add fods fuzzer

Change-Id: I3cc5a0d8bb24dd33b63ed82866a4acfb7a2dd043
Reviewed-on: https://gerrit.libreoffice.org/42459
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

4 files changed, 97 insertions, 0 deletions

diff --git a/vcl/Executable_fodsfuzzer.mk b/vcl/Executable_fodsfuzzer.mk
new file mode 100644
index 000000000000..56ff868a7f74
--- /dev/null
+++ b/vcl/Executable_fodsfuzzer.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 $(call gb_Executable_Executable,fodsfuzzer))
+
+$(eval $(call gb_Executable_use_api,fodsfuzzer,\
+    offapi \
+    udkapi \
+))
+
+$(eval $(call gb_Executable_use_externals,fodsfuzzer,\
+	$(fuzzer_externals) \
+))
+
+$(eval $(call gb_Executable_set_include,fodsfuzzer,\
+    $$(INCLUDE) \
+    -I$(SRCDIR)/vcl/inc \
+))
+
+$(eval $(call gb_Executable_use_libraries,fodsfuzzer,\
+    $(fuzzer_calc_libraries) \
+    $(fuzzer_core_libraries) \
+))
+
+$(eval $(call gb_Executable_use_static_libraries,fodsfuzzer,\
+    findsofficepath \
+    ulingu \
+    fuzzer_calc \
+    fuzzerstubs \
+))
+
+$(eval $(call gb_Executable_add_exception_objects,fodsfuzzer,\
+	vcl/workben/fodsfuzzer \
+))
+
+$(eval $(call gb_Executable_add_libs,fodsfuzzer,\
+	-lFuzzingEngine \
+))
+
+# vim: set noet sw=4 ts=4:
diff --git a/vcl/Module_vcl.mk b/vcl/Module_vcl.mk
index 0906aab42b33..6cd31572c1c5 100644
--- a/vcl/Module_vcl.mk
+++ b/vcl/Module_vcl.mk
@@ -138,6 +138,7 @@ $(eval $(call gb_Module_add_targets,vcl,\
     Executable_qpwfuzzer \
     Executable_slkfuzzer \
     Executable_fodtfuzzer \
+    Executable_fodsfuzzer \
 ))
 endif
 
diff --git a/vcl/workben/fftester.cxx b/vcl/workben/fftester.cxx
index aaf05df5311e..4b9d6979ae54 100644
--- a/vcl/workben/fftester.cxx
+++ b/vcl/workben/fftester.cxx
@@ -393,6 +393,20 @@ try_again:
                 SvFileStream aFileStream(out, StreamMode::READ);
                 ret = (int) (*pfnImport)(aFileStream);
             }
+            else if (strcmp(argv[2], "fods") == 0)
+            {
+                static FFilterCall pfnImport(nullptr);
+                if (!pfnImport)
+                {
+                    osl::Module aLibrary;
+                    aLibrary.loadRelative(&thisModule, "libsclo.so", SAL_LOADMODULE_LAZY);
+                    pfnImport = reinterpret_cast<FFilterCall>(
+                        aLibrary.getFunctionSymbol("TestImportFODS"));
+                    aLibrary.release();
+                }
+                SvFileStream aFileStream(out, StreamMode::READ);
+                ret = (int) (*pfnImport)(aFileStream);
+            }
             else if (strcmp(argv[2], "xls") == 0)
             {
                 static WFilterCall pfnImport(nullptr);
diff --git a/vcl/workben/fodsfuzzer.cxx b/vcl/workben/fodsfuzzer.cxx
new file mode 100644
index 000000000000..b56a8e84f707
--- /dev/null
+++ b/vcl/workben/fodsfuzzer.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 TestImportFODS(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)TestImportFODS(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: */