update assimp to 6.0.5

Engine/lib/assimp/fuzz/ossfuzz/Dockerfile

@@ -0,0 +1,22 @@
+# Copyright 2021 Google LLC
+#
+# 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 gcr.io/oss-fuzz-base/base-builder
+RUN apt-get update && apt-get install -y make autoconf automake libtool ninja-build cmake zip
+
+RUN git clone --depth 1 https://github.com/assimp/assimp.git assimp
+WORKDIR assimp
+COPY build.sh $SRC/

Engine/lib/assimp/fuzz/ossfuzz/build.sh

@@ -0,0 +1,100 @@
+#!/bin/bash -eu
+
+# Build directory
+mkdir -p build
+cd build
+
+# Configure
+cmake .. \
+  -G Ninja \
+  -DCMAKE_C_COMPILER="${CC}" \
+  -DCMAKE_CXX_COMPILER="${CXX}" \
+  -DCMAKE_C_FLAGS="${CFLAGS}" \
+  -DCMAKE_CXX_FLAGS="${CXXFLAGS}" \
+  -DASSIMP_BUILD_ZLIB=ON \
+  -DASSIMP_BUILD_TESTS=OFF \
+  -DASSIMP_BUILD_ASSIMP_TOOLS=OFF \
+  -DBUILD_SHARED_LIBS=OFF \
+  -DASSIMP_BUILD_ALL_IMPORTERS_BY_DEFAULT=ON \
+  -DASSIMP_BUILD_ALL_EXPORTERS_BY_DEFAULT=ON
+
+# Build the library
+ninja
+
+# Helper function to build fuzzers
+build_fuzzer() {
+    local fuzzer_name=$1
+    local source_file=$2
+
+    echo "Building $fuzzer_name..."
+    $CXX $CXXFLAGS -I../include -I../build/include -c "$source_file" -o "${fuzzer_name}.o"
+
+    $CXX $CXXFLAGS $LIB_FUZZING_ENGINE "${fuzzer_name}.o" -o "$OUT/${fuzzer_name}" \
+        ./lib/libassimp.a \
+        ./contrib/zlib/libzlibstatic.a \
+        -lpthread -ldl
+}
+
+# 1. Generic Fuzzer
+build_fuzzer "assimp_fuzzer" "../fuzz/assimp_fuzzer.cc"
+# Corpus for generic fuzzer (all models)
+(cd ../test/models && zip -q -r $OUT/assimp_fuzzer_seed_corpus.zip .)
+# Dictionary
+cp ../fuzz/assimp_fuzzer.dict $OUT/assimp_fuzzer.dict || true
+
+
+# 2. OBJ Fuzzer
+build_fuzzer "assimp_fuzzer_obj" "../fuzz/assimp_fuzzer_obj.cc"
+if [ -d "../test/models/OBJ" ]; then
+    (cd ../test/models/OBJ && zip -q -r $OUT/assimp_fuzzer_obj_seed_corpus.zip .)
+fi
+cp ../fuzz/assimp_fuzzer.dict $OUT/assimp_fuzzer_obj.dict || true
+
+
+# 3. GLTF Fuzzer (text format only, glTF and glTF2 versions)
+build_fuzzer "assimp_fuzzer_gltf" "../fuzz/assimp_fuzzer_gltf.cc"
+mkdir -p gltf_corpus
+[ -d "../test/models/glTF" ] && cp -r ../test/models/glTF/* gltf_corpus/
+[ -d "../test/models/glTF2" ] && cp -r ../test/models/glTF2/* gltf_corpus/
+if [ -d "gltf_corpus" ] && [ "$(ls -A gltf_corpus)" ]; then
+    (cd gltf_corpus && zip -q -r $OUT/assimp_fuzzer_gltf_seed_corpus.zip .)
+fi
+rm -rf gltf_corpus
+cp ../fuzz/assimp_fuzzer.dict $OUT/assimp_fuzzer_gltf.dict || true
+
+
+# 4. GLB Fuzzer (binary glTF format)
+build_fuzzer "assimp_fuzzer_glb" "../fuzz/assimp_fuzzer_glb.cc"
+mkdir -p glb_corpus
+# GLB files can be found in glTF and glTF2 directories
+[ -d "../test/models/glTF" ] && find ../test/models/glTF -name "*.glb" -exec cp {} glb_corpus/ \; 2>/dev/null || true
+[ -d "../test/models/glTF2" ] && find ../test/models/glTF2 -name "*.glb" -exec cp {} glb_corpus/ \; 2>/dev/null || true
+if [ -d "glb_corpus" ] && [ "$(ls -A glb_corpus)" ]; then
+    (cd glb_corpus && zip -q -r $OUT/assimp_fuzzer_glb_seed_corpus.zip .)
+fi
+rm -rf glb_corpus
+cp ../fuzz/assimp_fuzzer.dict $OUT/assimp_fuzzer_glb.dict || true
+
+
+# 5. FBX Fuzzer
+build_fuzzer "assimp_fuzzer_fbx" "../fuzz/assimp_fuzzer_fbx.cc"
+if [ -d "../test/models/FBX" ]; then
+    (cd ../test/models/FBX && zip -q -r $OUT/assimp_fuzzer_fbx_seed_corpus.zip .)
+fi
+cp ../fuzz/assimp_fuzzer.dict $OUT/assimp_fuzzer_fbx.dict || true
+
+
+# 6. Collada Fuzzer
+build_fuzzer "assimp_fuzzer_collada" "../fuzz/assimp_fuzzer_collada.cc"
+if [ -d "../test/models/Collada" ]; then
+    (cd ../test/models/Collada && zip -q -r $OUT/assimp_fuzzer_collada_seed_corpus.zip .)
+fi
+cp ../fuzz/assimp_fuzzer.dict $OUT/assimp_fuzzer_collada.dict || true
+
+
+# 7. STL Fuzzer
+build_fuzzer "assimp_fuzzer_stl" "../fuzz/assimp_fuzzer_stl.cc"
+if [ -d "../test/models/STL" ]; then
+    (cd ../test/models/STL && zip -q -r $OUT/assimp_fuzzer_stl_seed_corpus.zip .)
+fi
+cp ../fuzz/assimp_fuzzer.dict $OUT/assimp_fuzzer_stl.dict || true

Engine/lib/assimp/fuzz/ossfuzz/project.yaml

@@ -0,0 +1,14 @@
+homepage: "https://github.com/assimp/assimp"
+main_repo: "https://github.com/assimp/assimp"
+language: c++
+primary_contact: "kim.kulling@assimp.org"
+auto_ccs:
+  - "kim.kulling@googlemail.com"
+sanitizers:
+  - address
+  - undefined
+  - memory
+fuzzing_engines:
+  - libfuzzer
+  - afl
+  - honggfuzz