mirror of
https://github.com/HIllya51/LunaHook.git
synced 2024-11-24 22:35:36 +08:00
119 lines
3.5 KiB
C++
119 lines
3.5 KiB
C++
#include"PONScripter.h"
|
|
|
|
bool InsertPONScripterHook()
|
|
{
|
|
if (DWORD str = MemDbg::findBytes("CBString::Failure in (CBString", 30, processStartAddress, processStopAddress))
|
|
{
|
|
if (DWORD calledAt = MemDbg::findBytes(&str, sizeof(str), processStartAddress, processStopAddress))
|
|
{
|
|
DWORD funcs[] = { 0xec8b55, 0xe58955 };
|
|
DWORD addr = MemDbg::findBytes(funcs, 3, calledAt - 0x100, calledAt);
|
|
if (!addr) addr = MemDbg::findBytes(funcs + 1, 3, calledAt - 0x100, calledAt);
|
|
if (addr)
|
|
{
|
|
HookParam hp;
|
|
hp.address = addr;
|
|
hp.type = USING_STRING | CODEC_UTF8 | DATA_INDIRECT;
|
|
hp.offset=get_stack(1);
|
|
hp.index = 0xc;
|
|
return NewHook(hp, "PONScripter");
|
|
}
|
|
else ConsoleOutput("failed to find function start");
|
|
}
|
|
else ConsoleOutput("failed to find string reference");
|
|
}
|
|
else ConsoleOutput("failed to find string");
|
|
return false;
|
|
}
|
|
bool PONScripterFilter(LPVOID data, size_t *size, HookParam *)
|
|
{
|
|
auto text = reinterpret_cast<LPSTR>(data);
|
|
auto len = reinterpret_cast<size_t *>(size);
|
|
static std::string prevText;
|
|
|
|
for (int i=0; i<*len; i++) {
|
|
if (text[i] == '^' || text[i]=='@' || text[i]=='\\' || text[i]=='\n') {
|
|
text[i] = '\0';
|
|
*len = i;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!prevText.compare(text))
|
|
return false;
|
|
prevText = text;
|
|
|
|
StringFilter(text, len, "#", 7); // remove # followed by 6 chars
|
|
|
|
return true;
|
|
}
|
|
|
|
bool InsertPONScripterEngHook()
|
|
{
|
|
|
|
/*
|
|
* Sample games:
|
|
* https://vndb.org/v24770
|
|
*/
|
|
const BYTE bytes[] = {
|
|
0x89, 0xD0, // mov eax,edx
|
|
0x8D, 0x75, 0xD8, // lea esi,[ebp-28]
|
|
0x89, 0x55, 0xB4, // mov [ebp-4C],edx
|
|
0x83, 0xC0, 0x01, // add eax,01
|
|
0x89, 0x45, 0xC0 // mov [ebp-40],eax << hook here
|
|
};
|
|
enum { addr_offset = sizeof(bytes) - 3 };
|
|
|
|
ULONG range = min(processStopAddress - processStartAddress, MAX_REL_ADDR);
|
|
ULONG addr = MemDbg::findBytes(bytes, sizeof(bytes), processStartAddress, processStartAddress + range);
|
|
if (!addr) {
|
|
ConsoleOutput("PONScripterEng: pattern not found");
|
|
return false;
|
|
}
|
|
|
|
HookParam hp;
|
|
hp.address = addr + addr_offset;
|
|
hp.offset=get_reg(regs::eax);
|
|
hp.type = USING_STRING|CODEC_UTF8;
|
|
hp.filter_fun = PONScripterFilter;
|
|
ConsoleOutput("INSERT PONScripterEng");
|
|
return NewHook(hp, "PONScripterEng");
|
|
}
|
|
|
|
bool InsertPONScripterJapHook()
|
|
{
|
|
|
|
/*
|
|
* Sample games:
|
|
* https://vndb.org/v24770
|
|
*/
|
|
const BYTE bytes[] = {
|
|
0x8D, 0x87, XX4, // lea eax,[edi+00000198] << hook here
|
|
0x8B, 0x0D, XX4, // mov ecx,[ciconia_phase1.exe+3D82C0]
|
|
0x89, 0x55, 0xB4, // mov [ebp-4C],edx
|
|
0xC6, 0x45, 0xAE, 0x00, // mov byte ptr [ebp-52],00
|
|
0x89, 0x45, 0xA4, // mov [ebp-5C],eax
|
|
0x8B, 0x01, // mov eax,[ecx]
|
|
0x8B, 0x75, 0xB4 // mov esi,[ebp-4C]
|
|
};
|
|
|
|
ULONG range = min(processStopAddress - processStartAddress, MAX_REL_ADDR);
|
|
ULONG addr = MemDbg::findBytes(bytes, sizeof(bytes), processStartAddress, processStartAddress + range);
|
|
if (!addr) {
|
|
ConsoleOutput("PONScripterJap: pattern not found");
|
|
return false;
|
|
}
|
|
|
|
HookParam hp;
|
|
hp.address = addr;
|
|
hp.offset=get_reg(regs::edx);
|
|
hp.type = USING_STRING|CODEC_UTF8;
|
|
hp.filter_fun = PONScripterFilter;
|
|
ConsoleOutput("INSERT PONScripterJap");
|
|
return NewHook(hp, "PONScripterJap");
|
|
}
|
|
bool PONScripter::attach_function() {
|
|
|
|
bool ok = InsertPONScripterEngHook() && InsertPONScripterJapHook();
|
|
return ok || InsertPONScripterHook(); // If a language hook is missing, the original code is executed
|
|
}
|