/// <summary>
/// 创建一个 native Hooker
/// </summary>
/// <param name="libraryName">C/C++ 本地库名字</param>
/// <param name="symbol">方法符号</param>
/// <param name="replace">替换委托</param>
public NativeMethodHooker(string libraryName, string symbol, Delegate replace)
{
SetupJmpBuff();
IntPtr targetPtr = NativeAPI.miku_hooker_get_address(libraryName, symbol);
_headSize = (int)LDasm.SizeofMinNumByte(targetPtr.ToPointer(), s_jmpBuff.Length);
_proxyBuffSize = _headSize + s_jmpBuff.Length;
_targetPtr = targetPtr;
_replacPtr = Marshal.GetFunctionPointerForDelegate(replace);
_proxyPtr = (byte *)NativeAPI.miku_hooker_jit_alloc(IntPtr.Zero, _proxyBuffSize);
Install();
}
/// <summary>
/// 创建一个 Hooker
/// </summary>
/// <param name="target">需要替换的目标方法</param>
/// <param name="replace">准备好的替换方法</param>
private CSharpMethodHooker(MethodBase target, MethodBase replace, MethodBase proxy)
{
SetupJmpBuff();
IntPtr targetPtr = NativeAPI.GetFunctionAddr(target);
IntPtr replacePtr = NativeAPI.GetFunctionAddr(replace);
IntPtr proxyPtr = NativeAPI.GetFunctionAddr(proxy);
_headSize = (int)LDasm.SizeofMinNumByte(targetPtr.ToPointer(), s_jmpBuff.Length);
_proxyBuffSize = _headSize + s_jmpBuff.Length;
_proxyPtr = (byte *)proxyPtr.ToPointer();
_targetPtr = targetPtr;
_replacPtr = replacePtr;
Install();
}
