1946 lines
43 KiB
Go
1946 lines
43 KiB
Go
package dns
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import (
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"encoding/base64"
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"net"
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"strconv"
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"strings"
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)
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// Parse the rdata of each rrtype.
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// All data from the channel c is either zString or zBlank.
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// After the rdata there may come a zBlank and then a zNewline
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// or immediately a zNewline. If this is not the case we flag
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// an *ParseError: garbage after rdata.
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func setRR(h RR_Header, c *zlexer, o, f string) (RR, *ParseError) {
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var rr RR
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if newFn, ok := TypeToRR[h.Rrtype]; ok && canParseAsRR(h.Rrtype) {
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rr = newFn()
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*rr.Header() = h
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} else {
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rr = &RFC3597{Hdr: h}
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}
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err := rr.parse(c, o, f)
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if err != nil {
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return nil, err
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}
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return rr, nil
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}
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// canParseAsRR returns true if the record type can be parsed as a
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// concrete RR. It blacklists certain record types that must be parsed
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// according to RFC 3597 because they lack a presentation format.
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func canParseAsRR(rrtype uint16) bool {
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switch rrtype {
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case TypeANY, TypeNULL, TypeOPT, TypeTSIG:
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return false
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default:
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return true
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}
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}
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// A remainder of the rdata with embedded spaces, return the parsed string (sans the spaces)
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// or an error
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func endingToString(c *zlexer, errstr, f string) (string, *ParseError) {
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var s string
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l, _ := c.Next() // zString
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for l.value != zNewline && l.value != zEOF {
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if l.err {
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return s, &ParseError{f, errstr, l}
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}
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switch l.value {
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case zString:
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s += l.token
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case zBlank: // Ok
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default:
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return "", &ParseError{f, errstr, l}
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}
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l, _ = c.Next()
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}
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return s, nil
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}
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// A remainder of the rdata with embedded spaces, split on unquoted whitespace
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// and return the parsed string slice or an error
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func endingToTxtSlice(c *zlexer, errstr, f string) ([]string, *ParseError) {
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// Get the remaining data until we see a zNewline
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l, _ := c.Next()
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if l.err {
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return nil, &ParseError{f, errstr, l}
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}
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// Build the slice
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s := make([]string, 0)
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quote := false
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empty := false
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for l.value != zNewline && l.value != zEOF {
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if l.err {
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return nil, &ParseError{f, errstr, l}
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}
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switch l.value {
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case zString:
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empty = false
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if len(l.token) > 255 {
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// split up tokens that are larger than 255 into 255-chunks
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sx := []string{}
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p, i := 0, 255
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for {
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if i <= len(l.token) {
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sx = append(sx, l.token[p:i])
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} else {
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sx = append(sx, l.token[p:])
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break
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}
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p, i = p+255, i+255
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}
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s = append(s, sx...)
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break
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}
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s = append(s, l.token)
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case zBlank:
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if quote {
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// zBlank can only be seen in between txt parts.
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return nil, &ParseError{f, errstr, l}
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}
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case zQuote:
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if empty && quote {
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s = append(s, "")
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}
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quote = !quote
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empty = true
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default:
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return nil, &ParseError{f, errstr, l}
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}
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l, _ = c.Next()
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}
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if quote {
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return nil, &ParseError{f, errstr, l}
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}
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return s, nil
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}
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func (rr *A) parse(c *zlexer, o, f string) *ParseError {
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l, _ := c.Next()
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if len(l.token) == 0 { // dynamic update rr.
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return slurpRemainder(c, f)
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}
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rr.A = net.ParseIP(l.token)
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// IPv4 addresses cannot include ":".
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// We do this rather than use net.IP's To4() because
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// To4() treats IPv4-mapped IPv6 addresses as being
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// IPv4.
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isIPv4 := !strings.Contains(l.token, ":")
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if rr.A == nil || !isIPv4 || l.err {
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return &ParseError{f, "bad A A", l}
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}
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return slurpRemainder(c, f)
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}
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func (rr *AAAA) parse(c *zlexer, o, f string) *ParseError {
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l, _ := c.Next()
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if len(l.token) == 0 { // dynamic update rr.
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return slurpRemainder(c, f)
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}
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rr.AAAA = net.ParseIP(l.token)
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// IPv6 addresses must include ":", and IPv4
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// addresses cannot include ":".
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isIPv6 := strings.Contains(l.token, ":")
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if rr.AAAA == nil || !isIPv6 || l.err {
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return &ParseError{f, "bad AAAA AAAA", l}
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}
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return slurpRemainder(c, f)
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}
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func (rr *NS) parse(c *zlexer, o, f string) *ParseError {
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l, _ := c.Next()
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rr.Ns = l.token
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if len(l.token) == 0 { // dynamic update rr.
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return slurpRemainder(c, f)
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}
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name, nameOk := toAbsoluteName(l.token, o)
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if l.err || !nameOk {
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return &ParseError{f, "bad NS Ns", l}
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}
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rr.Ns = name
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return slurpRemainder(c, f)
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}
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func (rr *PTR) parse(c *zlexer, o, f string) *ParseError {
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l, _ := c.Next()
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rr.Ptr = l.token
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if len(l.token) == 0 { // dynamic update rr.
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return slurpRemainder(c, f)
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}
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name, nameOk := toAbsoluteName(l.token, o)
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if l.err || !nameOk {
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return &ParseError{f, "bad PTR Ptr", l}
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}
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rr.Ptr = name
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return slurpRemainder(c, f)
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}
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func (rr *NSAPPTR) parse(c *zlexer, o, f string) *ParseError {
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l, _ := c.Next()
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rr.Ptr = l.token
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if len(l.token) == 0 { // dynamic update rr.
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return slurpRemainder(c, f)
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}
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name, nameOk := toAbsoluteName(l.token, o)
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if l.err || !nameOk {
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return &ParseError{f, "bad NSAP-PTR Ptr", l}
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}
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rr.Ptr = name
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return slurpRemainder(c, f)
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}
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func (rr *RP) parse(c *zlexer, o, f string) *ParseError {
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l, _ := c.Next()
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rr.Mbox = l.token
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if len(l.token) == 0 { // dynamic update rr.
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return slurpRemainder(c, f)
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}
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mbox, mboxOk := toAbsoluteName(l.token, o)
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if l.err || !mboxOk {
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return &ParseError{f, "bad RP Mbox", l}
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}
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rr.Mbox = mbox
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c.Next() // zBlank
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l, _ = c.Next()
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rr.Txt = l.token
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txt, txtOk := toAbsoluteName(l.token, o)
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if l.err || !txtOk {
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return &ParseError{f, "bad RP Txt", l}
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}
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rr.Txt = txt
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return slurpRemainder(c, f)
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}
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func (rr *MR) parse(c *zlexer, o, f string) *ParseError {
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l, _ := c.Next()
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rr.Mr = l.token
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if len(l.token) == 0 { // dynamic update rr.
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return slurpRemainder(c, f)
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}
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name, nameOk := toAbsoluteName(l.token, o)
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if l.err || !nameOk {
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return &ParseError{f, "bad MR Mr", l}
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}
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rr.Mr = name
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return slurpRemainder(c, f)
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}
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func (rr *MB) parse(c *zlexer, o, f string) *ParseError {
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l, _ := c.Next()
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rr.Mb = l.token
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if len(l.token) == 0 { // dynamic update rr.
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return slurpRemainder(c, f)
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}
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name, nameOk := toAbsoluteName(l.token, o)
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if l.err || !nameOk {
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return &ParseError{f, "bad MB Mb", l}
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}
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rr.Mb = name
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return slurpRemainder(c, f)
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}
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func (rr *MG) parse(c *zlexer, o, f string) *ParseError {
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l, _ := c.Next()
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rr.Mg = l.token
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if len(l.token) == 0 { // dynamic update rr.
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return slurpRemainder(c, f)
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}
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name, nameOk := toAbsoluteName(l.token, o)
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if l.err || !nameOk {
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return &ParseError{f, "bad MG Mg", l}
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}
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rr.Mg = name
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return slurpRemainder(c, f)
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}
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func (rr *HINFO) parse(c *zlexer, o, f string) *ParseError {
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chunks, e := endingToTxtSlice(c, "bad HINFO Fields", f)
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if e != nil {
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return e
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}
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if ln := len(chunks); ln == 0 {
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return nil
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} else if ln == 1 {
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// Can we split it?
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if out := strings.Fields(chunks[0]); len(out) > 1 {
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chunks = out
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} else {
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chunks = append(chunks, "")
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}
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}
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rr.Cpu = chunks[0]
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rr.Os = strings.Join(chunks[1:], " ")
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return nil
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}
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func (rr *MINFO) parse(c *zlexer, o, f string) *ParseError {
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l, _ := c.Next()
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rr.Rmail = l.token
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if len(l.token) == 0 { // dynamic update rr.
