106 lines
2.4 KiB
C#
106 lines
2.4 KiB
C#
/*
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Copyright (C) 2011-2012 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 System.Collections.Generic;
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using dot10.DotNet;
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using dot10.DotNet.Emit;
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namespace de4dot.code.deobfuscators {
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class StringCounts {
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Dictionary<string, int> strings = new Dictionary<string, int>(StringComparer.Ordinal);
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public IEnumerable<string> Strings {
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get { return strings.Keys; }
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}
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public int NumStrings {
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get { return strings.Count; }
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}
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public void add(string s) {
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int count;
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strings.TryGetValue(s, out count);
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strings[s] = count + 1;
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}
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public bool exists(string s) {
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if (s == null)
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return false;
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return strings.ContainsKey(s);
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}
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public bool all(IList<string> list) {
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foreach (var s in list) {
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if (!exists(s))
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return false;
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}
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return true;
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}
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public bool exactly(IList<string> list) {
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return list.Count == strings.Count && all(list);
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}
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public int count(string s) {
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int count;
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strings.TryGetValue(s, out count);
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return count;
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}
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}
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class FieldTypes : StringCounts {
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public FieldTypes(TypeDef type) {
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init(type.Fields);
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}
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public FieldTypes(IEnumerable<FieldDef> fields) {
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init(fields);
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}
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void init(IEnumerable<FieldDef> fields) {
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if (fields == null)
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return;
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foreach (var field in fields) {
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var type = field.FieldSig.GetFieldType();
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if (type != null)
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add(type.FullName);
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}
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}
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}
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class LocalTypes : StringCounts {
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public LocalTypes(MethodDef method) {
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if (method != null && method.Body != null)
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init(method.Body.Variables);
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}
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public LocalTypes(IEnumerable<Local> locals) {
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init(locals);
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}
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void init(IEnumerable<Local> locals) {
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if (locals == null)
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return;
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foreach (var local in locals)
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add(local.Type.FullName);
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}
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}
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}
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