *RR_Header { return &rr.Hdr }
func (rr *NS) Header() *RR_Header { return &rr.Hdr }
func (rr *NSAPPTR) Header() *RR_Header { return &rr.Hdr }
func (rr *NSEC) Header() *RR_Header { return &rr.Hdr }
func (rr *NSEC3) Header() *RR_Header { return &rr.Hdr }
func (rr *NSEC3PARAM) Header() *RR_Header { return &rr.Hdr }
func (rr *OPENPGPKEY) Header() *RR_Header { return &rr.Hdr }
func (rr *OPT) Header() *RR_Header { return &rr.Hdr }
func (rr *PTR) Header() *RR_Header { return &rr.Hdr }
func (rr *PX) Header() *RR_Header { return &rr.Hdr }
func (rr *RFC3597) Header() *RR_Header { return &rr.Hdr }
func (rr *RKEY) Header() *RR_Header { return &rr.Hdr }
func (rr *RP) Header() *RR_Header { return &rr.Hdr }
func (rr *RRSIG) Header() *RR_Header { return &rr.Hdr }
func (rr *RT) Header() *RR_Header { return &rr.Hdr }
func (rr *SIG) Header() *RR_Header { return &rr.Hdr }
func (rr *SOA) Header() *RR_Header { return &rr.Hdr }
func (rr *SPF) Header() *RR_Header { return &rr.Hdr }
func (rr *SRV) Header() *RR_Header { return &rr.Hdr }
func (rr *SSHFP) Header() *RR_Header { return &rr.Hdr }
func (rr *TA) Header() *RR_Header { return &rr.Hdr }
func (rr *TALINK) Header() *RR_Header { return &rr.Hdr }
func (rr *TKEY) Header() *RR_Header { return &rr.Hdr }
func (rr *TLSA) Header() *RR_Header { return &rr.Hdr }
func (rr *TSIG) Header() *RR_Header { return &rr.Hdr }
func (rr *TXT) Header() *RR_Header { return &rr.Hdr }
func (rr *UID) Header() *RR_Header { return &rr.Hdr }
func (rr *UINFO) Header() *RR_Header { return &rr.Hdr }
func (rr *URI) Header() *RR_Header { return &rr.Hdr }
func (rr *WKS) Header() *RR_Header { return &rr.Hdr }
func (rr *X25) Header() *RR_Header { return &rr.Hdr }
// len() functions
func (rr *A) len() int {
l := rr.Hdr.len()
l += net.IPv4len // A
return l
}
func (rr *AAAA) len() int {
l := rr.Hdr.len()
l += net.IPv6len // AAAA
return l
}
func (rr *AFSDB) len() int {
l := rr.Hdr.len()
l += 2 // Subtype
l += len(rr.Hostname) + 1
return l
}
func (rr *ANY) len() int {
l := rr.Hdr.len()
return l
}
func (rr *CAA) len() int {
l := rr.Hdr.len()
l += 1 // Flag
l += len(rr.Tag) + 1
l += len(rr.Value)
return l
}
func (rr *CERT) len() int {
l := rr.Hdr.len()
l += 2 // Type
l += 2 // KeyTag
l += 1 // Algorithm
l += base64.StdEncoding.DecodedLen(len(rr.Certificate))
return l
}
func (rr *CNAME) len() int {
l := rr.Hdr.len()
l += len(rr.Target) + 1
return l
}
func (rr *DHCID) len() int {
l := rr.Hdr.len()
l += base64.StdEncoding.DecodedLen(len(rr.Digest))
return l
}
func (rr *DNAME) len() int {
l := rr.Hdr.len()
l += len(rr.Target) + 1
return l
}
