92 lines
2.6 KiB
C#
92 lines
2.6 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.Collections.Generic;
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using dnlib.DotNet;
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using dnlib.DotNet.Emit;
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using de4dot.blocks;
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namespace de4dot.code.deobfuscators.DeepSea {
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static class DsUtils {
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public static IList<object> GetArgValues(IList<Instruction> instrs, int index) {
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return GetArgValues(DotNetUtils.GetArgPushes(instrs, index));
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}
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public static IList<object> GetArgValues(IList<Instruction> argInstrs) {
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if (argInstrs == null)
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return null;
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var args = new List<object>(argInstrs.Count);
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foreach (var argInstr in argInstrs) {
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object arg;
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GetArgValue(argInstr, out arg);
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args.Add(arg);
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}
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return args;
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}
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public static bool GetArgValue(MethodDef method, int index, out object arg) {
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return GetArgValue(method.Body.Instructions[index], out arg);
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}
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public static bool GetArgValue(Instruction instr, out object arg) {
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switch (instr.OpCode.Code) {
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case Code.Ldc_I4_S: arg = (int)(sbyte)instr.Operand; return true;
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case Code.Ldc_I4_M1: arg = -1; return true;
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case Code.Ldc_I4_0: arg = 0; return true;
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case Code.Ldc_I4_1: arg = 1; return true;
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case Code.Ldc_I4_2: arg = 2; return true;
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case Code.Ldc_I4_3: arg = 3; return true;
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case Code.Ldc_I4_4: arg = 4; return true;
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case Code.Ldc_I4_5: arg = 5; return true;
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case Code.Ldc_I4_6: arg = 6; return true;
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case Code.Ldc_I4_7: arg = 7; return true;
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case Code.Ldc_I4_8: arg = 8; return true;
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case Code.Ldnull: arg = null; return true;
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case Code.Ldstr:
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case Code.Ldc_I4:
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case Code.Ldc_I8:
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case Code.Ldc_R4:
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case Code.Ldc_R8:
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arg = instr.Operand;
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return true;
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case Code.Ldarg:
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case Code.Ldarg_S:
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case Code.Ldarg_0:
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case Code.Ldarg_1:
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case Code.Ldarg_2:
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case Code.Ldarg_3:
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case Code.Ldloc:
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case Code.Ldloc_S:
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case Code.Ldloc_0:
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case Code.Ldloc_1:
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case Code.Ldloc_2:
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case Code.Ldloc_3:
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arg = null;
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return true;
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default:
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arg = null;
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return false;
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}
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}
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}
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}
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