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The Go programming language
fca335e91a
crypto/tls has two functions for creating a client connection: Dial, which most users are expected to use, and Client, which is the lower-level API. Dial does what you expect: it gives you a secure connection to the host that you specify and the majority of users of crypto/tls appear to work fine with it. Client gives more control but needs more care. Specifically, if it wasn't given a server name in the tls.Config then it didn't check that the server's certificates match any hostname - because it doesn't have one to check against. It was assumed that users of the low-level API call VerifyHostname on the certificate themselves if they didn't supply a hostname. A review of the uses of Client both within Google and in a couple of external libraries has shown that nearly all of them got this wrong. Thus, this change enforces that either a ServerName or InsecureSkipVerify is given. This does not affect tls.Dial. See discussion at https://groups.google.com/d/msg/golang-nuts/4vnt7NdLvVU/b1SJ4u0ikb0J. Fixes #7342. LGTM=bradfitz R=golang-codereviews, bradfitz CC=golang-codereviews https://golang.org/cl/67010043 |
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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-source.html
in your web browser.
After installing Go, you can view a nicely formatted
doc/install-source.html by running godoc --http=:6060
and then visiting http://localhost:6060/doc/install/source.
Unless otherwise noted, the Go source files are distributed
under the BSD-style license found in the LICENSE file.
--
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.