AdGuardHome/internal/aghnet/net_windows.go
Eugene Burkov 7528699fc2 cherry-pick: 3987 Fix nil pointer dereference
Merge in DNS/adguard-home from 3987-fix-nil-deref to master

Updates #3987.
Updates #2846.

Squashed commit of the following:

commit d653e09ce88a8b10b2a17fea1563c419895c714c
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Thu Dec 23 20:08:51 2021 +0300

    all: log changes

commit c47a4eeacf76fa7df2d01af166dee9d52528ac58
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Thu Dec 23 19:22:39 2021 +0300

    aghnet: fix windows tests

commit 9c91f14ccfe967ada3c00ddb86d673238e52c12d
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Thu Dec 23 19:09:49 2021 +0300

    aghnet: imp code readability, docs

commit d3df15d1892e4ebfe7f8ea7144e39a0c712fce52
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Thu Dec 23 18:47:28 2021 +0300

    aghnet: fix nil pointer dereference
2021-12-24 22:41:10 +03:00

46 lines
1.1 KiB
Go

//go:build !(linux || darwin || freebsd || openbsd)
// +build !linux,!darwin,!freebsd,!openbsd
package aghnet
import (
"io"
"syscall"
"time"
"github.com/AdguardTeam/AdGuardHome/internal/aghos"
"github.com/AdguardTeam/golibs/errors"
"golang.org/x/sys/windows"
)
func canBindPrivilegedPorts() (can bool, err error) {
return aghos.HaveAdminRights()
}
func ifaceHasStaticIP(string) (ok bool, err error) {
return false, aghos.Unsupported("checking static ip")
}
func ifaceSetStaticIP(string) (err error) {
return aghos.Unsupported("setting static ip")
}
// closePortChecker closes c. c must be non-nil.
func closePortChecker(c io.Closer) (err error) {
if err = c.Close(); err != nil {
return err
}
// It seems that net.Listener.Close() doesn't close file descriptors right
// away. We wait for some time and hope that this fd will be closed.
//
// TODO(e.burkov): Investigate the purpose of the line and perhaps use more
// reliable approach.
time.Sleep(100 * time.Millisecond)
return nil
}
func isAddrInUse(err syscall.Errno) (ok bool) {
return errors.Is(err, windows.WSAEADDRINUSE)
}