From 54437b90157beea59678f6cc66bce35ba118ffa4 Mon Sep 17 00:00:00 2001
From: Max Moroz <mmoroz@chromium.org>
Date: Wed, 12 Oct 2016 19:35:32 +0200
Subject: [PATCH] Add convert_woff2ttf_fuzzer fuzzer for woff2.

---
 woff2/Dockerfile                      | 21 ++++++++++++++
 woff2/Jenkinsfile                     | 23 +++++++++++++++
 woff2/build.sh                        | 41 +++++++++++++++++++++++++++
 woff2/convert_woff2ttf_fuzzer.cc      | 17 +++++++++++
 woff2/convert_woff2ttf_fuzzer.options |  2 ++
 5 files changed, 104 insertions(+)
 create mode 100644 woff2/Dockerfile
 create mode 100644 woff2/Jenkinsfile
 create mode 100755 woff2/build.sh
 create mode 100644 woff2/convert_woff2ttf_fuzzer.cc
 create mode 100644 woff2/convert_woff2ttf_fuzzer.options

diff --git a/woff2/Dockerfile b/woff2/Dockerfile
new file mode 100644
index 000000000..24a2b0805
--- /dev/null
+++ b/woff2/Dockerfile
@@ -0,0 +1,21 @@
+# Copyright 2016 Google Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+################################################################################
+
+FROM ossfuzz/base-libfuzzer
+MAINTAINER mmoroz@chromium.org
+RUN apt-get install -y make autoconf automake libtool
+
+COPY build.sh /src/
diff --git a/woff2/Jenkinsfile b/woff2/Jenkinsfile
new file mode 100644
index 000000000..114765ff4
--- /dev/null
+++ b/woff2/Jenkinsfile
@@ -0,0 +1,23 @@
+// Copyright 2016 Google Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+////////////////////////////////////////////////////////////////////////////////
+
+def libfuzzerBuild = fileLoader.fromGit('infra/libfuzzer-pipeline.groovy',
+                                        'https://github.com/google/oss-fuzz.git',
+                                        'master', null, '')
+
+libfuzzerBuild {
+  git = "https://github.com/google/woff2"
+}
diff --git a/woff2/build.sh b/woff2/build.sh
new file mode 100755
index 000000000..2fa2d982c
--- /dev/null
+++ b/woff2/build.sh
@@ -0,0 +1,41 @@
+#!/bin/bash -eu
+# Copyright 2016 Google Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+################################################################################
+
+cd /src/woff2
+
+# Build the library. Actually there is no 'library' target, so we use .o files.
+# '-no-canonical-prefixes' flag makes clang crazy. Need to avoid it.
+cat brotli/shared.mk | sed -e "s/-no-canonical-prefixes//" \
+> brotli/shared.mk.temp
+mv brotli/shared.mk.temp brotli/shared.mk
+
+cat Makefile | sed -e "s/-no-canonical-prefixes//" \
+> Makefile.temp
+mv Makefile.temp Makefile
+
+# woff2 uses LFLAGS instead of LDFLAGS.
+export LFLAGS=$LDFLAGS
+make CC="$CC $CFLAGS" CXX="$CXX $CXXFLAGS" clean all
+
+# To avoid multiple main() definitions.
+rm src/woff2_compress.o src/woff2_decompress.o
+
+# Build the fuzzer.
+fuzzer=convert_woff2ttf_fuzzer
+$CXX $CXXFLAGS -std=c++11 -Isrc \
+    /src/oss-fuzz/woff2/$fuzzer.cc -o /out/$fuzzer \
+    /work/libfuzzer/*.o src/*.o brotli/dec/*.o brotli/enc/*.o $LDFLAGS
diff --git a/woff2/convert_woff2ttf_fuzzer.cc b/woff2/convert_woff2ttf_fuzzer.cc
new file mode 100644
index 000000000..1c81e32e1
--- /dev/null
+++ b/woff2/convert_woff2ttf_fuzzer.cc
@@ -0,0 +1,17 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include "woff2_dec.h"
+
+// Entry point for LibFuzzer.
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
+  std::string buf;
+  woff2::WOFF2StringOut out(&buf);
+  out.SetMaxSize(30 * 1024 * 1024);
+  woff2::ConvertWOFF2ToTTF(data, size, &out);
+  return 0;
+}
diff --git a/woff2/convert_woff2ttf_fuzzer.options b/woff2/convert_woff2ttf_fuzzer.options
new file mode 100644
index 000000000..e5ae71b93
--- /dev/null
+++ b/woff2/convert_woff2ttf_fuzzer.options
@@ -0,0 +1,2 @@
+[libfuzzer]
+max_len = 1000000