// 2.  Let mHash = Hash(M), an octet string of length hLen.

	if len(mHash) != hLen {
		return nil, errors.New("crypto/rsa: input must be hashed with given hash")
	}

	// 3.  If emLen < hLen + sLen + 2, output "encoding error" and stop.

	if emLen < hLen+sLen+2 {
		return nil, ErrMessageTooLong
	}

	em := make([]byte, emLen)
	psLen := emLen - sLen - hLen - 2
	db := em[:psLen+1+sLen]
	h := em[psLen+1+sLen : emLen-1]

	return as, nil
}

func parseLinkAddr(b []byte) ([]byte, error) {
	nlen, alen, slen := int(b[1]), int(b[2]), int(b[3])
	l := 4 + nlen + alen + slen
	if len(b) < l {
		return nil, errors.New("invalid address")
	}
	b = b[4:]
	var addr []byte
	if nlen > 0 {
		b = b[nlen:]
	}
	if alen > 0 {
		addr = make([]byte, alen)
		copy(addr, b[:alen])
	}
	return addr, nil

      }

      // Copy the replacement string into the dest buffer as needed.
      if (rlen > 0) {
        System.arraycopy(r, 0, dest, destIndex, rlen);
        destIndex += rlen;
      }
      lastEscape = index + 1;
    }

    // Copy leftover characters if there are any.
    int charsLeft = slen - lastEscape;
    if (charsLeft > 0) {
      int sizeNeeded = destIndex + charsLeft;

    public RC4(byte[] key)
    {
        init(key, 0, key.length);
    }

    public void init(byte[] key, int ki, int klen)
    {
        s = new byte[256];

        for (i = 0; i < 256; i++)
            s[i] = (byte)i;

        for (i = j = 0; i < 256; i++) {
            j = (j + key[ki + i % klen] + s[i]) & 0xff;
            byte t = s[i];
            s[i] = s[j];
            s[j] = t;
        }

	type linkLayerAddr struct {
		Type byte
		Nlen byte
		Alen byte
		Slen byte
	}
	lla := (*linkLayerAddr)(unsafe.Pointer(&b[0]))
	l := 4 + int(lla.Nlen) + int(lla.Alen) + int(lla.Slen)
	if len(b) < l {
		return nil, 0, EINVAL
	}
	b = b[4:]
	sa := &SockaddrDatalink{Type: lla.Type, Nlen: lla.Nlen, Alen: lla.Alen, Slen: lla.Slen}
	for i := 0; len(sa.Data) > i && i < l-4; i++ {
		sa.Data[i] = int8(b[i])
	}

	rval := uint32(0)
	stw.tmp = stw.tmp[:0]
	stw.tmp = uleb128.AppendUleb128(stw.tmp, uint(len(stw.strs)))
	rval += uint32(len(stw.tmp))
	for _, s := range stw.strs {
		stw.tmp = stw.tmp[:0]
		slen := uint(len(s))
		stw.tmp = uleb128.AppendUleb128(stw.tmp, slen)
		rval += uint32(len(stw.tmp)) + uint32(slen)
	}
	return rval
}

// Write writes the string table in serialized form to the specified
// io.Writer.

      }

      // Copy the replacement string into the dest buffer as needed.
      if (rlen > 0) {
        System.arraycopy(r, 0, dest, destIndex, rlen);
        destIndex += rlen;
      }
      lastEscape = index + 1;
    }

    // Copy leftover characters if there are any.
    int charsLeft = slen - lastEscape;
    if (charsLeft > 0) {
      int sizeNeeded = destIndex + charsLeft;

func Atoi(s string) (int, error) {
	const fnAtoi = "Atoi"

	sLen := len(s)
	if intSize == 32 && (0 < sLen && sLen < 10) ||
		intSize == 64 && (0 < sLen && sLen < 19) {
		// Fast path for small integers that fit int type.
		s0 := s
		if s[0] == '-' || s[0] == '+' {
			s = s[1:]
			if len(s) < 1 {
				return 0, syntaxError(fnAtoi, s0)
			}
		}

		n := 0

	}

	sLen := r.uint64()
	dLen := r.uint64()

	if sLen > math.MaxUint64-dLen {
		errorf("lengths out of range (%d, %d)", sLen, dLen)
	}

	data, err := saferio.ReadData(r, sLen+dLen)
	if err != nil {
		errorf("cannot read %d bytes of stringData and declData: %s", sLen+dLen, err)
	}
	stringData := data[:sLen]
	declData := data[sLen:]

	p := iimporter{

	// care".
	nlen, alen, slen := int(b[1]), int(b[2]), int(b[3])
	if nlen == 0xff {
		nlen = 0
	}
	if alen == 0xff {
		alen = 0
	}
	if slen == 0xff {
		slen = 0
	}
	l := 4 + nlen + alen + slen
	if len(b) < l {
		return 0, nil, errInvalidAddr
	}
	data := b[4:]
	var name string
	var addr []byte
	if nlen > 0 {
		name = string(data[:nlen])