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go / go / 19619c21c36d1695000f5b798241971dfdb2cc2d
commit19619c21c36d1695000f5b798241971dfdb2cc2d[log] [tgz]
authorTom Bergan <tombergan@google.com>Thu May 12 22:03:46 2016 -0700
committerBrad Fitzpatrick <bradfitz@golang.org>Sat May 14 00:14:25 2016 +0000
tree0551c88831dbaec9930fd945d345f6cc7d06720b
parent0cc710dca63b79ed2dd6ce9375502e76e5fc0484 [diff]
net, net/http: don't trace DNS dials

This fixes change https://go-review.googlesource.com/#/c/23069/, which
assumes all DNS requests are UDP. This is not true -- DNS requests can
be TCP in some cases. See:
https://tip.golang.org/src/net/dnsclient_unix.go#L154
https://en.wikipedia.org/wiki/Domain_Name_System#Protocol_transport

Also, the test code added by the above change doesn't actually test
anything because the test uses a faked DNS resolver that doesn't
actually make any DNS queries. I fixed that by adding another test
that uses the system DNS resolver.

Updates #12580

Change-Id: I6c24c03ebab84d437d3ac610fd6eb5353753c490
Reviewed-on: https://go-review.googlesource.com/23101
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
3 files changed
tree: 0551c88831dbaec9930fd945d345f6cc7d06720b
  1. .github/
  2. api/
  3. doc/
  4. lib/
  5. misc/
  6. src/
  7. test/
  8. .gitattributes
  9. .gitignore
  10. AUTHORS
  11. CONTRIBUTING.md
  12. CONTRIBUTORS
  13. favicon.ico
  14. LICENSE
  15. PATENTS
  16. README.md
  17. robots.txt
README.md

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