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Fix unexpected TTL clamp

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Fangliding 2026-06-23 02:53:23 +08:00
parent be8009c625
commit 9105f80b98
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1 changed files with 7 additions and 2 deletions
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9
app/dns/dnscommon.go
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@ -198,9 +198,14 @@ func parseResponse(payload []byte) (*IPRecord, error) {
ipRecord := &IPRecord{
ReqID: h.ID,
RCode: h.RCode,
Expire: now.Add(time.Second * dns_feature.DefaultTTL),
RawHeader: &h,
}
defer func() {
// set to default TTL if no valid TTL is found
if ipRecord.Expire.IsZero() {
ipRecord.Expire = now.Add(time.Second * dns_feature.DefaultTTL)
}
}()
L:
for {
@ -217,7 +222,7 @@ L:
ttl = 1
}
expire := now.Add(time.Duration(ttl) * time.Second)
if ipRecord.Expire.After(expire) {
if ipRecord.Expire.IsZero() || ipRecord.Expire.After(expire) {
ipRecord.Expire = expire
}