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Diffstat (limited to 'src/pkg/net/dnsmsg.go')
-rw-r--r--src/pkg/net/dnsmsg.go234
1 files changed, 117 insertions, 117 deletions
diff --git a/src/pkg/net/dnsmsg.go b/src/pkg/net/dnsmsg.go
index 509189639..630dbd1e9 100644
--- a/src/pkg/net/dnsmsg.go
+++ b/src/pkg/net/dnsmsg.go
@@ -18,8 +18,8 @@
// A few of the structure elements have string tags to aid the
// generic pack/unpack routines.
//
-// TODO(rsc) There are enough names defined in this file that they're all
-// prefixed with _DNS_. Perhaps put this in its own package later.
+// TODO(rsc): There are enough names defined in this file that they're all
+// prefixed with dns. Perhaps put this in its own package later.
package net
@@ -33,55 +33,55 @@ import (
// Wire constants.
const (
- // valid _DNS_RR_Header.Rrtype and _DNS_Question.qtype
- _DNS_TypeA = 1
- _DNS_TypeNS = 2
- _DNS_TypeMD = 3
- _DNS_TypeMF = 4
- _DNS_TypeCNAME = 5
- _DNS_TypeSOA = 6
- _DNS_TypeMB = 7
- _DNS_TypeMG = 8
- _DNS_TypeMR = 9
- _DNS_TypeNULL = 10
- _DNS_TypeWKS = 11
- _DNS_TypePTR = 12
- _DNS_TypeHINFO = 13
- _DNS_TypeMINFO = 14
- _DNS_TypeMX = 15
- _DNS_TypeTXT = 16
-
- // valid _DNS_Question.qtype only
- _DNS_TypeAXFR = 252
- _DNS_TypeMAILB = 253
- _DNS_TypeMAILA = 254
- _DNS_TypeALL = 255
-
- // valid _DNS_Question.qclass
- _DNS_ClassINET = 1
- _DNS_ClassCSNET = 2
- _DNS_ClassCHAOS = 3
- _DNS_ClassHESIOD = 4
- _DNS_ClassANY = 255
-
- // _DNS_Msg.rcode
- _DNS_RcodeSuccess = 0
- _DNS_RcodeFormatError = 1
- _DNS_RcodeServerFailure = 2
- _DNS_RcodeNameError = 3
- _DNS_RcodeNotImplemented = 4
- _DNS_RcodeRefused = 5
+ // valid dnsRR_Header.Rrtype and dnsQuestion.qtype
+ dnsTypeA = 1
+ dnsTypeNS = 2
+ dnsTypeMD = 3
+ dnsTypeMF = 4
+ dnsTypeCNAME = 5
+ dnsTypeSOA = 6
+ dnsTypeMB = 7
+ dnsTypeMG = 8
+ dnsTypeMR = 9
+ dnsTypeNULL = 10
+ dnsTypeWKS = 11
+ dnsTypePTR = 12
+ dnsTypeHINFO = 13
+ dnsTypeMINFO = 14
+ dnsTypeMX = 15
+ dnsTypeTXT = 16
+
+ // valid dnsQuestion.qtype only
+ dnsTypeAXFR = 252
+ dnsTypeMAILB = 253
+ dnsTypeMAILA = 254
+ dnsTypeALL = 255
+
+ // valid dnsQuestion.qclass
+ dnsClassINET = 1
+ dnsClassCSNET = 2
+ dnsClassCHAOS = 3
+ dnsClassHESIOD = 4
+ dnsClassANY = 255
+
+ // dnsMsg.rcode
+ dnsRcodeSuccess = 0
+ dnsRcodeFormatError = 1
+ dnsRcodeServerFailure = 2
+ dnsRcodeNameError = 3
+ dnsRcodeNotImplemented = 4
+ dnsRcodeRefused = 5
)
// The wire format for the DNS packet header.
-type __DNS_Header struct {
+type dnsHeader struct {
Id uint16
Bits uint16
Qdcount, Ancount, Nscount, Arcount uint16
}
const (
- // __DNS_Header.Bits
+ // dnsHeader.Bits
_QR = 1 << 15 // query/response (response=1)
_AA = 1 << 10 // authoritative
_TC = 1 << 9 // truncated
@@ -90,7 +90,7 @@ const (
)
// DNS queries.
