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Implement a mempatch function and create a ServerProcess patch with it

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This commit is contained in:
Robert MacGregor 2017-07-22 16:57:21 -04:00
parent cb9895a38e
commit da08659d72
7 changed files with 59 additions and 6 deletions
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2
CommonAPI/Common/Release/Common.lastbuildstate
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@ -1,2 +1,2 @@
#v4.0:v100
Release|Win32|C:\Documents and Settings\NobodyBla\Desktop\T2AI\T2-CPP-master\|
Release|Win32|C:\Documents and Settings\NobodyBla\Desktop\T2AI\T2-CPP\|

4
CommonAPI/Common/include/DXAPI/DXAPI.h
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@ -57,6 +57,6 @@ namespace DX
bool SanitizeFileName(char *ret, int buffer_length);
//! Initializes all hooks for the engine.
void initializeHooks(void);
// bool memPatch(void* address, void* payload, unsigned int payloadSize);
bool memPatch(unsigned int address, void* payload, unsigned int payloadSize);
} // End NameSpace DX

22
CommonAPI/Common/source/DXAPI/DXAPI.cpp
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@ -189,8 +189,28 @@ namespace DX
return was_dirty;
}
void initializeHooks(void)
bool memPatch(void* address, void* payload, unsigned int payloadSize)
{
DWORD oldProtect;
bool success = VirtualProtect(address, payloadSize, PAGE_EXECUTE_READWRITE, &oldProtect);
if (!success)
return false;
// Come on Microsoft... why can't anything you make actually be good.
// NOTE: This memcpy invocation was crashing the linker...
//memcpy(address, payload, payloadSize);
unsigned char* destination = reinterpret_cast<unsigned char*>(address);
unsigned char* sourceData = reinterpret_cast<unsigned char*>(payload);
for (unsigned int iteration = 0; iteration < payloadSize; ++iteration)
destination[iteration] = sourceData[iteration];
return true;
}
bool memPatch(unsigned int address, void* payload, unsigned int payloadSize)
{
return memPatch(reinterpret_cast<void*>(address), payload, payloadSize);
}
}