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89 lines
5.6 KiB
C++
89 lines
5.6 KiB
C++
#pragma once
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#include "public/ifilesystem.h"
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class CBaseFileSystem : public CTier1AppSystem<IFileSystem>
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{
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public:
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//--------------------------------------------------------
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// Purpose: Static methods used for hooking.
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//--------------------------------------------------------
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static void Warning(CBaseFileSystem* pFileSystem, FileWarningLevel_t level, const char* fmt, ...);
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static bool VCheckDisk(const char* pszFilePath);
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static FileHandle_t VReadFromVPK(CBaseFileSystem* pFileSystem, FileHandle_t pResults, const char* pszFilePath);
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static bool VReadFromCache(CBaseFileSystem* pFileSystem, const char* pszFilePath, FileSystemCache* pCache);
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static void VAddMapPackFile(CBaseFileSystem* pFileSystem, const char* pPath, const char* pPathID, SearchPathAdd_t addType);
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static VPKData_t* VMountVPKFile(CBaseFileSystem* pFileSystem, const char* pszVpkPath);
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static const char* VUnmountVPKFile(CBaseFileSystem* pFileSystem, const char* pszVpkPath);
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CUtlString ReadString(FileHandle_t pFile);
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protected:
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//----------------------------------------------------------------------------
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// Purpose: Functions implementing basic file system behavior.
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//----------------------------------------------------------------------------
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virtual FILE* FS_fopen(const char* filename, const char* options, unsigned flags, int64* size) = 0;
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virtual void FS_setbufsize(FILE* fp, unsigned nBytes) = 0;
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virtual void FS_fclose(FILE* fp) = 0;
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virtual void FS_fseek(FILE* fp, int64 pos, int seekType) = 0;
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virtual long FS_ftell(FILE* fp) = 0;
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virtual int FS_feof(FILE* fp) = 0;
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virtual size_t FS_fread(void* dest, size_t destSize, size_t size, FILE* fp) = 0;
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virtual size_t FS_fwrite(const void* src, size_t size, FILE* fp) = 0;
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virtual bool FS_setmode(FILE* fp, FileMode_t mode) = 0;
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virtual size_t FS_vfprintf(FILE* fp, const char* fmt, va_list list) = 0;
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virtual int FS_ferror(FILE* fp) = 0;
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virtual int FS_fflush(FILE* fp) = 0;
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virtual char* FS_fgets(char* dest, int destSize, FILE* fp) = 0;
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virtual int FS_stat(const char* path, struct _stat* buf, bool* pbLoadedFromSteamCache = NULL) = 0;
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virtual int FS_chmod(const char* path, int pmode) = 0;
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virtual HANDLE FS_FindFirstFile(const char* findname, WIN32_FIND_DATA* dat) = 0;
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virtual bool FS_FindNextFile(HANDLE handle, WIN32_FIND_DATA* dat) = 0;
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virtual bool FS_FindClose(HANDLE handle) = 0;
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virtual int FS_GetSectorSize(FILE*) = 0;
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};
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/* ==== CBASEFILESYSTEM ================================================================================================================================================= */
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inline void(*CBaseFileSystem__Warning)(CBaseFileSystem* pFileSystem, FileWarningLevel_t level, const char* fmt, ...);
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inline FileHandle_t(*CBaseFileSystem__LoadFromVPK)(CBaseFileSystem* pFileSystem, FileHandle_t pResults, const char* pszAssetName);
