Add Mach-O UnknownCommand.

This command is a placeholder when LIEF does not a Mach-O load command

api/python/src/MachO/objects/CMakeLists.txt

@@ -1,46 +1,47 @@
 target_sources(pyLIEF PRIVATE
-  pyDylibCommand.cpp
   pyBinary.cpp
+  pyBindingInfo.cpp
+  pyBuildVersion.cpp
+  pyBuilder.cpp
+  pyChainedBindingInfo.cpp
+  pyCodeSignature.cpp
+  pyCodeSignatureDir.cpp
+  pyDataCodeEntry.cpp
+  pyDataInCode.cpp
+  pyDyldBindingInfo.cpp
+  pyDyldChainedFixups.cpp
+  pyDyldEnvironment.cpp
+  pyDyldExportsTrie.cpp
+  pyDyldInfo.cpp
+  pyDylibCommand.cpp
+  pyDylinker.cpp
+  pyDynamicSymbolCommand.cpp
+  pyEncryptionInfo.cpp
+  pyExportInfo.cpp
   pyFatBinary.cpp
-  pyLoadCommand.cpp
-  pySegmentCommand.cpp
+  pyFilesetCommand.cpp
+  pyFunctionStarts.cpp
   pyHeader.cpp
-  pySection.cpp
+  pyLinkerOptHint.cpp
+  pyLoadCommand.cpp
+  pyMainCommand.cpp
   pyParser.cpp
+  pyParserConfig.cpp
+  pyRPathCommand.cpp
+  pyRelocation.cpp
+  pyRelocationDyld.cpp
+  pyRelocationFixup.cpp
+  pyRelocationObject.cpp
+  pySection.cpp
+  pySegmentCommand.cpp
+  pySegmentSplitInfo.cpp
+  pySourceVersion.cpp
+  pySubFramework.cpp
   pySymbol.cpp
   pySymbolCommand.cpp
-  pyUUID.cpp
-  pySourceVersion.cpp
-  pyVersionMin.cpp
-  pyMainCommand.cpp
-  pyDylinker.cpp
-  pyDyldInfo.cpp
-  pyDyldChainedFixups.cpp
-  pyChainedBindingInfo.cpp
-  pyDyldBindingInfo.cpp
-  pyDyldExportsTrie.cpp
-  pyRelocationFixup.cpp
-  pyFunctionStarts.cpp
-  pyRelocation.cpp
-  pyRelocationObject.cpp
-  pyRelocationDyld.cpp
-  pyBindingInfo.cpp
-  pyExportInfo.cpp
   pyThreadCommand.cpp
-  pyRPathCommand.cpp
-  pyParserConfig.cpp
-  pyDynamicSymbolCommand.cpp
-  pyCodeSignature.cpp
-  pySegmentSplitInfo.cpp
-  pyDataInCode.cpp
-  pyDataCodeEntry.cpp
-  pySubFramework.cpp
-  pyDyldEnvironment.cpp
-  pyEncryptionInfo.cpp
-  pyBuildVersion.cpp
-  pyFilesetCommand.cpp
-  pyCodeSignatureDir.cpp
   pyTwoLevelHints.cpp
-  pyLinkerOptHint.cpp
-  pyBuilder.cpp
+  pyUUID.cpp
+  pyUnknownCommand.cpp
+  pyVersionMin.cpp
 )

api/python/src/MachO/objects/pyLoadCommand.cpp

@@ -116,6 +116,7 @@ void create<LoadCommand>(nb::module_& m) {
     .value(PY_ENUM(LoadCommand::TYPE::DYLD_EXPORTS_TRIE))
     .value(PY_ENUM(LoadCommand::TYPE::DYLD_CHAINED_FIXUPS))
     .value(PY_ENUM(LoadCommand::TYPE::FILESET_ENTRY))
+    .value(PY_ENUM(LoadCommand::TYPE::LIEF_UNKNOWN))
   #undef PY_ENUM
   ;
 

api/python/src/MachO/objects/pyUnknownCommand.cpp

@@ -0,0 +1,39 @@
+/* Copyright 2017 - 2024 R. Thomas
+ * Copyright 2017 - 2024 Quarkslab
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <string>
+#include <sstream>
+#include <nanobind/stl/string.h>
+#include <nanobind/stl/array.h>
+
+#include "LIEF/MachO/UnknownCommand.hpp"
+
+#include "MachO/pyMachO.hpp"
+
+namespace LIEF::MachO::py {
+
+template<>
+void create<UnknownCommand>(nb::module_& m) {
+
+  nb::class_<UnknownCommand, LoadCommand>(m, "UnknownCommand",
+      "Generic class when the command is not recognized by LIEF"_doc)
+
+    .def_prop_ro("original_command",
+        nb::overload_cast<>(&UnknownCommand::original_command, nb::const_))
+
+    LIEF_DEFAULT_STR(UnknownCommand);
+}
+
+}