defer func() {
		TestHookDidSendFile(fd, 0, written, err, written > 0)
	}()
	if fd.kind == kindPipe {
		// TransmitFile does not work with pipes
		return 0, syscall.ESPIPE
	}
	if ft, _ := syscall.GetFileType(src); ft == syscall.FILE_TYPE_PIPE {
		return 0, syscall.ESPIPE
	}

	if err := fd.writeLock(); err != nil {
		return 0, err
	}
	defer fd.writeUnlock()

	o := &fd.wop
	o.handle = src

	{24, "EMFILE", "too many open files"},
	{25, "ENOTTY", "inappropriate ioctl for device"},
	{26, "ETXTBSY", "text file busy"},
	{27, "EFBIG", "file too large"},
	{28, "ENOSPC", "no space left on device"},
	{29, "ESPIPE", "illegal seek"},
	{30, "EROFS", "read-only file system"},
	{31, "EMLINK", "too many links"},
	{32, "EPIPE", "broken pipe"},
	{33, "EDOM", "numerical argument out of domain"},

	{24, "EMFILE", "too many open files"},
	{25, "ENOTTY", "inappropriate ioctl for device"},
	{26, "ETXTBSY", "text file busy"},
	{27, "EFBIG", "file too large"},
	{28, "ENOSPC", "no space left on device"},
	{29, "ESPIPE", "illegal seek"},
	{30, "EROFS", "read-only file system"},
	{31, "EMLINK", "too many links"},
	{32, "EPIPE", "broken pipe"},
	{33, "EDOM", "numerical argument out of domain"},

	{24, "EMFILE", "too many open files"},
	{25, "ENOTTY", "inappropriate ioctl for device"},
	{26, "ETXTBSY", "text file busy"},
	{27, "EFBIG", "file too large"},
	{28, "ENOSPC", "no space left on device"},
	{29, "ESPIPE", "illegal seek"},
	{30, "EROFS", "read-only file system"},
	{31, "EMLINK", "too many links"},
	{32, "EPIPE", "broken pipe"},
	{33, "EDOM", "numerical argument out of domain"},

	if perr, ok := err.(*PathError); !ok || perr.Err != syscall.ESPIPE {
		t.Errorf("Seek returned error %v, want &PathError{Err: syscall.ESPIPE}", err)
	}
	_, err = w.Seek(0, 0)
	if err == nil {
		t.Fatal("Seek on pipe should fail")
	}
	if perr, ok := err.(*PathError); !ok || perr.Err != syscall.ESPIPE {
		t.Errorf("Seek returned error %v, want &PathError{Err: syscall.ESPIPE}", err)
	}
}

type openErrorTest struct {

	ENOTEMPTY          = Errno(136)
	ENOTTY             = Errno(137)
	ENXIO              = Errno(138)
	EPERM              = Errno(139)
	EPIPE              = Errno(140)
	EROFS              = Errno(141)
	ESPIPE             = Errno(142)
	ESRCH              = Errno(143)
	EXDEV              = Errno(144)
	E2BIG              = Errno(145)
	ELOOP              = Errno(146)
	EILSEQ             = Errno(147)

	EREMCHG         = Errno(0x52)
	EREMOTE         = Errno(0x42)
	ERESTART        = Errno(0x5b)
	EROFS           = Errno(0x1e)
	ESHUTDOWN       = Errno(0x8f)
	ESOCKTNOSUPPORT = Errno(0x79)
	ESPIPE          = Errno(0x1d)
	ESRCH           = Errno(0x3)
	ESRMNT          = Errno(0x45)
	ESTALE          = Errno(0x97)
	ESTRPIPE        = Errno(0x5c)
	ETIME           = Errno(0x3e)
	ETIMEDOUT       = Errno(0x91)

	ENOTTY      = syscall.Errno(0x19)
	ENXIO       = syscall.Errno(0x6)
	EPERM       = syscall.Errno(0x1)
	EPIPE       = syscall.Errno(0x20)
	ERANGE      = syscall.Errno(0x22)
	EROFS       = syscall.Errno(0x1e)
	ESPIPE      = syscall.Errno(0x1d)
	ESRCH       = syscall.Errno(0x3)
	ETXTBSY     = syscall.Errno(0x1a)
	EWOULDBLOCK = syscall.Errno(0xb)
	EXDEV       = syscall.Errno(0x12)
)

// Signals
const (