gistfile1.c

#include <windows.h>
#include <stdio.h>
#include "Detour\CDetour.h"


DWORD dwClientNode_SendChatAddress = 0x0082D560;
DWORD dwClientNode_ShowChatAddress = dwClientNode_SendChatAddress + 0x110;
PDWORD pClientNodeInstance;

CDetour ClientNode_SendChatDet;

BYTE ShowChatOrg[] = { 0x83, 0x7E, 0x2C}; 
BYTE ShowChatFix[] = { 0xC2, 0x0C, 0x00};

void AppendShowChat(bool bFix = true)
{
DWORD dwOldProtect;

VirtualProtect((LPVOID)dwClientNode_ShowChatAddress, 3, PAGE_EXECUTE_READWRITE, &dwOldProtect);
for (int i = 0; i < 3; ++i)
{
 if (bFix)
 	*(PBYTE)(dwClientNode_ShowChatAddress+ i) = ShowChatFix[i];
 else
 	*(PBYTE)(dwClientNode_ShowChatAddress+ i) = ShowChatOrg[i];
}
}

#define START_GAME ""
int nSleep = 5;

void WINAPI ClientNode_SendChat(char* szMessage)
{
if (!stricmp(szMessage, "."))
{
 pClientNodeInstance = (PDWORD)ClientNode_SendChatDet.GetThisPtr();
 strcpy(szMessage, START_GAME);
}
else if (!memcmp(szMessage, ".delay ", 7))
{
 sscanf(szMessage, ".delay %i", &nSleep);
 strcpy(szMessage, START_GAME);
}

}
bool bSpam = false;
DWORD WINAPI KeyBindThread(LPVOID)
{
while(true)
{
 if (GetAsyncKeyState(VK_MBUTTON)&1)
 {
 	bSpam = true;
 }

 if (GetAsyncKeyState(0x60)&1)
 	bSpam = false;

 else if (GetAsyncKeyState(VK_HOME)&1)
 	AppendShowChat();

 else if (GetAsyncKeyState(VK_END)&1)
 	AppendShowChat(false);

 if (bSpam)
 {
 	if (pClientNodeInstance == NULL)
   continue;

 	AppendShowChat();
 	char szBuffer[384];
 	strcpy(szBuffer, "/all ..");
 	for (int i = strlen("/all ..")-1; i < 384; ++i)
   szBuffer[i] = '\n';

 	((int (__thiscall*)(PDWORD, char*))dwClientNode_SendChatAddress) (pClientNodeInstance, szBuffer);
 }
 Sleep(nSleep);
}
}

BOOL WINAPI DllMain(HMODULE hModule, DWORD dwReason, LPVOID)
{
if (dwReason == DLL_PROCESS_ATTACH)
{
 DisableThreadLibraryCalls(hModule);
 ClientNode_SendChatDet.Detour((PBYTE)dwClientNode_SendChatAddress, (PBYTE)ClientNode_SendChat, true);
 ClientNode_SendChatDet.Apply();
 CreateThread(NULL, NULL, KeyBindThread, NULL, NULL, NULL);
}
return TRUE;
}