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tailscale/wgengine/tsdns/neterr_windows.go

30 lines
676 B
Go

// Copyright (c) 2020 Tailscale Inc & AUTHORS All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package tsdns
import (
"net"
"os"
"golang.org/x/sys/windows"
)
func networkIsDown(err error) bool {
if oe, ok := err.(*net.OpError); ok && oe.Op == "write" {
if se, ok := oe.Err.(*os.SyscallError); ok {
if se.Syscall == "wsasendto" && se.Err == windows.WSAENETUNREACH {
return true
}
}
}
return false
}
func networkIsUnreachable(err error) bool {
// TODO(bradfitz,josharian): something here? what is the
// difference between down and unreachable? Add comments.
return false
}