diff options
Diffstat (limited to 'NorthstarDLL/memory.h')
-rw-r--r-- | NorthstarDLL/memory.h | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/NorthstarDLL/memory.h b/NorthstarDLL/memory.h new file mode 100644 index 00000000..7ed4ed59 --- /dev/null +++ b/NorthstarDLL/memory.h @@ -0,0 +1,87 @@ +#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); +};
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