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Check op for null and update detection code

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This commit is contained in:
de4dot 2011-11-01 18:47:26 +01:00
parent 6f4447aa98
commit 7bdea53134
1 changed files with 8 additions and 2 deletions
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10
de4dot.code/deobfuscators/dotNET_Reactor/MetadataTokenObfuscator.cs
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@ -51,9 +51,13 @@ namespace de4dot.deobfuscators.dotNET_Reactor {
MethodDefinition fieldMethod = null, typeMethod = null;
foreach (var method in type.Methods) {
if (DotNetUtils.isMethod(method, "System.RuntimeTypeHandle", "(System.Int32)"))
if (method.Parameters.Count != 1)
continue;
if (method.Parameters[0].ParameterType.FullName != "System.Int32")
continue;
if (method.MethodReturnType.ReturnType.FullName == "System.RuntimeTypeHandle")
typeMethod = method;
else if (DotNetUtils.isMethod(method, "System.RuntimeFieldHandle", "(System.Int32)"))
else if (method.MethodReturnType.ReturnType.FullName == "System.RuntimeFieldHandle")
fieldMethod = method;
}
@ -81,6 +85,8 @@ namespace de4dot.deobfuscators.dotNET_Reactor {
if (call.OpCode.Code != Code.Call)
continue;
var method = call.Operand as MethodReference;
if (method == null)
continue;
if (!MemberReferenceHelper.compareTypes(type, method.DeclaringType))
continue;
var methodDef = DotNetUtils.getMethod(module, method);