net

apparent deadlock in (*net.conn).Close and runtime.netpollblock on arm64 platforms [1.17 backport]CherryPickCandidate

#49010 opened 18 hours ago by gopherbot

apparent deadlock in (*net.conn).Close and runtime.netpollblock on arm64 platforms [1.16 backport]CherryPickCandidate

#49009 opened 18 hours ago by gopherbot

Interface.MTU is an int, but on 32-bit windows the MTU size can be >2 GiBNeedsInvestigationOS-Windows

#48762 opened 1 week ago by YouROK

default TCP Keep-Alive interval causes significant power usageNeedsInvestigation

#48622 opened 3 weeks ago by ValdikSS

add tcp WriteTo func to enable splice socket data to fileProposal

#48530 opened 3 weeks ago by jim3ma

document the meaning of "Temporary" and "Timeout"DocumentationNeedsInvestigation

#48268 opened 1 month ago by jmhodges

Deadline and Timeout Fail to Close Hung Connections. NeedsInvestigation

#48125 opened 1 month ago by JustinTimperio

real MAC address cannot be obtained after a NIC is bound on linuxNeedsInvestigation

#47828 opened 1 month ago by mzky

can't Dial("tcp6", IPv4-mapped-IPv6 address)NeedsInvestigation

#47763 opened 1 month ago by neild

LookupSRV doesn't validate record names are consistentNeedsDecision

#47110 opened 3 months ago by rolandshoemaker

add API to receive multiple UDP packets (potentially in one system call)Proposal

#45886 opened 5 months ago by bradfitz

LookupNS() cannot be used to discover root name serversNeedsInvestigation

#45715 opened 5 months ago by markdingo

Conn.Close() does not error on double close on wasmNeedsInvestigationarch-wasm

#45423 opened 6 months ago by johanbrandhorst

interleaving sendfile and read calls are very slowNeedsInvestigation

#45256 opened 6 months ago by erikdubbelboer

TestDialTimeout failures on Darwin with "Dial didn't return in an expected time"NeedsInvestigationOS-Darwin

#45212 opened 6 months ago by bcmills

timeout in TestDNSSRVUniformity on linux-mips64le-rtrkNeedsInvestigation

#45060 opened 7 months ago by bcmills

inconsistent dial tcp error message, some have colon, some don'tNeedsInvestigation

#45020 opened 7 months ago by digininja

LookupCNAME returns empty string if entry from /etc/hosts is usedNeedsInvestigation

#44741 opened 7 months ago by riton

Dialing IPv6 with timeout returns inconsistent errorNeedsInvestigation

#44543 opened 7 months ago by lmb

Ambigous error message in dnsclientNeedsInvestigation

#44208 opened 8 months ago by synergiator

LookupNS doesn't chase through CNAMEsNeedsInvestigation

#44199 opened 8 months ago by vrubiella

SIGPIPE using unix domain socketNeedsInvestigation

#44177 opened 8 months ago by helios741

populate source address on OpError when availableProposalProposal-Hold

#44127 opened 8 months ago by andybons

TestReadTimeoutFluctuation failures with "unexpected type"NeedsInvestigation

#43844 opened 8 months ago by bcmills

TestReadTimeout failures with "EOF"NeedsInvestigation

#43711 opened 9 months ago by bcmills

resolver error messages indicate wrong dns server when using custom resolverNeedsInvestigation

#43703 opened 9 months ago by ozn17

TestPacketConn failures with "i/o timeout"NeedsInvestigation

#43627 opened 9 months ago by bcmills

TestLookupHostCancel failures with "i/o timeout" on netbsd-arm*-bsiegert buildersNeedsInvestigationTesting

#43626 opened 9 months ago by bcmills

Resolver.LookupIP: document should clarify the return valuesDocumentationNeedsFixhelp wanted

#43506 opened 9 months ago by yegle

UDPConn.WriteTo and UDPConn.ReadFromUDP both allocateNeedsInvestigation

#43451 opened 9 months ago by josharian

BenchmarkUDP6LinkLocalUnicast hangsNeedsInvestigation

#43449 opened 9 months ago by josharian

BSD: DNS go resolver loses first UDP outbound packet if onlink target not in neighbor cacheNeedsInvestigationhelp wanted

#43398 opened 9 months ago by philpennock

TestLookupHostCancel failures with "Temporary failure in name resolution" on linux-riscv64-jsingNeedsInvestigationarch-riscv

#43140 opened 10 months ago by bcmills

TestDialerDualStackFDLeak failures on BSD buildersNeedsInvestigationOS-DragonflyOS-NetBSD

#43071 opened 10 months ago by bcmills

TestDialerDualStackFDLeak failures due to "i/o timeout" on solaris-amd64-oraclerel builderBuildersNeedsInvestigationOS-Solaris

#43070 opened 10 months ago by bcmills

powershell invocation in tests broken in sysarm32 modeNeedsInvestigationOS-WindowsTestingarch-arm

#42858 opened 10 months ago by zx2c4

add Interface.InterfaceAddrsProposalProposal-AcceptedProposal-FinalCommentPeriod

#42694 opened 11 months ago by jeroenjacobs79

expose LOWER_UP flag in NICsNeedsInvestigation

#42488 opened 11 months ago by x1unix

"connectex: invalid argument" when dialing an Artifactory server over IPv6NeedsInvestigationOS-Windows

#42395 opened 11 months ago by tsubus

apparent deadlock in TestVariousDeadlines on arm64NeedsInvestigationarch-arm64

#41863 opened 1 year ago by bcmills

TestSendfilePipe failures with "Read did not time out"NeedsInvestigation

#41327 opened 1 year ago by bcmills

apparent deadlock in testSpliceIssue25985 on linux-arm64-awsNeedsInvestigation

#41326 opened 1 year ago by bcmills

TCPConn.CloseRead() will not cause the net.TCPConn.Read() return on windows but it can cause return on linuxNeedsInvestigation

#41002 opened 1 year ago by chenjie199234

some Windows DNS tests rely on CNAME flatteningNeedsInvestigationOS-Windows

#40887 opened 1 year ago by zhangyoufu

some tests are skipped on Windows due to os.Getuid() always returns -1NeedsInvestigationOS-Windows

#40886 opened 1 year ago by zhangyoufu

add MarshalText/UnmarshalText to IPMaskProposal

#40436 opened 1 year ago by ChrisSwanson

not possible to set TCP backlog parameter for listenerNeedsDecision

#39000 opened 1 year ago by nemirst

TestLookupHostCancel failures with "lookup invalid.invalid: no such host" on DarwinNeedsInvestigationOS-Darwin

#38767 opened 1 year ago by bcmills

TestListenerClose failures with "Dial to closed TCP listener succeeded"NeedsInvestigation

#38700 opened 1 year ago by bcmills

clarify safe way to do URL deep-copyingDocumentationNeedsInvestigation

#38351 opened 2 years ago by rasky

failure with "limit on … simultaneously alive goroutines is exceeded" on darwin-amd64-race builderNeedsInvestigationOS-DarwinRaceDetector

#38184 opened 2 years ago by bcmills

TestLookupPTR failures on windows-amd64-longtest builderBuildersNeedsInvestigationOS-Windows

#38111 opened 2 years ago by bcmills

cannot send multicast using ListenPacket("udp4", "") on Windows 10 (1909)NeedsInvestigationOS-Windows

#37998 opened 2 years ago by filimonic

Unable to reliably distinguish IPv4-mapped-IPv6 addresses from regular IPv4 addressesNeedsInvestigation

#37921 opened 2 years ago by andrewlouis93

TestVariousDeadlines failures with "client stuck in Dial+Copy" on NetBSD buildersNeedsInvestigationOS-NetBSD

#37883 opened 2 years ago by bcmills

deadlock in TestDialParallelSpuriousConnection on darwin-arm*NeedsInvestigationOS-Darwinmobile

#37795 opened 2 years ago by bcmills

Issue with LookupAddr for "0.0.0.0" on Windows in 1.14NeedsInvestigationOS-Windows

#37657 opened 2 years ago by lz-dc

Interfaces() does not return all interfaces on WindowsNeedsInvestigation

#37652 opened 2 years ago by ChenYahui2019

IPv6 network does not contain IPv4 to IPv6 translated addressesNeedsInvestigation

#37597 opened 2 years ago by pixelbender

"cannot unmarshal DNS message" for SRV lookupNeedsInvestigation

#37362 opened 2 years ago by johnrichardrinehart

TestDialCancel failure on linux-arm with "network is unreachable"NeedsInvestigationTesting

#37330 opened 2 years ago by bcmills

consider rejecting null byte in LookupHost (and similar) on all platforms consistentlyNeedsInvestigation

#37044 opened 2 years ago by dmitshur

should expand IP address 1.1 to 1.0.0.1NeedsInvestigationhelp wanted

#36822 opened 2 years ago by jamieson99

TestReadTimeoutMustNotReturn failure on darwin-amd64-race builderNeedsInvestigation

#36796 opened 2 years ago by bcmills

cannot resolve SRV records from Samba's DNS serverNeedsDecision

#36718 opened 2 years ago by PaulForgey

document potential values for the "Op" in net.OpErrorDocumentationNeedsInvestigation

#36703 opened 2 years ago by kevinburke1

error message for ListenIP is confusingDocumentationNeedsInvestigation

#36436 opened 2 years ago by perillo

Golang udp listener send reply with unexpected source ipNeedsInvestigation

#36421 opened 2 years ago by pmghong

API to interrupt Read/Write() for polled objectsProposal

#36402 opened 2 years ago by networkimprov

expose context Canceled/DeadlineExceeded errorFeatureRequestNeedsInvestigation

#36208 opened 2 years ago by pascaldekloe

Test{Read,Write}TimeoutFluctuation failures with "took over 1s"NeedsInvestigation

#36108 opened 2 years ago by bcmills

TestScript flake with "Failed to find getsockname procedure in ws2_32.dll: The specified procedure could not be found." NeedsInvestigation

#36029 opened 2 years ago by odeke-em

IPNet JSON marshal/unmarshal inconsistencyNeedsInvestigation

#35727 opened 2 years ago by elad

better docs for PreferGo in ResolverDocumentationNeedsInvestigationhelp wanted

#35561 opened 2 years ago by renanbastos93

mass connection spike leads to unpredictable amount of memory usageNeedsInvestigationPerformance

#35407 opened 2 years ago by szuecs

broken pipe errors starting from Go 1.12 when using a deadlineNeedsInvestigation

#35373 opened 2 years ago by AmirSimon

dial tcp: no suitable address found with onion address using Go resolverNeedsInvestigationhelp wanted

#35250 opened 2 years ago by stevebert

get npcap usable windows network device names NeedsInvestigationOS-Windows

#35095 opened 2 years ago by acecase

pure Go resolver(netdns) can not resolve hostname.localNeedsInvestigation

#35067 opened 2 years ago by YongHaoWu

apparent deadlock in TestCloseWrite on darwin-arm64-corelliumNeedsInvestigationOS-Darwinhelp wanted

#34837 opened 2 years ago by bcmills

ListenPacket can't be used on multicast addressNeedsInvestigation

#34728 opened 2 years ago by quentinmit

SIGSEGV during net.TestUnixAndUnixpacketServer on solaris-amd64-oraclerel builderNeedsInvestigationOS-Solaris

#34611 opened 2 years ago by bcmills

add BufferedPipe (buffered Pipe)ProposalProposal-Hold

#34502 opened 2 years ago by iangudger

Conn hangs with SetReadDeadlineNeedsInvestigation

#34385 opened 2 years ago by harshavardhana

TestDialerLocalAddr failures with "connect: address already in use" on FreeBSDNeedsInvestigationOS-FreeBSD

#34264 opened 2 years ago by bcmills

Lookup does not support Android/iosNeedsInvestigationhelp wantedmobile

#34024 opened 2 years ago by f4nff

cannot enforce usage of netgo for DNS resolutionNeedsInvestigation

#33904 opened 2 years ago by subsr97

Resolver does not appear to use its dialer function on WindowsNeedsInvestigationOS-Windows

#33621 opened 2 years ago by HouzuoGuo

LookupTXT does not support AndroidNeedsInvestigation

#33333 opened 2 years ago by lib-xdown

make Resolver.PreferGo and GODEBUG=netdns=go use Go code on WindowsOS-WindowsProposalProposal-Acceptedhelp wanted

