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