add dif fuzzer

Change-Id: I6f35cd5696ce6321ce5a729ffb9db9fdecfa61ac
Reviewed-on: https://gerrit.libreoffice.org/44526
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

3 files changed, 131 insertions, 0 deletions

diff --git a/vcl/Executable_diffuzzer.mk b/vcl/Executable_diffuzzer.mk
new file mode 100644
index 000000000000..03a05ee7c28c
--- /dev/null
+++ b/vcl/Executable_diffuzzer.mk
@@ -0,0 +1,48 @@
+# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
+#
+#
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+
+include $(SRCDIR)/vcl/commonfuzzer.mk
+
+$(eval $(call gb_Executable_Executable,diffuzzer))
+
+$(eval $(call gb_Executable_use_api,diffuzzer,\
+    offapi \
+    udkapi \
+))
+
+$(eval $(call gb_Executable_use_externals,diffuzzer,\
+	$(fuzzer_externals) \
+))
+
+$(eval $(call gb_Executable_set_include,diffuzzer,\
+    $$(INCLUDE) \
+    -I$(SRCDIR)/vcl/inc \
+))
+
+$(eval $(call gb_Executable_use_libraries,diffuzzer,\
+    $(fuzzer_calc_libraries) \
+    $(fuzzer_core_libraries) \
+))
+
+$(eval $(call gb_Executable_use_static_libraries,diffuzzer,\
+    findsofficepath \
+    ulingu \
+    fuzzerstubs \
+))
+
+$(eval $(call gb_Executable_add_exception_objects,diffuzzer,\
+	vcl/workben/diffuzzer \
+))
+
+$(eval $(call gb_Executable_add_libs,diffuzzer,\
+	-lFuzzingEngine \
+))
+
+# vim: set noet sw=4 ts=4:
diff --git a/vcl/Module_vcl.mk b/vcl/Module_vcl.mk
index 409be03c8855..e27b4db56ab9 100644
--- a/vcl/Module_vcl.mk
+++ b/vcl/Module_vcl.mk
@@ -155,6 +155,7 @@ $(eval $(call gb_Module_add_targets,vcl,\
     Executable_xlsfuzzer \
     Executable_scrtffuzzer \
     Executable_wksfuzzer \
+    Executable_diffuzzer \
 ))
 endif
 
diff --git a/vcl/workben/diffuzzer.cxx b/vcl/workben/diffuzzer.cxx
new file mode 100644
index 000000000000..42735bdb5a3c
--- /dev/null
+++ b/vcl/workben/diffuzzer.cxx
@@ -0,0 +1,82 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include <tools/stream.hxx>
+#include "commonfuzzer.hxx"
+
+#include <config_features.h>
+#include <osl/detail/component-mapping.h>
+
+extern "C" {
+void* i18npool_component_getFactory(const char*, void*, void*);
+
+void* com_sun_star_i18n_LocaleDataImpl_get_implementation(void*, void*);
+void* com_sun_star_i18n_BreakIterator_Unicode_get_implementation(void*, void*);
+void* com_sun_star_i18n_BreakIterator_get_implementation(void*, void*);
+void* com_sun_star_comp_framework_Desktop_get_implementation(void*, void*);
+void* com_sun_star_i18n_CharacterClassification_Unicode_get_implementation(void*, void*);
+void* com_sun_star_i18n_CharacterClassification_get_implementation(void*, void*);
+void* com_sun_star_i18n_Collator_get_implementation(void*, void*);
+void* com_sun_star_i18n_NativeNumberSupplier_get_implementation(void*, void*);
+void* com_sun_star_i18n_NumberFormatCodeMapper_get_implementation(void*, void*);
+void* com_sun_star_i18n_Transliteration_get_implementation(void*, void*);
+}
+
+const lib_to_factory_mapping* lo_get_factory_map(void)
+{
+    static lib_to_factory_mapping map[]
+        = { { "libi18npoollo.a", i18npool_component_getFactory }, { 0, 0 } };
+
+    return map;
+}
+
+const lib_to_constructor_mapping* lo_get_constructor_map(void)
+{
+    static lib_to_constructor_mapping map[]
+        = { { "com_sun_star_i18n_LocaleDataImpl_get_implementation",
+              com_sun_star_i18n_LocaleDataImpl_get_implementation },
+            { "com_sun_star_i18n_BreakIterator_Unicode_get_implementation",
+              com_sun_star_i18n_BreakIterator_Unicode_get_implementation },
+            { "com_sun_star_i18n_BreakIterator_get_implementation",
+              com_sun_star_i18n_BreakIterator_get_implementation },
+            { "com_sun_star_comp_framework_Desktop_get_implementation",
+              com_sun_star_comp_framework_Desktop_get_implementation },
+            { "com_sun_star_i18n_CharacterClassification_Unicode_get_implementation",
+              com_sun_star_i18n_CharacterClassification_Unicode_get_implementation },
+            { "com_sun_star_i18n_CharacterClassification_get_implementation",
+              com_sun_star_i18n_CharacterClassification_get_implementation },
+            { "com_sun_star_i18n_Collator_get_implementation",
+              com_sun_star_i18n_Collator_get_implementation },
+            { "com_sun_star_i18n_NativeNumberSupplier_get_implementation",
+              com_sun_star_i18n_NativeNumberSupplier_get_implementation },
+            { "com_sun_star_i18n_NumberFormatCodeMapper_get_implementation",
+              com_sun_star_i18n_NumberFormatCodeMapper_get_implementation },
+            { "com_sun_star_i18n_Transliteration_get_implementation",
+              com_sun_star_i18n_Transliteration_get_implementation },
+            { 0, 0 } };
+
+    return map;
+}
+
+extern "C" bool TestImportDIF(SvStream& rStream);
+
+extern "C" int LLVMFuzzerInitialize(int* argc, char*** argv)
+{
+    TypicalFuzzerInitialize(argc, argv);
+    return 0;
+}
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
+{
+    SvMemoryStream aStream(const_cast<uint8_t*>(data), size, StreamMode::READ);
+    (void)TestImportDIF(aStream);
+    return 0;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */