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Updated Patternies

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This commit is contained in:
Silent 2018-01-21 13:14:02 +01:00
parent eb2172945b
commit 986f802131
2 changed files with 17 additions and 24 deletions
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10
SilentPatch/Patterns.cpp
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@ -119,8 +119,8 @@ public:
return (TReturn*)(m_begin + rva);
}
explicit executable_meta(void* module)
: m_begin((uintptr_t)module)
explicit executable_meta(uintptr_t module)
: m_begin(module)
{
PIMAGE_DOS_HEADER dosHeader = getRVA<IMAGE_DOS_HEADER>(0);
PIMAGE_NT_HEADERS ntHeader = getRVA<IMAGE_NT_HEADERS>(dosHeader->e_lfanew);
@ -149,7 +149,9 @@ void pattern::Initialize(std::string_view pattern)
#if PATTERNS_USE_HINTS
// if there's hints, try those first
if (m_module == GetModuleHandle(nullptr))
#if PATTERNS_CAN_SERIALIZE_HINTS
if (m_rangeStart == reinterpret_cast<uintptr_t>(GetModuleHandle(nullptr)))
#endif
{
auto range = getHints().equal_range(m_hash);
@ -179,7 +181,7 @@ void pattern::EnsureMatches(uint32_t maxCount)
}
// scan the executable for code
executable_meta executable = m_rangeStart != 0 && m_rangeEnd != 0 ? executable_meta(m_rangeStart, m_rangeEnd) : executable_meta(m_module);
executable_meta executable = m_rangeStart != 0 && m_rangeEnd != 0 ? executable_meta(m_rangeStart, m_rangeEnd) : executable_meta(m_rangeStart);
auto matchSuccess = [&] (uintptr_t address)
{

31
SilentPatch/Patterns.h
View file

@ -34,14 +34,13 @@ namespace hook
// sets the base to the process main base
void set_base();
template<typename T>
inline T* getRVA(uintptr_t rva)
inline uintptr_t getRVA(uintptr_t rva)
{
set_base();
#ifdef _M_IX86
return (T*)(baseAddressDifference + 0x400000 + rva);
return static_cast<uintptr_t>(baseAddressDifference + 0x400000 + rva);
#elif defined(_M_AMD64)
return (T*)(0x140000000 + rva);
return static_cast<uintptr_t>(baseAddressDifference(0x140000000 + rva);
#endif
}
@ -78,20 +77,12 @@ namespace hook
bool m_matched = false;
union
{
void* m_module;
struct
{
uintptr_t m_rangeStart;
uintptr_t m_rangeEnd;
};
};
protected:
void Initialize(std::string_view pattern);
uintptr_t m_rangeStart;
uintptr_t m_rangeEnd;
private:
void Initialize(std::string_view pattern);
bool ConsiderHint(uintptr_t offset);
void EnsureMatches(uint32_t maxCount);
@ -101,8 +92,8 @@ namespace hook
return m_matches[index];
}
inline pattern(void* module)
: m_module(module), m_rangeEnd(0)
inline pattern(uintptr_t module)
: pattern( module, 0 )
{
}
@ -113,13 +104,13 @@ namespace hook
public:
pattern(std::string_view pattern)
: pattern(getRVA<void>(0))
: pattern(getRVA(0))
{
Initialize(std::move(pattern));
}
inline pattern(void* module, std::string_view pattern)
: pattern(module)
: pattern(reinterpret_cast<uintptr_t>(module))
{
Initialize(std::move(pattern));
}