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#!/bin/sh -eu
# First step. In the top directory execute:
# export CC=clang-6.0
# export CFLAGS="-O1 -fno-omit-frame-pointer -gline-tables-only -DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION -fsanitize=address -fsanitize-address-use-after-scope -fsanitize-coverage=trace-pc-guard,trace-cmp"
# ./configure --enable-static --disable-doc
# make clean
# make -j$(nproc) LIB_FUZZING_ENGINE="-lFuzzer"
# cd fuzz
# make -j$(nproc) check
# Read the docs at https://github.com/google/oss-fuzz/blob/master/docs/corpora.md
# then install 'google-cloud-sdk' and execute 'gcloud init'.
# Now 'gsutil' should be ready to use.
if test -z "$1"; then
echo "Usage: $0 <fuzzer target>"
echo "Example: $0 libidn_tounicode_fuzzer"
exit 1
fi
fuzzer=$1
project=libidn
# sync/copy the OSS-Fuzz corpora into the .new directory
mkdir -p ${fuzzer}.new
cp -fp ${fuzzer}.in/* ${fuzzer}.new
gsutil cp $(gsutil ls gs://${project}-backup.clusterfuzz-external.appspot.com/corpus/libFuzzer/${fuzzer}|tail -n 1) ${fuzzer}.new
(cd ${fuzzer}.new && unzip -q -f -o *.zip && rm *.zip)
# create fuzzer target
BUILD_ONLY=1 ./run-clang.sh ${fuzzer}
# merge the corpora into the .in directory
./${fuzzer} -merge=1 ${fuzzer}.in ${fuzzer}.new
# now clear .new dir and put all corpora there
rm -f ${fuzzer}.new/*
mv ${fuzzer}.in ${fuzzer}.new
mkdir ${fuzzer}.in
# now merge again (optimizes number of corpora)
./${fuzzer} -merge=1 ${fuzzer}.in ${fuzzer}.new
echo
echo "If new files have been added, 'git add' and 'git commit' them."
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