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return slurpRemainder(c, f)
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}
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rmail, rmailOk := toAbsoluteName(l.token, o)
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if l.err || !rmailOk {
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return &ParseError{f, "bad MINFO Rmail", l}
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}
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rr.Rmail = rmail
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c.Next() // zBlank
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l, _ = c.Next()
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rr.Email = l.token
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email, emailOk := toAbsoluteName(l.token, o)
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if l.err || !emailOk {
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return &ParseError{f, "bad MINFO Email", l}
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}
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rr.Email = email
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return slurpRemainder(c, f)
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}
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func (rr *MF) parse(c *zlexer, o, f string) *ParseError {
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l, _ := c.Next()
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rr.Mf = l.token
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if len(l.token) == 0 { // dynamic update rr.
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return slurpRemainder(c, f)
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}
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name, nameOk := toAbsoluteName(l.token, o)
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if l.err || !nameOk {
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return &ParseError{f, "bad MF Mf", l}
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}
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rr.Mf = name
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return slurpRemainder(c, f)
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}
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func (rr *MD) parse(c *zlexer, o, f string) *ParseError {
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l, _ := c.Next()
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rr.Md = l.token
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if len(l.token) == 0 { // dynamic update rr.
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return slurpRemainder(c, f)
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}
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name, nameOk := toAbsoluteName(l.token, o)
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if l.err || !nameOk {
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return &ParseError{f, "bad MD Md", l}
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}
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rr.Md = name
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return slurpRemainder(c, f)
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}
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func (rr *MX) parse(c *zlexer, o, f string) *ParseError {
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l, _ := c.Next()
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if len(l.token) == 0 { // dynamic update rr.
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return slurpRemainder(c, f)
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}
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i, e := strconv.ParseUint(l.token, 10, 16)
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if e != nil || l.err {
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return &ParseError{f, "bad MX Pref", l}
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}
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rr.Preference = uint16(i)
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c.Next() // zBlank
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l, _ = c.Next() // zString
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rr.Mx = l.token
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name, nameOk := toAbsoluteName(l.token, o)
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if l.err || !nameOk {
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return &ParseError{f, "bad MX Mx", l}
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}
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rr.Mx = name
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return slurpRemainder(c, f)
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}
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func (rr *RT) parse(c *zlexer, o, f string) *ParseError {
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l, _ := c.Next()
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if len(l.token) == 0 { // dynamic update rr.
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return slurpRemainder(c, f)
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}
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i, e := strconv.ParseUint(l.token, 10, 16)
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if e != nil {
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return &ParseError{f, "bad RT Preference", l}
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}
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rr.Preference = uint16(i)
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c.Next() // zBlank
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l, _ = c.Next() // zString
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rr.Host = l.token
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name, nameOk := toAbsoluteName(l.token, o)
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if l.err || !nameOk {
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return &ParseError{f, "bad RT Host", l}
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}
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rr.Host = name
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return slurpRemainder(c, f)
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}
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func (rr *AFSDB) parse(c *zlexer, o, f string) *ParseError {
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l, _ := c.Next()
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if len(l.token) == 0 { // dynamic update rr.
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return slurpRemainder(c, f)
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}
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i, e := strconv.ParseUint(l.token, 10, 16)
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if e != nil || l.err {
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return &ParseError{f, "bad AFSDB Subtype", l}
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}
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rr.Subtype = uint16(i)
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c.Next() // zBlank
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l, _ = c.Next() // zString
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rr.Hostname = l.token
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name, nameOk := toAbsoluteName(l.token, o)
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if l.err || !nameOk {
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return &ParseError{f, "bad AFSDB Hostname", l}
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}
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rr.Hostname = name
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return slurpRemainder(c, f)
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}
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func (rr *X25) parse(c *zlexer, o, f string) *ParseError {
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l, _ := c.Next()
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if len(l.token) == 0 { // dynamic update rr.
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return slurpRemainder(c, f)
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}
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if l.err {
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return &ParseError{f, "bad X25 PSDNAddress", l}
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}
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rr.PSDNAddress = l.token
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return slurpRemainder(c, f)
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}
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func (rr *KX) parse(c *zlexer, o, f string) *ParseError {
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l, _ := c.Next()
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if len(l.token) == 0 { // dynamic update rr.
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return slurpRemainder(c, f)
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}
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i, e := strconv.ParseUint(l.token, 10, 16)
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if e != nil || l.err {
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return &ParseError{f, "bad KX Pref", l}
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}
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rr.Preference = uint16(i)
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c.Next() // zBlank
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l, _ = c.Next() // zString
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rr.Exchanger = l.token
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name, nameOk := toAbsoluteName(l.token, o)
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if l.err || !nameOk {
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return &ParseError{f, "bad KX Exchanger", l}
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}
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rr.Exchanger = name
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return slurpRemainder(c, f)
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}
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func (rr *CNAME) parse(c *zlexer, o, f string) *ParseError {
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l, _ := c.Next()
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rr.Target = l.token
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if len(l.token) == 0 { // dynamic update rr.
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return slurpRemainder(c, f)
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}
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name, nameOk := toAbsoluteName(l.token, o)
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if l.err || !nameOk {
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return &ParseError{f, "bad CNAME Target", l}
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}
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rr.Target = name
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return slurpRemainder(c, f)
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}
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func (rr *DNAME) parse(c *zlexer, o, f string) *ParseError {
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l, _ := c.Next()
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rr.Target = l.token
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if len(l.token) == 0 { // dynamic update rr.
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return slurpRemainder(c, f)
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}
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name, nameOk := toAbsoluteName(l.token, o)
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if l.err || !nameOk {
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return &ParseError{f, "bad DNAME Target", l}
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}
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rr.Target = name
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return slurpRemainder(c, f)
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}
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func (rr *SOA) parse(c *zlexer, o, f string) *ParseError {
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l, _ := c.Next()
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rr.Ns = l.token
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if len(l.token) == 0 { // dynamic update rr.
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return slurpRemainder(c, f)
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}
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ns, nsOk := toAbsoluteName(l.token, o)
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if l.err || !nsOk {
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return &ParseError{f, "bad SOA Ns", l}
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}
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rr.Ns = ns
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c.Next() // zBlank
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l, _ = c.Next()
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rr.Mbox = l.token
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mbox, mboxOk := toAbsoluteName(l.token, o)
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if l.err || !mboxOk {
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return &ParseError{f, "bad SOA Mbox", l}
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}
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rr.Mbox = mbox
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c.Next() // zBlank
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var (
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v uint32
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ok bool
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)
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for i := 0; i < 5; i++ {
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|
l, _ = c.Next()
|
|
if l.err {
|
|
return &ParseError{f, "bad SOA zone parameter", l}
|
|
}
|
|
if j, e := strconv.ParseUint(l.token, 10, 32); e != nil {
|
|
if i == 0 {
|
|
// Serial must be a number
|
|
return &ParseError{f, "bad SOA zone parameter", l}
|
|
}
|
|
// We allow other fields to be unitful duration strings
|
|
if v, ok = stringToTTL(l.token); !ok {
|
|
return &ParseError{f, "bad SOA zone parameter", l}
|
|
|
|
}
|
|
} else {
|
|
v = uint32(j)
|
|
}
|
|
switch i {
|
|
case 0:
|
|
rr.Serial = v
|
|
c.Next() // zBlank
|
|
case 1:
|
|
rr.Refresh = v
|
|
c.Next() // zBlank
|
|
case 2:
|
|
rr.Retry = v
|
|
c.Next() // zBlank
|
|
case 3:
|
|
rr.Expire = v
|
|
c.Next() // zBlank
|
|
case 4:
|
|
rr.Minttl = v
|
|
}
|
|
}
|
|
return slurpRemainder(c, f)
|
|
}
|
|
|
|
func (rr *SRV) parse(c *zlexer, o, f string) *ParseError {
|
|
l, _ := c.Next()
|
|
if len(l.token) == 0 { // dynamic update rr.
|
|
return slurpRemainder(c, f)
|
|
}
|
|
|
|
i, e := strconv.ParseUint(l.token, 10, 16)
|
|
if e != nil || l.err {
|
|
return &ParseError{f, "bad SRV Priority", l}
|
|
}
|
|
rr.Priority = uint16(i)
|
|
|
|
c.Next() // zBlank
|
|
l, _ = c.Next() // zString
|
|
i, e = strconv.ParseUint(l.token, 10, 16)
|
|
if e != nil || l.err {
|
|
return &ParseError{f, "bad SRV Weight", l}
|
|
}
|
|
rr.Weight = uint16(i)
|
|
|
|
c.Next() // zBlank
|
|
l, _ = c.Next() // zString
|
|
i, e = strconv.ParseUint(l.token, 10, 16)
|
|
if e != nil || l.err {
|
|
return &ParseError{f, "bad SRV Port", l}
|
|
}
|
|
rr.Port = uint16(i)
|
|
|
|
c.Next() // zBlank
|
|
l, _ = c.Next() // zString
|
|
rr.Target = l.token
|
|
|
|
name, nameOk := toAbsoluteName(l.token, o)
|
|
if l.err || !nameOk {
|
|
return &ParseError{f, "bad SRV Target", l}
|
|
}
|
|
rr.Target = name
|
|
return slurpRemainder(c, f)
|
|
}
|
|
|
|
func (rr *NAPTR) parse(c *zlexer, o, f string) *ParseError {
|
|
l, _ := c.Next()
|
|
if len(l.token) == 0 { // dynamic update rr.
|
|
return slurpRemainder(c, f)
|
|
}
|
|
|
|
i, e := strconv.ParseUint(l.token, 10, 16)
|
|
if e != nil || l.err {
|
|
return &ParseError{f, "bad NAPTR Order", l}
|
|
}
|
|
rr.Order = uint16(i)
|
|
|
|
c.Next() // zBlank
|
|
l, _ = c.Next() // zString
|
|
i, e = strconv.ParseUint(l.token, 10, 16)
|
|
if e != nil || l.err {
|
|
return &ParseError{f, "bad NAPTR Preference", l}
|
|
}
|
|
rr.Preference = uint16(i)
|
|
|
|
// Flags
|
|
c.Next() // zBlank
|
|
l, _ = c.Next() // _QUOTE
|
|
if l.value != zQuote {
|
|
return &ParseError{f, "bad NAPTR Flags", l}
|
|
}
|
|
l, _ = c.Next() // Either String or Quote
|
|
if l.value == zString {
|
|
rr.Flags = l.token
|
|
l, _ = c.Next() // _QUOTE
|
|
if l.value != zQuote {
|
|
return &ParseError{f, "bad NAPTR Flags", l}
|
|
}
|
|
} else if l.value == zQuote {
|
|
rr.Flags = ""
|
|
} else {
|
|
return &ParseError{f, "bad NAPTR Flags", l}
|
|
}
|
|
|
|
// Service
|
|
c.Next() // zBlank
|
|
l, _ = c.Next() // _QUOTE
|
|
if l.value != zQuote {
|
|
return &ParseError{f, "bad NAPTR Service", l}
|
|
}
|
|
l, _ = c.Next() // Either String or Quote
|
|
if l.value == zString {
|
|
rr.Service = l.token
|
|
l, _ = c.Next() // _QUOTE
|
|
if l.value != zQuote {
|
|
return &ParseError{f, "bad NAPTR Service", l}
|
|
}
|
|
} else if l.value == zQuote {
|
|
rr.Service = ""
|
|
} else {
|
|
return &ParseError{f, "bad NAPTR Service", l}
|
|
}
|
|
|
|
// Regexp
|
|
c.Next() // zBlank
|
|
l, _ = c.Next() // _QUOTE
|
|
if l.value != zQuote {
|
|
return &ParseError{f, "bad NAPTR Regexp", l}
|
|
}
|
|
l, _ = c.Next() // Either String or Quote
|
|
if l.value == zString {
|
|
rr.Regexp = l.token
|
|
l, _ = c.Next() // _QUOTE
|
|
if l.value != zQuote {
|
|
return &ParseError{f, "bad NAPTR Regexp", l}
|
|
}
|
|
} else if l.value == zQuote {
|
|
rr.Regexp = ""
|
|
} else {
|
|
return &ParseError{f, "bad NAPTR Regexp", l}
|
|
}
|
|
|
|
// After quote no space??
|
|
c.Next() // zBlank
|
|
l, _ = c.Next() // zString
|
|
rr.Replacement = l.token
|
|
|
|
name, nameOk := toAbsoluteName(l.token, o)
|
|
if l.err || !nameOk {
|
|
return &ParseError{f, "bad NAPTR Replacement", l}
|
|
}
|
|
rr.Replacement = name
|
|
return slurpRemainder(c, f)
|
|
}
|
|
|
|
func (rr *TALINK) parse(c *zlexer, o, f string) *ParseError {
|
|
l, _ := c.Next()
|
|
rr.PreviousName = l.token
|
|
if len(l.token) == 0 { // dynamic update rr.
|
|
return slurpRemainder(c, f)
|
|
}
|
|
|
|
previousName, previousNameOk := toAbsoluteName(l.token, o)
|
|
if l.err || !previousNameOk {
|
|
return &ParseError{f, "bad TALINK PreviousName", l}
|
|
}
|
|
rr.PreviousName = previousName
|
|
|
|
c.Next() // zBlank
|
|
l, _ = c.Next()
|
|
rr.NextName = l.token
|
|
|
|
nextName, nextNameOk := toAbsoluteName(l.token, o)
|
|
if l.err || !nextNameOk {
|
|
return &ParseError{f, "bad TALINK NextName", l}
|
|
}
|
|
rr.NextName = nextName
|
|
|
|
return slurpRemainder(c, f)
|
|
}
|
|
|
|
func (rr *LOC) parse(c *zlexer, o, f string) *ParseError {
|
|
// Non zero defaults for LOC record, see RFC 1876, Section 3.
|
|
rr.HorizPre = 165 // 10000
|
|
rr.VertPre = 162 // 10
|
|
rr.Size = 18 // 1
|
|
ok := false
|
|
|
|
// North
|
|
l, _ := c.Next()
|
|
if len(l.token) == 0 { // dynamic update rr.
|
|
return nil
|
|
}
|
|
i, e := strconv.ParseUint(l.token, 10, 32)
|
|
if e != nil || l.err {
|
|
return &ParseError{f, "bad LOC Latitude", l}
|
|
}
|
|
rr.Latitude = 1000 * 60 * 60 * uint32(i)
|
|
|
|
c.Next() // zBlank
|
|
// Either number, 'N' or 'S'
|
|
l, _ = c.Next()
|
|
if rr.Latitude, ok = locCheckNorth(l.token, rr.Latitude); ok {
|
|
goto East
|
|
}
|
|
i, e = strconv.ParseUint(l.token, 10, 32)
|
|
if e != nil || l.err {
|
|
return &ParseError{f, "bad LOC Latitude minutes", l}
|
|
}
|
|
rr.Latitude += 1000 * 60 * uint32(i)
|
|
|
|
c.Next() // zBlank
|
|
l, _ = c.Next()
|
|
if i, e := strconv.ParseFloat(l.token, 32); e != nil || l.err {
|
|
return &ParseError{f, "bad LOC Latitude seconds", l}
|
|
} else {
|
|
rr.Latitude += uint32(1000 * i)
|
|
}
|
|
c.Next() // zBlank
|
|
// Either number, 'N' or 'S'
|
|
l, _ = c.Next()
|
|
if rr.Latitude, ok = locCheckNorth(l.token, rr.Latitude); ok {
|
|
goto East
|
|
}
|
|
// If still alive, flag an error
|
|
return &ParseError{f, "bad LOC Latitude North/South", l}
|
|
|
|
East:
|
|
// East
|
|
c.Next() // zBlank
|
|
l, _ = c.Next()
|
|
if i, e := strconv.ParseUint(l.token, 10, 32); e != nil || l.err {
|
|
return &ParseError{f, "bad LOC Longitude", l}
|
|
} else {
|
|
rr.Longitude = 1000 * 60 * 60 * uint32(i)
|
|
}
|
|
c.Next() // zBlank
|
|
// Either number, 'E' or 'W'
|
|
l, _ = c.Next()
|
|
if rr.Longitude, ok = locCheckEast(l.token, rr.Longitude); ok {
|
|
goto Altitude
|
|
}
|
|
if i, e := strconv.ParseUint(l.token, 10, 32); e != nil || l.err {
|
|
return &ParseError{f, "bad LOC Longitude minutes", l}
|
|
} else {
|
|
rr.Longitude += 1000 * 60 * uint32(i)
|
|
}
|
|
c.Next() // zBlank
|
|
l, _ = c.Next()
|
|
if i, e := strconv.ParseFloat(l.token, 32); e != nil || l.err {
|
|
return &ParseError{f, "bad LOC Longitude seconds", l}
|
|
} else {
|
|
rr.Longitude += uint32(1000 * i)
|
|
}
|
|
c.Next() // zBlank
|
|
// Either number, 'E' or 'W'
|
|
l, _ = c.Next()
|
|
if rr.Longitude, ok = locCheckEast(l.token, rr.Longitude); ok {
|
|
goto Altitude
|
|
}
|
|
// If still alive, flag an error
|
|
return &ParseError{f, "bad LOC Longitude East/West", l}
|
|
|
|
Altitude:
|
|
c.Next() // zBlank
|
|
l, _ = c.Next()
|
|
if len(l.token) == 0 || l.err {
|
|
return &ParseError{f, "bad LOC Altitude", l}
|
|
}
|
|
if l.token[len(l.token)-1] == 'M' || l.token[len(l.token)-1] == 'm' {
|
|
l.token = l.token[0 : len(l.token)-1]
|
|
}
|
|
if i, e := strconv.ParseFloat(l.token, 32); e != nil {
|
|
return &ParseError{f, "bad LOC Altitude", l}
|
|
} else {
|
|
rr.Altitude = uint32(i*100.0 + 10000000.0 + 0.5)
|
|
}
|
|
|
|
// And now optionally the other values
|
|
l, _ = c.Next()
|
|
count := 0
|
|
for l.value != zNewline && l.value != zEOF {
|
|
switch l.value {
|
|
case zString:
|
|
switch count {
|
|
case 0: // Size
|
|
e, m, ok := stringToCm(l.token)
|
|
if !ok {
|
|
return &ParseError{f, "bad LOC Size", l}
|
|
}
|
|
rr.Size = e&0x0f | m<<4&0xf0
|
|
case 1: // HorizPre
|
|
e, m, ok := stringToCm(l.token)
|
|
if !ok {
|
|
return &ParseError{f, "bad LOC HorizPre", l}
|
|
}
|
|
rr.HorizPre = e&0x0f | m<<4&0xf0
|
|
case 2: // VertPre
|
|
e, m, ok := stringToCm(l.token)
|
|
if !ok {
|
|
return &ParseError{f, "bad LOC VertPre", l}
|
|
}
|
|
rr.VertPre = e&0x0f | m<<4&0xf0
|
|
}
|
|
count++
|
|
case zBlank:
|
|
// Ok
|
|
default:
|
|
return &ParseError{f, "bad LOC Size, HorizPre or VertPre", l}
|
|
}
|
|
l, _ = c.Next()
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (rr *HIP) parse(c *zlexer, o, f string) *ParseError {
|
|
// HitLength is not represented
|
|
l, _ := c.Next()
|
|
if len(l.token) == 0 { // dynamic update rr.
|
|
return nil
|
|
}
|
|
|
|
i, e := strconv.ParseUint(l.token, 10, 8)
|
|
if e != nil || l.err {
|
|
return &ParseError{f, "bad HIP PublicKeyAlgorithm", l}
|
|
}
|
|
rr.PublicKeyAlgorithm = uint8(i)
|
|
|
|
c.Next() // zBlank
|
|
l, _ = c.Next() // zString
|
|
if len(l.token) == 0 || l.err {
|
|
return &ParseError{f, "bad HIP Hit", l}
|
|
}
|
|
rr.Hit = l.token // This can not contain spaces, see RFC 5205 Section 6.
|
|
rr.HitLength = uint8(len(rr.Hit)) / 2
|
|
|
|
c.Next() // zBlank
|
|
l, _ = c.Next() // zString
|
|
if len(l.token) == 0 || l.err {
|
|
return &ParseError{f, "bad HIP PublicKey", l}
|
|
}
|
|
rr.PublicKey = l.token // This cannot contain spaces
|
|
rr.PublicKeyLength = uint16(base64.StdEncoding.DecodedLen(len(rr.PublicKey)))
|
|
|
|
// RendezvousServers (if any)
|
|
l, _ = c.Next()
|
|
var xs []string
|
|
for l.value != zNewline && l.value != zEOF {
|
|
switch l.value {
|
|
case zString:
|
|
name, nameOk := toAbsoluteName(l.token, o)
|
|
if l.err || !nameOk {
|
|
return &ParseError{f, "bad HIP RendezvousServers", l}
|
|
}
|
|
xs = append(xs, name)
|
|
case zBlank:
|
|
// Ok
|
|
default:
|
|
return &ParseError{f, "bad HIP RendezvousServers", l}
|
|
}
|
|
l, _ = c.Next()
|
|
}
|
|
|
|
rr.RendezvousServers = xs
|
|
return nil
|
|
}
|
|
|
|
func (rr *CERT) parse(c *zlexer, o, f string) *ParseError {
|
|
l, _ := c.Next()
|
|
if len(l.token) == 0 { // dynamic update rr.
|
|
return nil
|
|
}
|
|
|
|
if v, ok := StringToCertType[l.token]; ok {
|
|
rr.Type = v
|
|
} else if i, e := strconv.ParseUint(l.token, 10, 16); e != nil {
|
|
return &ParseError{f, "bad CERT Type", l}
|
|
} else {
|
|
rr.Type = uint16(i)
|
|
}
|
|
c.Next() // zBlank
|
|
l, _ = c.Next() // zString
|
|
i, e := strconv.ParseUint(l.token, 10, 16)
|
|
if e != nil || l.err {
|
|
return &ParseError{f, "bad CERT KeyTag", l}
|
|
}
|
|
rr.KeyTag = uint16(i)
|
|
c.Next() // zBlank
|
|
l, _ = c.Next() // zString
|
|
if v, ok := StringToAlgorithm[l.token]; ok {
|
|
rr.Algorithm = v
|
|
} else if i, e := strconv.ParseUint(l.token, 10, 8); e != nil {
|
|
return &ParseError{f, "bad CERT Algorithm", l}
|
|
} else {
|
|
rr.Algorithm = uint8(i)
|
|
}
|
|
s, e1 := endingToString(c, "bad CERT Certificate", f)
|
|
if e1 != nil {
|
|
return e1
|
|
}
|
|
rr.Certificate = s
|
|
return nil
|
|
}
|
|
|
|
func (rr *OPENPGPKEY) parse(c *zlexer, o, f string) *ParseError {
|
|
s, e := endingToString(c, "bad OPENPGPKEY PublicKey", f)
|
|
if e != nil {
|
|
return e
|
|
}
|
|
rr.PublicKey = s
|
|
return nil
|
|
}
|
|
|
|
func (rr *CSYNC) parse(c *zlexer, o, f string) *ParseError {
|
|
l, _ := c.Next()
|
|
if len(l.token) == 0 { // dynamic update rr.
|
|
return nil
|
|
}
|
|
j, e := strconv.ParseUint(l.token, 10, 32)
|
|
if e != nil {
|
|
// Serial must be a number
|
|
return &ParseError{f, "bad CSYNC serial", l}
|
|
}
|
|
rr.Serial = uint32(j)
|
|
|
|
c.Next() // zBlank
|
|
|
|
l, _ = c.Next()
|
|
j, e = strconv.ParseUint(l.token, 10, 16)
|
|
if e != nil {
|
|
// Serial must be a number
|
|
return &ParseError{f, "bad CSYNC flags", l}
|
|
}
|
|
rr.Flags = uint16(j)
|
|
|
|
rr.TypeBitMap = make([]uint16, 0)
|
|
var (
|
|
k uint16
|
|
ok bool
|
|
)
|
|
l, _ = c.Next()
|
|
for l.value != zNewline && l.value != zEOF {
|
|
switch l.value {
|
|
case zBlank:
|
|
// Ok
|
|
case zString:
|
|
tokenUpper := strings.ToUpper(l.token)
|
|
if k, ok = StringToType[tokenUpper]; !ok {
|
|
if k, ok = typeToInt(l.token); !ok {
|
|
return &ParseError{f, "bad CSYNC TypeBitMap", l}
|
|
}
|
|
}
|
|
rr.TypeBitMap = append(rr.TypeBitMap, k)
|
|
default:
|
|
return &ParseError{f, "bad CSYNC TypeBitMap", l}
|
|
}
|
|
l, _ = c.Next()
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (rr *SIG) parse(c *zlexer, o, f string) *ParseError {
|
|
return rr.RRSIG.parse(c, o, f)
|
|
}
|
|
|
|
func (rr *RRSIG) parse(c *zlexer, o, f string) *ParseError {
|
|
l, _ := c.Next()
|
|
if len(l.token) == 0 { // dynamic update rr.
|
|
return nil
|
|
}
|
|
|
|
tokenUpper := strings.ToUpper(l.token)
|
|
if t, ok := StringToType[tokenUpper]; !ok {
|
|
if strings.HasPrefix(tokenUpper, "TYPE") {
|
|
t, ok = typeToInt(l.token)
|
|
if !ok {
|
|
return &ParseError{f, "bad RRSIG Typecovered", l}
|
|
}
|
|
rr.TypeCovered = t
|
|
} else {
|
|
return &ParseError{f, "bad RRSIG Typecovered", l}
|
|
}
|
|
} else {
|
|
rr.TypeCovered = t
|
|
}
|
|
|
|
c.Next() // zBlank
|
|
l, _ = c.Next()
|
|
i, err := strconv.ParseUint(l.token, 10, 8)
|
|
if err != nil || l.err {
|
|
return &ParseError{f, "bad RRSIG Algorithm", l}
|
|
}
|
|
rr.Algorithm = uint8(i)
|
|
|
|
c.Next() // zBlank
|
|
l, _ = c.Next()
|
|
i, err = strconv.ParseUint(l.token, 10, 8)
|
|
if err != nil || l.err {
|
|
return &ParseError{f, "bad RRSIG Labels", l}
|
|
}
|
|
rr.Labels = uint8(i)
|
|
|
|
c.Next() // zBlank
|
|
l, _ = c.Next()
|
|
i, err = strconv.ParseUint(l.token, 10, 32)
|
|
if err != nil || l.err {
|
|
return &ParseError{f, "bad RRSIG OrigTtl", l}
|
|
}
|
|
rr.OrigTtl = uint32(i)
|
|
|
|
c.Next() // zBlank
|
|
l, _ = c.Next()
|
|
if i, err := StringToTime(l.token); err != nil {
|
|
// Try to see if all numeric and use it as epoch
|
|
if i, err := strconv.ParseInt(l.token, 10, 64); err == nil {
|
|
// TODO(miek): error out on > MAX_UINT32, same below
|
|
rr.Expiration = uint32(i)
|
|
} else {
|
|
return &ParseError{f, "bad RRSIG Expiration", l}
|
|
}
|
|
} else {
|
|
rr.Expiration = i
|
|
}
|
|
|
|
c.Next() // zBlank
|
|
l, _ = c.Next()
|
|
if i, err := StringToTime(l.token); err != nil {
|
|
if i, err := strconv.ParseInt(l.token, 10, 64); err == nil {
|
|
rr.Inception = uint32(i)
|
|
} else {
|
|
return &ParseError{f, "bad RRSIG Inception", l}
|
|
}
|
|
} else {
|
|
rr.Inception = i
|
|
}
|
|
|
|
c.Next() // zBlank
|
|
l, _ = c.Next()
|
|
i, err = strconv.ParseUint(l.token, 10, 16)
|
|
if err != nil || l.err {
|
|
return &ParseError{f, "bad RRSIG KeyTag", l}
|
|
}
|
|
rr.KeyTag = uint16(i)
|
|
|
|
c.Next() // zBlank
|
|
l, _ = c.Next()
|
|
rr.SignerName = l.token
|
|
name, nameOk := toAbsoluteName(l.token, o)
|
|
if l.err || !nameOk {
|
|
return &ParseError{f, "bad RRSIG SignerName", l}
|
|
}
|
|
rr.SignerName = name
|
|
|
|
s, e := endingToString(c, "bad RRSIG Signature", f)
|
|
if e != nil {
|
|
return e
|
|
}
|
|
rr.Signature = s
|
|
|
|
return nil
|
|
}
|
|
|
|
func (rr *NSEC) parse(c *zlexer, o, f string) *ParseError {
|
|
l, _ := c.Next()
|
|
rr.NextDomain = l.token
|
|
if len(l.token) == 0 { // dynamic update rr.
|
|
return nil
|
|
}
|
|
|
|
name, nameOk := toAbsoluteName(l.token, o)
|
|
if l.err || !nameOk {
|
|
return &ParseError{f, "bad NSEC NextDomain", l}
|
|
}
|
|
rr.NextDomain = name
|
|
|
|
rr.TypeBitMap = make([]uint16, 0)
|
|
var (
|
|
k uint16
|
|
ok bool
|
|
)
|
|
l, _ = c.Next()
|
|
for l.value != zNewline && l.value != zEOF {
|
|
switch l.value {
|
|
case zBlank:
|
|
// Ok
|
|
case zString:
|
|
tokenUpper := strings.ToUpper(l.token)
|
|
if k, ok = StringToType[tokenUpper]; !ok {
|
|
if k, ok = typeToInt(l.token); !ok {
|
|
return &ParseError{f, "bad NSEC TypeBitMap", l}
|
|
}
|
|
}
|
|
rr.TypeBitMap = append(rr.TypeBitMap, k)
|
|
default:
|
|
return &ParseError{f, "bad NSEC TypeBitMap", l}
|
|
}
|
|
l, _ = c.Next()
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (rr *NSEC3) parse(c *zlexer, o, f string) *ParseError {
|
|
l, _ := c.Next()
|
|
if len(l.token) == 0 { // dynamic update rr.
|
|
return nil
|
|
}
|
|
|
|
i, e := strconv.ParseUint(l.token, 10, 8)
|
|
if e != nil || l.err {
|
|
return &ParseError{f, "bad NSEC3 Hash", l}
|
|
}
|
|
rr.Hash = uint8(i)
|
|
c.Next() // zBlank
|
|
l, _ = c.Next()
|
|
i, e = strconv.ParseUint(l.token, 10, 8)
|
|
if e != nil || l.err {
|
|
return &ParseError{f, "bad NSEC3 Flags", l}
|
|
}
|
|
rr.Flags = uint8(i)
|
|
c.Next() // zBlank
|
|
l, _ = c.Next()
|
|
i, e = strconv.ParseUint(l.token, 10, 16)
|
|
if e != nil || l.err {
|
|
return &ParseError{f, "bad NSEC3 Iterations", l}
|
|
}
|
|
rr.Iterations = uint16(i)
|
|
c.Next()
|
|
l, _ = c.Next()
|
|
if len(l.token) == 0 || l.err {
|
|
return &ParseError{f, "bad NSEC3 Salt", l}
|
|
}
|
|
if l.token != "-" {
|
|
rr.SaltLength = uint8(len(l.token)) / 2
|
|
rr.Salt = l.token
|
|
}
|
|
|
|
c.Next()
|
|
l, _ = c.Next()
|
|
if len(l.token) == 0 || l.err {
|
|
return &ParseError{f, "bad NSEC3 NextDomain", l}
|
|
}
|
|
rr.HashLength = 20 // Fix for NSEC3 (sha1 160 bits)
|
|
rr.NextDomain = l.token
|
|
|
|
rr.TypeBitMap = make([]uint16, 0)
|
|
var (
|
|
k uint16
|
|
ok bool
|
|
)
|
|
l, _ = c.Next()
|
|
for l.value != zNewline && l.value != zEOF {
|
|
switch l.value {
|
|
case zBlank:
|
|
// Ok
|
|
case zString:
|
|
tokenUpper := strings.ToUpper(l.token)
|
|
if k, ok = StringToType[tokenUpper]; !ok {
|
|
if k, ok = typeToInt(l.token); !ok {
|
|
return &ParseError{f, "bad NSEC3 TypeBitMap", l}
|
|
}
|
|
}
|
|
rr.TypeBitMap = append(rr.TypeBitMap, k)
|
|
default:
|
|
return &ParseError{f, "bad NSEC3 TypeBitMap", l}
|
|
}
|
|
l, _ = c.Next()
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (rr *NSEC3PARAM) parse(c *zlexer, o, f string) *ParseError {
|
|
l, _ := c.Next()
|
|
if len(l.token) == 0 { // dynamic update rr.
|
|
return slurpRemainder(c, f)
|
|
}
|
|
|
|
i, e := strconv.ParseUint(l.token, 10, 8)
|
|
if e != nil || l.err {
|
|
return &ParseError{f, "bad NSEC3PARAM Hash", l}
|
|
}
|
|
rr.Hash = uint8(i)
|
|
c.Next() // zBlank
|
|
l, _ = c.Next()
|
|
i, e = strconv.ParseUint(l.token, 10, 8)
|
|
if e != nil || l.err {
|
|
return &ParseError{f, "bad NSEC3PARAM Flags", l}
|
|
}
|
|
rr.Flags = uint8(i)
|
|
c.Next() // zBlank
|
|
l, _ = c.Next()
|
|
i, e = strconv.ParseUint(l.token, 10, 16)
|
|
if e != nil || l.err {
|
|
return &ParseError{f, "bad NSEC3PARAM Iterations", l}
|
|
}
|
|
rr.Iterations = uint16(i)
|
|
c.Next()
|
|
l, _ = c.Next()
|
|
if l.token != "-" {
|
|
rr.SaltLength = uint8(len(l.token))
|
|
rr.Salt = l.token
|
|
}
|
|
return slurpRemainder(c, f)
|
|
}
|
|
|
|
func (rr *EUI48) parse(c *zlexer, o, f string) *ParseError {
|
|
l, _ := c.Next()
|
|
if len(l.token) == 0 { // dynamic update rr.
|
|
return slurpRemainder(c, f)
|
|
}
|
|
|
|
if len(l.token) != 17 || l.err {
|
|
return &ParseError{f, "bad EUI48 Address", l}
|
|
}
|
|
addr := make([]byte, 12)
|
|
dash := 0
|
|
for i := 0; i < 10; i += 2 {
|
|
addr[i] = l.token[i+dash]
|
|
addr[i+1] = l.token[i+1+dash]
|
|
dash++
|
|
if l.token[i+1+dash] != '-' {
|
|
return &ParseError{f, "bad EUI48 Address", l}
|
|
}
|
|
}
|
|
addr[10] = l.token[15]
|
|
addr[11] = l.token[16]
|
|
|
|
i, e := strconv.ParseUint(string(addr), 16, 48)
|
|
if e != nil {
|
|
return &ParseError{f, "bad EUI48 Address", l}
|
|
}
|
|
rr.Address = i
|
|
return slurpRemainder(c, f)
|
|
}
|
|
|
|
func (rr *EUI64) parse(c *zlexer, o, f string) *ParseError {
|
|
l, _ := c.Next()
|
|
if len(l.token) == 0 { // dynamic update rr.