func (rr *DNSKEY) len() int {
l := rr.Hdr.len()
l += 2 // Flags
l += 1 // Protocol
l += 1 // Algorithm
l += base64.StdEncoding.DecodedLen(len(rr.PublicKey))
return l
}
func (rr *DS) len() int {
l := rr.Hdr.len()
l += 2 // KeyTag
l += 1 // Algorithm
l += 1 // DigestType
l += len(rr.Digest)/2 + 1
return l
}
func (rr *EID) len() int {
l := rr.Hdr.len()
l += len(rr.Endpoint)/2 + 1
return l
}
func (rr *EUI48) len() int {
l := rr.Hdr.len()
l += 6 // Address
return l
}
func (rr *EUI64) len() int {
l := rr.Hdr.len()
l += 8 // Address
return l
}
func (rr *GID) len() int {
l := rr.Hdr.len()
l += 4 // Gid
return l
}
func (rr *GPOS) len() int {
l := rr.Hdr.len()
l += len(rr.Longitude) + 1
l += len(rr.Latitude) + 1
l += len(rr.Altitude) + 1
return l
}
func (rr *HINFO) len() int {
l := rr.Hdr.len()
l += len(rr.Cpu) + 1
l += len(rr.Os) + 1
return l
}
func (rr *HIP) len() int {
l := rr.Hdr.len()
l += 1 // HitLength
l += 1 // PublicKeyAlgorithm
l += 2 // PublicKeyLength
l += len(rr.Hit)/2 + 1
l += base64.StdEncoding.DecodedLen(len(rr.PublicKey))
for _, x := range rr.RendezvousServers {
l += len(x) + 1
}
return l
}
func (rr *KX) len() int {
l := rr.Hdr.len()
l += 2 // Preference
l += len(rr.Exchanger) + 1
return l
}
func (rr *L32) len() int {
l := rr.Hdr.len()
l += 2 // Preference
l += net.IPv4len // Locator32
return l
}
func (rr *L64) len() int {
l := rr.Hdr.len()
l += 2 // Preference
l += 8 // Locator64
return l
}
func (rr *LOC) len() int {
l := rr.Hdr.len()
l += 1 // Version
l += 1 // Size
l += 1 // HorizPre
l += 1 // VertPre
l += 4 // Latitude
l += 4 // Longitude
l += 4 // Altitude
return l
}
func (rr *LP) len() int {
l := rr.Hdr.len()
l += 2 // Preference
l += len(rr.Fqdn) + 1
return l
}
func (rr *MB) len() int {
l := rr.Hdr.len()
l += len(rr.Mb) + 1
return l
}
func (rr *MD) len() int {
l := rr.Hdr.len()
l += len(rr.Md) + 1
return l
}
func (rr *MF) len() int {
l := rr.Hdr.len()
l += len(rr.Mf) + 1
return l
}
func (rr *MG) len() int {
l := rr.Hdr.len()
l += len(rr.Mg) + 1
return l
}
func (rr *MINFO) len() int {
l := rr.Hdr.len()
l += len(rr.Rmail) + 1
l += len(rr.Email) + 1
return l
}
func (rr *MR) len() int {
l := rr.Hdr.len()
l += len(rr.Mr) + 1
return l
}
func (rr *MX) len() int {
l := rr.Hdr.len()
l += 2 // Preference
l += len(rr.Mx) + 1
return l
}
func (rr *NAPTR) len() int {
l := rr.Hdr.len()
l += 2 // Order
l += 2 // Preference
l += len(rr.Flags) + 1
l += len(rr.Service) + 1
l += len(rr.Regexp) + 1
l += len(rr.Replacement) + 1
return l
}
func (rr *NID) len() int {
l := rr.Hdr.len()
l += 2 // Preference
l += 8 // NodeID
return l
