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5eb784a882
Standalone FileSystem implementation, allowing SDK code to be used in tools without adjusting them as the vtables remain identical. NOTE that this reimplementation is partial and only contains the reading and writing of files to/from buffers or disk as that's what we are mainly interested at. We can always implement the other methods when needed. NOTE: the filesystem singleton accessor (CFileSystem_Stdio* FileSystem()) has been moved to an implementation file instead of being inline as this would allow existing code to link to the tools implementation instead.
63 lines
2.7 KiB
C++
63 lines
2.7 KiB
C++
#ifndef FILESYSTEM_H
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#define FILESYSTEM_H
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#include "public/ifilesystem.h"
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#include "public/ifile.h"
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#include "filesystem/basefilesystem.h"
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class CFileSystem_Stdio : public CBaseFileSystem
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{
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protected:
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// implementation of CBaseFileSystem virtual functions
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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, unsigned int destSize) = 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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extern CFileSystem_Stdio** g_pFullFileSystem; // Ptr to g_pFileSystem_Stdio.
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extern CFileSystem_Stdio* g_pFileSystem_Stdio;
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//-----------------------------------------------------------------------------
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// Singleton FileSystem
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//-----------------------------------------------------------------------------
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extern CFileSystem_Stdio* FileSystem();
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///////////////////////////////////////////////////////////////////////////////
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class VFileSystem_Stdio : public IDetour
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{
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virtual void GetAdr(void) const
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{
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LogVarAdr("g_pFullFileSystem", g_pFullFileSystem);
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LogVarAdr("g_pFileSystem_Stdio", g_pFileSystem_Stdio);
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}
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virtual void GetFun(void) const { }
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virtual void GetVar(void) const
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{
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g_pFullFileSystem = g_GameDll.FindPatternSIMD("48 8B 0D ?? ?? ?? ?? 45 33 C0 48 83 C1 08 48 8B 01").ResolveRelativeAddressSelf(0x3, 0x7).RCast<CFileSystem_Stdio**>();
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g_pFileSystem_Stdio = 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, 1).ResolveRelativeAddressSelf(0x3, 0x7).RCast<CFileSystem_Stdio*>();
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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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#endif // !FILESYSTEM_H
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