32 lines
748 B
Go
32 lines
748 B
Go
// Copyright 2019 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package poll_test
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import (
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"errors"
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"internal/poll"
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"os"
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"syscall"
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)
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func badStateFile() (*os.File, error) {
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if os.Getuid() != 0 {
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return nil, errors.New("must be root")
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}
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// Using OpenFile for a device file is an easy way to make a
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// file attached to the runtime-integrated network poller and
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// configured in halfway.
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return os.OpenFile("/dev/net/tun", os.O_RDWR, 0)
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}
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func isBadStateFileError(err error) (string, bool) {
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switch err {
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case poll.ErrNotPollable, syscall.EBADFD:
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return "", true
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default:
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return "not pollable or file in bad state error", false
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}
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}
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