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Michael Hendricks f262eed960 [release-branch.go1.13] net: avoid an infinite loop in LookupAddr
If a request for a PTR record returned a response with a non-PTR
answer, goLookupPTR would loop forever.  Skipping non-PTR answers
guarantees progress through the DNS response.

Fixes #34662
Updates #34660

Change-Id: I56f9d21e5342d07e7d843d253267e93a29707904
Reviewed-on: https://go-review.googlesource.com/c/go/+/198460
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
(cherry picked from commit f0e940ebc9)
Reviewed-on: https://go-review.googlesource.com/c/go/+/198489
Reviewed-by: Michael Hendricks <michael@ndrix.org>
Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>
2019-10-03 02:07:28 +00:00
.github .github: don't render author-facing text in ISSUE_TEMPLATE 2018-11-02 04:47:34 +00:00
api api/go1.13: add debug/elf.Symbol fields added in CL 184099 2019-08-08 18:44:16 +00:00
doc [release-branch.go1.13] net/http, doc/go1.13.html: revert TimeoutHandler.Flush 2019-09-27 03:17:38 +00:00
lib/time lib/time: update tz data to 2019b 2019-07-03 23:08:27 +00:00
misc cmd/go: include GOEXPERIMENT flags in tool id for cache key 2019-07-17 22:57:03 +00:00
src [release-branch.go1.13] net: avoid an infinite loop in LookupAddr 2019-10-03 02:07:28 +00:00
test cmd/link: increase the function call limit in stkcheck 2019-08-09 20:22:03 +00:00
.gitattributes
.gitignore .gitignore: ignore src/cmd/dist/dist 2017-10-28 21:55:49 +00:00
AUTHORS A: Add Maya Rashish (individual CLA) 2019-04-23 14:40:30 +00:00
CONTRIBUTING.md all: restore changes from faulty merge/revert 2018-02-12 20:13:59 +00:00
CONTRIBUTORS [release-branch.go1.13] CONTRIBUTORS: second round of updates for Go 1.13 2019-08-28 23:04:55 +00:00
LICENSE
PATENTS
README.md README: linkify some paths 2018-06-06 18:07:01 +00:00
SECURITY.md SECURITY.md: add security file 2019-05-23 21:22:44 +00:00
VERSION [release-branch.go1.13-security] go1.13.1 2019-09-25 18:48:17 +00:00
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README.md

The Go Programming Language

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