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doc/go1.20: add release notes for net package 

For #50101
For #51152
For #53482
For #55301
For #56515

Change-Id: I11edeb4be0a7f80fb72fd7680a3407d081f83b8b
Reviewed-on: https://go-review.googlesource.com/c/go/+/451420
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Damien Neil <dneil@google.com>
Run-TryBot: Damien Neil <dneil@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
This commit is contained in:
Damien Neil 2022-11-18 10:57:46 -08:00 committed by Gopher Robot
parent f263d9cd93
commit 6fc1f4f906
1 changed files with 24 additions and 17 deletions
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@ -547,35 +547,42 @@ proxyHandler := &httputil.ReverseProxy{
<dl id="net"><dt><a href="/pkg/net/">net</a></dt>
<dd>
<p><!-- https://go.dev/issue/50101 -->
TODO: <a href="https://go.dev/issue/50101">https://go.dev/issue/50101</a>: make LookupCNAME consistent between Unix and Windows, document
The <code>LookupCNAME</code> function now consistently returns the contents
of a <code>CNAME</code> record when one exists. Previously on Unix systems and
when using the pure Go resolver, <code>LookupCNAME</code> would return an error
if a <code>CNAME</code> record referred to a name that with no <code>A</code>,
</code>AAAA</code>, or <code>CNAME</code> record. This change modifies
<code>LookupCNAME</code> to match the previous behavior on Windows,
allowing allowing <code>LookupCNAME</code> to succeed whenever a
<code>CNAME</code> exists.
</p>
<p><!-- https://go.dev/issue/53482 -->
TODO: <a href="https://go.dev/issue/53482">https://go.dev/issue/53482</a>: add FlagRunning to the Flags of struct Interface, to exactly reflect the states of an interface or NIC
<code>Interface.Flags</code> now includes the new flag <code>FlagRunning</code>,
indicating an operationally active interface. An interface which is administratively
configured but not active (for example, because the network cable is not connected)
will have <code>FlagUp</code> set but not <code>FlagRunning</code>.
</p>
<p><!-- https://go.dev/issue/55301 -->
TODO: <a href="https://go.dev/issue/55301">https://go.dev/issue/55301</a>: Add ControlContext to Dialer
</p>
<p><!-- CL 413454 -->
TODO: <a href="https://go.dev/cl/413454">https://go.dev/cl/413454</a>: net: add FlagRunning to exactly reflect the states of an interface.; modified api/next/53482.txt
The new <code>Dialer.ControlContext</code> field contains a callback function
similar to the existing <code>Dialer.Control</code> hook, that additionally
accepts the dial context as a parameter.
<code>Control</code> is ignored when <code>ControlContext</code> is not nil.
</p>
<p><!-- CL 428955 -->
TODO: <a href="https://go.dev/cl/428955">https://go.dev/cl/428955</a>: net: set AD bit in DNS queries when trust-ad in resolv.conf
</p>
<p><!-- CL 444955 -->
TODO: <a href="https://go.dev/cl/444955">https://go.dev/cl/444955</a>: net: add ControlContext to Dialer; modified api/next/55301.txt
</p>
<p><!-- CL 446179 -->
TODO: <a href="https://go.dev/cl/446179">https://go.dev/cl/446179</a>: net: unify CNAME handling across ports
The Go DNS resolver recognizes the <code>trust-ad</code> resolver option.
When <code>options trust-ad</code> is set in <code>resolv.conf</code>,
the Go resolver will set the AD bit in DNS queries. The resolver does not
make use of the AD bit in responses.
</p>
<p><!-- CL 448075 -->
TODO: <a href="https://go.dev/cl/448075">https://go.dev/cl/448075</a>: net: auto-reload the /etc/nsswitch.conf on unix systems
DNS resolution will detect changes to <code>/etc/nsswitch.conf</code>
and reload the file when it changes. Checks are made at most once every
five seconds, matching the previous handling of <code>/etc/hosts</code>
and <code>/etc/resolv.conf</code>.
</p>
</dd>
</dl><!-- net -->