selftest: Confirm that NDR bugs are fixed in DCOM code

Test input provided by Michael Hanselmann and found using Hongfuzz.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=13875
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>

python/samba/tests/blackbox/ndrdump.py

@@ -139,3 +139,62 @@ def test_ndrdump_fuzzed_clusapi_QueryAllValues(self):
         except BlackboxProcessError as e:
             self.fail(e)
         self.assertEqual(actual, expected)
+
+    def test_ndrdump_fuzzed_IOXIDResolver_ResolveOxid(self):
+        expected = '''pull returned Character Conversion Error
+'''
+        try:
+            actual = self.check_exit_code(
+                'ndrdump IOXIDResolver ResolveOxid out ' +\
+                '--base64-input --input=' +\
+                'c87PMf7CBAUAAAAADgQMBASjfPqKw0KPld6DY87PMfQ=',
+                2)
+        except BlackboxProcessError as e:
+            self.fail(e)
+        self.assertRegex(actual.decode('utf8'), expected + "$")
+
+    def test_ndrdump_fuzzed_IOXIDResolver_ResolveOxid2(self):
+        expected = '''pull returned Buffer Size Error
+'''
+        try:
+            actual = self.check_exit_code(
+                'ndrdump IOXIDResolver ResolveOxid2 out ' +\
+                '--base64-input --input=' +\
+                'AAAAAQ0K9Q0AAAAAAAAAA6ampqampqampqampqampqampqampqamNAAAAAAtNDQ=',
+                2)
+        except BlackboxProcessError as e:
+            self.fail(e)
+        self.assertRegex(actual.decode('utf8'), expected + "$")
+
+    def test_ndrdump_fuzzed_IOXIDResolver_ServerAlive2(self):
+        expected = b'''pull returned Success
+WARNING! 46 unread bytes
+[0000] 0D 36 0A 0A 0A 0A 0A 00   00 00 00 00 00 00 03 00   .6...... ........
+[0010] 00 00 01 00 00 33 39 36   31 36 31 37 37 36 38 34   .....396 16177684
+[0020] 32 34 FC 85 AC 49 0B 61   87 0A 0A 0A F5 00         24...I.a ......
+    ServerAlive: struct ServerAlive
+        out: struct ServerAlive
+            result                   : DOS code 0x01000000
+dump OK
+'''
+        try:
+            actual = self.check_output(
+                'ndrdump IOXIDResolver ServerAlive out ' +\
+                '--base64-input --input=' +\
+                'AAAAAQ02CgoKCgoAAAAAAAAAAwAAAAEAADM5NjE2MTc3Njg0MjT8haxJC2GHCgoK9QA=')
+        except BlackboxProcessError as e:
+            self.fail(e)
+        self.assertEqual(actual, expected)
+
+    def test_ndrdump_fuzzed_IRemoteActivation_RemoteActivation(self):
+        expected = '''pull returned Buffer Size Error
+'''
+        try:
+            actual = self.check_exit_code(
+                'ndrdump IRemoteActivation RemoteActivation out ' +\
+                '--base64-input --input=' +\
+                'AAAAAQAAAAAAAABKAAD/AAAAAP4AAAAAAAAASgAAAAAAAAABIiIjIiIiIiIiIiIiIiMiAAAAAAD/AAAAAAAA',
+                2)
+        except BlackboxProcessError as e:
+            self.fail(e)
+        self.assertRegex(actual.decode('utf8'), expected + "$")