mirror of
https://github.com/HIllya51/LunaHook.git
synced 2024-10-22 23:18:16 +08:00
100 lines
3.0 KiB
C++
100 lines
3.0 KiB
C++
#include"Anex86.h"
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namespace { // 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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};
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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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};
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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)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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*data=lb;
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*len=1;
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}
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else{
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if(hb<=0x7e&&lb<=0x7e){
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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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//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) 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) 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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return InsertAnex86Hook();
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}
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