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DNS: Fix some bugs; Refactors; Optimizations (#4659)

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patterniha 2025-04-29 12:09:57 +03:30 • committed by GitHub
parent 1c4e246788
commit aa4134f4a6
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GPG key ID: B5690EEEBB952194
22 changed files with 658 additions and 978 deletions
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24
features/dns/localdns/client.go
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@ -30,29 +30,31 @@ func (*Client) LookupIP(host string, option dns.IPOption) ([]net.IP, uint32, err
ipv6 := make([]net.IP, 0, len(ips))
for _, ip := range ips {
parsed := net.IPAddress(ip)
if parsed != nil {
parsedIPs = append(parsedIPs, parsed.IP())
if parsed == nil {
continue
}
if len(ip) == net.IPv4len {
ipv4 = append(ipv4, ip)
}
if len(ip) == net.IPv6len {
ipv6 = append(ipv6, ip)
parsedIP := parsed.IP()
parsedIPs = append(parsedIPs, parsedIP)
if len(parsedIP) == net.IPv4len {
ipv4 = append(ipv4, parsedIP)
} else {
ipv6 = append(ipv6, parsedIP)
}
}
// Local DNS ttl is 600
switch {
case option.IPv4Enable && option.IPv6Enable:
if len(parsedIPs) > 0 {
return parsedIPs, 600, nil
return parsedIPs, dns.DefaultTTL, nil
}
case option.IPv4Enable:
if len(ipv4) > 0 {
return ipv4, 600, nil
return ipv4, dns.DefaultTTL, nil
}
case option.IPv6Enable:
if len(ipv6) > 0 {
return ipv6, 600, nil
return ipv6, dns.DefaultTTL, nil
}
}
return nil, 0, dns.ErrEmptyResponse