}
func (rr *NIMLOC) len() int {
l := rr.Hdr.len()
l += len(rr.Locator)/2 + 1
return l
}
func (rr *NINFO) len() int {
l := rr.Hdr.len()
for _, x := range rr.ZSData {
l += len(x) + 1
}
return l
}
func (rr *NS) len() int {
l := rr.Hdr.len()
l += len(rr.Ns) + 1
return l
}
func (rr *NSAPPTR) len() int {
l := rr.Hdr.len()
l += len(rr.Ptr) + 1
return l
}
func (rr *NSEC3PARAM) len() int {
l := rr.Hdr.len()
l += 1 // Hash
l += 1 // Flags
l += 2 // Iterations
l += 1 // SaltLength
l += len(rr.Salt)/2 + 1
return l
}
func (rr *OPENPGPKEY) len() int {
l := rr.Hdr.len()
l += base64.StdEncoding.DecodedLen(len(rr.PublicKey))
return l
}
func (rr *PTR) len() int {
l := rr.Hdr.len()
l += len(rr.Ptr) + 1
return l
}
func (rr *PX) len() int {
l := rr.Hdr.len()
l += 2 // Preference
l += len(rr.Map822) + 1
l += len(rr.Mapx400) + 1
return l
}
func (rr *RFC3597) len() int {
l := rr.Hdr.len()
l += len(rr.Rdata)/2 + 1
return l
}
func (rr *RKEY) len() int {
l := rr.Hdr.len()
l += 2 // Flags
l += 1 // Protocol
l += 1 // Algorithm
l += base64.StdEncoding.DecodedLen(len(rr.PublicKey))
return l
}
func (rr *RP) len() int {
l := rr.Hdr.len()
l += len(rr.Mbox) + 1
l += len(rr.Txt) + 1
return l
}
func (rr *RRSIG) len() int {
l := rr.Hdr.len()
l += 2 // TypeCovered
l += 1 // Algorithm
l += 1 // Labels
l += 4 // OrigTtl
l += 4 // Expiration
l += 4 // Inception
l += 2 // KeyTag
l += len(rr.SignerName) + 1
l += base64.StdEncoding.DecodedLen(len(rr.Signature))
return l
}
func (rr *RT) len() int {
l := rr.Hdr.len()
l += 2 // Preference
l += len(rr.Host) + 1
return l
}
func (rr *SOA) len() int {
l := rr.Hdr.len()
l += len(rr.Ns) + 1
l += len(rr.Mbox) + 1
l += 4 // Serial
l += 4 // Refresh
l += 4 // Retry
l += 4 // Expire
l += 4 // Minttl
return l
}
func (rr *SPF) len() int {
l := rr.Hdr.len()
for _, x := range rr.Txt {
l += len(x) + 1
}
return l
}
func (rr *SRV) len() int {
l := rr.Hdr.len()
l += 2 // Priority
l += 2 // Weight
l += 2 // Port
l += len(rr.Target) + 1
return l
}
func (rr *SSHFP) len() int {
l := rr.Hdr.len()
l += 1 // Algorithm
l += 1 // Type
l += len(rr.FingerPrint)/2 + 1
return l
}
func (rr *TA) len() int {
l := rr.Hdr.len()
l += 2 // KeyTag
l += 1 // Algorithm
l += 1 // DigestType
l += len(rr.Digest)/2 + 1
return l
}
func (rr *TALINK) len() int {
l := rr.Hdr.len()
l += len(rr.PreviousName) + 1
l += len(rr.NextName) + 1
return l
}
func (rr *TKEY) len() int {
l := rr.Hdr.len()
l += len(rr.Algorithm) + 1
l += 4 // Inception
l += 4 // Expiration
l += 2 // Mode
l += 2 // Error
l += 2 // KeySize
l += len(rr.Key) + 1
l += 2 // OtherLen
l += len(rr.OtherData) + 1
