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Add client and debug utilities + cleanup

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This commit is contained in:
Amos
2022-01-04 11:53:54 +01:00
parent 477152b354
commit 84e7729ca0
16 changed files with 161 additions and 29 deletions
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1
r5dev/public/include/utility.h
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@@ -3,6 +3,7 @@
/////////////////////////////////////////////////////////////////////////////
// Internals
BOOL IsBadReadPtrV2(void* ptr);
BOOL FileExists(const char* szPath);
MODULEINFO GetModuleInfo(const char* szModule);
DWORD64 FindPatternSIMD(const char* szModule, const unsigned char* szPattern, const char* szMask);

16
r5dev/public/utility.cpp
View File

@@ -13,6 +13,22 @@ BOOL FileExists(const char* szPath)
return std::filesystem::exists(szPath);
}
///////////////////////////////////////////////////////////////////////////////
// For checking if pointer is valid or bad.
BOOL IsBadReadPtrV2(void* ptr)
{
MEMORY_BASIC_INFORMATION mbi = { 0 };
if (::VirtualQuery(ptr, &mbi, sizeof(mbi)))
{
DWORD mask = (PAGE_READONLY | PAGE_READWRITE | PAGE_WRITECOPY | PAGE_EXECUTE_READ | PAGE_EXECUTE_READWRITE | PAGE_EXECUTE_WRITECOPY);
bool b = !(mbi.Protect & mask);
// check the page is not a guard page
if (mbi.Protect & (PAGE_GUARD | PAGE_NOACCESS)) b = true;
return b;
}
return true;
}
///////////////////////////////////////////////////////////////////////////////
// For getting information about the executing module.
MODULEINFO GetModuleInfo(const char* szModule)