add xlsx fuzzer

Change-Id: Icce1317dc3ccfb598ce07ee61eddd873f1f98222
Reviewed-on: https://gerrit.libreoffice.org/45481
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

3 files changed, 83 insertions, 0 deletions

diff --git a/vcl/Executable_xlsxfuzzer.mk b/vcl/Executable_xlsxfuzzer.mk
new file mode 100644
index 000000000000..5040033a5daa
--- /dev/null
+++ b/vcl/Executable_xlsxfuzzer.mk
@@ -0,0 +1,49 @@
+# -*- 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 $(call gb_Executable_Executable,xlsxfuzzer))
+
+$(eval $(call gb_Executable_use_api,xlsxfuzzer,\
+    offapi \
+    udkapi \
+))
+
+$(eval $(call gb_Executable_use_externals,xlsxfuzzer,\
+	$(fuzzer_externals) \
+))
+
+$(eval $(call gb_Executable_set_include,xlsxfuzzer,\
+    $$(INCLUDE) \
+    -I$(SRCDIR)/vcl/inc \
+))
+
+$(eval $(call gb_Executable_use_libraries,xlsxfuzzer,\
+    $(fuzzer_calc_libraries) \
+    $(fuzzer_core_libraries) \
+))
+
+$(eval $(call gb_Executable_use_static_libraries,xlsxfuzzer,\
+    findsofficepath \
+    ulingu \
+    fuzzer_calc \
+    fuzzerstubs \
+))
+
+$(eval $(call gb_Executable_add_exception_objects,xlsxfuzzer,\
+	vcl/workben/xlsxfuzzer \
+))
+
+$(eval $(call gb_Executable_add_libs,xlsxfuzzer,\
+	-lFuzzingEngine \
+))
+
+# vim: set noet sw=4 ts=4:
diff --git a/vcl/Module_vcl.mk b/vcl/Module_vcl.mk
index d184d1a9765e..77a621f37a4e 100644
--- a/vcl/Module_vcl.mk
+++ b/vcl/Module_vcl.mk
@@ -157,6 +157,7 @@ $(eval $(call gb_Module_add_targets,vcl,\
     Executable_wksfuzzer \
     Executable_diffuzzer \
     Executable_docxfuzzer \
+    Executable_xlsxfuzzer \
 ))
 endif
 
diff --git a/vcl/workben/xlsxfuzzer.cxx b/vcl/workben/xlsxfuzzer.cxx
new file mode 100644
index 000000000000..ae4d74fed9cf
--- /dev/null
+++ b/vcl/workben/xlsxfuzzer.cxx
@@ -0,0 +1,33 @@
+/* -*- 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 <vcl/FilterConfigItem.hxx>
+#include "commonfuzzer.hxx"
+
+extern "C" bool TestImportXLSX(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)TestImportXLSX(aStream);
+    //fontconfigs alloc mechanism is too complicated for lsan/valgrind so
+    //force the fontconfig options to be released now, they are demand loaded
+    //so will be recreated if necessary
+    SvpSalGraphics::getPlatformGlyphCache().ClearFontOptions();
+    return 0;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */