v       int32
		shift   int
		wantErr bool
		wantHi  int32
		wantLo  int32
	}{
		{
			v:      0,
			shift:  0,
			wantHi: 0,
			wantLo: 0,
		},
		{
			v:      0x1001,
			shift:  0,
			wantHi: 0x1000,
			wantLo: 0x1,
		},
		{
			v:      0xffffff,
			shift:  0,
			wantHi: 0xfff000,
			wantLo: 0xfff,
		},
		{
			v:       0xffffff,
			shift:   1,
			wantErr: true,
		},

var first = [256]uint8{
	//   1   2   3   4   5   6   7   8   9   A   B   C   D   E   F
	as, as, as, as, as, as, as, as, as, as, as, as, as, as, as, as, // 0x00-0x0F
	as, as, as, as, as, as, as, as, as, as, as, as, as, as, as, as, // 0x10-0x1F
	as, as, as, as, as, as, as, as, as, as, as, as, as, as, as, as, // 0x20-0x2F
	as, as, as, as, as, as, as, as, as, as, as, as, as, as, as, as, // 0x30-0x3F

	0x4d,
	0x5a,
	0x90,
	0x00,
	0x03,
	0x00,
	0x00,
	0x00,
	0x04,
	0x00,
	0x00,
	0x00,
	0xff,
	0xff,
	0x00,
	0x00,
	0x8b,
	0x00,
	0x00,
	0x00,
	0x00,
	0x00,
	0x00,
	0x00,
	0x40,
	0x00,
	0x00,
	0x00,
	0x00,
	0x00,
	0x00,
	0x00,
	0x00,
	0x00,
	0x00,
	0x00,
	0x00,
	0x00,
	0x00,
	0x00,
	0x00,

	return unsigned, signed
}

// reset clears the block with all zeros.
func (b *block) reset() {
	*b = block{}
}

type headerV7 [blockSize]byte

func (h *headerV7) name() []byte     { return h[000:][:100] }
func (h *headerV7) mode() []byte     { return h[100:][:8] }
func (h *headerV7) uid() []byte      { return h[108:][:8] }
func (h *headerV7) gid() []byte      { return h[116:][:8] }

-       case 7:								      \
-	 __u->__ui = __c * 0x01010101;					      \
-	 __u = __extension__ ((void *) __u + 4);			      \
-       case 3:								      \
-	 __u->__usi = (unsigned short int) __c * 0x0101;		      \
-	 __u = __extension__ ((void *) __u + 2);			      \
-	 __u->__uc = (unsigned char) __c;				      \
-	 break;								      \
-									      \
-       case 14:								      \

		opaqueGray       = color.NRGBA{0x99, 0x99, 0x99, 0xff}
		transparentBlue  = color.NRGBA{0x00, 0x00, 0xff, 0x00}
		transparentGreen = color.NRGBA{0x00, 0xff, 0x00, 0x00}
		transparentRed   = color.NRGBA{0xff, 0x00, 0x00, 0x00}

		opaqueGray64        = color.NRGBA64{0x9999, 0x9999, 0x9999, 0xffff}
		transparentPurple64 = color.NRGBA64{0xfedc, 0x0000, 0x7654, 0x0000}
	)

	// dst and src are 1x3 images but the dr rectangle (and hence the overlap)

			// is an error", but some real-world PNG files have out-of-range pixel
			// values. We fall back to opaque black, the same as libpng 1.5.13;
			// ImageMagick 6.5.7 returns an error.
			d.palette[i] = color.RGBA{0x00, 0x00, 0x00, 0xff}
		}
		d.palette = d.palette[:np]
	case cbTC8, cbTCA8, cbTC16, cbTCA16:
		// As per the PNG spec, a PLTE chunk is optional (and for practical purposes,

    protected static final short SMB2_WRITE = 0x0009;
    protected static final short SMB2_LOCK = 0x000A;
    protected static final short SMB2_IOCTL = 0x000B;
    protected static final short SMB2_CANCEL = 0x000C;
    protected static final short SMB2_ECHO = 0x000D;
    protected static final short SMB2_QUERY_DIRECTORY = 0x000E;
    protected static final short SMB2_CHANGE_NOTIFY = 0x000F;

	// XOR.
	if msbSet {
		double.low ^= 0xe100000000000000
	}

	return
}

var gcmReductionTable = []uint16{
	0x0000, 0x1c20, 0x3840, 0x2460, 0x7080, 0x6ca0, 0x48c0, 0x54e0,
	0xe100, 0xfd20, 0xd940, 0xc560, 0x9180, 0x8da0, 0xa9c0, 0xb5e0,
}

// mul sets y to y*H, where H is the GCM key, fixed during NewGCMWithNonceSize.
func (g *gcm) mul(y *gcmFieldElement) {

}

const (
	LOOKUP_SYMLINK_FOLLOW = 0x00000001
)

const (
	OFLAG_CREATE    = 0x0001
	OFLAG_DIRECTORY = 0x0002
	OFLAG_EXCL      = 0x0004
	OFLAG_TRUNC     = 0x0008
)

const (
	FDFLAG_APPEND   = 0x0001
	FDFLAG_DSYNC    = 0x0002
	FDFLAG_NONBLOCK = 0x0004
	FDFLAG_RSYNC    = 0x0008
	FDFLAG_SYNC     = 0x0010
)

const (
	RIGHT_FD_DATASYNC = 1 << iota
	RIGHT_FD_READ
	RIGHT_FD_SEEK