1 files changed, 153 insertions, 0 deletions
diff --git a/vcl/workben/commonfuzzer.hxx b/vcl/workben/commonfuzzer.hxx
new file mode 100644
index 000000000..c9afd6555
--- /dev/null
+++ b/vcl/workben/commonfuzzer.hxx
@@ -0,0 +1,153 @@
+/* -*- 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 <sal/main.h>
+#include <tools/extendapplicationenvironment.hxx>
+
+#include <cppuhelper/bootstrap.hxx>
+#include <comphelper/processfactory.hxx>
+
+#include <com/sun/star/lang/XMultiServiceFactory.hpp>
+#include <com/sun/star/uno/XComponentContext.hpp>
+#include <unotools/configmgr.hxx>
+#include <rtl/bootstrap.hxx>
+#include <rtl/strbuf.hxx>
+#include <osl/file.hxx>
+#include <osl/process.h>
+#include <vcl/graph.hxx>
+#include <vcl/print.hxx>
+#include <vcl/svapp.hxx>
+#include <vcl/wmf.hxx>
+#include <unistd.h>
+#include <stdlib.h>
+#include "headless/svpgdi.hxx"
+#include "unx/fontmanager.hxx"
+#include "unx/glyphcache.hxx"
+
+using namespace ::com::sun::star::uno;
+using namespace ::com::sun::star::lang;
+using namespace cppu;
+
+namespace
+{
+    OUString getExecutableDir()
+    {
+        OUString uri;
+        if (osl_getExecutableFile(&uri.pData) != osl_Process_E_None) {
+            abort();
+        }
+        sal_Int32 lastDirSeparatorPos = uri.lastIndexOf('/');
+        if (lastDirSeparatorPos >= 0) {
+            uri = uri.copy(0, lastDirSeparatorPos + 1);
+        }
+        return uri;
+    }
+
+    OUString getExecutableName()
+    {
+        OUString uri;
+        if (osl_getExecutableFile(&uri.pData) != osl_Process_E_None) {
+            abort();
+        }
+        return uri.copy(uri.lastIndexOf('/') + 1);
+    }
+
+    void setFontConfigConf(const OUString &execdir)
+    {
+        osl::File aFontConfig("file:///tmp/wmffuzzerfonts.conf");
+        if (aFontConfig.open(osl_File_OpenFlag_Create | osl_File_OpenFlag_Write) == osl::File::E_None)
+        {
+            OUString sExecDir;
+            osl::FileBase::getSystemPathFromFileURL(execdir, sExecDir);
+
+            OStringBuffer aBuffer("<?xml version=\"1.0\"?>\n<fontconfig><dir>");
+            aBuffer.append(OUStringToOString(sExecDir, osl_getThreadTextEncoding()))
+                   .append(OUStringToOString(getExecutableName(), osl_getThreadTextEncoding())).append(".fonts");
+            aBuffer.append("</dir><cachedir>/tmp/cache/fontconfig</cachedir></fontconfig>");
+            OString aConf = aBuffer.makeStringAndClear();
+            sal_uInt64 aBytesWritten;
+            aFontConfig.write(aConf.getStr(), aConf.getLength(), aBytesWritten);
+            assert(aBytesWritten == aConf.getLength());
+        }
+        setenv("FONTCONFIG_FILE", "/tmp/wmffuzzerfonts.conf", 0);
+    }
+}
+
+extern "C"
+{
+    __attribute__((weak)) void __lsan_disable();
+    __attribute__((weak)) void __lsan_enable();
+}
+
+void CommonInitialize(int *argc, char ***argv)
+{
+    setenv("SAL_USE_VCLPLUGIN", "svp", 1);
+    setenv("JPEGMEM", "768M", 1);
+    setenv("JSIMD_FORCENONE", "1", 1); // https://github.com/libjpeg-turbo/libjpeg-turbo/issues/253
+    setenv("SC_MAX_MATRIX_ELEMENTS", "60000000", 1);
+    setenv("SC_NO_THREADED_CALCULATION", "1", 1);
+    setenv("SAL_DISABLE_PRINTERLIST", "1", 1);
+    setenv("SAL_DISABLE_DEFAULTPRINTER", "1", 1);
+    setenv("SAL_NO_FONT_LOOKUP", "1", 1);
+    setenv("SAX_DISABLE_THREADS", "1", 1);
+
+    //allow bubbling of max input len to fuzzer targets
+    int nMaxLen = 0;
+    for (int i = 0; i < *argc; ++i)
+    {
+        if (strncmp((*argv)[i], "-max_len=", 9) == 0)
+            nMaxLen = atoi((*argv)[i] + 9);
+    }
+    setenv("FUZZ_MAX_INPUT_LEN", "1", nMaxLen);
+
+    osl_setCommandArgs(*argc, *argv);
+
+    OUString sExecDir = getExecutableDir();
+    rtl::Bootstrap::set("BRAND_BASE_DIR", sExecDir);
+    setFontConfigConf(sExecDir);
+
+    tools::extendApplicationEnvironment();
+
+    Reference< XComponentContext > xContext =
+        defaultBootstrap_InitialComponentContext(sExecDir + getExecutableName() + ".unorc");
+    Reference< XMultiServiceFactory > xServiceManager( xContext->getServiceManager(), UNO_QUERY );
+    if( !xServiceManager.is() )
+        Application::Abort( "Failed to bootstrap" );
+    comphelper::setProcessServiceFactory( xServiceManager );
+    utl::ConfigManager::EnableFuzzing();
+    Application::EnableHeadlessMode(false);
+    InitVCL();
+
+    //we don't have a de-init, so inside this leak disabled region...
+    //get the font info
+    psp::PrintFontManager::get();
+    //get the printer info
+    Printer::GetPrinterQueues();
+
+    //https://github.com/google/oss-fuzz/issues/1449
+    //https://github.com/google/oss-fuzz/issues/5441
+    //release the solarmutex so a fork can acquire it which should
+    //allow these fuzzers to work without AFL_DRIVER_DONT_DEFER set
+    //removing the confusion of #5441 and the need for AFL_DRIVER_DONT_DEFER
+    //in .options files
+    Application::ReleaseSolarMutex();
+}
+
+void TypicalFuzzerInitialize(int *argc, char ***argv)
+{
+    if (__lsan_disable)
+        __lsan_disable();
+
+    CommonInitialize(argc, argv);
+
+    if (__lsan_enable)
+        __lsan_enable();
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */