mirror of
https://github.com/HIllya51/LunaHook.git
synced 2024-12-27 13:44:11 +08:00
105 lines
3.4 KiB
C++
105 lines
3.4 KiB
C++
#include "Anex86.h"
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namespace
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{ // unnamed, for Anex86
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BYTE JIS_tableH[0x80] = {
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0x00, 0x81, 0x81, 0x82, 0x82, 0x83, 0x83, 0x84,
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0x84, 0x85, 0x85, 0x86, 0x86, 0x87, 0x87, 0x88,
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0x88, 0x89, 0x89, 0x8a, 0x8a, 0x8b, 0x8b, 0x8c,
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0x8c, 0x8d, 0x8d, 0x8e, 0x8e, 0x8f, 0x8f, 0x90,
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0x90, 0x91, 0x91, 0x92, 0x92, 0x93, 0x93, 0x94,
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0x94, 0x95, 0x95, 0x96, 0x96, 0x97, 0x97, 0x98,
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0x98, 0x99, 0x99, 0x9a, 0x9a, 0x9b, 0x9b, 0x9c,
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0x9c, 0x9d, 0x9d, 0x9e, 0x9e, 0xdf, 0xdf, 0xe0,
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0xe0, 0xe1, 0xe1, 0xe2, 0xe2, 0xe3, 0xe3, 0xe4,
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0xe4, 0xe5, 0xe5, 0xe6, 0xe6, 0xe7, 0xe7, 0xe8,
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0xe8, 0xe9, 0xe9, 0xea, 0xea, 0xeb, 0xeb, 0xec,
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0xec, 0xed, 0xed, 0xee, 0xee, 0xef, 0xef, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
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BYTE JIS_tableL[0x80] = {
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46,
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0x47, 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e,
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0x4f, 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56,
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0x57, 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e,
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0x5f, 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66,
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0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e,
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0x6f, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76,
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0x77, 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e,
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0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
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0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
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0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
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0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x00};
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void SpecialHookAnex86(hook_stack *stack, HookParam *, uintptr_t *data, uintptr_t *split, size_t *len)
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{
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auto ecx = stack->ecx;
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if (*(BYTE *)(ecx + 0xe) != 0)
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return;
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auto lb = *(BYTE *)(ecx + 0xc);
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auto hb = *(BYTE *)(ecx + 0xd);
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if (hb == 0)
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{
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*data = lb;
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*len = 1;
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}
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else
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{
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if (hb <= 0x7e && lb <= 0x7e)
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{
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*len = 2;
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BYTE low;
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if ((hb & 1) == 0)
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low = lb + 0x7E;
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else
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low = JIS_tableL[lb];
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auto chr = low | (JIS_tableH[hb] << 8);
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*data = _byteswap_ushort(chr);
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}
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}
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}
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} // unnamed namespace
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bool InsertAnex86Hook()
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{
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const BYTE bytes[] = {
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0x8a, XX, 0x0c, // mov ??,[ecx+0C]
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0x8a, XX, 0x0d // mov ??,[ecx+0D]
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};
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bool found = false;
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for (auto addr : Util::SearchMemory(bytes, sizeof(bytes), PAGE_EXECUTE, processStartAddress, processStopAddress))
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{
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// const DWORD dwords[] = {0x618ac033,0x0d418a0c}; // jichi 12/25/2013: Remove static keyword
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// for (DWORD i = processStartAddress + 0x1000; i < processStopAddress - 8; i++)
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// if (*(DWORD *)i == dwords[0])
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// if (*(DWORD *)(i + 4) == dwords[1]) {
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HookParam hp;
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if (*(BYTE *)(addr - 2) == 0x33 || *(BYTE *)(addr - 2) == 0x31)
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addr = addr - 2;
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hp.address = addr;
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hp.offset = get_reg(regs::ecx);
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hp.type = USING_CHAR;
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hp.text_fun = SpecialHookAnex86;
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// hp.type = EXTERN_HOOK;
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ConsoleOutput("INSERT Anex86");
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found |= NewHook(hp, "Anex86");
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}
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if (found)
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return true;
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ConsoleOutput("Anex86: failed");
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return false;
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}
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bool Anex86::attach_function()
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{
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return InsertAnex86Hook();
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} |