Updated MathExpression to handle all exceptions.

src/binwalk/common.py

@@ -111,11 +111,13 @@ class MathExpression(object):
 
 	def __init__(self, expression):
 		self.expression = expression
+		self.value = None
 
+		if expression:
 			try:
 				self.value = self.evaluate(self.expression)
-		except TypeError:
-			self.value = None
+			except:
+				pass
 
 	def evaluate(self, expr):
 		return self._eval(ast.parse(expr).body[0].value)

src/magic/archives

@@ -137,7 +137,7 @@
 #>>110	string		!TRAILER!!!	invalid
 >110	string		x		file name: "%s",
 >94	string		x		file name length: "0x%.8s",
->54	string		x		file size: "0x%.8s",
+>54	string		x		file size: "0x%.8s"
 >54	string		x		{jump-to-offset:0x%.8s+110+
 >94	string		x		\b0x%.8s}