add xls fuzzer

Change-Id: I7f57ad4f4294df43c3b9c8b3e6deb1641b102637
Reviewed-on: https://gerrit.libreoffice.org/44056
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

3 files changed, 101 insertions, 0 deletions

diff --git a/vcl/Executable_xlsfuzzer.mk b/vcl/Executable_xlsfuzzer.mk
new file mode 100644
index 000000000000..4ab6cc1182eb
--- /dev/null
+++ b/vcl/Executable_xlsfuzzer.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 $(call gb_Executable_Executable,xlsfuzzer))
+
+$(eval $(call gb_Executable_use_api,xlsfuzzer,\
+    offapi \
+    udkapi \
+))
+
+$(eval $(call gb_Executable_use_externals,xlsfuzzer,\
+	$(fuzzer_externals) \
+))
+
+$(eval $(call gb_Executable_set_include,xlsfuzzer,\
+    $$(INCLUDE) \
+    -I$(SRCDIR)/vcl/inc \
+))
+
+$(eval $(call gb_Executable_use_libraries,xlsfuzzer,\
+    $(fuzzer_calc_libraries) \
+    $(fuzzer_core_libraries) \
+))
+
+$(eval $(call gb_Executable_use_static_libraries,xlsfuzzer,\
+    findsofficepath \
+    ulingu \
+    fuzzer_calc \
+    fuzzerstubs \
+))
+
+$(eval $(call gb_Executable_add_exception_objects,xlsfuzzer,\
+	vcl/workben/xlsfuzzer \
+))
+
+$(eval $(call gb_Executable_add_libs,xlsfuzzer,\
+	-lFuzzingEngine \
+))
+
+# vim: set noet sw=4 ts=4:
diff --git a/vcl/Module_vcl.mk b/vcl/Module_vcl.mk
index a9cd5e158f13..3000befcafb7 100644
--- a/vcl/Module_vcl.mk
+++ b/vcl/Module_vcl.mk
@@ -146,6 +146,7 @@ $(eval $(call gb_Module_add_targets,vcl,\
     Executable_fodtfuzzer \
     Executable_fodsfuzzer \
     Executable_fodpfuzzer \
+    Executable_xlsfuzzer \
 ))
 endif
 
diff --git a/vcl/workben/xlsfuzzer.cxx b/vcl/workben/xlsfuzzer.cxx
new file mode 100644
index 000000000000..07eaa008caf4
--- /dev/null
+++ b/vcl/workben/xlsfuzzer.cxx
@@ -0,0 +1,51 @@
+/* -*- 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 <com/sun/star/ucb/XContentProvider.hpp>
+#include <com/sun/star/ucb/XUniversalContentBroker.hpp>
+#include "commonfuzzer.hxx"
+
+extern "C" bool TestImportXLS(SvStream &rStream);
+
+extern "C" int LLVMFuzzerInitialize(int *argc, char ***argv)
+{
+    if (__lsan_disable)
+        __lsan_disable();
+
+    CommonInitialize(argc, argv);
+
+    // initialise unconfigured UCB:
+    css::uno::Reference<css::ucb::XUniversalContentBroker> xUcb(comphelper::getProcessServiceFactory()->
+        createInstance("com.sun.star.ucb.UniversalContentBroker"), css::uno::UNO_QUERY_THROW);
+    css::uno::Sequence<css::uno::Any> aArgs(1);
+    aArgs[0] <<= OUString("NoConfig");
+    css::uno::Reference<css::ucb::XContentProvider> xFileProvider(comphelper::getProcessServiceFactory()->
+        createInstanceWithArguments("com.sun.star.ucb.FileContentProvider", aArgs), css::uno::UNO_QUERY_THROW);
+    xUcb->registerContentProvider(xFileProvider, "file", true);
+
+    if (__lsan_enable)
+        __lsan_enable();
+
+    return 0;
+}
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
+{
+    SvMemoryStream aStream(const_cast<uint8_t*>(data), size, StreamMode::READ);
+    (void)TestImportXLS(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: */