-type _DNS_Question struct {
+type dnsQuestion struct {
Name string "domain-name" // "domain-name" specifies encoding; see packers below
Qtype uint16
Qclass uint16
@@ -99,7 +99,7 @@ type _DNS_Question struct {
// DNS responses (resource records).
// There are many types of messages,
// but they all share the same header.
-type _DNS_RR_Header struct {
+type dnsRR_Header struct {
Name string "domain-name"
Rrtype uint16
Class uint16
@@ -107,103 +107,103 @@ type _DNS_RR_Header struct {
Rdlength uint16 // length of data after header
}
-func (h *_DNS_RR_Header) Header() *_DNS_RR_Header {
+func (h *dnsRR_Header) Header() *dnsRR_Header {
return h
}
-type _DNS_RR interface {
- Header() *_DNS_RR_Header
+type dnsRR interface {
+ Header() *dnsRR_Header
}
// Specific DNS RR formats for each query type.
-type _DNS_RR_CNAME struct {
- Hdr _DNS_RR_Header
+type dnsRR_CNAME struct {
+ Hdr dnsRR_Header
Cname string "domain-name"
}
-func (rr *_DNS_RR_CNAME) Header() *_DNS_RR_Header {
+func (rr *dnsRR_CNAME) Header() *dnsRR_Header {
return &rr.Hdr
}
-type _DNS_RR_HINFO struct {
- Hdr _DNS_RR_Header
+type dnsRR_HINFO struct {
+ Hdr dnsRR_Header
Cpu string
Os string
}
-func (rr *_DNS_RR_HINFO) Header() *_DNS_RR_Header {
+func (rr *dnsRR_HINFO) Header() *dnsRR_Header {
return &rr.Hdr
}
-type _DNS_RR_MB struct {
- Hdr _DNS_RR_Header
+type dnsRR_MB struct {
+ Hdr dnsRR_Header
Mb string "domain-name"
}
-func (rr *_DNS_RR_MB) Header() *_DNS_RR_Header {
+func (rr *dnsRR_MB) Header() *dnsRR_Header {
return &rr.Hdr
}
-type _DNS_RR_MG struct {
- Hdr _DNS_RR_Header
+type dnsRR_MG struct {
+ Hdr dnsRR_Header
Mg string "domain-name"
}
-func (rr *_DNS_RR_MG) Header() *_DNS_RR_Header {
+func (rr *dnsRR_MG) Header() *dnsRR_Header {
return &rr.Hdr
}
-type _DNS_RR_MINFO struct {
- Hdr _DNS_RR_Header
+type dnsRR_MINFO struct {
+ Hdr dnsRR_Header
Rmail string "domain-name"
Email string "domain-name"
}
-func (rr *_DNS_RR_MINFO) Header() *_DNS_RR_Header {
+func (rr *dnsRR_MINFO) Header() *dnsRR_Header {
return &rr.Hdr
}
-type _DNS_RR_MR struct {
- Hdr _DNS_RR_Header
+type dnsRR_MR struct {
+ Hdr dnsRR_Header
Mr string "domain-name"
}
-func (rr *_DNS_RR_MR) Header() *_DNS_RR_Header {
+func (rr *dnsRR_MR) Header() *dnsRR_Header {
return &rr.Hdr
}
-type _DNS_RR_MX struct {
- Hdr _DNS_RR_Header
+type dnsRR_MX struct {
+ Hdr dnsRR_Header
Pref uint16
Mx string "domain-name"
}
-func (rr *_DNS_RR_MX) Header() *_DNS_RR_Header {
+func (rr *dnsRR_MX) Header() *dnsRR_Header {
return &rr.Hdr
}
-type _DNS_RR_NS struct {
- Hdr _DNS_RR_Header
+type dnsRR_NS struct {
+ Hdr dnsRR_Header
Ns string "domain-name"
}
-func (rr *_DNS_RR_NS) Header() *_DNS_RR_Header {
+func (rr *dnsRR_NS) Header() *dnsRR_Header {
return &rr.Hdr
