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improved TanukiSoft engine hook and filtered furigana

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This commit is contained in:
Blu3train 2023-11-01 11:21:15 +01:00
parent e5f2b66ece
commit c260bbfa1c
1 changed files with 22 additions and 40 deletions
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62
texthook/engine/engine.cc
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@ -9676,6 +9676,20 @@ bool InsertTanukiHook()
ConsoleOutput("vnreng:TanukiSoft: failed");
return false;
}
bool Tanuki2Filter(LPVOID data, DWORD *size, HookParam *, BYTE)
{
auto text = reinterpret_cast<LPSTR>(data);
auto len = reinterpret_cast<size_t *>(size);
if (cpp_strnstr(text, "\x81\x81", *len)) {
StringFilterBetween(text, len, "\x81\x81", 2, "\x81\x84", 2);
StringFilter(text, len, "\x81\x83", 2);
} else {
StringFilterBetween(text, len, "\x81\x83", 2, "\x81\x84", 2);
}
return true;
}
bool InsertTanuki2Hook()
{
//by Blu3train
@ -9685,55 +9699,23 @@ bool InsertTanuki2Hook()
* https://vndb.org/v10928
*/
const BYTE bytes[] = {
0xCC, // int 3
0x55, // push ebp << hook here
0x8B, 0xEC, // mov ebp,esp
0x6A, 0xFF, // push -01
0x68, XX4, // push noshoujo.exe+33E932
0x64, 0xA1, XX4, // mov eax,fs:[00000000]
0x50, // push eax
0x81, 0xEC, 0xD4, 0x00, 0x00, 0x00, // sub esp,000000D4
0xA1, XX4, // mov eax,[noshoujo.exe+3DC650]
0x33, 0xC5, // xor eax,ebp
0x89, 0x45, 0xF0, // mov [ebp-10],eax
0x56, // push esi
0x57, // push edi
0x50 // push eax
};
const BYTE bytes2[] = {
0xCC, // int 3
0x55, // push ebp << hook here
0x8B, 0xEC, // mov ebp,esp
0x6A, 0xFF, // push -01
0x68, XX4, // push tonarino.exe+295DF8
0x64, 0xA1, XX4, // mov eax,fs:[00000000]
0x50, // push eax
0x81, 0xEC, 0x94, 0x01, 0x00, 0x00, // sub esp,00000194
0xA1, XX4, // mov eax,[tonarino.exe+3291D0]
0x33, 0xC5, // xor eax,ebp
0x89, 0x45, 0xF0, // mov [ebp-10],eax
0x53, // push ebx
0x56, // push esi
0x57, // push edi
0x50, // push eax
0x8D, 0x45, 0xF4, // lea eax,[ebp-0C]
0x64, 0xA3, XX4, // mov fs:[00000000],eax
0x8B, 0x45, 0x08 // mov eax,[ebp+08]
0xE8, XX4, // call noshoujo.exe+237500 << hook here
0x8B, XX, // mov ecx,esi
0x83, 0xC4, 0x0C, // add esp,0C
0x8D, XX, 0x01 // lea edx,[ecx+01]
};
ULONG range = min(processStopAddress - processStartAddress, MAX_REL_ADDR);
ULONG addr = MemDbg::findBytes(bytes, sizeof(bytes), processStartAddress, processStartAddress + range);
if (!addr) {
addr = MemDbg::findBytes(bytes2, sizeof(bytes2), processStartAddress, processStartAddress + range);
if (!addr) {
ConsoleOutput("vnreng:TanukiSoft2: pattern not found");
return false;
}
}
HookParam hp = {};
hp.address = addr + 1;
hp.offset = 4 * 2; // arg2
hp.type = USING_STRING;
hp.address = addr;
hp.offset = pusha_esi_off -4;
hp.type = USING_STRING | NO_CONTEXT;
hp.filter_fun = Tanuki2Filter;
ConsoleOutput("vnreng: INSERT TanukiSoft2");
NewHook(hp, "TanukiSoft2");
return true;