Fixed hexdiff colorization bug

src/binwalk/modules/hexdiff.py

@@ -82,11 +82,17 @@ class HexDiff(Module):
         return False
 
     def hexascii(self, target_data, byte, offset):
+        color = "green"
+
+        for (fp_i, data_i) in iterator(target_data):
             diff_count = 0
 
-        for (fp, data) in iterator(target_data):
+            for (fp_j, data_j) in iterator(target_data):
+                if fp_i == fp_j:
+                    continue
+
                 try:
-                if data[offset] != byte:
+                    if data_i[offset] != data_j[offset]:
                         diff_count += 1
                 except IndexError as e:
                     diff_count += 1
@@ -95,8 +101,7 @@ class HexDiff(Module):
                 color = "red"
             elif diff_count > 0:
                 color = "blue"
-        else:
-            color = "green"
+                break
 
         hexbyte = self.colorize("%.2X" % ord(byte), color)