fix: find gaps in the relocation for data inject

tests/test_rangemanager.py

@@ -0,0 +1,33 @@
+from typing import List
+import unittest
+import logging
+
+from pe.superpe import SuperPe
+from model.exehost import ExeHost
+from model.rangemanager import RangeManager
+
+
+class RangeManagerTest(unittest.TestCase):
+    def test_rangemanager(self):
+        rm = RangeManager(0, 100)
+        rm.add_range(0, 10)
+        rm.add_range(20, 30)
+        rm.add_range(50, 60)
+
+        hole = rm.find_hole(10)
+        self.assertEqual((11, 19), hole)
+
+        holes = rm.find_holes(20)
+        self.assertEqual([(31, 49), (61, 100)], holes)
+
+
+    def test_relocmanager(self):
+        exehost = ExeHost("data/exes/procexp64.exe")
+        exehost.init()
+        section = exehost.superpe.get_section_by_name(".rdata")
+        rm = exehost.get_rdata_relocmanager()
+        self.assertEqual(69, len(rm.intervals))
+        # 0x1ab0 is magic currently (should use find_first_utf16_string_offset()
+        #rm.add_range(section.virt_addr, section.virt_addr + 0x1AB0)
+        hole = rm.find_hole(20)
+        self.assertEqual(hole, (1167361, 1173015))