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This commit is contained in:
Miek Gieben 2011-07-31 22:29:50 +02:00
parent 9bee591bc0
commit ba30caf3b3
1 changed files with 8 additions and 9 deletions
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17
zone.go
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@ -13,7 +13,7 @@ import (
const _CLASS = 2 << 16
// ZRRset is a structure that keeps several items from
// a zone file together. It helps in speeding up DNSSEC lookups.
// a zone file together.
type ZRRset struct {
RRs RRset // the RRset for this type and name
RRsigs RRset // the RRSIGs belonging to this RRset (if any)
@ -21,6 +21,7 @@ type ZRRset struct {
Glue bool // when this RRset is glue, set to true
}
// NewZRRset returns a pointer to a new ZRRset.
func NewZRRset() *ZRRset {
s := new(ZRRset)
s.RRs = NewRRset()
@ -28,14 +29,10 @@ func NewZRRset() *ZRRset {
return s
}
// Zone implements the concept of RFC 1035 master zone files.
// This will be converted to some kind of tree structure
// type Zone map[string]map[int]*ZRRset
// Zone implements the concept of RFC 1035 master zone files.
// We store the zone contents in a map where the ownername is
// the key. In that map we have another map with integers
// (class * _CLASS + type) that has the RRset:
// (class * _CLASS + type) that has the ZRRset:
// map[<ownername>] -> map[<int>] -> ZRRset
type Zone struct {
Zone map[string]map[int]*ZRRset // the contents of the zone
@ -50,6 +47,7 @@ func NewZone() *Zone {
return z
}
// Pop returns the last pushed ZRRset from z.
// Get the first value
func (z *Zone) Pop() *ZRRset {
for _, v := range z.Zone {
@ -60,6 +58,7 @@ func (z *Zone) Pop() *ZRRset {
return nil
}
// PopRR returns the last RR pushed from z.
func (z *Zone) PopRR() RR {
s := z.Pop()
if s == nil {
@ -77,6 +76,7 @@ func (z *Zone) PopRR() RR {
return nil
}
// Len returns the number of RRs in z.
func (z *Zone) Len() int {
i := 0
for _, im := range z.Zone {
@ -104,8 +104,7 @@ func (z *Zone) String() string {
return s
}
// Add a new RR to the zone. First we need to find out if the
// RR already lives inside it.
// PushRR adds a new RR to the zone.
func (z *Zone) PushRR(r RR) {
s, _ := z.LookupRR(r)
if s == nil {
@ -125,7 +124,7 @@ func (z *Zone) PushRR(r RR) {
z.Push(s)
}
// Push a new ZRRset to the zone
// Push adds a new ZRRset to the zone.
func (z *Zone) Push(s *ZRRset) {
// s can hold RRs, RRsigs or a Nxt
name := ""