| 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 { |
| u.Answer = append(u.Answer, &ANY{Hdr: RR_Header{Name: r.Header().Name, Ttl: 0, Rrtype: r.Header().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 { |
| u.Answer = append(u.Answer, &ANY{Hdr: RR_Header{Name: r.Header().Name, Ttl: 0, Rrtype: r.Header().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 { |
| u.Ns = append(u.Ns, &ANY{Hdr: RR_Header{Name: r.Header().Name, Ttl: 0, Rrtype: r.Header().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 { |
| r.Header().Class = ClassNONE |
| r.Header().Ttl = 0 |
| u.Ns = append(u.Ns, r) |
| } |
| } |