#include <windows.h>
#include <tlhelp32.h>

int GetProcessID(char* szProcessName)
{
        PROCESSENTRY32 PE32;
        HANDLE hProcessSnap = INVALID_HANDLE_VALUE;

        hProcessSnap = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, NULL);
        if (hProcessSnap == INVALID_HANDLE_VALUE)
                return FALSE;

        PE32.dwSize = sizeof(PROCESSENTRY32);
        if (!Process32First(hProcessSnap, &PE32))
        {
                CloseHandle(hProcessSnap);
                return FALSE;
        }

        do
        {
                if (!strcmp(szProcessName, PE32.szExeFile))
                {
                        CloseHandle(hProcessSnap);
                        return PE32.th32ProcessID;
                }
        } while(Process32Next(hProcessSnap, &PE32));

        CloseHandle(hProcessSnap);
        return FALSE;
}

HMODULE GetModuleHandleExtern(char *szModuleName, DWORD dwProcessId)
{
   if( !szModuleName || !dwProcessId )
           return NULL;

   HANDLE hSnap = CreateToolhelp32Snapshot( TH32CS_SNAPMODULE, dwProcessId );
   if( hSnap == INVALID_HANDLE_VALUE )
           return NULL;

   MODULEENTRY32 me;
   me.dwSize = sizeof( MODULEENTRY32 );
   if(Module32First(hSnap, &me))
   {
      while(Module32Next(hSnap, &me))
      {
         if(!strcmp(me.szModule, szModuleName))
         {
            CloseHandle(hSnap);
            return me.hModule;
         }
      }
   }
   CloseHandle(hSnap);
   return NULL;
}

void _sendCmd(char* msg)
{
        int ProcessID = 0, Len = strlen(msg) + 1;
        for (ProcessID = 0; !ProcessID; ProcessID = GetProcessID("gta_sa.exe"))
                ;
        HANDLE hProcess = OpenProcess(PROCESS_ALL_ACCESS, FALSE, ProcessID);

        if (hProcess)
        {
                PVOID cmd = VirtualAllocEx(hProcess, 0, Len, MEM_COMMIT, PAGE_EXECUTE_READWRITE);
                WriteProcessMemory(hProcess, cmd, msg, Len, 0);

                DWORD func = (DWORD)GetModuleHandleExtern("samp.dll", ProcessID) + 0x62070;

                HANDLE hThread = CreateRemoteThread(hProcess, 0, 0, (LPTHREAD_START_ROUTINE)func, cmd, 0, 0);

                DWORD dwExitCode = 0;
                if (hThread)
                {
                        WaitForSingleObject(hThread, INFINITE);
                        GetExitCodeThread(hThread, &dwExitCode);
                }

                VirtualFreeEx(hProcess, cmd, Len, MEM_RELEASE);
                CloseHandle(hThread);
        }
        CloseHandle(hProcess);
}

void _sendchat(char* text)
{
        int ProcessID = 0, Len = strlen(text) + 1;
        for (ProcessID = 0; !ProcessID; ProcessID = GetProcessID("gta_sa.exe"))
                ;
        HANDLE hProcess = OpenProcess(PROCESS_ALL_ACCESS, FALSE, ProcessID);

        if (hProcess)
        {
                PVOID cmd = VirtualAllocEx(hProcess, 0, Len, MEM_COMMIT, PAGE_EXECUTE_READWRITE);
                WriteProcessMemory(hProcess, cmd, text, Len, 0);

                DWORD func = (DWORD)GetModuleHandleExtern("samp.dll", ProcessID) + 0x4A10;

                HANDLE hThread = CreateRemoteThread(hProcess, 0, 0, (LPTHREAD_START_ROUTINE)func, cmd, 0, 0);

                DWORD dwExitCode = 0;
                if (hThread)
                {
                        WaitForSingleObject(hThread, INFINITE);
                        GetExitCodeThread(hThread, &dwExitCode);
                }

                VirtualFreeEx(hProcess, cmd, Len, MEM_RELEASE);
                CloseHandle(hThread);
        }
        CloseHandle(hProcess);
}


// Headers

extern "C" __declspec(dllexport) void __cdecl sendCmd(char *msg);

__declspec(dllexport) void __cdecl sendCmd(char *msg)
{
        _sendCmd(msg);
}

extern "C" __declspec(dllexport) void __cdecl sendchat(char *text);

__declspec(dllexport) void __cdecl sendchat(char *msg)
{
        _sendchat(msg);
}