#33097 opened 2 years ago by moloch--

host lookup on non-GNU-libc systemsNeedsInvestigation

#33019 opened 2 years ago by tomkcook

mass tcp dial timeout with the concurrency more than 10000NeedsInvestigation

#32761 opened 2 years ago by Anteoy

a smart way to check internal/poll ErrTimeoutFeatureRequestNeedsInvestigation

#32735 opened 2 years ago by detailyang

clarify UDPConn Read behaviour documentationDocumentationNeedsFixhelp wanted

#31991 opened 2 years ago by kortschak

in LookupHost, DNS resolves addresses with dot using search domain without it being specified in resolv.confNeedsInvestigationWaitingForInfo

#31934 opened 2 years ago by XANi

DNS load balancing during bursts of trafficFeatureRequestNeedsInvestigation

#31698 opened 2 years ago by shamwow

export isDomainNameProposalProposal-Hold

#31671 opened 2 years ago by chet

KeepAlive is disabled by write to dead linkDocumentationNeedsInvestigation

#31490 opened 2 years ago by networkimprov

TestUnixAndUnixpacketServer flaky on linuxNeedsInvestigationTestinghelp wanted

#31423 opened 2 years ago by bcmills

Listen always uses nextPort() instead of the desired port on JSNeedsFixOS-JSarch-wasm

#31294 opened 2 years ago by albrow

Addr and Interface documentation is not clearDocumentationNeedsInvestigation

#31276 opened 2 years ago by AlekSi

*Conn.ReadMsgXXX documentation could be improvedDocumentationNeedsFix

#30346 opened 2 years ago by dciliske

add FlagRunning as network interface flagNeedsFixProposalProposal-Acceptedhelp wanted

#29991 opened 2 years ago by brutella

better documentation of UNIX socketsDocumentationExpertNeededNeedsFix

#29978 opened 2 years ago by alandonovan

TestLookupGmailTXT failing on Plan 9OS-Plan9

#29722 opened 2 years ago by 0intro

TestNotTemporaryRead timeouts on aix/ppc64NeedsFixTesting

#29685 opened 2 years ago by Helflym

add MarshalText/UnmarshalText to HardwareAddrNeedsDecisionProposalProposal-Hold

#29678 opened 2 years ago by maja42

UnixListener blocks forever in Close() if File() is used to get the file descriptorNeedsInvestigationhelp wanted

#29277 opened 2 years ago by prashantv

TestUDPZeroBytePayload is flaky on darwin-amd64-10_10NeedsInvestigationOS-DarwinTesting

#29225 opened 2 years ago by bcmills

cross compiled Go has lengthy timeouts when resolving names if a DNS server is invalidNeedsInvestigation

#29142 opened 2 years ago by geofffranks

support for RFC 4592FeatureRequest

#28947 opened 2 years ago by fengdingbo

meta bug for Go2 changesGo2NeedsInvestigation

#28900 opened 2 years ago by bradfitz

FreeBSD build failed with net.inet.tcp.blackhole=2NeedsInvestigation

#28883 opened 2 years ago by sternix

Resolve{TCP,UDP,IP}Addr returns IPv4 address on host without IPv4 connectivityNeedsInvestigation

#28666 opened 2 years ago by bluecmd

only js/wasm returns an error on writes to closed connectionsNeedsInvestigationOS-JSarch-wasm

#28650 opened 2 years ago by FiloSottile

clarify documentation on net.ListenConfig.Listen and related calls w.r.t. contextDocumentationNeedsFixhelp wanted

#28120 opened 3 years ago by theclapp

TestLookupDotsWithRemoteSource is flakyNeedsFixTesting

#27992 opened 3 years ago by katiehockman

support DNS-over-HTTPSFeatureRequest

#27552 opened 3 years ago by jmhodges

FileConn() and Dial() only return public net.Conn implementationsDocumentationNeedsInvestigation

#27391 opened 3 years ago by dfinkel

clarify net.Conn concurrency requirementDocumentationNeedsInvestigationTestinghelp wanted

#27203 opened 3 years ago by FiloSottile

TestVariousDeadlines failing on plan9/386 builderBuildersOS-Plan9

#26945 opened 3 years ago by 0intro

SplitHostPort errors if no port is specified, but not if input ends with a trailing ":"NeedsInvestigation

#25874 opened 3 years ago by dfawley

DNS address resolution quirks (AAAA records inconsistency)NeedsInvestigation

#25321 opened 3 years ago by gdm85

writing to TCP socket returns incorrect number of bytes upon timeout on WindowsNeedsInvestigationOS-Windowshelp wanted

