d0220e5814
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The ErrNotImplemented sentinel error was dead code left over from initial scaffolding. The resolver performs real iterative DNS lookups from root servers, PortCheck does TCP connection checks, and TLSCheck verifies TLS certificates and expiry. Removed the unused error constant.
23 lines
562 B
Go
23 lines
562 B
Go
package resolver
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import "errors"
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// Sentinel errors returned by the resolver.
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var (
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// ErrNoNameservers is returned when no authoritative NS
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// could be discovered for a domain.
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ErrNoNameservers = errors.New(
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"no authoritative nameservers found",
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)
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// ErrCNAMEDepthExceeded is returned when a CNAME chain
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// exceeds MaxCNAMEDepth.
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ErrCNAMEDepthExceeded = errors.New(
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"CNAME chain depth exceeded",
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)
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// ErrContextCanceled wraps context cancellation for the
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// resolver's iterative queries.
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ErrContextCanceled = errors.New("context canceled")
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)
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