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Fix DNS crash

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This commit is contained in:
世界 2025-04-22 23:02:06 +08:00
parent e6d19de58a
commit f600e02e47
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GPG Key ID: CD109927C34A63C4
3 changed files with 6 additions and 8 deletions
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2
go.mod
View File

@ -27,7 +27,7 @@ require (
github.com/sagernet/quic-go v0.49.0-beta.1 github.com/sagernet/quic-go v0.49.0-beta.1
github.com/sagernet/reality v0.0.0-20230406110435-ee17307e7691 github.com/sagernet/reality v0.0.0-20230406110435-ee17307e7691
github.com/sagernet/sing v0.6.6 github.com/sagernet/sing v0.6.6
github.com/sagernet/sing-dns v0.4.1 github.com/sagernet/sing-dns v0.4.2
github.com/sagernet/sing-mux v0.3.1 github.com/sagernet/sing-mux v0.3.1
github.com/sagernet/sing-quic v0.4.1 github.com/sagernet/sing-quic v0.4.1
github.com/sagernet/sing-shadowsocks v0.2.7 github.com/sagernet/sing-shadowsocks v0.2.7

6
go.sum
View File

@ -119,12 +119,10 @@ github.com/sagernet/quic-go v0.49.0-beta.1/go.mod h1:uesWD1Ihrldq1M3XtjuEvIUqi8W
github.com/sagernet/reality v0.0.0-20230406110435-ee17307e7691 h1:5Th31OC6yj8byLGkEnIYp6grlXfo1QYUfiYFGjewIdc= github.com/sagernet/reality v0.0.0-20230406110435-ee17307e7691 h1:5Th31OC6yj8byLGkEnIYp6grlXfo1QYUfiYFGjewIdc=
github.com/sagernet/reality v0.0.0-20230406110435-ee17307e7691/go.mod h1:B8lp4WkQ1PwNnrVMM6KyuFR20pU8jYBD+A4EhJovEXU= github.com/sagernet/reality v0.0.0-20230406110435-ee17307e7691/go.mod h1:B8lp4WkQ1PwNnrVMM6KyuFR20pU8jYBD+A4EhJovEXU=
github.com/sagernet/sing v0.2.18/go.mod h1:OL6k2F0vHmEzXz2KW19qQzu172FDgSbUSODylighuVo= github.com/sagernet/sing v0.2.18/go.mod h1:OL6k2F0vHmEzXz2KW19qQzu172FDgSbUSODylighuVo=
github.com/sagernet/sing v0.6.6-0.20250406121928-926a5a1e8bb7 h1:ZJauxLmH12Gzv3nucfjsSBQw9UA8t7Sxu8pYHBSP2TU=
github.com/sagernet/sing v0.6.6-0.20250406121928-926a5a1e8bb7/go.mod h1:ARkL0gM13/Iv5VCZmci/NuoOlePoIsW0m7BWfln/Hak=
github.com/sagernet/sing v0.6.6 h1:3JkvJ0vqDj/jJcx0a+ve/6lMOrSzZm30I3wrIuZtmRE= github.com/sagernet/sing v0.6.6 h1:3JkvJ0vqDj/jJcx0a+ve/6lMOrSzZm30I3wrIuZtmRE=
github.com/sagernet/sing v0.6.6/go.mod h1:ARkL0gM13/Iv5VCZmci/NuoOlePoIsW0m7BWfln/Hak= github.com/sagernet/sing v0.6.6/go.mod h1:ARkL0gM13/Iv5VCZmci/NuoOlePoIsW0m7BWfln/Hak=
github.com/sagernet/sing-dns v0.4.1 h1:nozS7iqpxZ7aV73oHbkD/8haOvf3XXDCgT//8NdYirk= github.com/sagernet/sing-dns v0.4.2 h1:cWe2XPUBFLep2j9kJV4Epg3bctGhMvrrl/sWi9Wszfg=
github.com/sagernet/sing-dns v0.4.1/go.mod h1:dweQs54ng2YGzoJfz+F9dGuDNdP5pJ3PLeggnK5VWc8= github.com/sagernet/sing-dns v0.4.2/go.mod h1:dweQs54ng2YGzoJfz+F9dGuDNdP5pJ3PLeggnK5VWc8=
github.com/sagernet/sing-mux v0.3.1 h1:kvCc8HyGAskDHDQ0yQvoTi/7J4cZPB/VJMsAM3MmdQI= github.com/sagernet/sing-mux v0.3.1 h1:kvCc8HyGAskDHDQ0yQvoTi/7J4cZPB/VJMsAM3MmdQI=
github.com/sagernet/sing-mux v0.3.1/go.mod h1:Mkdz8LnDstthz0HWuA/5foncnDIdcNN5KZ6AdJX+x78= github.com/sagernet/sing-mux v0.3.1/go.mod h1:Mkdz8LnDstthz0HWuA/5foncnDIdcNN5KZ6AdJX+x78=
github.com/sagernet/sing-quic v0.4.1 h1:pxlMa4efZu/M07RgGagNNDDyl6ZUwpmNUjRTpgHOWK4= github.com/sagernet/sing-quic v0.4.1 h1:pxlMa4efZu/M07RgGagNNDDyl6ZUwpmNUjRTpgHOWK4=

6
route/route_dns.go
View File

@ -223,6 +223,9 @@ func (r *Router) Lookup(ctx context.Context, domain string, strategy dns.DomainS
err error err error
) )
printResult := func() { printResult := func() {
if err == nil && len(responseAddrs) == 0 {
err = E.New("empty result")
}
if err != nil { if err != nil {
if errors.Is(err, dns.ErrResponseRejectedCached) { if errors.Is(err, dns.ErrResponseRejectedCached) {
r.dnsLogger.DebugContext(ctx, "response rejected for ", domain, " (cached)") r.dnsLogger.DebugContext(ctx, "response rejected for ", domain, " (cached)")
@ -231,9 +234,6 @@ func (r *Router) Lookup(ctx context.Context, domain string, strategy dns.DomainS
} else { } else {
r.dnsLogger.ErrorContext(ctx, E.Cause(err, "lookup failed for ", domain)) r.dnsLogger.ErrorContext(ctx, E.Cause(err, "lookup failed for ", domain))
} }
} else if len(responseAddrs) == 0 {
r.dnsLogger.ErrorContext(ctx, "lookup failed for ", domain, ": empty result")
err = dns.RCodeNameError
} }
} }
responseAddrs, cached = r.dnsClient.LookupCache(ctx, domain, strategy) responseAddrs, cached = r.dnsClient.LookupCache(ctx, domain, strategy)