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Code Issues Releases Wiki Activity

Update dns.go

pull/4926/head
xqzr 2025-07-24 05:48:44 +08:00 committed by GitHub
parent 34db99f319
commit 9ae5e54fd4
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GPG Key ID: B5690EEEBB952194
1 changed files with 6 additions and 9 deletions
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15
app/dns/dns.go
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@ -190,13 +190,12 @@ func (s *DNS) LookupIP(domain string, option dns.IPOption) ([]net.IP, uint32, er
return nil, 0, errors.New("empty domain name")
}
option.IPv4Enable = option.IPv4Enable && s.ipOption.IPv4Enable
option.IPv6Enable = option.IPv6Enable && s.ipOption.IPv6Enable
if s.checkSystem {
supportIPv4, supportIPv6 := checkSystemNetwork()
option.IPv4Enable = option.IPv4Enable && supportIPv4
option.IPv6Enable = option.IPv6Enable && supportIPv6
} else {
option.IPv4Enable = option.IPv4Enable && s.ipOption.IPv4Enable
option.IPv6Enable = option.IPv6Enable && s.ipOption.IPv6Enable
}
if !option.IPv4Enable && !option.IPv6Enable {
@ -330,17 +329,15 @@ func init() {
func checkSystemNetwork() (supportIPv4 bool, supportIPv6 bool) {
conn4, err4 := net.Dial("udp4", "8.8.8.8:53")
if err4 != nil {
supportIPv4 = false
} else {
supportIPv4 = false
if err4 == nil {
supportIPv4 = true
conn4.Close()
}
conn6, err6 := net.Dial("udp6", "[2001:4860:4860::8888]:53")
if err6 != nil {
supportIPv6 = false
} else {
supportIPv6 = false
if err6 == nil {
supportIPv6 = true
conn6.Close()
}