1 files changed, 61 insertions, 0 deletions
diff --git a/tools/oss-fuzz.sh b/tools/oss-fuzz.sh
new file mode 100755
index 0000000..491246b
--- /dev/null
+++ b/tools/oss-fuzz.sh
@@ -0,0 +1,61 @@
+#!/usr/bin/env bash
+# SPDX-License-Identifier: LGPL-2.1-or-later
+
+set -ex
+
+export LC_CTYPE=C.UTF-8
+
+export CC=${CC:-clang}
+export CXX=${CXX:-clang++}
+clang_version="$($CC --version | sed -nr 's/.*version ([^ ]+?) .*/\1/p' | sed -r 's/-$//')"
+
+SANITIZER=${SANITIZER:-address -fsanitize-address-use-after-scope}
+flags="-O1 -fno-omit-frame-pointer -gline-tables-only -DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION -fsanitize=$SANITIZER"
+
+clang_lib="/usr/lib64/clang/${clang_version}/lib/linux"
+[ -d "$clang_lib" ] || clang_lib="/usr/lib/clang/${clang_version}/lib/linux"
+
+export CFLAGS=${CFLAGS:-$flags}
+export CXXFLAGS=${CXXFLAGS:-$flags}
+export LDFLAGS=${LDFLAGS:--L${clang_lib}}
+
+export WORK=${WORK:-$(pwd)}
+export OUT=${OUT:-$(pwd)/out}
+mkdir -p $OUT
+
+build=$WORK/build
+rm -rf $build
+mkdir -p $build
+
+if [ -z "$FUZZING_ENGINE" ]; then
+    fuzzflag="llvm-fuzz=true"
+else
+    fuzzflag="oss-fuzz=true"
+    if [[ "$SANITIZER" == undefined ]]; then
+        UBSAN_FLAGS="-fsanitize=pointer-overflow -fno-sanitize-recover=pointer-overflow"
+        CFLAGS="$CFLAGS $UBSAN_FLAGS"
+        CXXFLAGS="$CXXFLAGS $UBSAN_FLAGS"
+    fi
+fi
+
+meson $build -D$fuzzflag -Db_lundef=false
+ninja -v -C $build fuzzers
+
+# The seed corpus is a separate flat archive for each fuzzer,
+# with a fixed name ${fuzzer}_seed_corpus.zip.
+for d in "$(dirname "$0")/../test/fuzz/fuzz-"*; do
+    zip -jqr $OUT/$(basename "$d")_seed_corpus.zip "$d"
+done
+
+# get fuzz-dns-packet corpus
+df=$build/dns-fuzzing
+git clone --depth 1 https://github.com/CZ-NIC/dns-fuzzing $df
+zip -jqr $OUT/fuzz-dns-packet_seed_corpus.zip $df/packet
+
+install -Dt $OUT/src/shared/ $build/src/shared/libsystemd-shared-*.so
+
+wget -O $OUT/fuzz-json.dict https://raw.githubusercontent.com/rc0r/afl-fuzz/master/dictionaries/json.dict
+
+find $build -maxdepth 1 -type f -executable -name "fuzz-*" -exec mv {} $OUT \;
+find src -type f -name "fuzz-*.dict" -exec cp {} $OUT \;
+cp src/fuzz/*.options $OUT