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Fix dns cache in lookup

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Mahdi 2025-10-09 07:18:46 -07:00 • committed by 世界
parent 41b30c91d9
commit 6557bd7029
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1 changed files with 7 additions and 3 deletions
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10
dns/client.go
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@ -214,7 +214,7 @@ func (c *Client) Exchange(ctx context.Context, transport adapter.DNSTransport, m
response.Answer = append(response.Answer, validResponse.Answer...)
}
}*/
disableCache = disableCache || response.Rcode != dns.RcodeSuccess || len(response.Answer) == 0
disableCache = disableCache || (response.Rcode != dns.RcodeSuccess && response.Rcode != dns.RcodeNameError) || len(response.Answer) == 0
if responseChecker != nil {
var rejected bool
// TODO: add accept_any rule and support to check response instead of addresses
@ -364,14 +364,18 @@ func (c *Client) LookupCache(domain string, strategy C.DomainStrategy) ([]netip.
Qtype: dns.TypeA,
Qclass: dns.ClassINET,
}, nil)
if response4 == nil {
return nil, false
}
response6, _ := c.loadResponse(dns.Question{
Name: dnsName,
Qtype: dns.TypeAAAA,
Qclass: dns.ClassINET,
}, nil)
if response4 != nil || response6 != nil {
return sortAddresses(MessageToAddresses(response4), MessageToAddresses(response6), strategy), true
if response6 == nil {
return nil, false
}
return sortAddresses(MessageToAddresses(response4), MessageToAddresses(response6), strategy), true
}
return nil, false
}