Merge pull request #201 from Bytom/v0.1

[bytom/vapor.git] / vendor / github.com / miekg / dns / update.go

diff --git a/vendor/github.com/miekg/dns/update.go b/vendor/github.com/miekg/dns/update.go
new file mode 100644 (file)
index 0000000..69dd386
--- /dev/null
+++ b/vendor/github.com/miekg/dns/update.go
@@ -0,0 +1,110 @@
+package dns
+
+// NameUsed sets the RRs in the prereq section to
+// "Name is in use" RRs. RFC 2136 section 2.4.4.
+func (u *Msg) NameUsed(rr []RR) {
+       if u.Answer == nil {
+               u.Answer = make([]RR, 0, len(rr))
+       }
+       for _, r := range rr {
+               u.Answer = append(u.Answer, &ANY{Hdr: RR_Header{Name: r.Header().Name, Ttl: 0, Rrtype: TypeANY, Class: ClassANY}})
+       }
+}
+
+// NameNotUsed sets the RRs in the prereq section to
+// "Name is in not use" RRs. RFC 2136 section 2.4.5.
+func (u *Msg) NameNotUsed(rr []RR) {
+       if u.Answer == nil {
+               u.Answer = make([]RR, 0, len(rr))
+       }
+       for _, r := range rr {
+               u.Answer = append(u.Answer, &ANY{Hdr: RR_Header{Name: r.Header().Name, Ttl: 0, Rrtype: TypeANY, Class: ClassNONE}})
+       }
+}
+
+// Used sets the RRs in the prereq section to
+// "RRset exists (value dependent -- with rdata)" RRs. RFC 2136 section 2.4.2.
+func (u *Msg) Used(rr []RR) {
+       if len(u.Question) == 0 {
+               panic("dns: empty question section")
+       }
+       if u.Answer == nil {
+               u.Answer = make([]RR, 0, len(rr))
+       }
+       for _, r := range rr {
+               r.Header().Class = u.Question[0].Qclass
+               u.Answer = append(u.Answer, r)
+       }
+}
+
+// RRsetUsed sets the RRs in the prereq section to
+// "RRset exists (value independent -- no rdata)" RRs. RFC 2136 section 2.4.1.
+func (u *Msg) RRsetUsed(rr []RR) {
+       if u.Answer == nil {
+               u.Answer = make([]RR, 0, len(rr))
+       }
+       for _, r := range rr {
+               h := r.Header()
+               u.Answer = append(u.Answer, &ANY{Hdr: RR_Header{Name: h.Name, Ttl: 0, Rrtype: h.Rrtype, Class: ClassANY}})
+       }
+}
+
+// RRsetNotUsed sets the RRs in the prereq section to
+// "RRset does not exist" RRs. RFC 2136 section 2.4.3.
+func (u *Msg) RRsetNotUsed(rr []RR) {
+       if u.Answer == nil {
+               u.Answer = make([]RR, 0, len(rr))
+       }
+       for _, r := range rr {
+               h := r.Header()
+               u.Answer = append(u.Answer, &ANY{Hdr: RR_Header{Name: h.Name, Ttl: 0, Rrtype: h.Rrtype, Class: ClassNONE}})
+       }
+}
+
+// Insert creates a dynamic update packet that adds an complete RRset, see RFC 2136 section 2.5.1.
+func (u *Msg) Insert(rr []RR) {
+       if len(u.Question) == 0 {
+               panic("dns: empty question section")
+       }
+       if u.Ns == nil {
+               u.Ns = make([]RR, 0, len(rr))
+       }
+       for _, r := range rr {
+               r.Header().Class = u.Question[0].Qclass
+               u.Ns = append(u.Ns, r)
+       }
+}
+
+// RemoveRRset creates a dynamic update packet that deletes an RRset, see RFC 2136 section 2.5.2.
+func (u *Msg) RemoveRRset(rr []RR) {
+       if u.Ns == nil {
+               u.Ns = make([]RR, 0, len(rr))
+       }
+       for _, r := range rr {
+               h := r.Header()
+               u.Ns = append(u.Ns, &ANY{Hdr: RR_Header{Name: h.Name, Ttl: 0, Rrtype: h.Rrtype, Class: ClassANY}})
+       }
+}
+
+// RemoveName creates a dynamic update packet that deletes all RRsets of a name, see RFC 2136 section 2.5.3
+func (u *Msg) RemoveName(rr []RR) {
+       if u.Ns == nil {
+               u.Ns = make([]RR, 0, len(rr))
+       }
+       for _, r := range rr {
+               u.Ns = append(u.Ns, &ANY{Hdr: RR_Header{Name: r.Header().Name, Ttl: 0, Rrtype: TypeANY, Class: ClassANY}})
+       }
+}
+
+// Remove creates a dynamic update packet deletes RR from a RRSset, see RFC 2136 section 2.5.4
+func (u *Msg) Remove(rr []RR) {
+       if u.Ns == nil {
+               u.Ns = make([]RR, 0, len(rr))
+       }
+       for _, r := range rr {
+               h := r.Header()
+               h.Class = ClassNONE
+               h.Ttl = 0
+               u.Ns = append(u.Ns, r)
+       }
+}