|
|
return slurpRemainder(c, f)
|
|
}
|
|
|
|
if len(l.token) != 23 || l.err {
|
|
return &ParseError{f, "bad EUI64 Address", l}
|
|
}
|
|
addr := make([]byte, 16)
|
|
dash := 0
|
|
for i := 0; i < 14; i += 2 {
|
|
addr[i] = l.token[i+dash]
|
|
addr[i+1] = l.token[i+1+dash]
|
|
dash++
|
|
if l.token[i+1+dash] != '-' {
|
|
return &ParseError{f, "bad EUI64 Address", l}
|
|
}
|
|
}
|
|
addr[14] = l.token[21]
|
|
addr[15] = l.token[22]
|
|
|
|
i, e := strconv.ParseUint(string(addr), 16, 64)
|
|
if e != nil {
|
|
return &ParseError{f, "bad EUI68 Address", l}
|
|
}
|
|
rr.Address = i
|
|
return slurpRemainder(c, f)
|
|
}
|
|
|
|
func (rr *SSHFP) parse(c *zlexer, o, f string) *ParseError {
|
|
l, _ := c.Next()
|
|
if len(l.token) == 0 { // dynamic update rr.
|
|
return nil
|
|
}
|
|
|
|
i, e := strconv.ParseUint(l.token, 10, 8)
|
|
if e != nil || l.err {
|
|
return &ParseError{f, "bad SSHFP Algorithm", l}
|
|
}
|
|
rr.Algorithm = uint8(i)
|
|
c.Next() // zBlank
|
|
l, _ = c.Next()
|
|
i, e = strconv.ParseUint(l.token, 10, 8)
|
|
if e != nil || l.err {
|
|
return &ParseError{f, "bad SSHFP Type", l}
|
|
}
|
|
rr.Type = uint8(i)
|
|
c.Next() // zBlank
|
|
s, e1 := endingToString(c, "bad SSHFP Fingerprint", f)
|
|
if e1 != nil {
|
|
return e1
|
|
}
|
|
rr.FingerPrint = s
|
|
return nil
|
|
}
|
|
|
|
func (rr *DNSKEY) parseDNSKEY(c *zlexer, o, f, typ string) *ParseError {
|
|
l, _ := c.Next()
|
|
if len(l.token) == 0 { // dynamic update rr.
|
|
return nil
|
|
}
|
|
|
|
i, e := strconv.ParseUint(l.token, 10, 16)
|
|
if e != nil || l.err {
|
|
return &ParseError{f, "bad " + typ + " Flags", l}
|
|
}
|
|
rr.Flags = uint16(i)
|
|
c.Next() // zBlank
|
|
l, _ = c.Next() // zString
|
|
i, e = strconv.ParseUint(l.token, 10, 8)
|
|
if e != nil || l.err {
|
|
return &ParseError{f, "bad " + typ + " Protocol", l}
|
|
}
|
|
rr.Protocol = uint8(i)
|
|
c.Next() // zBlank
|
|
l, _ = c.Next() // zString
|
|
i, e = strconv.ParseUint(l.token, 10, 8)
|
|
if e != nil || l.err {
|
|
return &ParseError{f, "bad " + typ + " Algorithm", l}
|
|
}
|
|
rr.Algorithm = uint8(i)
|
|
s, e1 := endingToString(c, "bad "+typ+" PublicKey", f)
|
|
if e1 != nil {
|
|
return e1
|
|
}
|
|
rr.PublicKey = s
|
|
return nil
|
|
}
|
|
|
|
func (rr *DNSKEY) parse(c *zlexer, o, f string) *ParseError {
|
|
return rr.parseDNSKEY(c, o, f, "DNSKEY")
|
|
}
|
|
|
|
func (rr *KEY) parse(c *zlexer, o, f string) *ParseError {
|
|
return rr.parseDNSKEY(c, o, f, "KEY")
|
|
}
|
|
|
|
func (rr *CDNSKEY) parse(c *zlexer, o, f string) *ParseError {
|
|
return rr.parseDNSKEY(c, o, f, "CDNSKEY")
|
|
}
|
|
|
|
func (rr *RKEY) parse(c *zlexer, o, f string) *ParseError {
|
|
l, _ := c.Next()
|
|
if len(l.token) == 0 { // dynamic update rr.
|
|
return nil
|
|
}
|
|
|
|
i, e := strconv.ParseUint(l.token, 10, 16)
|
|
if e != nil || l.err {
|
|
return &ParseError{f, "bad RKEY Flags", l}
|
|
}
|
|
rr.Flags = uint16(i)
|
|
c.Next() // zBlank
|
|
l, _ = c.Next() // zString
|
|
i, e = strconv.ParseUint(l.token, 10, 8)
|
|
if e != nil || l.err {
|
|
return &ParseError{f, "bad RKEY Protocol", l}
|
|
}
|
|
rr.Protocol = uint8(i)
|
|
c.Next() // zBlank
|
|
l, _ = c.Next() // zString
|
|
i, e = strconv.ParseUint(l.token, 10, 8)
|
|
if e != nil || l.err {
|
|
return &ParseError{f, "bad RKEY Algorithm", l}
|
|
}
|
|
rr.Algorithm = uint8(i)
|
|
s, e1 := endingToString(c, "bad RKEY PublicKey", f)
|
|
if e1 != nil {
|
|
return e1
|
|
}
|
|
rr.PublicKey = s
|
|
return nil
|
|
}
|
|
|
|
func (rr *EID) parse(c *zlexer, o, f string) *ParseError {
|
|
s, e := endingToString(c, "bad EID Endpoint", f)
|
|
if e != nil {
|
|
return e
|
|
}
|
|
rr.Endpoint = s
|
|
return nil
|
|
}
|
|
|
|
func (rr *NIMLOC) parse(c *zlexer, o, f string) *ParseError {
|
|
s, e := endingToString(c, "bad NIMLOC Locator", f)
|
|
if e != nil {
|
|
return e
|
|
}
|
|
rr.Locator = s
|
|
return nil
|
|
}
|
|
|
|
func (rr *GPOS) parse(c *zlexer, o, f string) *ParseError {
|
|
l, _ := c.Next()
|
|
if len(l.token) == 0 { // dynamic update rr.
|
|
return slurpRemainder(c, f)
|
|
}
|
|
|
|
_, e := strconv.ParseFloat(l.token, 64)
|
|
if e != nil || l.err {
|
|
return &ParseError{f, "bad GPOS Longitude", l}
|
|
}
|
|
rr.Longitude = l.token
|
|
c.Next() // zBlank
|
|
l, _ = c.Next()
|
|
_, e = strconv.ParseFloat(l.token, 64)
|
|
if e != nil || l.err {
|
|
return &ParseError{f, "bad GPOS Latitude", l}
|
|
}
|
|
rr.Latitude = l.token
|
|
c.Next() // zBlank
|
|
l, _ = c.Next()
|
|
_, e = strconv.ParseFloat(l.token, 64)
|
|
if e != nil || l.err {
|
|
return &ParseError{f, "bad GPOS Altitude", l}
|
|
}
|
|
rr.Altitude = l.token
|
|
return slurpRemainder(c, f)
|
|
}
|
|
|
|
func (rr *DS) parseDS(c *zlexer, o, f, typ string) *ParseError {
|
|
l, _ := c.Next()
|
|
if len(l.token) == 0 { // dynamic update rr.
