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TitanEngine
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Code Releases Activity

added a check to SetBPXOptions 

removed useless VirtualQueryEx
This commit is contained in:
mr.exodia 2014-03-20 00:15:56 +01:00
parent 05f9b7a3fc
commit 481e7bb8ca
1 changed files with 9 additions and 10 deletions
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19
TitanEngine/TitanEngine.Breakpoints.cpp
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@ -13,7 +13,8 @@ static BYTE INT3LongBreakPoint[2] = {0xCD, 0x03};
__declspec(dllexport) void TITCALL SetBPXOptions(long DefaultBreakPointType) __declspec(dllexport) void TITCALL SetBPXOptions(long DefaultBreakPointType)
{ {
engineDefaultBreakPointType = DefaultBreakPointType; if(DefaultBreakPointType == UE_BREAKPOINT_INT3 || DefaultBreakPointType == UE_BREAKPOINT_LONG_INT3 || DefaultBreakPointType == UE_BREAKPOINT_UD2)
engineDefaultBreakPointType = DefaultBreakPointType;
} }
__declspec(dllexport) bool TITCALL IsBPXEnabled(ULONG_PTR bpxAddress) __declspec(dllexport) bool TITCALL IsBPXEnabled(ULONG_PTR bpxAddress)
@ -191,13 +192,7 @@ __declspec(dllexport) bool TITCALL SetBPX(ULONG_PTR bpxAddress, DWORD bpxType, L
memset(&NewBreakPoint, 0, sizeof(BreakPointDetail)); memset(&NewBreakPoint, 0, sizeof(BreakPointDetail));
if(bpxType < UE_BREAKPOINT_TYPE_INT3) if(bpxType < UE_BREAKPOINT_TYPE_INT3)
{ {
if(engineDefaultBreakPointType == UE_BREAKPOINT_INT3) if(engineDefaultBreakPointType == UE_BREAKPOINT_LONG_INT3)
{
SelectedBreakPointType = UE_BREAKPOINT_INT3;
NewBreakPoint.BreakPointSize = 1;
bpxDataPrt = &INT3BreakPoint;
}
else if(engineDefaultBreakPointType == UE_BREAKPOINT_LONG_INT3)
{ {
SelectedBreakPointType = UE_BREAKPOINT_LONG_INT3; SelectedBreakPointType = UE_BREAKPOINT_LONG_INT3;
NewBreakPoint.BreakPointSize = 2; NewBreakPoint.BreakPointSize = 2;
@ -209,6 +204,12 @@ __declspec(dllexport) bool TITCALL SetBPX(ULONG_PTR bpxAddress, DWORD bpxType, L
NewBreakPoint.BreakPointSize = 2; NewBreakPoint.BreakPointSize = 2;
bpxDataPrt = &UD2BreakPoint; bpxDataPrt = &UD2BreakPoint;
} }
else //default
{
SelectedBreakPointType = UE_BREAKPOINT_INT3;
NewBreakPoint.BreakPointSize = 1;
bpxDataPrt = &INT3BreakPoint;
}
} }
else else
{ {
@ -235,8 +236,6 @@ __declspec(dllexport) bool TITCALL SetBPX(ULONG_PTR bpxAddress, DWORD bpxType, L
} }
//set breakpoint in process //set breakpoint in process
bpxDataCmpPtr = (PMEMORY_COMPARE_HANDLER)bpxDataPrt; bpxDataCmpPtr = (PMEMORY_COMPARE_HANDLER)bpxDataPrt;
VirtualQueryEx(dbgProcessInformation.hProcess, (LPVOID)bpxAddress, &MemInfo, sizeof MEMORY_BASIC_INFORMATION);
OldProtect = MemInfo.Protect;
VirtualProtectEx(dbgProcessInformation.hProcess, (LPVOID)bpxAddress, NewBreakPoint.BreakPointSize, PAGE_EXECUTE_READWRITE, &OldProtect); VirtualProtectEx(dbgProcessInformation.hProcess, (LPVOID)bpxAddress, NewBreakPoint.BreakPointSize, PAGE_EXECUTE_READWRITE, &OldProtect);
if(ReadProcessMemory(dbgProcessInformation.hProcess, (LPVOID)bpxAddress, &NewBreakPoint.OriginalByte[0], NewBreakPoint.BreakPointSize, &NumberOfBytesReadWritten)) if(ReadProcessMemory(dbgProcessInformation.hProcess, (LPVOID)bpxAddress, &NewBreakPoint.OriginalByte[0], NewBreakPoint.BreakPointSize, &NumberOfBytesReadWritten))
{ {