mirror of
https://github.com/HIllya51/LunaHook.git
synced 2024-10-22 23:18:16 +08:00
61 lines
1.4 KiB
C++
61 lines
1.4 KiB
C++
#include"morning.h"
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regs mov_xl_exx(int reg) {
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auto off = regs::invalid;
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reg = reg & 7;
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switch (reg) {
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case 3:
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off = regs::ebx; break;
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case 0:
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off = regs::eax; break;
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case 1:
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off = regs::ecx; break;
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case 2:
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off = regs::edx; break;
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case 6:
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off = regs::esi; break;
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case 7:
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off = regs::edi; break;
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}
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return off;
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}
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bool shiftjis81() {
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//morning
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/*if (((unsigned __int8)*a7 < 0x81u || (unsigned __int8)*a7 > 0x9Fu)
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&& ((unsigned __int8)*a7 < 0xE0u || (unsigned __int8)*a7 > 0xFCu))*/
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const BYTE bytes81[] = {
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0x8A,XX,
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0x81,XX,0x81,0x00,0x00,0x00
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};
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const BYTE bytes81eax[] = {
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0x8A,XX,
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XX,0x81,0x00,0x00,0x00
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};
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int idx = 0;
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auto succ=false;
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for (auto bs : { bytes81,bytes81eax}) {
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for (auto addr : Util::SearchMemory(bs, idx ? 7 : 8, PAGE_EXECUTE, processStartAddress, processStopAddress)) {
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int jumpxxop = *(((BYTE*)addr) + (idx ? 7 : 8));
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if (jumpxxop < 0x7c || jumpxxop>0x7f)continue;
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auto off = mov_xl_exx(*(((BYTE*)addr) + 1));
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if (off == regs::invalid)continue;
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HookParam hp;
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hp.address = addr;
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hp.offset =get_reg(off);
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hp.type = USING_STRING | NO_CONTEXT;
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succ|=NewHook(hp, "shiftjis819fefc");
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}
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idx += 1;
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}
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return succ;
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}
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bool morning::attach_function() {
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return shiftjis81();
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}
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