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Exclude RtlPcToFileHeader hook from x86 builds 

Exception info on x86 is absolute rather than relative (as x64) so
exception creation doesn't require this call.

Additionally Win8.1 SDK doesn't export `RtlPcToFileHeader` in
kernel32.lib for static linking, which causes linking to fail
dependabot/npm_and_yarn/Src/WebController/UI/websocket-extensions-0.1.4
Grzegorz Rychlik 2020-01-28 10:50:25 +01:00
parent f0e7ece23d
commit ba5617a5e1
1 changed files with 5 additions and 1 deletions
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6
Src/CebuLoader/LoadPe.cpp
View File

@ -28,7 +28,8 @@ namespace MWR::Loader
DWORD m_SizeOfTheDll; DWORD m_SizeOfTheDll;
} moduleData; } moduleData;
PVOID RtlPcToFileHeaderHook(PVOID pc, PVOID* baseOfImage) #if defined _M_AMD64
void* RtlPcToFileHeaderHook(PVOID pc, PVOID* baseOfImage)
{ {
if (pc > (void*)moduleData.m_DllBaseAddress and pc < (void*)(moduleData.m_DllBaseAddress + moduleData.m_SizeOfTheDll)) if (pc > (void*)moduleData.m_DllBaseAddress and pc < (void*)(moduleData.m_DllBaseAddress + moduleData.m_SizeOfTheDll))
{ {
@ -40,11 +41,14 @@ namespace MWR::Loader
return RtlPcToFileHeader(pc, baseOfImage); return RtlPcToFileHeader(pc, baseOfImage);
} }
} }
#endif
void* GetHookAddress(const char* dllName, const char* funcName) void* GetHookAddress(const char* dllName, const char* funcName)
{ {
#if defined _M_AMD64
if (_stricmp(dllName,"kernel32.dll") == 0 && strcmp(funcName, "RtlPcToFileHeader") == 0) if (_stricmp(dllName,"kernel32.dll") == 0 && strcmp(funcName, "RtlPcToFileHeader") == 0)
return (void*)RtlPcToFileHeaderHook; return (void*)RtlPcToFileHeaderHook;
#endif
return nullptr; return nullptr;
} }