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Generate programmatically per-type code, including .len() 

This process probably fixes a bug in NSAPPTR.len(), after a similar one was
found in HINFO.len().

This should also make it easier to make changes to these functions, and
check their correctness.

Generate the code by running "go generate".
This commit is contained in:
Filippo Valsorda 2015-10-07 04:33:08 +01:00
parent 691455cf79
commit d4a4e089d0
7 changed files with 923 additions and 405 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
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() {

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)

9
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 {
@ -58,11 +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}
}

375
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 +235,16 @@ 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) copy() RR { return &ANY{*rr.Hdr.copyHeader()} }
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) copy() RR { return &CNAME{*rr.Hdr.copyHeader(), sprintName(rr.Target)} }
func (rr *CNAME) String() string { return rr.Hdr.String() + rr.Target }
type HINFO struct {
Hdr RR_Header
@ -255,33 +252,27 @@ 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) 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) 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 }
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) copy() RR { return &MG{*rr.Hdr.copyHeader(), rr.Mg} }
func (rr *MG) String() string { return rr.Hdr.String() + sprintName(rr.Mg) }
type MINFO struct {
Hdr RR_Header
@ -289,27 +280,18 @@ 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) 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) copy() RR { return &MR{*rr.Hdr.copyHeader(), rr.Mr} }
func (rr *MR) String() string {
return rr.Hdr.String() + sprintName(rr.Mr)
@ -320,9 +302,7 @@ 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) copy() RR { return &MF{*rr.Hdr.copyHeader(), rr.Mf} }
func (rr *MF) String() string {
return rr.Hdr.String() + sprintName(rr.Mf)
@ -333,9 +313,7 @@ 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) copy() RR { return &MD{*rr.Hdr.copyHeader(), rr.Md} }
func (rr *MD) String() string {
return rr.Hdr.String() + sprintName(rr.Md)
@ -347,9 +325,7 @@ 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) copy() RR { return &MX{*rr.Hdr.copyHeader(), rr.Preference, rr.Mx} }
func (rr *MX) String() string {
return rr.Hdr.String() + strconv.Itoa(int(rr.Preference)) + " " + sprintName(rr.Mx)
@ -361,9 +337,7 @@ 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) copy() RR { return &AFSDB{*rr.Hdr.copyHeader(), rr.Subtype, rr.Hostname} }
func (rr *AFSDB) String() string {
return rr.Hdr.String() + strconv.Itoa(int(rr.Subtype)) + " " + sprintName(rr.Hostname)
@ -374,9 +348,7 @@ 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) copy() RR { return &X25{*rr.Hdr.copyHeader(), rr.PSDNAddress} }
func (rr *X25) String() string {
return rr.Hdr.String() + rr.PSDNAddress
@ -388,9 +360,7 @@ 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) copy() RR { return &RT{*rr.Hdr.copyHeader(), rr.Preference, rr.Host} }
func (rr *RT) String() string {
return rr.Hdr.String() + strconv.Itoa(int(rr.Preference)) + " " + sprintName(rr.Host)
@ -401,9 +371,7 @@ 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) copy() RR { return &NS{*rr.Hdr.copyHeader(), rr.Ns} }
func (rr *NS) String() string {
return rr.Hdr.String() + sprintName(rr.Ns)
@ -414,9 +382,7 @@ 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) copy() RR { return &PTR{*rr.Hdr.copyHeader(), rr.Ptr} }
func (rr *PTR) String() string {
return rr.Hdr.String() + sprintName(rr.Ptr)
@ -428,9 +394,7 @@ 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) copy() RR { return &RP{*rr.Hdr.copyHeader(), rr.Mbox, rr.Txt} }
func (rr *RP) String() string {
return rr.Hdr.String() + rr.Mbox + " " + sprintTxt([]string{rr.Txt})
@ -447,7 +411,6 @@ 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}
}
@ -461,18 +424,11 @@ 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)
@ -621,20 +577,11 @@ 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)
@ -643,14 +590,6 @@ func (rr *SPF) copy() RR {
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
@ -659,8 +598,6 @@ 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}
}
@ -682,7 +619,6 @@ 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}
}
@ -697,11 +633,6 @@ 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
@ -711,7 +642,6 @@ 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}
}
@ -733,20 +663,13 @@ 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) copy() RR { return &DNAME{*rr.Hdr.copyHeader(), rr.Target} }
func (rr *DNAME) String() string {
return rr.Hdr.String() + sprintName(rr.Target)
@ -757,9 +680,7 @@ 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) copy() RR { return &A{*rr.Hdr.copyHeader(), copyIP(rr.A)} }
func (rr *A) String() string {
if rr.A == nil {
@ -773,9 +694,7 @@ 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) copy() RR { return &AAAA{*rr.Hdr.copyHeader(), copyIP(rr.AAAA)} }
func (rr *AAAA) String() string {
if rr.AAAA == nil {
@ -791,12 +710,10 @@ 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) 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 +722,7 @@ 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) copy() RR { return &GPOS{*rr.Hdr.copyHeader(), rr.Longitude, rr.Latitude, rr.Altitude} }
func (rr *GPOS) String() string {
return rr.Hdr.String() + rr.Longitude + " " + rr.Latitude + " " + rr.Altitude
}
@ -825,8 +738,6 @@ 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}
}
@ -914,7 +825,6 @@ 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}
}
@ -933,18 +843,12 @@ 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)
@ -988,8 +892,6 @@ 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}
}