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inline bool(*CBaseFileSystem__LoadFromCache)(CBaseFileSystem* pFileSystem, const char* pszAssetName, FileSystemCache* pCache);
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inline void(*CBaseFileSystem__AddMapPackFile)(CBaseFileSystem* pFileSystem, const char* pPath, const char* pPathID, SearchPathAdd_t addType);
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inline VPKData_t*(*CBaseFileSystem__MountVPKFile)(CBaseFileSystem* pFileSystem, const char* pszVpkPath);
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inline const char* (*CBaseFileSystem__UnmountVPKFile)(CBaseFileSystem* pFileSystem, const char* pszVpkPath);
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inline int(*CBaseFileSystem__GetMountedVPKHandle)(CBaseFileSystem* pFileSystem, const char* pszVpkPath);
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extern CBaseFileSystem* g_pFileSystem;
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///////////////////////////////////////////////////////////////////////////////
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class VBaseFileSystem : public IDetour
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{
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virtual void GetAdr(void) const
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{
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LogFunAdr("CBaseFileSystem::Warning", CBaseFileSystem__Warning);
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LogFunAdr("CBaseFileSystem::LoadFromVPK", CBaseFileSystem__LoadFromVPK);
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LogFunAdr("CBaseFileSystem::LoadFromCache", CBaseFileSystem__LoadFromCache);
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LogFunAdr("CBaseFileSystem::AddMapPackFile", CBaseFileSystem__AddMapPackFile);
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LogFunAdr("CBaseFileSystem::MountVPKFile", CBaseFileSystem__MountVPKFile);
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LogFunAdr("CBaseFileSystem::UnmountVPKFile", CBaseFileSystem__UnmountVPKFile);
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LogFunAdr("CBaseFileSystem::GetMountedVPKHandle", CBaseFileSystem__GetMountedVPKHandle);
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LogVarAdr("g_pFileSystem", g_pFileSystem);
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}
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virtual void GetFun(void) const
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{
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g_GameDll.FindPatternSIMD("4C 89 4C 24 20 C3 CC CC CC CC CC CC CC CC CC CC 48").GetPtr(CBaseFileSystem__Warning);
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g_GameDll.FindPatternSIMD("48 89 5C 24 ?? 57 48 81 EC ?? ?? ?? ?? 49 8B C0 4C 8D 8C 24 ?? ?? ?? ??").GetPtr(CBaseFileSystem__LoadFromVPK);
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g_GameDll.FindPatternSIMD("40 53 48 81 EC ?? ?? ?? ?? 80 3D ?? ?? ?? ?? ?? 49 8B D8").GetPtr(CBaseFileSystem__LoadFromCache);
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g_GameDll.FindPatternSIMD("4C 89 44 24 ?? 48 89 54 24 ?? 55 ?? 41 54 41 55 48 8D AC 24 ?? ?? ?? ??").GetPtr(CBaseFileSystem__AddMapPackFile);
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g_GameDll.FindPatternSIMD("48 89 5C 24 ?? 48 89 6C 24 ?? 57 48 81 EC ?? ?? ?? ?? 48 8B F9 4C 8D 05 ?? ?? ?? ??").GetPtr(CBaseFileSystem__MountVPKFile);
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g_GameDll.FindPatternSIMD("48 89 5C 24 ?? 57 48 83 EC 20 48 8B DA 48 8B F9 48 8B CB 48 8D 15 ?? ?? ?? ?? E8 ?? ?? ?? ?? 48 85 C0").GetPtr(CBaseFileSystem__UnmountVPKFile);
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g_GameDll.FindPatternSIMD("48 89 74 24 ?? 57 48 81 EC ?? ?? ?? ?? 48 8B F9 4C 8D 05 ?? ?? ?? ??").GetPtr(CBaseFileSystem__GetMountedVPKHandle);
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}
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virtual void GetVar(void) const
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{
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g_pFileSystem = g_GameDll.FindPatternSIMD("48 8D 05 ?? ?? ?? ?? 48 89 05 ?? ?? ?? ?? 48 8D 0D ?? ?? ?? ?? 48 8D 05 ?? ?? ?? ?? 48 89 05 ?? ?? ?? ?? E9 ?? ?? ?? ??")
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.FindPattern("48 89", CMemory::Direction::DOWN, 512, 2).ResolveRelativeAddressSelf(0x3, 0x7).RCast<CBaseFileSystem*>();
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}
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virtual void GetCon(void) const { }
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virtual void Detour(const bool bAttach) const;
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};
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///////////////////////////////////////////////////////////////////////////////
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