}
-type _DNS_RR_PTR struct {
- Hdr _DNS_RR_Header
+type dnsRR_PTR struct {
+ Hdr dnsRR_Header
Ptr string "domain-name"
}
-func (rr *_DNS_RR_PTR) Header() *_DNS_RR_Header {
+func (rr *dnsRR_PTR) Header() *dnsRR_Header {
return &rr.Hdr
}
-type _DNS_RR_SOA struct {
- Hdr _DNS_RR_Header
+type dnsRR_SOA struct {
+ Hdr dnsRR_Header
Ns string "domain-name"
Mbox string "domain-name"
Serial uint32
@@ -213,25 +213,25 @@ type _DNS_RR_SOA struct {
Minttl uint32
}
-func (rr *_DNS_RR_SOA) Header() *_DNS_RR_Header {
+func (rr *dnsRR_SOA) Header() *dnsRR_Header {
return &rr.Hdr
}
-type _DNS_RR_TXT struct {
- Hdr _DNS_RR_Header
+type dnsRR_TXT struct {
+ Hdr dnsRR_Header
Txt string // not domain name
}
-func (rr *_DNS_RR_TXT) Header() *_DNS_RR_Header {
+func (rr *dnsRR_TXT) Header() *dnsRR_Header {
return &rr.Hdr
}
-type _DNS_RR_A struct {
- Hdr _DNS_RR_Header
+type dnsRR_A struct {
+ Hdr dnsRR_Header
A uint32 "ipv4"
}
-func (rr *_DNS_RR_A) Header() *_DNS_RR_Header { return &rr.Hdr }
+func (rr *dnsRR_A) Header() *dnsRR_Header { return &rr.Hdr }
// Packing and unpacking.
@@ -243,19 +243,19 @@ func (rr *_DNS_RR_A) Header() *_DNS_RR_Header { return &rr.Hdr }
// packing sequence.
// Map of constructors for each RR wire type.
-var rr_mk = map[int]func() _DNS_RR{
- _DNS_TypeCNAME: func() _DNS_RR { return new(_DNS_RR_CNAME) },
- _DNS_TypeHINFO: func() _DNS_RR { return new(_DNS_RR_HINFO) },
- _DNS_TypeMB: func() _DNS_RR { return new(_DNS_RR_MB) },
- _DNS_TypeMG: func() _DNS_RR { return new(_DNS_RR_MG) },
- _DNS_TypeMINFO: func() _DNS_RR { return new(_DNS_RR_MINFO) },
- _DNS_TypeMR: func() _DNS_RR { return new(_DNS_RR_MR) },
- _DNS_TypeMX: func() _DNS_RR { return new(_DNS_RR_MX) },
- _DNS_TypeNS: func() _DNS_RR { return new(_DNS_RR_NS) },
- _DNS_TypePTR: func() _DNS_RR { return new(_DNS_RR_PTR) },
- _DNS_TypeSOA: func() _DNS_RR { return new(_DNS_RR_SOA) },
- _DNS_TypeTXT: func() _DNS_RR { return new(_DNS_RR_TXT) },
- _DNS_TypeA: func() _DNS_RR { return new(_DNS_RR_A) },
+var rr_mk = map[int]func() dnsRR{
+ dnsTypeCNAME: func() dnsRR { return new(dnsRR_CNAME) },
+ dnsTypeHINFO: func() dnsRR { return new(dnsRR_HINFO) },
+ dnsTypeMB: func() dnsRR { return new(dnsRR_MB) },
+ dnsTypeMG: func() dnsRR { return new(dnsRR_MG) },
+ dnsTypeMINFO: func() dnsRR { return new(dnsRR_MINFO) },
+ dnsTypeMR: func() dnsRR { return new(dnsRR_MR) },
+ dnsTypeMX: func() dnsRR { return new(dnsRR_MX) },
+ dnsTypeNS: func() dnsRR { return new(dnsRR_NS) },
+ dnsTypePTR: func() dnsRR { return new(dnsRR_PTR) },
+ dnsTypeSOA: func() dnsRR { return new(dnsRR_SOA) },
+ dnsTypeTXT: func() dnsRR { return new(dnsRR_TXT) },
+ dnsTypeA: func() dnsRR { return new(dnsRR_A) },
}
// Pack a domain name s into msg[off:].
