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Parsing a signed miek.nl works

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This commit is contained in:
Miek Gieben 2011-12-16 11:20:17 +01:00
parent c387c41767
commit 28bc54e91a
1 changed files with 38 additions and 31 deletions
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69
zscan_rr.go
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@ -15,7 +15,7 @@ import (
func setRR(h RR_Header, c chan Lex) (RR, *ParseError) { func setRR(h RR_Header, c chan Lex) (RR, *ParseError) {
var r RR var r RR
e := new(ParseError) e := new(ParseError)
switch h.Rrtype { switch h.Rrtype {
case TypeA: case TypeA:
r, e = setA(h, c) r, e = setA(h, c)
@ -65,6 +65,14 @@ func setRR(h RR_Header, c chan Lex) (RR, *ParseError) {
if se := slurpRemainder(c); se != nil { if se := slurpRemainder(c); se != nil {
return nil, se return nil, se
} }
case TypeSSHFP:
r, e = setSSHFP(h, c)
if e != nil {
return nil, e
}
if se := slurpRemainder(c); se != nil {
return nil, se
}
// These types have a variable ending either chunks of txt or chunks/base64 or hex. // These types have a variable ending either chunks of txt or chunks/base64 or hex.
// They need to search for the end of the RR themselves, hence they look for the ending // They need to search for the end of the RR themselves, hence they look for the ending
// newline. Thus there is no need to slurp the remainder, because there is none. // newline. Thus there is no need to slurp the remainder, because there is none.
@ -101,7 +109,7 @@ func slurpRemainder(c chan Lex) *ParseError {
} }
// Ok // Ok
case _NEWLINE: case _NEWLINE:
// Ok // Ok
case _EOF: case _EOF:
// Ok // Ok
default: default:
@ -196,7 +204,7 @@ func setSOA(h RR_Header, c chan Lex) (RR, *ParseError) {
<-c // _BLANK <-c // _BLANK
var j int var j int
var e error var e error
for i := 0; i < 5; i++ { for i := 0; i < 5; i++ {
l = <-c l = <-c
if j, e = strconv.Atoi(l.token); e != nil { if j, e = strconv.Atoi(l.token); e != nil {
@ -205,16 +213,16 @@ func setSOA(h RR_Header, c chan Lex) (RR, *ParseError) {
switch i { switch i {
case 0: case 0:
rr.Serial = uint32(j) rr.Serial = uint32(j)
<-c // _BLANK <-c // _BLANK
case 1: case 1:
rr.Refresh = uint32(j) rr.Refresh = uint32(j)
<-c // _BLANK <-c // _BLANK
case 2: case 2:
rr.Retry = uint32(j) rr.Retry = uint32(j)
<-c // _BLANK <-c // _BLANK
case 3: case 3:
rr.Expire = uint32(j) rr.Expire = uint32(j)
<-c // _BLANK <-c // _BLANK
case 4: case 4:
rr.Minttl = uint32(j) rr.Minttl = uint32(j)
} }
@ -383,6 +391,29 @@ func setNSEC3(h RR_Header, c chan Lex) (RR, *ParseError) {
return rr, nil return rr, nil
} }
func setSSHFP(h RR_Header, c chan Lex) (RR, *ParseError) {
rr := new(RR_SSHFP)
rr.Hdr = h
l := <-c
if i, e := strconv.Atoi(l.token); e != nil {
return nil, &ParseError{"bad SSHFP", l}
} else {
rr.Algorithm = uint8(i)
}
<-c // _BLANK
l = <-c
if i, e := strconv.Atoi(l.token); e != nil {
return nil, &ParseError{"bad SSHFP", l}
} else {
rr.Type = uint8(i)
}
<-c // _BLANK
l = <-c
rr.FingerPrint = l.token
return rr, nil
}
func setDNSKEY(h RR_Header, c chan Lex) (RR, *ParseError) { func setDNSKEY(h RR_Header, c chan Lex) (RR, *ParseError) {
rr := new(RR_DNSKEY) rr := new(RR_DNSKEY)
rr.Hdr = h rr.Hdr = h
@ -567,28 +598,4 @@ func setCNAME(h RR_Header, c chan Lex) (RR, *ParseError) {
} }
func setSSHFP(h RR_Header, c chan Lex) (RR, *ParseError) {
rr := new(RR_CNAME)
rr.Hdr = h
var (
i int
e os.Error
)
rdf := fields(data[mark:p], 3)
rr := new(RR_SSHFP)
rr.Hdr = hdr
rr.Hdr.Rrtype = TypeSSHFP
if i, e = strconv.Atoi(rdf[0]); e != nil {
zp.Err <- &ParseError{Error: "bad SSHFP", name: rdf[0], line: l}
return
}
rr.Algorithm = uint8(i)
if i, e = strconv.Atoi(rdf[1]); e != nil {
zp.Err <- &ParseError{Error: "bad SSHFP", name: rdf[1], line: l}
return
}
rr.Type = uint8(i)
rr.FingerPrint = rdf[2]
zp.RR <- rr
}
*/ */