void DecodeStatisticsDat(const CFileDataIO& file)
{
uint8_t version = file.ReadUInt8();
cout << "Version : " << (unsigned)version << '\n';
if (version == 0) {
uint64_t tmp = file.ReadUInt64();
cout << "Total sent bytes : " << tmp << " (" << CastItoXBytes(tmp) << ")\n";
tmp = file.ReadUInt64();
cout << "Total received bytes : " << tmp << " (" << CastItoXBytes(tmp) << ")\n";
}
}
CTag::CTag(const CFileDataIO& data, bool bOptUTF8)
{
// Zero variables to allow for safe deletion
m_uType = m_uName = m_nSize = m_uVal = 0;
m_pData = NULL;
try {
m_uType = data.ReadUInt8();
if (m_uType & 0x80) {
m_uType &= 0x7F;
m_uName = data.ReadUInt8();
} else {
uint16 length = data.ReadUInt16();
if (length == 1) {
m_uName = data.ReadUInt8();
} else {
m_uName = 0;
m_Name = data.ReadOnlyString(utf8strNone,length);
}
}
// NOTE: It's very important that we read the *entire* packet data,
// even if we do not use each tag. Otherwise we will get in trouble
// when the packets are returned in a list - like the search results
// from a server. If we cannot do this, then we throw an exception.
switch (m_uType) {
case TAGTYPE_STRING:
m_pstrVal = new wxString(data.ReadString(bOptUTF8));
break;
case TAGTYPE_UINT32:
m_uVal = data.ReadUInt32();
break;
case TAGTYPE_UINT64:
m_uVal = data.ReadUInt64();
break;
case TAGTYPE_UINT16:
m_uVal = data.ReadUInt16();
m_uType = TAGTYPE_UINT32;
break;
case TAGTYPE_UINT8:
m_uVal = data.ReadUInt8();
m_uType = TAGTYPE_UINT32;
break;
case TAGTYPE_FLOAT32:
//#warning Endianess problem?
data.Read(&m_fVal, 4);
break;
case TAGTYPE_HASH16:
m_hashVal = new CMD4Hash(data.ReadHash());
break;
case TAGTYPE_BOOL:
printf("***NOTE: %s; Reading BOOL tag\n", __FUNCTION__);
data.ReadUInt8();
break;
case TAGTYPE_BOOLARRAY: {
printf("***NOTE: %s; Reading BOOL Array tag\n", __FUNCTION__);
uint16 len = data.ReadUInt16();
// 07-Apr-2004: eMule versions prior to 0.42e.29 used the formula "(len+7)/8"!
//#warning This seems to be off by one! 8 / 8 + 1 == 2, etc.
data.Seek((len / 8) + 1, wxFromCurrent);
break;
}
case TAGTYPE_BLOB:
// 07-Apr-2004: eMule versions prior to 0.42e.29 handled the "len" as int16!
m_nSize = data.ReadUInt32();
// Since the length is 32b, this check is needed to avoid
// huge allocations in case of bad tags.
if (m_nSize > data.GetLength() - data.GetPosition()) {
throw CInvalidPacket(wxT("Malformed tag"));
}
m_pData = new unsigned char[m_nSize];
data.Read(m_pData, m_nSize);
break;
default:
if (m_uType >= TAGTYPE_STR1 && m_uType <= TAGTYPE_STR16) {
uint8 length = m_uType - TAGTYPE_STR1 + 1;
m_pstrVal = new wxString(data.ReadOnlyString(bOptUTF8, length));
m_uType = TAGTYPE_STRING;
} else {
// Since we cannot determine the length of this tag, we
// simply have to abort reading the file.
throw CInvalidPacket(CFormat(wxT("Unknown tag type encounted %x, cannot proceed!")) % m_uType);
}
}
} catch (...) {
if (m_uType == TAGTYPE_BLOB) {
delete[] m_pData;
}
throw;
}
}
