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add rpg maker mz hook

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This commit is contained in:
Akash Mozumdar 2021-06-30 20:59:07 -06:00
parent b28b68d218
commit f8874bf8a0
1 changed files with 27 additions and 9 deletions
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36
texthook/engine/match64.cc
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@ -132,26 +132,44 @@ namespace Engine
// sample game https://www.freem.ne.jp/dl/win/18963
bool InsertV8Hook(HMODULE module)
{
if (uint64_t addr = (uint64_t)GetProcAddress(module, "?Write@String@v8@@QEBAHPEAGHHH@Z"))
auto getV8Length = [](uintptr_t, uintptr_t data)
{
int len = *(int*)(data - 4);
return len > 0 && len < PIPE_BUFFER_SIZE ? len * 2 : 0;
};
uint64_t addr1 = (uint64_t)GetProcAddress(module, "?Write@String@v8@@QEBAHPEAGHHH@Z"),
// Artikash 6/7/2021: Add new hook for new version of V8 used by RPG Maker MZ
addr2 = (uint64_t)GetProcAddress(module, "??$WriteToFlat@G@String@internal@v8@@SAXV012@PEAGHH@Z");
if (addr1 || addr2)
{
std::tie(spDefault.minAddress, spDefault.maxAddress) = Util::QueryModuleLimits(module);
spDefault.maxRecords = Util::SearchMemory(spDefault.pattern, spDefault.length, PAGE_EXECUTE, spDefault.minAddress, spDefault.maxAddress).size() * 20;
ConsoleOutput("Textractor: JavaScript hook is known to be low quality: try searching for hooks if you don't like it");
}
if (addr1)
{
HookParam hp = {};
hp.type = USING_STRING | USING_UNICODE | DATA_INDIRECT;
hp.address = addr;
hp.address = addr1;
hp.offset = -0x20; // rcx
hp.index = 0;
hp.padding = 23;
hp.length_fun = [](uintptr_t, uintptr_t data)
{
int len = *(int*)(data - 4);
return len > 0 && len < PIPE_BUFFER_SIZE ? len * 2 : 0;
};
hp.length_fun = getV8Length;
NewHook(hp, "JavaScript");
return true;
}
return false;
if (addr2)
{
HookParam hp = {};
hp.type = USING_STRING | USING_UNICODE;
hp.address = addr2;
hp.offset = -0x20; // rcx
hp.padding = 11;
hp.length_fun = getV8Length;
NewHook(hp, "JavaScript");
}
return addr1 || addr2;
}
/** Artikash 8/10/2018: Ren'py