if err != nil {
			return fmt.Errorf("cannot create directory %s: %s", currentPath, err)
		}
		// Dive into the created directory
		childFD, err = syscall.Openat(parentFD, dir, nofollowFlags|unix.O_CLOEXEC, 0)
		if err != nil {
			return fmt.Errorf("cannot open %s: %s", currentPath, err)
		}
		// We can be sure that childFD is safe to use. It could be changed
		// by user after Mkdirat() and before Openat(), however:

pkg syscall (freebsd-386), const DLT_MATCHING_MAX = 242
pkg syscall (freebsd-386), const ELAST = 94
pkg syscall (freebsd-386), const ImplementsGetwd = false
pkg syscall (freebsd-386), const O_CLOEXEC = 0
pkg syscall (freebsd-386), func Fchflags(string, int) error
pkg syscall (freebsd-386), func Mknod(string, uint32, int) error
pkg syscall (freebsd-386), type Dirent struct, Fileno uint32

		}
	}

	var (
		r int
		s poll.SysFile
		e error
	)
	// We have to check EINTR here, per issues 11180 and 39237.
	ignoringEINTR(func() error {
		r, s, e = open(name, flag|syscall.O_CLOEXEC, syscallMode(perm))
		return e
	})
	if e != nil {
		return nil, &PathError{Op: "open", Path: name, Err: e}
	}

	// open(2) itself won't handle the sticky bit on *BSD and Solaris
	if setSticky {

}

func PtraceSingleStep(pid int) (err error) {
	return ptrace(PT_STEP, pid, 1, 0)
}

func Dup3(oldfd, newfd, flags int) error {
	if oldfd == newfd || flags&^O_CLOEXEC != 0 {
		return EINVAL
	}
	how := F_DUP2FD
	if flags&O_CLOEXEC != 0 {
		how = F_DUP2FD_CLOEXEC
	}
	_, err := fcntl(oldfd, how, newfd)
	return err
}

/*
 * Exposed directly
 */

		_, _, err1 = RawSyscall(SYS_DUP3, uintptr(pipe), uintptr(nextfd), O_CLOEXEC)
		if err1 != 0 {
			goto childerror
		}
		pipe = nextfd
		nextfd++
	}
	for i = 0; i < len(fd); i++ {
		if fd[i] >= 0 && fd[i] < i {
			if nextfd == pipe { // don't stomp on pipe
				nextfd++
			}
			_, _, err1 = RawSyscall(SYS_DUP3, uintptr(fd[i]), uintptr(nextfd), O_CLOEXEC)
			if err1 != 0 {
				goto childerror
			}

		isDevice = true
	}

	if !isDevice {
		klog.Errorf("Path %q is not referring to a device.", pathname)
		return false, nil
	}
	fd, errno := unix.Open(pathname, unix.O_RDONLY|unix.O_EXCL|unix.O_CLOEXEC, 0)
	// If the device is in use, open will return an invalid fd.
	// When this happens, it is expected that Close will fail and throw an error.
	defer unix.Close(fd)
	if errno == nil {
		// device not in use

	"time"
)

func TestEPIPE(t *testing.T) {
	// This test cannot be run in parallel because of a race similar
	// to the one reported in https://go.dev/issue/22315.
	//
	// Even though the pipe is opened with O_CLOEXEC, if another test forks in
	// between the call to os.Pipe and the call to r.Close, that child process can
	// retain an open copy of r's file descriptor until it execs. If one of our

	if name == "" {
		return nil, &PathError{Op: "open", Path: name, Err: syscall.ENOENT}
	}
	path := fixLongPath(name)
	r, e := syscall.Open(path, flag|syscall.O_CLOEXEC, syscallMode(perm))
	if e != nil {
		// We should return EISDIR when we are trying to open a directory with write access.
		if e == syscall.ERROR_ACCESS_DENIED && (flag&O_WRONLY != 0 || flag&O_RDWR != 0) {

	OTPLOCK                          = 0x400c4d10
	OTPSELECT                        = 0x40044d0d
	O_APPEND                         = 0x8
	O_ASYNC                          = 0x1000
	O_CLOEXEC                        = 0x80000
	O_CREAT                          = 0x100
	O_DIRECT                         = 0x8000
	O_DIRECTORY                      = 0x10000
	O_DSYNC                          = 0x10

			return
		}
	}
	RawSyscall(SYS_CLOSE, uintptr(n), 0, 0)
}

func cexecPipe(p []int) error {
	e := Pipe(p)
	if e != nil {
		return e
	}

	fd, e := Open("#d/"+itoa.Itoa(p[1]), O_RDWR|O_CLOEXEC)
	if e != nil {
		Close(p[0])
		Close(p[1])
		return e
	}

	Close(p[1])
	p[1] = fd
	return nil
}

type envItem struct {
	name   *byte
	value  *byte
	nvalue int
}