yxml: initial integration

projects/yxml/Dockerfile

@@ -0,0 +1,22 @@
+# Copyright 2024 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 build-essential autoconf automake libtool
+
+RUN git clone https://github.com/JulStrat/yxml yxml
+COPY *_fuzzer.c *.sh $SRC/
+WORKDIR $SRC/yxml

projects/yxml/build.sh

@@ -0,0 +1,28 @@
+#!/bin/bash -eu
+#
+# Copyright 2024 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.
+#
+################################################################################
+
+# Build yxml project
+$CC $CFLAGS -I$SRC/yxml -c yxml.c -o yxml.a
+
+# Build fuzzing harness
+$CC $CFLAGS -I$SRC/yxml -c $SRC/yxml_fuzzer.c -o yxml_fuzzer.o
+$CXX $CXXFLAGS $LIB_FUZZING_ENGINE yxml_fuzzer.o \
+     -o $OUT/yxml_fuzzer yxml.a
+
+# Create seed corpus
+zip -rj $OUT/yxml_fuzzer_seed_corpus.zip $SRC/yxml/test/*.xml

projects/yxml/project.yaml

@@ -0,0 +1,6 @@
+homepage: "https://github.com/JulStrat/yxml"
+main_repo: "https://github.com/JulStrat/yxml.git"
+language: c
+vendor_ccs:
+- "[email protected]"
+- "[email protected]"

projects/yxml/yxml_fuzzer.c

@@ -0,0 +1,37 @@
+/* Copyright 2024 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.
+*/
+
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "yxml.h"
+
+#define BUFFER_SIZE 4096
+
+int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
+  // Initialise YXML object
+  void *buf = malloc(BUFFER_SIZE);
+  yxml_t xml;
+  yxml_init(&xml, buf, BUFFER_SIZE);
+
+  // Parse fuzzing data with YXML
+  for (int i = 0; i < size; i++) {
+    yxml_parse(&xml, data[i]);
+  }
+
+  // Clean object
+  yxml_eof(&xml);
+  free(buf);
+  return 0;
+}