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fix bug

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This commit is contained in:
j2rong4cn 2025-05-01 11:40:31 +08:00
parent a6e8fe409a
commit 13b70d5543
2 changed files with 7 additions and 1 deletions
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5
app/dns/dns.go
View file

@ -189,7 +189,10 @@ func (s *DNS) LookupIP(domain string, option dns.IPOption) ([]net.IP, uint32, er
// Static host lookup
switch addrs, err := s.hosts.Lookup(domain, option); {
case err != nil:
return nil, 0, err
if go_errors.Is(err, dns.ErrEmptyResponse) {
return nil, 0, dns.ErrEmptyResponse
}
return nil, 0, errors.New("returning nil for domain ", domain).Base(err)
case addrs == nil: // Domain not recorded in static host
break
case len(addrs) == 0: // Domain recorded, but no valid IP returned (e.g. IPv4 address with only IPv6 enabled)

3
app/dns/hosts.go
View file

@ -86,6 +86,9 @@ func (h *StaticHosts) lookup(domain string, option dns.IPOption, maxDepth int) (
return addrs, nil
case len(addrs) == 1:
if err, ok := addrs[0].(dns.RCodeError); ok {
if uint16(err) == 0 {
return nil, dns.ErrEmptyResponse
}
return nil, err
}
if addrs[0].Family().IsDomain() { // Try to unwrap domain