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The Go programming language
16dbf2182c
Using the getaddrinfo order is only okay if we
are smart enough to try multiple addresses in Dial.
Since the code does not do that, we must make
the right first choice, regardless of what getaddrinfo
does, and more often that not that means using the
IPv4 address, even on IPv6 systems. With the CL
applied, gotest fails in package net on OS X.
helix.cam=; gotest
...
--- FAIL: net.TestDialGoogleIPv4 (1.05 seconds)
-- 74.125.226.179:80 --
-- www.google.com:80 --
Dial("tcp", "", "www.google.com:80") = _, dial tcp [2001:4860:800f::69]:80: address family not supported by protocol family
-- 74.125.226.179:http --
-- www.google.com:http --
Dial("tcp", "", "www.google.com:http") = _, dial tcp [2001:4860:800f::69]:80: address family not supported by protocol family
-- 074.125.226.179:0080 --
-- [::ffff:74.125.226.179]:80 --
-- [::ffff:4a7d:e2b3]:80 --
-- [0:0:0:0:0000:ffff:74.125.226.179]:80 --
-- [0:0:0:0:000000:ffff:74.125.226.179]:80 --
-- [0:0:0:0:0:ffff::74.125.226.179]:80 --
FAIL
gotest: "./6.out" failed: exit status 1
««« original CL description
net: name-based destination address selection
getaddrinfo() orders the addresses according to RFC 3484.
This means when IPv6 is working on a host we get results like:
[]string = {"2001:4810::110", "66.117.47.214"}
and when it's not working we get:
[]string = {"66.117.47.214", "2001:4810::110"}
thus can drop firstFavoriteAddr.
This also means /etc/gai.conf works on relevant systems.
R=rsc, mikioh.mikioh
CC=golang-dev
https://golang.org/cl/4557058
»»»
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/4532101
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This is the source code repository for the Go programming language.
For documentation about how to install and use Go,
visit http://golang.org/ or load doc/install.html in your web browser.
After installing Go, you can view a nicely formatted
doc/install.html by running godoc --http=:6060
and then visiting http://localhost:6060/doc/install.html.
Unless otherwise noted, the Go source files are distributed
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--
Binary Distribution Notes
If you have just untarred a binary Go distribution, you need to set
the environment variable $GOROOT to the full path of the go
directory (the one containing this README). You can omit the
variable if you unpack it into /usr/local/go, or if you rebuild
from sources by running all.bash (see doc/install.html).
You should also add the Go binary directory $GOROOT/bin
to your shell's path.
For example, if you extracted the tar file into $HOME/go, you might
put the following in your .profile:
export GOROOT=$HOME/go
export PATH=$PATH:$GOROOT/bin
See doc/install.html for more details.