#24727 opened 3 years ago by piotrnar

different lists of addresses are returned depending on order of multiple aliases in /etc/hosts on Mac OS with CGONeedsInvestigation

#24514 opened 3 years ago by murphyke

TestLookupGoogleSRV and TestLookupGmailMX flaky on buildersBuildersNeedsInvestigationTesting

#24313 opened 3 years ago by quasilyte

don't keep reading from UDP resolver after truncated packetNeedsInvestigation

#23873 opened 3 years ago by ianlancetaylor

better DNS transport for builtin DNS stub resolver

#23866 opened 3 years ago by mikioh

add support for Happy Eyeballs version 2 (RFC 8305)ProposalProposal-Accepted

#23841 opened 3 years ago by mikioh

Dial is slow on localhostNeedsInvestigationOS-Windows

#23366 opened 3 years ago by levrik

document that DialIP can only be used with WriteMsgIP of Connection-less protocolsDocumentation

#23230 opened 3 years ago by ilyaigpetrov

document that Dial/Listen with "ip4:tcp" or "ip6:tcp" fails on WindowsDocumentationNeedsFixOS-Windows

#23209 opened 3 years ago by ilyaigpetrov

a better builtin DNS stub resolverNeedsFixumbrella

#22956 opened 3 years ago by mikioh

LookupHost shows different results between GODEBUG=netdns=cgo and goNeedsFixhelp wanted

#22902 opened 3 years ago by ramspoluri

TestLookupLongTXT failingNeedsFixearly-in-cyclehelp wanted

#22857 opened 3 years ago by 0intro

clarification on the use of 0.0.0.0/8, ::/128 and ::ffff:0.0.0.0/128 as destinationNeedsInvestigationhelp wanted

#22827 opened 3 years ago by mikioh

add support for "let localhost be localhost"ProposalProposal-Hold

#22826 opened 3 years ago by mikioh

LookupHost IDN supportNeedsInvestigation

#22782 opened 3 years ago by olegrok

lookup_windows.go uses APIs that are no longer in Nano ServerNeedsInvestigationOS-Windows

#21867 opened 4 years ago by taylorb-microsoft

Buffers makes multiple Write calls on Writers that don't implement buffersWriterNeedsDecisionearly-in-cycle

#21676 opened 4 years ago by zombiezen

DialContext can use a stale context via happy eyeballsNeedsInvestigation

#21600 opened 4 years ago by tombergan

resolver should call res_init when resolv.conf changesNeedsFixProposalProposal-Acceptedearly-in-cyclehelp wanted

#21083 opened 4 years ago by oconnor663

default dialer should accept list of IPs with fallback includedFeatureRequest

#20782 opened 4 years ago by AlmogBaku

IPv6 lookup fails when IPv4 hosts entry is presentNeedsFixhelp wanted

#20327 opened 4 years ago by luke-orden

Windows test use PowerShell "getmac", not always availableOS-WindowsTesting

#20073 opened 4 years ago by bradfitz

unpredictable slowness of TestSendfile and TestOnlyWriteTimeout w/ squeezed TCP windowsPerformance

#19032 opened 4 years ago by mikioh

reconsider representation of IPGo2NeedsInvestigationProposal

#18804 opened 4 years ago by bradfitz

poor performance of Dial & friendsNeedsInvestigationPerformancehelp wanted

#18601 opened 4 years ago by nomis52

dns lookup sometimes fails with "no such host" when there are too many open filesNeedsFixhelp wanted

#18588 opened 4 years ago by josselin-c

TestTCPSelfConnect reports failure after 34 hours of stress testing.NeedsInvestigationTesting

#18290 opened 4 years ago by RLH

can {Conn,PacketConn}.Close block?DocumentationNeedsFix

#18187 opened 4 years ago by dsnet

Dial should not conceal effective errors

#18183 opened 4 years ago by mikioh

document PacketConn IO operations in relation to packet sizes DocumentationNeedsFixhelp wanted

#18056 opened 4 years ago by dsnet

TestAcceptTimeout still flakyNeedsFixTesting

#17948 opened 4 years ago by bradfitz

implement closeRead and closeWrite on Plan 9OS-Plan9

#17906 opened 4 years ago by 0intro

isDomainName rejects valid domainsNeedsDecision

#17659 opened 5 years ago by gibson042

add Buffers.ReadFrom and Buffers.Write?FeatureRequestNeedsFixhelp wanted

#17607 opened 5 years ago by rsc

remove mutex from UDP reads/writesNeedsInvestigationPerformance

#17520 opened 5 years ago by neild

add Sys field to Interface for retrieving platform-specific informationNeedsDecision

