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-rw-r--r--primedev/core/memory.h90
1 files changed, 90 insertions, 0 deletions
diff --git a/primedev/core/memory.h b/primedev/core/memory.h
new file mode 100644
index 00000000..a978963e
--- /dev/null
+++ b/primedev/core/memory.h
@@ -0,0 +1,90 @@
+#pragma once
+
+class CMemoryAddress
+{
+public:
+ uintptr_t m_nAddress;
+
+public:
+ CMemoryAddress();
+ CMemoryAddress(const uintptr_t nAddress);
+ CMemoryAddress(const void* pAddress);
+
+ // operators
+ operator uintptr_t() const;
+ operator void*() const;
+ operator bool() const;
+
+ bool operator==(const CMemoryAddress& other) const;
+ bool operator!=(const CMemoryAddress& other) const;
+ bool operator==(const uintptr_t& addr) const;
+ bool operator!=(const uintptr_t& addr) const;
+
+ CMemoryAddress operator+(const CMemoryAddress& other) const;
+ CMemoryAddress operator-(const CMemoryAddress& other) const;
+ CMemoryAddress operator+(const uintptr_t& other) const;
+ CMemoryAddress operator-(const uintptr_t& other) const;
+ CMemoryAddress operator*() const;
+
+ template <typename T> T RCast()
+ {
+ return reinterpret_cast<T>(m_nAddress);
+ }
+
+ // traversal
+ CMemoryAddress Offset(const uintptr_t nOffset) const;
+ CMemoryAddress 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 CMemoryAddress
+{
+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);
+
+ CMemoryAddress GetExport(const char* pExportName);
+ CMemoryAddress FindPattern(const uint8_t* pPattern, const char* pMask);
+ CMemoryAddress FindPattern(const char* pPattern);
+};