return l
}
func (rr *TLSA) len() int {
l := rr.Hdr.len()
l += 1 // Usage
l += 1 // Selector
l += 1 // MatchingType
l += len(rr.Certificate)/2 + 1
return l
}
func (rr *TSIG) len() int {
l := rr.Hdr.len()
l += len(rr.Algorithm) + 1
l += 6 // TimeSigned
l += 2 // Fudge
l += 2 // MACSize
l += len(rr.MAC)/2 + 1
l += 2 // OrigId
l += 2 // Error
l += 2 // OtherLen
l += len(rr.OtherData)/2 + 1
return l
}
func (rr *TXT) len() int {
l := rr.Hdr.len()
for _, x := range rr.Txt {
l += len(x) + 1
}
return l
}
func (rr *UID) len() int {
l := rr.Hdr.len()
l += 4 // Uid
return l
}
func (rr *UINFO) len() int {
l := rr.Hdr.len()
l += len(rr.Uinfo) + 1
return l
}
func (rr *URI) len() int {
l := rr.Hdr.len()
l += 2 // Priority
l += 2 // Weight
l += len(rr.Target)
return l
}
func (rr *X25) len() int {
l := rr.Hdr.len()
l += len(rr.PSDNAddress) + 1
return l
}
// copy() functions
func (rr *A) copy() RR {
return &A{*rr.Hdr.copyHeader(), copyIP(rr.A)}
}
func (rr *AAAA) copy() RR {
return &AAAA{*rr.Hdr.copyHeader(), copyIP(rr.AAAA)}
}
func (rr *AFSDB) copy() RR {
return &AFSDB{*rr.Hdr.copyHeader(), rr.Subtype, rr.Hostname}
}
func (rr *ANY) copy() RR {
return &ANY{*rr.Hdr.copyHeader()}
}
func (rr *CAA) copy() RR {
return &CAA{*rr.Hdr.copyHeader(), rr.Flag, rr.Tag, rr.Value}
}
func (rr *CERT) copy() RR {
return &CERT{*rr.Hdr.copyHeader(), rr.Type, rr.KeyTag, rr.Algorithm, rr.Certificate}
}
func (rr *CNAME) copy() RR {
return &CNAME{*rr.Hdr.copyHeader(), rr.Target}
}
func (rr *DHCID) copy() RR {
return &DHCID{*rr.Hdr.copyHeader(), rr.Digest}
}
func (rr *DNAME) copy() RR {
return &DNAME{*rr.Hdr.copyHeader(), rr.Target}
}
func (rr *DNSKEY) copy() RR {
return &DNSKEY{*rr.Hdr.copyHeader(), rr.Flags, rr.Protocol, rr.Algorithm, rr.PublicKey}
}
func (rr *DS) copy() RR {
return &DS{*rr.Hdr.copyHeader(), rr.KeyTag, rr.Algorithm, rr.DigestType, rr.Digest}
}
func (rr *EID) copy() RR {
return &EID{*rr.Hdr.copyHeader(), rr.Endpoint}
}
func (rr *EUI48) copy() RR {
return &EUI48{*rr.Hdr.copyHeader(), rr.Address}
}
func (rr *EUI64) copy() RR {
return &EUI64{*rr.Hdr.copyHeader(), rr.Address}
}
func (rr *GID) copy() RR {
return &GID{*rr.Hdr.copyHeader(), rr.Gid}
}
func (rr *GPOS) copy() RR {
return &GPOS{*rr.Hdr.copyHeader(), rr.Longitude, rr.Latitude, rr.Altitude}
}
func (rr *HINFO) copy() RR {
return &HINFO{*rr.Hdr.copyHeader(), rr.Cpu, rr.Os}
}
func (rr *HIP) copy() RR {
RendezvousServers := make([]string, len(rr.RendezvousServers))
copy(RendezvousServers, rr.RendezvousServers)
return &HIP{*rr.Hdr.copyHeader(), rr.HitLength, rr.PublicKeyAlgorithm, rr.PublicKeyLength, rr.Hit, rr.PublicKey, RendezvousServers}
