static char base64table[64] = {

  'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',

  'P',

  'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', 'e',

  'f',

  'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u',

  'v',

  'w', 'x', 'y', 'z', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '+', '/'

};

#ifdef __SYMBIAN32__

EXPORT_C

#endif

  gchar *out = g_malloc (len * 4 / 3 + 4);

  gchar *result = out;

  int chunk;

  while (len > 0) {

    chunk = (len > 3) ? 3 : len;

    *out++ = base64table[(*data & 0xFC) >> 2];

    *out++ = base64table[((*data & 0x03) << 4) | ((*(data + 1) & 0xF0) >> 4)];

    switch (chunk) {

      case 3:

        *out++ =

            base64table[((*(data + 1) & 0x0F) << 2) | ((*(data +

                        2) & 0xC0) >> 6)];

        *out++ = base64table[(*(data + 2)) & 0x3F];

        break;

      case 2:

        *out++ = base64table[((*(data + 1) & 0x0F) << 2)];

        *out++ = '=';

        break;

      case 1:

        *out++ = '=';

        *out++ = '=';

        break;

    }

    data += chunk;

    len -= chunk;

  }

  *out = 0;

  return result;

  char dtable[256];

  int i, j, k = 0, n = strlen (data);

  for (i = 0; i < 255; i++)

    dtable[i] = 0x80;

  for (i = 'A'; i <= 'Z'; i++)

    dtable[i] = 0 + (i - 'A');

  for (i = 'a'; i <= 'z'; i++)

    dtable[i] = 26 + (i - 'a');

  for (i = '0'; i <= '9'; i++)

    dtable[i] = 52 + (i - '0');

  dtable['+'] = 62;

  dtable['/'] = 63;

  dtable['='] = 0;

  for (j = 0; j < n; j += 4) {

    char a[4], b[4];

    for (i = 0; i < 4; i++) {

      int c = data[i + j];

      if (dtable[c] & 0x80) {

        if (len)

          *len = 0;

        return;

      }

      a[i] = (char) c;

      b[i] = (char) dtable[c];

    }

    data[k++] = (b[0] << 2) | (b[1] >> 4);

    data[k++] = (b[1] << 4) | (b[2] >> 2);

    data[k++] = (b[2] << 6) | b[3];

    i = a[2] == '=' ? 1 : (a[3] == '=' ? 2 : 3);

    if (i < 3) {

      data[k] = 0;

      if (len)

        *len = k;

      return;

    }

  }

  data[k] = 0;

    *len = k;

  return;