@@ -522,7 +522,7 @@ func printStructValue(val *reflect.StructValue) string {
func printStruct(any interface{}) string { return printStructValue(structValue(any)) }
// Resource record packer.
-func packRR(rr _DNS_RR, msg []byte, off int) (off2 int, ok bool) {
+func packRR(rr dnsRR, msg []byte, off int) (off2 int, ok bool) {
var off1 int
// pack twice, once to find end of header
// and again to find end of packet.
@@ -541,9 +541,9 @@ func packRR(rr _DNS_RR, msg []byte, off int) (off2 int, ok bool) {
}
// Resource record unpacker.
-func unpackRR(msg []byte, off int) (rr _DNS_RR, off1 int, ok bool) {
+func unpackRR(msg []byte, off int) (rr dnsRR, off1 int, ok bool) {
// unpack just the header, to find the rr type and length
- var h _DNS_RR_Header
+ var h dnsRR_Header
off0 := off
if off, ok = unpackStruct(&h, msg, off); !ok {
return nil, len(msg), false
@@ -568,7 +568,7 @@ func unpackRR(msg []byte, off int) (rr _DNS_RR, off1 int, ok bool) {
// A manually-unpacked version of (id, bits).
// This is in its own struct for easy printing.
-type __DNS_Msg_Top struct {
+type dnsMsgHdr struct {
id uint16
response bool
opcode int
@@ -579,19 +579,19 @@ type __DNS_Msg_Top struct {
rcode int
}
-type _DNS_Msg struct {
- __DNS_Msg_Top
- question []_DNS_Question
- answer []_DNS_RR
- ns []_DNS_RR
- extra []_DNS_RR
+type dnsMsg struct {
+ dnsMsgHdr
+ question []dnsQuestion
+ answer []dnsRR
+ ns []dnsRR
+ extra []dnsRR
}
-func (dns *_DNS_Msg) Pack() (msg []byte, ok bool) {
- var dh __DNS_Header
+func (dns *dnsMsg) Pack() (msg []byte, ok bool) {
+ var dh dnsHeader
- // Convert convenient _DNS_Msg into wire-like __DNS_Header.
+ // Convert convenient dnsMsg into wire-like dnsHeader.
dh.Id = dns.id
dh.Bits = uint16(dns.opcode)<<11 | uint16(dns.rcode)
if dns.recursion_available {
@@ -647,9 +647,9 @@ func (dns *_DNS_Msg) Pack() (msg []byte, ok bool) {
return msg[0:off], true
}
-func (dns *_DNS_Msg) Unpack(msg []byte) bool {
+func (dns *dnsMsg) Unpack(msg []byte) bool {
// Header.
- var dh __DNS_Header
+ var dh dnsHeader
off := 0
var ok bool
if off, ok = unpackStruct(&dh, msg, off); !ok {
@@ -665,10 +665,10 @@ func (dns *_DNS_Msg) Unpack(msg []byte) bool {
dns.rcode = int(dh.Bits & 0xF)
// Arrays.
- dns.question = make([]_DNS_Question, dh.Qdcount)
- dns.answer = make([]_DNS_RR, dh.Ancount)
- dns.ns = make([]_DNS_RR, dh.Nscount)
- dns.extra = make([]_DNS_RR, dh.Arcount)
+ dns.question = make([]dnsQuestion, dh.Qdcount)
+ dns.answer = make([]dnsRR, dh.Ancount)
+ dns.ns = make([]dnsRR, dh.Nscount)
+ dns.extra = make([]dnsRR, dh.Arcount)
for i := 0; i < len(dns.question); i++ {
off, ok = unpackStruct(&dns.question[i], msg, off)
@@ -691,8 +691,8 @@ func (dns *_DNS_Msg) Unpack(msg []byte) bool {
return true
}
-func (dns *_DNS_Msg) String() string {
- s := "DNS: " + printStruct(&dns.__DNS_Msg_Top) + "\n"
+func (dns *dnsMsg) String() string {
+ s := "DNS: " + printStruct(&dns.dnsMsgHdr) + "\n"
if len(dns.question) > 0 {
s += "-- Questions\n"
for i := 0; i < len(dns.question); i++ {
generated by cgit v1.2.3 (git 2.39.1) at 2025-06-03 02:52:41 +0000