}
func (rr *IPSECKEY) copy() RR {
return &IPSECKEY{*rr.Hdr.copyHeader(), rr.Precedence, rr.GatewayType, rr.Algorithm, copyIP(rr.GatewayA), copyIP(rr.GatewayAAAA), rr.GatewayName, rr.PublicKey}
}
func (rr *KX) copy() RR {
return &KX{*rr.Hdr.copyHeader(), rr.Preference, rr.Exchanger}
}
func (rr *L32) copy() RR {
return &L32{*rr.Hdr.copyHeader(), rr.Preference, copyIP(rr.Locator32)}
}
func (rr *L64) copy() RR {
return &L64{*rr.Hdr.copyHeader(), rr.Preference, rr.Locator64}
}
func (rr *LOC) copy() RR {
return &LOC{*rr.Hdr.copyHeader(), rr.Version, rr.Size, rr.HorizPre, rr.VertPre, rr.Latitude, rr.Longitude, rr.Altitude}
}
func (rr *LP) copy() RR {
return &LP{*rr.Hdr.copyHeader(), rr.Preference, rr.Fqdn}
}
func (rr *MB) copy() RR {
return &MB{*rr.Hdr.copyHeader(), rr.Mb}
}
func (rr *MD) copy() RR {
return &MD{*rr.Hdr.copyHeader(), rr.Md}
}
func (rr *MF) copy() RR {
return &MF{*rr.Hdr.copyHeader(), rr.Mf}
}
func (rr *MG) copy() RR {
return &MG{*rr.Hdr.copyHeader(), rr.Mg}
}
func (rr *MINFO) copy() RR {
return &MINFO{*rr.Hdr.copyHeader(), rr.Rmail, rr.Email}
}
func (rr *MR) copy() RR {
return &MR{*rr.Hdr.copyHeader(), rr.Mr}
}
func (rr *MX) copy() RR {
return &MX{*rr.Hdr.copyHeader(), rr.Preference, rr.Mx}
}
func (rr *NAPTR) copy() RR {
return &NAPTR{*rr.Hdr.copyHeader(), rr.Order, rr.Preference, rr.Flags, rr.Service, rr.Regexp, rr.Replacement}
}
func (rr *NID) copy() RR {
return &NID{*rr.Hdr.copyHeader(), rr.Preference, rr.NodeID}
}
func (rr *NIMLOC) copy() RR {
return &NIMLOC{*rr.Hdr.copyHeader(), rr.Locator}
}
func (rr *NINFO) copy() RR {
ZSData := make([]string, len(rr.ZSData))
copy(ZSData, rr.ZSData)
return &NINFO{*rr.Hdr.copyHeader(), ZSData}
}
func (rr *NS) copy() RR {
return &NS{*rr.Hdr.copyHeader(), rr.Ns}
}
func (rr *NSAPPTR) copy() RR {
return &NSAPPTR{*rr.Hdr.copyHeader(), rr.Ptr}
}
func (rr *NSEC) copy() RR {
TypeBitMap := make([]uint16, len(rr.TypeBitMap))
copy(TypeBitMap, rr.TypeBitMap)
return &NSEC{*rr.Hdr.copyHeader(), rr.NextDomain, TypeBitMap}
}
func (rr *NSEC3) copy() RR {
TypeBitMap := make([]uint16, len(rr.TypeBitMap))
copy(TypeBitMap, rr.TypeBitMap)
return &NSEC3{*rr.Hdr.copyHeader(), rr.Hash, rr.Flags, rr.Iterations, rr.SaltLength, rr.Salt, rr.HashLength, rr.NextDomain, TypeBitMap}
}
func (rr *NSEC3PARAM) copy() RR {
return &NSEC3PARAM{*rr.Hdr.copyHeader(), rr.Hash, rr.Flags, rr.Iterations, rr.SaltLength, rr.Salt}
}
func (rr *OPENPGPKEY) copy() RR {
return &OPENPGPKEY{*rr.Hdr.copyHeader(), rr.PublicKey}
}
func (rr *OPT) copy() RR {
Option := make([]EDNS0, len(rr.Option))
