mirror of
https://github.com/HIllya51/LunaHook.git
synced 2024-12-26 21:24:12 +08:00
49 lines
1.2 KiB
C++
49 lines
1.2 KiB
C++
#include"Ciel.h"
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bool CielFilter(LPVOID data, size_t *size, HookParam *)
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{
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auto text = reinterpret_cast<LPSTR>(data);
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auto len = reinterpret_cast<size_t *>(size);
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if (*len == 1) return false;
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//StringCharReplacer(text, len, "^n", 2, ' ');
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return true;
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}
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bool InsertCielHook()
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{
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/*
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* Sample games:
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* https://vndb.org/r26480
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* https://vndb.org/v1648
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* https://vndb.org/v10392
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*/
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const BYTE bytes[] = {
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0x50, // push eax << hook here
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0xE8, XX4, // call FaultA.exe+81032
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0x83, 0xC4, 0x04, // add esp,04
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0x85, 0xC0, // test eax,eax
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0x74, 0x32, // je FaultA.exe+41FA6
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0x81, 0x7C, 0x24, 0x10, XX4 // cmp [esp+10],000003FE
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};
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ULONG range = min(processStopAddress - processStartAddress, MAX_REL_ADDR);
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ULONG addr = MemDbg::findBytes(bytes, sizeof(bytes), processStartAddress, processStartAddress + range);
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if (!addr) return false;
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HookParam hp;
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hp.address = addr;
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hp.offset=get_reg(regs::edi);
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hp.index = 0;
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hp.type = DATA_INDIRECT;
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hp.filter_fun = CielFilter;
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return NewHook(hp, "Ciel");
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}
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bool Ciel::attach_function() {
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return InsertCielHook();
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}
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