mirror of https://github.com/golang/go.git
31 lines
610 B
Go
31 lines
610 B
Go
// Copyright 2011 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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//go:build unix
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package net
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import (
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"internal/poll"
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"os"
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"syscall"
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)
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const _SO_TYPE = syscall.SO_TYPE
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func dupFileSocket(f *os.File) (int, error) {
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s, call, err := poll.DupCloseOnExec(int(f.Fd()))
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if err != nil {
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if call != "" {
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err = os.NewSyscallError(call, err)
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}
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return -1, err
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}
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if err := syscall.SetNonblock(s, true); err != nil {
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poll.CloseFunc(s)
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return -1, os.NewSyscallError("setnonblock", err)
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}
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return s, nil
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}
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