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24 lines
595 B
Go
24 lines
595 B
Go
// Copyright 2014 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 os
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import "syscall"
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// supportsCloseOnExec reports whether the platform supports the
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// O_CLOEXEC flag.
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var supportsCloseOnExec bool
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func init() {
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osrel, err := syscall.SysctlUint32("kern.osreldate")
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if err != nil {
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return
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}
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// The O_CLOEXEC flag was introduced in FreeBSD 8.3.
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// See http://www.freebsd.org/doc/en/books/porters-handbook/freebsd-versions.html.
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if osrel >= 803000 {
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supportsCloseOnExec = true
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}
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}
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