@ -1007,9 +909,7 @@ 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) 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)) +
@ -1024,8 +924,6 @@ 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}
}
@ -1043,9 +941,7 @@ 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) copy() RR { return &TALINK{*rr.Hdr.copyHeader(), rr.PreviousName, rr.NextName} }
func (rr *TALINK) String() string {
return rr.Hdr.String() +
@ -1059,8 +955,6 @@ 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}
}
@ -1085,7 +979,6 @@ 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}
}
@ -1143,10 +1036,6 @@ 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}
}
@ -1166,8 +1055,6 @@ 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}
}
@ -1184,10 +1071,8 @@ 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) copy() RR { return &NSAPPTR{*rr.Hdr.copyHeader(), rr.Ptr} }
func (rr *NSAPPTR) String() string { return rr.Hdr.String() + sprintName(rr.Ptr) }
type NSEC3 struct {
Hdr RR_Header
@ -1201,7 +1086,6 @@ 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)
@ -1243,8 +1127,6 @@ 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}
}
@ -1271,7 +1153,6 @@ 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}
}
@ -1281,20 +1162,13 @@ func (rr *TKEY) String() string {
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) copy() RR { return &RFC3597{*rr.Hdr.copyHeader(), rr.Rdata} }
func (rr *RFC3597) String() string {
// Let's call it a hack
@ -1321,9 +1195,7 @@ 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) copy() RR { return &URI{*rr.Hdr.copyHeader(), rr.Weight, rr.Priority, 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 +1206,8 @@ 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) copy() RR { return &DHCID{*rr.Hdr.copyHeader(), rr.Digest} }
func (rr *DHCID) String() string { return rr.Hdr.String() + rr.Digest }
type TLSA struct {
Hdr RR_Header
@ -1347,9 +1217,6 @@ 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}
}
@ -1372,7 +1239,6 @@ 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)
@ -1390,22 +1256,11 @@ 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)
@ -1414,14 +1269,6 @@ func (rr *NINFO) copy() RR {
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"`
@ -1429,8 +1276,10 @@ 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) len() int {
// TODO: this is missing something...
return rr.Hdr.len() + net.IPv4len + 1
}
func (rr *WKS) copy() RR {
cp := make([]uint16, len(rr.BitMap), cap(rr.BitMap))
@ -1457,9 +1306,7 @@ 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) copy() RR { return &NID{*rr.Hdr.copyHeader(), rr.Preference, rr.NodeID} }
func (rr *NID) String() string {
s := rr.Hdr.String() + strconv.Itoa(int(rr.Preference))
@ -1474,9 +1321,7 @@ 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) copy() RR { return &L32{*rr.Hdr.copyHeader(), rr.Preference, copyIP(rr.Locator32)} }
func (rr *L32) String() string {
if rr.Locator32 == nil {
@ -1492,9 +1337,7 @@ 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) copy() RR { return &L64{*rr.Hdr.copyHeader(), rr.Preference, rr.Locator64} }
func (rr *L64) String() string {
s := rr.Hdr.String() + strconv.Itoa(int(rr.Preference))
@ -1509,9 +1352,7 @@ 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) copy() RR { return &LP{*rr.Hdr.copyHeader(), rr.Preference, rr.Fqdn} }
func (rr *LP) String() string {
return rr.Hdr.String() + strconv.Itoa(int(rr.Preference)) + " " + sprintName(rr.Fqdn)
@ -1522,20 +1363,16 @@ 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) copy() RR { return &EUI48{*rr.Hdr.copyHeader(), rr.Address} }
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) copy() RR { return &EUI64{*rr.Hdr.copyHeader(), rr.Address} }
func (rr *EUI64) String() string { return rr.Hdr.String() + euiToString(rr.Address, 64) }
type CAA struct {
Hdr RR_Header
@ -1544,9 +1381,7 @@ 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) copy() RR { return &CAA{*rr.Hdr.copyHeader(), rr.Flag, rr.Tag, rr.Value} }
func (rr *CAA) String() string {
return rr.Hdr.String() + strconv.Itoa(int(rr.Flag)) + " " + rr.Tag + " " + sprintTxtOctet(rr.Value)
}
@ -1556,62 +1391,48 @@ 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) copy() RR { return &UID{*rr.Hdr.copyHeader(), rr.Uid} }
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) copy() RR { return &GID{*rr.Hdr.copyHeader(), rr.Gid} }
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) copy() RR { return &UINFO{*rr.Hdr.copyHeader(), rr.Uinfo} }
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) copy() RR { return &EID{*rr.Hdr.copyHeader(), rr.Endpoint} }
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) copy() RR { return &NIMLOC{*rr.Hdr.copyHeader(), rr.Locator} }
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) copy() RR { return &OPENPGPKEY{*rr.Hdr.copyHeader(), 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 +1490,3 @@ 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) },
}

632
types_auto.go Normal file
View File

@ -0,0 +1,632 @@
// *** 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
}

226
types_generate.go Normal file
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@ -0,0 +1,226 @@
//+build ignore
package main
import (
"bytes"
"fmt"
"go/format"
"log"
"os"
"strings"
"text/template"
"golang.org/x/tools/go/loader"
"golang.org/x/tools/go/types"
)
var skip = map[string]struct{}{
"PrivateRR": struct{}{},
}
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}}
`))
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() {
var conf loader.Config
conf.Import(".")
prog, err := conf.Load()
fatalIfErr(err)
scope := prog.Package(".").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 _, ok := skip[name]; ok {
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 _, ok := skip[o.Name()]; ok {
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")
}
res, err := format.Source(b.Bytes())
fatalIfErr(err)
f, err := os.Create("types_auto.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)