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Fix DNS lookup

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This commit is contained in:
世界
2025-04-25 16:27:56 +08:00
parent a15f35a076
commit 73f4b41366
4 changed files with 42 additions and 10 deletions
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11
dns/router.go
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@@ -323,6 +323,9 @@ func (r *Router) Lookup(ctx context.Context, domain string, options adapter.DNSQ
err error
)
printResult := func() {
if err == nil && len(responseAddrs) == 0 {
err = E.New("empty result")
}
if err != nil {
if errors.Is(err, ErrResponseRejectedCached) {
r.logger.DebugContext(ctx, "response rejected for ", domain, " (cached)")
@@ -331,15 +334,15 @@ func (r *Router) Lookup(ctx context.Context, domain string, options adapter.DNSQ
} else {
r.logger.ErrorContext(ctx, E.Cause(err, "lookup failed for ", domain))
}
} else if len(responseAddrs) == 0 {
r.logger.ErrorContext(ctx, "lookup failed for ", domain, ": empty result")
err = RcodeNameError
}
if err != nil {
err = E.Cause(err, "lookup ", domain)
}
}
responseAddrs, cached = r.client.LookupCache(domain, options.Strategy)
if cached {
if len(responseAddrs) == 0 {
return nil, RcodeNameError
return nil, E.New("lookup ", domain, ": empty result (cached)")
}
return responseAddrs, nil
}