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NetVars.cpp
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NetVars.cpp
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// Credits to Valve and Shad0w
#include "NetVars.h"
#include "ClientRecvProps.h"
#include "CRC32.h"
#include "Utilities.h"
#include "SDK.h"
using namespace std;
CNetVar NetVar;
const char* AlignText(int align)
{
static char buffer[256];
int i = 0;
for (i = 0; i < align; i++)
{
buffer[i] = ' ';
}
buffer[i + 1] = 0;
return buffer;
}
void CNetVar::RetrieveClasses()
{
#ifdef DUMP_NETVARS_TO_FILE
U::EnableLogFile(NETVAR_FILENAME);
#endif
ClientClass *clientClass = Interfaces::Client->GetAllClasses();
if (!clientClass)
return;
//Clear netvar vector incase of another call, not necesarry as it doesnt add duplicates
vars.clear();
while (clientClass != 0)
{
if (clientClass == 0)
break;
LogNetVar(clientClass->m_pRecvTable, 0);
clientClass = clientClass->m_pNext;
}
}
void CNetVar::LogNetVar(RecvTable *table, int align)
{
if (table->m_nProps < 0)
return;
#ifdef DUMP_NETVARS_TO_FILE
if (align)
U::Log("%s===%s===", AlignText(20 + align), table->m_pNetTableName);
else
U::Log(table->m_pNetTableName);
#endif
for (auto i = 0; i < table->m_nProps; ++i)
{
RecvProp *prop = &table->m_pProps[i];
if (!prop)
continue;
char szCRC32[150];
sprintf_s(szCRC32, "%s%s", table->m_pNetTableName, prop->m_pVarName);
DWORD_PTR dwCRC32 = CRC32((void*)szCRC32, strlen(szCRC32));
#ifdef DUMP_NETVARS_TO_FILE
U::Log("%s%s [0x%X] [CRC32::0x%X]", AlignText(15 + align), prop->m_pVarName, prop->m_Offset, dwCRC32);
#endif
//Dont add duplicates
bool bAddNetVar = true;
for (auto netvar = 0; netvar < (int)vars.size(); ++netvar)
{
netvar_info_s *netvars = &vars[netvar];
if (netvars->dwCRC32 == dwCRC32)
bAddNetVar = false;
#ifdef DUMP_NETVARS_TO_FILE
if (netvars->dwCRC32 == dwCRC32 && netvars->dwOffset != prop->m_Offset) //just a test if any crc collide with another (didnt happen obviously)
{
U::Log("^^^^ ERROR HASH %s%s::%s [0x%X] [CRC32::0x%X] ^^^^", AlignText(15 + align), table->m_pNetTableName, prop->m_pVarName, prop->m_Offset, dwCRC32);
U::Log("^^^^ CONFLICT %s%s::%s [0x%X] [CRC32::0x%X] ^^^^", AlignText(15 + align), netvars->szTableName, netvars->szPropName, netvars->dwOffset, netvars->dwCRC32);
}
#endif
}
if (bAddNetVar) //avoid adding duplicates (faster lookup)
{
netvar_info_s tmp;
#ifdef DUMP_NETVARS_TO_FILE
strcpy_s(tmp.szTableName, table->m_pNetTableName);
strcpy_s(tmp.szPropName, prop->m_pVarName);
#endif
tmp.dwCRC32 = dwCRC32;
tmp.dwOffset = prop->m_Offset;
vars.push_back(tmp);
}
if (prop->m_pDataTable)
LogNetVar(prop->m_pDataTable, 5);
}
}
DWORD_PTR CNetVar::GetNetVar(DWORD_PTR dwCRC32) //returns 0xFFFFFFFF (-1) if not found (ex: if(GetNetVar(0xD34DB33F)==-1) return false;
{
for (auto i = 0; i < (int)vars.size(); ++i)
{
if (vars[i].dwCRC32 == dwCRC32)
return vars[i].dwOffset;
}
return 0xFFFFFFFF;
}