26 lines
741 B
Go
26 lines
741 B
Go
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package dns
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//go:generate go run duplicate_generate.go
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// IsDuplicate checks of r1 and r2 are duplicates of each other, excluding the TTL.
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// So this means the header data is equal *and* the RDATA is the same. Return true
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// is so, otherwise false.
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// It's is a protocol violation to have identical RRs in a message.
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func IsDuplicate(r1, r2 RR) bool {
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if r1.Header().Class != r2.Header().Class {
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return false
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}
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if r1.Header().Rrtype != r2.Header().Rrtype {
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return false
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}
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if !isDulicateName(r1.Header().Name, r2.Header().Name) {
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return false
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}
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// ignore TTL
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return isDuplicateRdata(r1, r2)
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}
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// isDulicateName checks if the domain names s1 and s2 are equal.
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func isDulicateName(s1, s2 string) bool { return equal(s1, s2) }
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