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process.h
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process.h
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#include <Windows.h>
#include <TlHelp32.h>
#include <cstdint>
#include "ntdll.h"
#include "math.h"
namespace Process {
DWORD pid = 0;
DWORD cookie = 0;
HANDLE handle = NULL;
// init functions ==========================================
void GetProcessID(const char* processName) {
PROCESSENTRY32 entry;
entry.dwSize = sizeof(PROCESSENTRY32);
HANDLE snapshot = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, NULL);
if (Process32First(snapshot, &entry)) {
do {
if (!strcmp(entry.szExeFile, processName)) {
pid = entry.th32ProcessID;
break;
}
} while (Process32Next(snapshot, &entry));
}
CloseHandle(snapshot);
}
void OpenHandle() {
handle = OpenProcess(PROCESS_ALL_ACCESS, false, pid);
}
void GetCookie() {
DWORD temp;
NtQueryInformationProcess(handle, ProcessCookie, &temp, sizeof(DWORD), NULL);
cookie = temp;
}
void Init(const char* processName) {
GetProcessID(processName);
OpenHandle();
GetCookie();
}
// =========================================================
template <class T>
T Read(uintptr_t address, size_t bytesToRead = sizeof(T))
{
T buf;
ReadProcessMemory(handle, reinterpret_cast<LPCVOID>(address), &buf, bytesToRead, nullptr);
return buf;
}
uintptr_t DecodePointer(uintptr_t pointer) {
return __ROR8__(pointer, 64 - (cookie & 0x3F)) ^ cookie;
}
}