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package dnssec
import "github.com/miekg/dns"
// newRRSIG returns a new RRSIG, with all fields filled out, except the signed data.
func (k *DNSKEY) newRRSIG(signerName string, ttl, incep, expir uint32) *dns.RRSIG {
sig := new(dns.RRSIG)
sig.Hdr.Rrtype = dns.TypeRRSIG
sig.Algorithm = k.K.Algorithm
sig.KeyTag = k.tag
sig.SignerName = signerName
sig.Hdr.Ttl = ttl
sig.OrigTtl = origTTL
sig.Inception = incep
sig.Expiration = expir
return sig
}
type rrset struct {
qname string
qtype uint16
}
// rrSets returns rrs as a map of RRsets. It skips RRSIG and OPT records as those don't need to be signed.
func rrSets(rrs []dns.RR) map[rrset][]dns.RR {
m := make(map[rrset][]dns.RR)
for _, r := range rrs {
if r.Header().Rrtype == dns.TypeRRSIG || r.Header().Rrtype == dns.TypeOPT {
continue
}
if s, ok := m[rrset{r.Header().Name, r.Header().Rrtype}]; ok {
s = append(s, r)
m[rrset{r.Header().Name, r.Header().Rrtype}] = s
continue
}
s := make([]dns.RR, 1, 3)
s[0] = r
m[rrset{r.Header().Name, r.Header().Rrtype}] = s
}
if len(m) > 0 {
return m
}
return nil
}
const origTTL = 3600
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