|
|
return nil
|
|
}
|
|
|
|
i, e := strconv.ParseUint(l.token, 10, 16)
|
|
if e != nil || l.err {
|
|
return &ParseError{f, "bad " + typ + " KeyTag", l}
|
|
}
|
|
rr.KeyTag = uint16(i)
|
|
c.Next() // zBlank
|
|
l, _ = c.Next()
|
|
if i, e = strconv.ParseUint(l.token, 10, 8); e != nil {
|
|
tokenUpper := strings.ToUpper(l.token)
|
|
i, ok := StringToAlgorithm[tokenUpper]
|
|
if !ok || l.err {
|
|
return &ParseError{f, "bad " + typ + " Algorithm", l}
|
|
}
|
|
rr.Algorithm = i
|
|
} else {
|
|
rr.Algorithm = uint8(i)
|
|
}
|
|
c.Next() // zBlank
|
|
l, _ = c.Next()
|
|
i, e = strconv.ParseUint(l.token, 10, 8)
|
|
if e != nil || l.err {
|
|
return &ParseError{f, "bad " + typ + " DigestType", l}
|
|
}
|
|
rr.DigestType = uint8(i)
|
|
s, e1 := endingToString(c, "bad "+typ+" Digest", f)
|
|
if e1 != nil {
|
|
return e1
|
|
}
|
|
rr.Digest = s
|
|
return nil
|
|
}
|
|
|
|
func (rr *DS) parse(c *zlexer, o, f string) *ParseError {
|
|
return rr.parseDS(c, o, f, "DS")
|
|
}
|
|
|
|
func (rr *DLV) parse(c *zlexer, o, f string) *ParseError {
|
|
return rr.parseDS(c, o, f, "DLV")
|
|
}
|
|
|
|
func (rr *CDS) parse(c *zlexer, o, f string) *ParseError {
|
|
return rr.parseDS(c, o, f, "CDS")
|
|
}
|
|
|
|
func (rr *TA) parse(c *zlexer, o, f string) *ParseError {
|
|
l, _ := c.Next()
|
|
if len(l.token) == 0 { // dynamic update rr.
|
|
return nil
|
|
}
|
|
|
|
i, e := strconv.ParseUint(l.token, 10, 16)
|
|
if e != nil || l.err {
|
|
return &ParseError{f, "bad TA KeyTag", l}
|
|
}
|
|
rr.KeyTag = uint16(i)
|
|
c.Next() // zBlank
|
|
l, _ = c.Next()
|
|
if i, e := strconv.ParseUint(l.token, 10, 8); e != nil {
|
|
tokenUpper := strings.ToUpper(l.token)
|
|
i, ok := StringToAlgorithm[tokenUpper]
|
|
if !ok || l.err {
|
|
return &ParseError{f, "bad TA Algorithm", l}
|
|
}
|
|
rr.Algorithm = i
|
|
} else {
|
|
rr.Algorithm = uint8(i)
|
|
}
|
|
c.Next() // zBlank
|
|
l, _ = c.Next()
|
|
i, e = strconv.ParseUint(l.token, 10, 8)
|
|
if e != nil || l.err {
|
|
return &ParseError{f, "bad TA DigestType", l}
|
|
}
|
|
rr.DigestType = uint8(i)
|
|
s, err := endingToString(c, "bad TA Digest", f)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
rr.Digest = s
|
|
return nil
|
|
}
|
|
|
|
func (rr *TLSA) parse(c *zlexer, o, f string) *ParseError {
|
|
l, _ := c.Next()
|
|
if len(l.token) == 0 { // dynamic update rr.
|
|
return nil
|
|
}
|
|
|
|
i, e := strconv.ParseUint(l.token, 10, 8)
|
|
if e != nil || l.err {
|
|
return &ParseError{f, "bad TLSA Usage", l}
|
|
}
|
|
rr.Usage = uint8(i)
|
|
c.Next() // zBlank
|
|
l, _ = c.Next()
|
|
i, e = strconv.ParseUint(l.token, 10, 8)
|
|
if e != nil || l.err {
|
|
return &ParseError{f, "bad TLSA Selector", l}
|
|
}
|
|
rr.Selector = uint8(i)
|
|
c.Next() // zBlank
|
|
l, _ = c.Next()
|
|
i, e = strconv.ParseUint(l.token, 10, 8)
|
|
if e != nil || l.err {
|
|
return &ParseError{f, "bad TLSA MatchingType", l}
|
|
}
|
|
rr.MatchingType = uint8(i)
|
|
// So this needs be e2 (i.e. different than e), because...??t
|
|
s, e2 := endingToString(c, "bad TLSA Certificate", f)
|
|
if e2 != nil {
|
|
return e2
|
|
}
|
|
rr.Certificate = s
|
|
return nil
|
|
}
|
|
|
|
func (rr *SMIMEA) parse(c *zlexer, o, f string) *ParseError {
|
|
l, _ := c.Next()
|
|
if len(l.token) == 0 { // dynamic update rr.
|
|
return nil
|
|
}
|
|
|
|
i, e := strconv.ParseUint(l.token, 10, 8)
|
|
if e != nil || l.err {
|
|
return &ParseError{f, "bad SMIMEA Usage", l}
|
|
}
|
|
rr.Usage = uint8(i)
|
|
c.Next() // zBlank
|
|
l, _ = c.Next()
|
|
i, e = strconv.ParseUint(l.token, 10, 8)
|
|
if e != nil || l.err {
|
|
return &ParseError{f, "bad SMIMEA Selector", l}
|
|
}
|
|
rr.Selector = uint8(i)
|
|
c.Next() // zBlank
|
|
l, _ = c.Next()
|
|
i, e = strconv.ParseUint(l.token, 10, 8)
|
|
if e != nil || l.err {
|
|
return &ParseError{f, "bad SMIMEA MatchingType", l}
|
|
}
|
|
rr.MatchingType = uint8(i)
|
|
// So this needs be e2 (i.e. different than e), because...??t
|
|
s, e2 := endingToString(c, "bad SMIMEA Certificate", f)
|
|
if e2 != nil {
|
|
return e2
|
|
}
|
|
rr.Certificate = s
|
|
return nil
|
|
}
|
|
|
|
func (rr *RFC3597) parse(c *zlexer, o, f string) *ParseError {
|
|
l, _ := c.Next()
|
|
if l.token != "\\#" {
|
|
return &ParseError{f, "bad RFC3597 Rdata", l}
|
|
}
|
|
|
|
c.Next() // zBlank
|
|
l, _ = c.Next()
|
|
rdlength, e := strconv.Atoi(l.token)
|
|
if e != nil || l.err {
|
|
return &ParseError{f, "bad RFC3597 Rdata ", l}
|
|
}
|
|
|
|
s, e1 := endingToString(c, "bad RFC3597 Rdata", f)
|
|
if e1 != nil {
|
|
return e1
|
|
}
|
|
if rdlength*2 != len(s) {
|
|
return &ParseError{f, "bad RFC3597 Rdata", l}
|
|
}
|
|
rr.Rdata = s
|
|
return nil
|
|
}
|
|
|
|
func (rr *SPF) parse(c *zlexer, o, f string) *ParseError {
|
|
s, e := endingToTxtSlice(c, "bad SPF Txt", f)
|
|
if e != nil {
|
|
return e
|
|
}
|
|
rr.Txt = s
|
|
return nil
|
|
}
|
|
|
|
func (rr *AVC) parse(c *zlexer, o, f string) *ParseError {
|
|
s, e := endingToTxtSlice(c, "bad AVC Txt", f)
|
|
if e != nil {
|
|
return e
|
|
}
|
|
rr.Txt = s
|
|
return nil
|
|
}
|
|
|
|
func (rr *TXT) parse(c *zlexer, o, f string) *ParseError {
|
|
// no zBlank reading here, because all this rdata is TXT
|
|
s, e := endingToTxtSlice(c, "bad TXT Txt", f)
|
|
if e != nil {
|
|
return e
|
|
}
|
|
rr.Txt = s
|
|
return nil
|
|
}
|
|
|
|
// identical to setTXT
|
|
func (rr *NINFO) parse(c *zlexer, o, f string) *ParseError {
|
|
s, e := endingToTxtSlice(c, "bad NINFO ZSData", f)
|
|
if e != nil {
|
|
return e
|
|
}
|
|
rr.ZSData = s
|
|
return nil
|
|
}
|
|
|
|
func (rr *URI) parse(c *zlexer, o, f string) *ParseError {
|
|
l, _ := c.Next()
|
|
if len(l.token) == 0 { // dynamic update rr.
|
|
return nil
|
|
}
|
|
|
|
i, e := strconv.ParseUint(l.token, 10, 16)
|
|
if e != nil || l.err {
|
|
return &ParseError{f, "bad URI Priority", l}
|
|
}
|
|
rr.Priority = uint16(i)
|
|
c.Next() // zBlank
|
|
l, _ = c.Next()
|
|
i, e = strconv.ParseUint(l.token, 10, 16)
|
|
if e != nil || l.err {
|
|
return &ParseError{f, "bad URI Weight", l}
|
|
}
|
|
rr.Weight = uint16(i)
|
|
|
|
c.Next() // zBlank
|
|
s, err := endingToTxtSlice(c, "bad URI Target", f)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if len(s) != 1 {
|
|
return &ParseError{f, "bad URI Target", l}
|
|
}
|
|
rr.Target = s[0]
|
|
return nil
|
|
}
|
|
|
|
func (rr *DHCID) parse(c *zlexer, o, f string) *ParseError {
|
|
// awesome record to parse!
|
|
s, e := endingToString(c, "bad DHCID Digest", f)
|
|
if e != nil {
|
|
return e
|
|
}
|
|
rr.Digest = s
|
|
return nil
|
|
}
|
|
|
|
func (rr *NID) parse(c *zlexer, o, f string) *ParseError {
|
|
l, _ := c.Next()
|
|
if len(l.token) == 0 { // dynamic update rr.
