calog/vendor/libarchive/contrib/oss-fuzz/oss-fuzz-build.sh

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#!/bin/bash -eu
# Build the project
./build/autogen.sh
./configure
make -j$(nproc) all
FUZZ_DIR=$SRC/libarchive/contrib/oss-fuzz
TEST_DIR=$SRC/libarchive/libarchive/test
# Common libraries for linking
LIBS=".libs/libarchive.a -Wl,-Bstatic -lbz2 -llzo2 -lxml2 -llzma -lz -lcrypto -llz4 -licuuc -licudata -Wl,-Bdynamic"
# Function to build a fuzzer
build_fuzzer() {
local name=$1
local source=$2
echo "Building fuzzer: $name"
$CXX $CXXFLAGS -Ilibarchive \
"$source" \
-o "$OUT/$name" $LIB_FUZZING_ENGINE $LIBS
}
# Build all format-specific fuzzers
FUZZERS=(
"libarchive_fuzzer"
"libarchive_tar_fuzzer"
"libarchive_zip_fuzzer"
"libarchive_7zip_fuzzer"
"libarchive_rar_fuzzer"
"libarchive_rar5_fuzzer"
"libarchive_xar_fuzzer"
"libarchive_cab_fuzzer"
"libarchive_lha_fuzzer"
"libarchive_iso9660_fuzzer"
"libarchive_cpio_fuzzer"
"libarchive_warc_fuzzer"
"libarchive_mtree_fuzzer"
"libarchive_ar_fuzzer"
"libarchive_filter_fuzzer"
"libarchive_entry_fuzzer"
"libarchive_write_fuzzer"
"libarchive_linkify_fuzzer"
"libarchive_match_fuzzer"
"libarchive_encryption_fuzzer"
"libarchive_read_disk_fuzzer"
"libarchive_write_disk_fuzzer"
"libarchive_seek_fuzzer"
"libarchive_string_fuzzer"
"libarchive_roundtrip_fuzzer"
)
for fuzzer in "${FUZZERS[@]}"; do
if [ -f "$FUZZ_DIR/${fuzzer}.cc" ]; then
build_fuzzer "$fuzzer" "$FUZZ_DIR/${fuzzer}.cc"
fi
done
# Copy dictionaries and options
cp "$FUZZ_DIR"/*.dict "$OUT/" 2>/dev/null || true
cp "$FUZZ_DIR"/*.options "$OUT/" 2>/dev/null || true
# Build seed corpora
echo "Building seed corpora..."
# Main fuzzer corpus (existing)
cp "$FUZZ_DIR/corpus.zip" "$OUT/libarchive_fuzzer_seed_corpus.zip"
# Function to create corpus from test files
create_corpus() {
local name=$1
local pattern=$2
local dir="/tmp/${name}_corpus"
mkdir -p "$dir"
for f in $TEST_DIR/$pattern; do
if [ -f "$f" ]; then
base=$(basename "$f" .uu)
uudecode -o "$dir/$base" "$f" 2>/dev/null || true
fi
done
if [ "$(ls -A $dir 2>/dev/null)" ]; then
zip -j "$OUT/${name}_seed_corpus.zip" "$dir"/* 2>/dev/null || true
echo "Created corpus for $name with $(ls $dir | wc -l) files"
fi
rm -rf "$dir"
}
# Create format-specific corpora
create_corpus "libarchive_tar_fuzzer" "test_compat_*tar*.uu"
create_corpus "libarchive_zip_fuzzer" "test_*zip*.uu"
create_corpus "libarchive_7zip_fuzzer" "test_read_format_7zip*.uu"
create_corpus "libarchive_rar_fuzzer" "test_read_format_rar_*.uu"
create_corpus "libarchive_rar5_fuzzer" "test_read_format_rar5*.uu"
create_corpus "libarchive_xar_fuzzer" "test_read_format_xar*.uu"
create_corpus "libarchive_cab_fuzzer" "test_read_format_cab*.uu"
create_corpus "libarchive_lha_fuzzer" "test_read_format_lha*.uu"
create_corpus "libarchive_iso9660_fuzzer" "test_read_format_iso*.uu"
create_corpus "libarchive_cpio_fuzzer" "test_compat_cpio*.uu"
create_corpus "libarchive_warc_fuzzer" "test_read_format_warc*.uu"
create_corpus "libarchive_mtree_fuzzer" "test_read_format_mtree*.uu"
create_corpus "libarchive_ar_fuzzer" "test_read_format_ar*.uu"
# Filter corpus - use compressed test files
mkdir -p /tmp/filter_corpus
for f in $TEST_DIR/*.gz.uu $TEST_DIR/*.bz2.uu $TEST_DIR/*.xz.uu $TEST_DIR/*.lz4.uu $TEST_DIR/*.zst.uu $TEST_DIR/*.Z.uu; do
if [ -f "$f" ]; then
base=$(basename "$f" .uu)
uudecode -o "/tmp/filter_corpus/$base" "$f" 2>/dev/null || true
fi
done
if [ "$(ls -A /tmp/filter_corpus 2>/dev/null)" ]; then
zip -j "$OUT/libarchive_filter_fuzzer_seed_corpus.zip" /tmp/filter_corpus/* 2>/dev/null || true
fi
rm -rf /tmp/filter_corpus
# Encryption corpus - encrypted archives
mkdir -p /tmp/encryption_corpus
for f in $TEST_DIR/*encrypt*.uu $TEST_DIR/*password*.uu; do
if [ -f "$f" ]; then
base=$(basename "$f" .uu)
uudecode -o "/tmp/encryption_corpus/$base" "$f" 2>/dev/null || true
fi
done
if [ "$(ls -A /tmp/encryption_corpus 2>/dev/null)" ]; then
zip -j "$OUT/libarchive_encryption_fuzzer_seed_corpus.zip" /tmp/encryption_corpus/* 2>/dev/null || true
fi
rm -rf /tmp/encryption_corpus
echo "Build complete! Built ${#FUZZERS[@]} fuzzers."