LunaHook-mirror/LunaHook/engine64/CMVS.cpp

#include"CMVS.h"
 namespace{
bool EMbed(){
  //有多个，但是只有最后一个是有效的
  const uint8_t bytes[] = {
    0xB8,0x42,0x81,0x00,0x00,
    0x66,XX2,0x74,XX,
    0xB8,0x76,0x81,0x00,0x00,
    0x66,XX2,0x74,XX,
    0xB8,0x78,0x81,0x00,0x00,
    0x66,XX2,0x74,XX,
  };
  bool res=false;
  auto addr=processStartAddress;
   
  std::vector<uintptr_t>already;
  
  while(addr){ 
      addr = MemDbg::findBytes(bytes,sizeof(bytes),addr+1,processStopAddress);
      if(addr==0)continue;
      auto f = MemDbg::findEnclosingAlignedFunction(addr);
      if(f==0)continue;
      if(std::find(already.begin(),already.end(),f)!=already.end())continue;
      already.push_back(f);
      
  }
  if(already.size()){
    HookParam hp;
      hp.address = already.back() ;
      hp.offset=get_reg(regs::rdx);
       
      hp.type=EMBED_ABLE|USING_STRING|EMBED_BEFORE_SIMPLE|EMBED_AFTER_NEW|EMBED_DYNA_SJIS;
      hp.hook_font=F_GetGlyphOutlineA;
      res|=NewHook(hp, "EmbedCMVS"); 
  }
  return res;
}

bool CMVSh() {
    
  DWORD align = 0xCCCCCCCC;
  auto addr = MemDbg::findCallerAddress((uintptr_t)::GetGlyphOutlineA, align, processStartAddress, processStopAddress);
  if (!addr)  return false; 

  HookParam hp;
  hp.address = addr+4;
  hp.offset=get_reg(regs::r8);
  hp.type = CODEC_ANSI_BE;

  return NewHook(hp, "CMVS");
}  
}
bool CMVS::attach_function(){
  bool b1=CMVSh();
  bool b2=EMbed();
  return b1||b2;
}