#17445 opened 5 years ago by hickeng

revisit unconditional use of cgo lookups for darwinNeedsInvestigation

#16345 opened 5 years ago by danp

add mechanism to wait for readability on a TCPConnGo2NeedsDecisionThinking

#15735 opened 5 years ago by bradfitz

use IPv4/IPv6/MAC/EUI reserved address blocks for documentationDocumentationhelp wanted

#15228 opened 5 years ago by mikioh

TestCgoLookupIP fails on brilloTesting

#14485 opened 5 years ago by rakyll

add support for FileConn, FilePacketConn, FileListener on Plan 9OS-Plan9

#13524 opened 5 years ago by mikioh

TestDialerDualStack fails with "i/o timeout" or "got 5.81849453s; want <= 95ms"NeedsInvestigationOS-OpenBSDOS-WindowsTesting

#13324 opened 5 years ago by mdempsky

more complete DNS stub resolver tests for uncommon scenarios

#13295 opened 5 years ago by danp

validate DNSSEC in Go's DNS resolver

#13279 opened 6 years ago by bradfitz

Support the /etc/resolver DNS resolution configuration hierarchy on OS XNeedsInvestigationOS-Darwinhelp wanted

#12524 opened 6 years ago by Rotonen

allow custom Resolver method implementation(s)ProposalProposal-Acceptedhelp wanted

#12503 opened 6 years ago by sajal

apply ICANN/IANA-managed semantics to IP.IsGlobalUnicast

#11772 opened 6 years ago by Mike-Joseph

Expose return values of default implementations of net.Addr.Network() as constants rather than hardcoded strings

#11731 opened 6 years ago by srinathh

FileListener doesn't work on Plan 9OS-Plan9

#10867 opened 6 years ago by mikioh

mishandling of dotted labels in domain names

#10631 opened 6 years ago by mdempsky

concurrent Accept-Close with no timeout on TCPListener defers closing underlying socket

#10527 opened 6 years ago by ggriffiniii

File method of Conn on WindowsOS-Windowshelp wanted

#10350 opened 6 years ago by vyrus001

implement multicast network interface API on NetBSDNeedsFixOS-NetBSDhelp wanted

#9670 opened 6 years ago by mikioh

implement multicast network interface API on OpenBSDOS-OpenBSDhelp wanted

#9669 opened 6 years ago by mikioh

implement multicast network interface API on DragonFly BSDOS-Dragonflyhelp wanted

#9668 opened 6 years ago by mikioh

Addr, LocalAddr, RemoteAddr must return established endpoint addressesGo2Go2CleanupProposal

#9654 opened 6 years ago by keks

setKeepAlivePeriod may be wrong on SolarisOS-Solaris

#9614 opened 6 years ago by ianlancetaylor

add support for FileConn, FilePacketConn, FileListener on windowsOS-Windowshelp wanted

#9503 opened 6 years ago by mattn

LookupSRV and search domains when name is empty

#9391 opened 6 years ago by nikhilofthesouth

should provide an interface for dialingGo2NeedsDecisionProposal

#9360 opened 6 years ago by tv42

Listen is unfriendly to multiple address families, endpoints and subflowsGo2NeedsInvestigation

#9334 opened 6 years ago by pmarks-net

TestReadFromTimeout is broken on plan9OS-Plan9

#8916 opened 7 years ago by alexbrainman

support for android without cgoOS-Androidhelp wanted

#8877 opened 7 years ago by crawshaw

Checking errors for EPIPE and ECONNRESET requires syscallThinking

#8319 opened 7 years ago by PieterD

receiving IPv4 header on raw IPv4 socketGo2Go2Cleanup

#7037 opened 7 years ago by mikioh

add SetDeadline to Listener interfaceGo2Go2Cleanup

#6892 opened 7 years ago by mikioh

add EDNS0 support to builtin DNS stub resolverThinking

#6464 opened 8 years ago by mikioh

cgoLookupIPCNAME doesn't try again for temporary failures in getaddrinfo()

#5338 opened 8 years ago by anacrolix