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Merge:- rewrites: fix crash when handling name->cname->A chain 

Close #1704 Close #1712

* commit '0848ca0e69e3c535b70e2d1f7e8c24f0e1941ee9':
  - rewrites: fix crash when handling name->cname->A chain
This commit is contained in:
Simon Zolin 2020-05-21 14:58:32 +03:00
parent b5e78c760a 0848ca0e69
commit 8d91e042cc
1 changed files with 3 additions and 0 deletions
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3
dnsforward/handle_dns.go
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@ -211,6 +211,9 @@ func processFilteringAfterResponse(ctx *dnsContext) int {
switch res.Reason { switch res.Reason {
case dnsfilter.ReasonRewrite: case dnsfilter.ReasonRewrite:
if d.Res != nil {
break // response is already prepared
}
if len(res.CanonName) == 0 { if len(res.CanonName) == 0 {
break break
} }