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Fixed engine and dll bases screwing up.

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This commit is contained in:
Twilight Suzuka 2006-02-13 19:31:46 +00:00
parent 323341f67a
commit 472613d973
4 changed files with 30 additions and 16 deletions
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4
dlls/MemHack/MemHack.cpp
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@ -13,6 +13,4 @@ void OnAmxxAttach()
MF_AddNatives(read_natives); MF_AddNatives(read_natives);
MF_AddNatives(write_natives); MF_AddNatives(write_natives);
MF_AddNatives(misc_natives); MF_AddNatives(misc_natives);
} }

30
dlls/MemHack/MemMisc.cpp
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@ -1,24 +1,25 @@
#include "MemConst.h" #include "MemConst.h"
// Game memory addresses // Game memory addresses
maddress gameDllAddress; maddress gameDllAddress = NULL;
maddress gameEngAddress; maddress gameEngAddress = NULL;
bool GetBaseAddress(void *pAddr, maddress &pBaseAddr) bool GetBaseAddress(void *pAddr, maddress &pBaseAddr/*, size_t *memLength*/)
{ {
#ifdef WIN32 #ifdef WIN32
MEMORY_BASIC_INFORMATION mem; MEMORY_BASIC_INFORMATION mem;
if (!VirtualQuery(pAddr, &mem, sizeof(mem))) if (!VirtualQuery(pAddr, &mem, sizeof(mem)))
return false; return false;
if (pBaseAddr) pBaseAddr = (maddress)mem.AllocationBase;
pBaseAddr = (maddress)mem.AllocationBase;
IMAGE_DOS_HEADER *dos = (IMAGE_DOS_HEADER *)(mem.AllocationBase); IMAGE_DOS_HEADER *dos = (IMAGE_DOS_HEADER *)(mem.AllocationBase);
IMAGE_NT_HEADERS *pe = reinterpret_cast<IMAGE_NT_HEADERS *>((unsigned long)dos + (unsigned long)dos->e_lfanew); IMAGE_NT_HEADERS *pe = reinterpret_cast<IMAGE_NT_HEADERS*>( (unsigned long)dos + (unsigned long)dos->e_lfanew );
if (pe->Signature != IMAGE_NT_SIGNATURE) if (pe->Signature != IMAGE_NT_SIGNATURE)
return false; return false;
//if (memLength)
//*memLength = (size_t)(pe->OptionalHeader.SizeOfImage);
return true; return true;
#else #else
Dl_info info; Dl_info info;
@ -34,9 +35,9 @@ bool GetBaseAddress(void *pAddr, maddress &pBaseAddr)
return false; return false;
if (pBaseAddr) if (pBaseAddr)
pBaseAddr = (maddress)info.dli_fbase; *pBaseAddr = (unsigned char *)info.dli_fbase;
if (memLength) //if (memLength)
*memLength = buf.st_size; //*memLength = buf.st_size;
return true; return true;
#endif #endif
@ -75,6 +76,15 @@ int MemoryProtect(void *addr, size_t len, unsigned long newProt, unsigned long *
return retVal; return retVal;
} }
// Linux won't work till I fix it for MEMTYPE_DATA
#ifdef __linux__
// Data section stuff
maddress dataSectionStart;
maddress dataSectionOffset;
int pageSize = sysconf(_SC_PAGESIZE);
#endif
/* Gets real memory address */ /* Gets real memory address */
maddress GetRealMemoryAddress(maddress baseaddress, maddress address, char memType) maddress GetRealMemoryAddress(maddress baseaddress, maddress address, char memType)
{ {

6
dlls/MemHack/MemMisc.h
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@ -4,7 +4,7 @@
#include "MemConst.h" #include "MemConst.h"
#define SAMPLE_DLLFUNC reinterpret_cast<void*>(gpGamedllFuncs->dllapi_table->pfnThink) #define SAMPLE_DLLFUNC reinterpret_cast<void*>(gpGamedllFuncs->dllapi_table->pfnThink)
#define SAMPLE_ENGFUNC reinterpret_cast<void*>(*g_engfuncs.pfnChangeLevel) #define SAMPLE_ENGFUNC reinterpret_cast<void*>(g_engfuncs.pfnChangeLevel)
extern maddress gameDllAddress; extern maddress gameDllAddress;
extern maddress gameEngAddress; extern maddress gameEngAddress;
@ -26,10 +26,10 @@ inline bool GetBaseAddresses( void )
{ {
bool success = false; bool success = false;
success = GetBaseAddress(SAMPLE_DLLFUNC, gameDllAddress ); success = GetBaseAddress(SAMPLE_DLLFUNC, gameDllAddress);
if(success == false) return false; if(success == false) return false;
success = GetBaseAddress(SAMPLE_ENGFUNC, gameEngAddress ); success = GetBaseAddress(SAMPLE_ENGFUNC, gameEngAddress);
if(success == false) return false; if(success == false) return false;
return true; return true;

6
dlls/MemHack/MemMiscNatives.cpp
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@ -20,8 +20,14 @@ static cell AMX_NATIVE_CALL memhack_get_realaddr(AMX *amx, cell *params)
return (cell)GetRealMemoryAddress(NATIVE_MISC_ADDRESS,NATIVE_MISC_BASEADDRESS,NATIVE_MISC_FLAGS); return (cell)GetRealMemoryAddress(NATIVE_MISC_ADDRESS,NATIVE_MISC_BASEADDRESS,NATIVE_MISC_FLAGS);
} }
static cell AMX_NATIVE_CALL memhack_return_addr(AMX *amx, cell *params)
{
return (cell)PickBaseAddress(params[1]);
}
AMX_NATIVE_INFO misc_natives[] = { AMX_NATIVE_INFO misc_natives[] = {
{ "memhack_get_base", memhack_get_base }, { "memhack_get_base", memhack_get_base },
{ "memhack_get_realaddr", memhack_get_realaddr }, { "memhack_get_realaddr", memhack_get_realaddr },
{ "memhack_return_addr", memhack_return_addr },
{ NULL, NULL } { NULL, NULL }
}; };