75 lines
2.1 KiB
C#
75 lines
2.1 KiB
C#
/*
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Copyright (C) 2011-2015 de4dot@gmail.com
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This file is part of de4dot.
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de4dot is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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de4dot is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with de4dot. If not, see <http://www.gnu.org/licenses/>.
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*/
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using System;
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using dnlib.DotNet;
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using de4dot.blocks;
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namespace de4dot.code.deobfuscators.Agile_NET {
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class StackFrameHelper {
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ModuleDefMD module;
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TypeDef stackFrameHelperType;
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ExceptionLoggerRemover exceptionLoggerRemover = new ExceptionLoggerRemover();
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public TypeDef Type {
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get { return stackFrameHelperType; }
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}
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public ExceptionLoggerRemover ExceptionLoggerRemover {
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get { return exceptionLoggerRemover; }
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}
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public StackFrameHelper(ModuleDefMD module) {
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this.module = module;
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}
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public void Find() {
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foreach (var type in module.Types) {
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if (!type.HasMethods)
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continue;
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if (type.Methods.Count > 3)
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continue;
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MethodDef errorMethod = null;
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foreach (var method in type.Methods) {
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if (method.Name == ".ctor")
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continue; // .ctor is allowed
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if (method.Name == ".cctor")
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continue; // .cctor is allowed
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var sig = method.MethodSig;
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if (sig != null && method.IsStatic && method.HasBody &&
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sig.Params.Count == 2 && !method.HasGenericParameters &&
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!DotNetUtils.HasReturnValue(method) &&
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sig.Params[0].GetFullName() == "System.Exception" &&
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sig.Params[1].GetFullName() == "System.Object[]") {
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errorMethod = method;
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}
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else
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break;
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}
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if (errorMethod != null) {
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stackFrameHelperType = type;
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exceptionLoggerRemover.Add(errorMethod);
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return;
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}
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}
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}
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}
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}
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