NorthstarLauncher/NorthstarDLL/memory.h

91 lines
2.4 KiB
C++

#pragma once
class MemoryAddress
{
public:
uintptr_t m_nAddress;
public:
MemoryAddress();
MemoryAddress(const uintptr_t nAddress);
MemoryAddress(const void* pAddress);
// operators
operator uintptr_t() const;
operator void*() const;
operator bool() const;
bool operator==(const MemoryAddress& other) const;
bool operator!=(const MemoryAddress& other) const;
bool operator==(const uintptr_t& addr) const;
bool operator!=(const uintptr_t& addr) const;
MemoryAddress operator+(const MemoryAddress& other) const;
MemoryAddress operator-(const MemoryAddress& other) const;
MemoryAddress operator+(const uintptr_t& other) const;
MemoryAddress operator-(const uintptr_t& other) const;
MemoryAddress operator*() const;
template <typename T> T As()
{
return reinterpret_cast<T>(m_nAddress);
}
// traversal
MemoryAddress Offset(const uintptr_t nOffset) const;
MemoryAddress Deref(const int nNumDerefs = 1) const;
// patching
void Patch(const uint8_t* pBytes, const size_t nSize);
void Patch(const std::initializer_list<uint8_t> bytes);
void Patch(const char* pBytes);
void NOP(const size_t nSize);
bool IsMemoryReadable(const size_t nSize);
};
// based on https://github.com/Mauler125/r5sdk/blob/master/r5dev/public/include/module.h
class CModule : public MemoryAddress
{
public:
struct ModuleSections_t
{
ModuleSections_t(void) = default;
ModuleSections_t(const std::string& svSectionName, uintptr_t pSectionBase, size_t nSectionSize)
: m_svSectionName(svSectionName), m_pSectionBase(pSectionBase), m_nSectionSize(nSectionSize)
{
}
bool IsSectionValid(void) const
{
return m_nSectionSize != 0;
}
std::string m_svSectionName; // Name of section.
uintptr_t m_pSectionBase {}; // Start address of section.
size_t m_nSectionSize {}; // Size of section.
};
ModuleSections_t m_ExecutableCode;
ModuleSections_t m_ExceptionTable;
ModuleSections_t m_RunTimeData;
ModuleSections_t m_ReadOnlyData;
private:
std::string m_svModuleName;
uintptr_t m_pModuleBase {};
DWORD m_nModuleSize {};
IMAGE_NT_HEADERS64* m_pNTHeaders = nullptr;
IMAGE_DOS_HEADER* m_pDOSHeader = nullptr;
std::vector<ModuleSections_t> m_vModuleSections;
public:
CModule() = delete; // no default, we need a module name
CModule(const HMODULE pModule);
CModule(const char* pModuleName);
MemoryAddress GetExport(const char* pExportName);
MemoryAddress FindPattern(const uint8_t* pPattern, const char* pMask);
MemoryAddress FindPattern(const char* pPattern);
};