copy(Option, rr.Option)
return &OPT{*rr.Hdr.copyHeader(), Option}
}
func (rr *PTR) copy() RR {
return &PTR{*rr.Hdr.copyHeader(), rr.Ptr}
}
func (rr *PX) copy() RR {
return &PX{*rr.Hdr.copyHeader(), rr.Preference, rr.Map822, rr.Mapx400}
}
func (rr *RFC3597) copy() RR {
return &RFC3597{*rr.Hdr.copyHeader(), rr.Rdata}
}
func (rr *RKEY) copy() RR {
return &RKEY{*rr.Hdr.copyHeader(), rr.Flags, rr.Protocol, rr.Algorithm, rr.PublicKey}
}
func (rr *RP) copy() RR {
return &RP{*rr.Hdr.copyHeader(), rr.Mbox, rr.Txt}
}
func (rr *RRSIG) copy() RR {
return &RRSIG{*rr.Hdr.copyHeader(), rr.TypeCovered, rr.Algorithm, rr.Labels, rr.OrigTtl, rr.Expiration, rr.Inception, rr.KeyTag, rr.SignerName, rr.Signature}
}
func (rr *RT) copy() RR {
return &RT{*rr.Hdr.copyHeader(), rr.Preference, rr.Host}
}
func (rr *SOA) copy() RR {
return &SOA{*rr.Hdr.copyHeader(), rr.Ns, rr.Mbox, rr.Serial, rr.Refresh, rr.Retry, rr.Expire, rr.Minttl}
}
func (rr *SPF) copy() RR {
Txt := make([]string, len(rr.Txt))
copy(Txt, rr.Txt)
return &SPF{*rr.Hdr.copyHeader(), Txt}
}
func (rr *SRV) copy() RR {
return &SRV{*rr.Hdr.copyHeader(), rr.Priority, rr.Weight, rr.Port, rr.Target}
}
func (rr *SSHFP) copy() RR {
return &SSHFP{*rr.Hdr.copyHeader(), rr.Algorithm, rr.Type, rr.FingerPrint}
}
func (rr *TA) copy() RR {
return &TA{*rr.Hdr.copyHeader(), rr.KeyTag, rr.Algorithm, rr.DigestType, rr.Digest}
}
func (rr *TALINK) copy() RR {
return &TALINK{*rr.Hdr.copyHeader(), rr.PreviousName, rr.NextName}
}
func (rr *TKEY) copy() RR {
return &TKEY{*rr.Hdr.copyHeader(), rr.Algorithm, rr.Inception, rr.Expiration, rr.Mode, rr.Error, rr.KeySize, rr.Key, rr.OtherLen, rr.OtherData}
}
func (rr *TLSA) copy() RR {
return &TLSA{*rr.Hdr.copyHeader(), rr.Usage, rr.Selector, rr.MatchingType, rr.Certificate}
}
func (rr *TSIG) copy() RR {
return &TSIG{*rr.Hdr.copyHeader(), rr.Algorithm, rr.TimeSigned, rr.Fudge, rr.MACSize, rr.MAC, rr.OrigId, rr.Error, rr.OtherLen, rr.OtherData}
}
func (rr *TXT) copy() RR {
Txt := make([]string, len(rr.Txt))
copy(Txt, rr.Txt)
return &TXT{*rr.Hdr.copyHeader(), Txt}
}
func (rr *UID) copy() RR {
return &UID{*rr.Hdr.copyHeader(), rr.Uid}
}
func (rr *UINFO) copy() RR {
return &UINFO{*rr.Hdr.copyHeader(), rr.Uinfo}
}
func (rr *URI) copy() RR {
return &URI{*rr.Hdr.copyHeader(), rr.Priority, rr.Weight, rr.Target}
}
func (rr *WKS) copy() RR {
BitMap := make([]uint16, len(rr.BitMap))
copy(BitMap, rr.BitMap)
return &WKS{*rr.Hdr.copyHeader(), copyIP(rr.Address), rr.Protocol, BitMap}
}
func (rr *X25) copy() RR {
return &X25{*rr.Hdr.copyHeader(), rr.PSDNAddress}
}