|
|
return slurpRemainder(c, f)
|
|
}
|
|
|
|
i, e := strconv.ParseUint(l.token, 10, 16)
|
|
if e != nil || l.err {
|
|
return &ParseError{f, "bad NID Preference", l}
|
|
}
|
|
rr.Preference = uint16(i)
|
|
c.Next() // zBlank
|
|
l, _ = c.Next() // zString
|
|
u, err := stringToNodeID(l)
|
|
if err != nil || l.err {
|
|
return err
|
|
}
|
|
rr.NodeID = u
|
|
return slurpRemainder(c, f)
|
|
}
|
|
|
|
func (rr *L32) parse(c *zlexer, o, f string) *ParseError {
|
|
l, _ := c.Next()
|
|
if len(l.token) == 0 { // dynamic update rr.
|
|
return slurpRemainder(c, f)
|
|
}
|
|
|
|
i, e := strconv.ParseUint(l.token, 10, 16)
|
|
if e != nil || l.err {
|
|
return &ParseError{f, "bad L32 Preference", l}
|
|
}
|
|
rr.Preference = uint16(i)
|
|
c.Next() // zBlank
|
|
l, _ = c.Next() // zString
|
|
rr.Locator32 = net.ParseIP(l.token)
|
|
if rr.Locator32 == nil || l.err {
|
|
return &ParseError{f, "bad L32 Locator", l}
|
|
}
|
|
return slurpRemainder(c, f)
|
|
}
|
|
|
|
func (rr *LP) parse(c *zlexer, o, f string) *ParseError {
|
|
l, _ := c.Next()
|
|
if len(l.token) == 0 { // dynamic update rr.
|
|
return slurpRemainder(c, f)
|
|
}
|
|
|
|
i, e := strconv.ParseUint(l.token, 10, 16)
|
|
if e != nil || l.err {
|
|
return &ParseError{f, "bad LP Preference", l}
|
|
}
|
|
rr.Preference = uint16(i)
|
|
|
|
c.Next() // zBlank
|
|
l, _ = c.Next() // zString
|
|
rr.Fqdn = l.token
|
|
name, nameOk := toAbsoluteName(l.token, o)
|
|
if l.err || !nameOk {
|
|
return &ParseError{f, "bad LP Fqdn", l}
|
|
}
|
|
rr.Fqdn = name
|
|
|
|
return slurpRemainder(c, f)
|
|
}
|
|
|
|
func (rr *L64) parse(c *zlexer, o, f string) *ParseError {
|
|
l, _ := c.Next()
|
|
if len(l.token) == 0 { // dynamic update rr.
|
|
return slurpRemainder(c, f)
|
|
}
|
|
|
|
i, e := strconv.ParseUint(l.token, 10, 16)
|
|
if e != nil || l.err {
|
|
return &ParseError{f, "bad L64 Preference", l}
|
|
}
|
|
rr.Preference = uint16(i)
|
|
c.Next() // zBlank
|
|
l, _ = c.Next() // zString
|
|
u, err := stringToNodeID(l)
|
|
if err != nil || l.err {
|
|
return err
|
|
}
|
|
rr.Locator64 = u
|
|
return slurpRemainder(c, f)
|
|
}
|
|
|
|
func (rr *UID) parse(c *zlexer, o, f string) *ParseError {
|
|
l, _ := c.Next()
|
|
if len(l.token) == 0 { // dynamic update rr.
|
|
return slurpRemainder(c, f)
|
|
}
|
|
|
|
i, e := strconv.ParseUint(l.token, 10, 32)
|
|
if e != nil || l.err {
|
|
return &ParseError{f, "bad UID Uid", l}
|
|
}
|
|
rr.Uid = uint32(i)
|
|
return slurpRemainder(c, f)
|
|
}
|
|
|
|
func (rr *GID) parse(c *zlexer, o, f string) *ParseError {
|
|
l, _ := c.Next()
|
|
if len(l.token) == 0 { // dynamic update rr.
|
|
return slurpRemainder(c, f)
|
|
}
|
|
|
|
i, e := strconv.ParseUint(l.token, 10, 32)
|
|
if e != nil || l.err {
|
|
return &ParseError{f, "bad GID Gid", l}
|
|
}
|
|
rr.Gid = uint32(i)
|
|
return slurpRemainder(c, f)
|
|
}
|
|
|
|
func (rr *UINFO) parse(c *zlexer, o, f string) *ParseError {
|
|
s, e := endingToTxtSlice(c, "bad UINFO Uinfo", f)
|
|
if e != nil {
|
|
return e
|
|
}
|
|
if ln := len(s); ln == 0 {
|
|
return nil
|
|
}
|
|
rr.Uinfo = s[0] // silently discard anything after the first character-string
|
|
return nil
|
|
}
|
|
|
|
func (rr *PX) parse(c *zlexer, o, f string) *ParseError {
|
|
l, _ := c.Next()
|
|
if len(l.token) == 0 { // dynamic update rr.
|
|
return slurpRemainder(c, f)
|
|
}
|
|
|
|
i, e := strconv.ParseUint(l.token, 10, 16)
|
|
if e != nil || l.err {
|
|
return &ParseError{f, "bad PX Preference", l}
|
|
}
|
|
rr.Preference = uint16(i)
|
|
|
|
c.Next() // zBlank
|
|
l, _ = c.Next() // zString
|
|
rr.Map822 = l.token
|
|
map822, map822Ok := toAbsoluteName(l.token, o)
|
|
if l.err || !map822Ok {
|
|
return &ParseError{f, "bad PX Map822", l}
|
|
}
|
|
rr.Map822 = map822
|
|
|
|
c.Next() // zBlank
|
|
l, _ = c.Next() // zString
|
|
rr.Mapx400 = l.token
|
|
mapx400, mapx400Ok := toAbsoluteName(l.token, o)
|
|
if l.err || !mapx400Ok {
|
|
return &ParseError{f, "bad PX Mapx400", l}
|
|
}
|
|
rr.Mapx400 = mapx400
|
|
|
|
return slurpRemainder(c, f)
|
|
}
|
|
|
|
func (rr *CAA) parse(c *zlexer, o, f string) *ParseError {
|
|
l, _ := c.Next()
|
|
if len(l.token) == 0 { // dynamic update rr.
|
|
return nil
|
|
}
|
|
|
|
i, err := strconv.ParseUint(l.token, 10, 8)
|
|
if err != nil || l.err {
|
|
return &ParseError{f, "bad CAA Flag", l}
|
|
}
|
|
rr.Flag = uint8(i)
|
|
|
|
c.Next() // zBlank
|
|
l, _ = c.Next() // zString
|
|
if l.value != zString {
|
|
return &ParseError{f, "bad CAA Tag", l}
|
|
}
|
|
rr.Tag = l.token
|
|
|
|
c.Next() // zBlank
|
|
s, e := endingToTxtSlice(c, "bad CAA Value", f)
|
|
if e != nil {
|
|
return e
|
|
}
|
|
if len(s) != 1 {
|
|
return &ParseError{f, "bad CAA Value", l}
|
|
}
|
|
rr.Value = s[0]
|
|
return nil
|
|
}
|
|
|
|
func (rr *TKEY) parse(c *zlexer, o, f string) *ParseError {
|
|
l, _ := c.Next()
|
|
|
|
// Algorithm
|
|
if l.value != zString {
|
|
return &ParseError{f, "bad TKEY algorithm", l}
|
|
}
|
|
rr.Algorithm = l.token
|
|
c.Next() // zBlank
|
|
|
|
// Get the key length and key values
|
|
l, _ = c.Next()
|
|
i, err := strconv.ParseUint(l.token, 10, 8)
|
|
if err != nil || l.err {
|
|
return &ParseError{f, "bad TKEY key length", l}
|
|
}
|
|
rr.KeySize = uint16(i)
|
|
c.Next() // zBlank
|
|
l, _ = c.Next()
|
|
if l.value != zString {
|
|
return &ParseError{f, "bad TKEY key", l}
|
|
}
|
|
rr.Key = l.token
|
|
c.Next() // zBlank
|
|
|
|
// Get the otherdata length and string data
|
|
l, _ = c.Next()
|
|
i, err = strconv.ParseUint(l.token, 10, 8)
|
|
if err != nil || l.err {
|
|
return &ParseError{f, "bad TKEY otherdata length", l}
|
|
}
|
|
rr.OtherLen = uint16(i)
|
|
c.Next() // zBlank
|
|
l, _ = c.Next()
|
|
if l.value != zString {
|
|
return &ParseError{f, "bad TKEY otherday", l}
|
|
}
|
|
rr.OtherData = l.token
|
|
|
|
return nil
|
|
}
|