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net: update doc for unimplemented feature on Plan 9

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Also removes unnecessary allocation.

Change-Id: I3406cf75a7b64d93b2b99c7f1f5c78f580452b60
Reviewed-on: https://go-review.googlesource.com/30891
Run-TryBot: Mikio Hara <mikioh.mikioh@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Mikio Hara 2016-10-12 19:41:29 +09:00 committed by Brad Fitzpatrick
parent 29c600bba1
commit 8fc9c50496
2 changed files with 4 additions and 5 deletions
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4
src/net/interface.go
View file

@ -13,8 +13,8 @@ import (
// BUG(mikio): On NaCl, methods and functions related to
// Interface are not implemented.
// BUG(mikio): On DragonFly BSD, NetBSD, OpenBSD and Solaris, the
// MulticastAddrs method of Interface is not implemented.
// BUG(mikio): On DragonFly BSD, NetBSD, OpenBSD, Plan 9 and Solaris,
// the MulticastAddrs method of Interface is not implemented.
var (
errInvalidInterface = errors.New("invalid network interface")

5
src/net/interface_plan9.go
View file

@ -132,7 +132,7 @@ func interfaceCount() (int, error) {
// network interfaces. Otherwise it returns addresses for a specific
// interface.
func interfaceAddrTable(ifi *Interface) ([]Addr, error) {
ifcs := []Interface{}
var ifcs []Interface
if ifi == nil {
var err error
ifcs, err = interfaceTable(0)
@ -177,8 +177,7 @@ func interfaceAddrTable(ifi *Interface) ([]Addr, error) {
if !ok {
return nil, errors.New("cannot parse network mask for interface: " + status)
}
mask := CIDRMask(int(pfxlen), 128)
var mask IPMask
if ip.To4() != nil { // IPv4 or IPv6 IPv4-mapped address
mask = CIDRMask(pfxlen-8*len(v4InV6Prefix), 8*IPv4len)
}