1#!/bin/bash -eu 2 3# Copyright 2017-2018 Glenn Randers-Pehrson 4# Copyright 2016 Google Inc. 5# 6# Licensed under the Apache License, Version 2.0 (the "License"); 7# you may not use this file except in compliance with the License. 8# You may obtain a copy of the License at 9# 10# http://www.apache.org/licenses/LICENSE-2.0 11# 12# Unless required by applicable law or agreed to in writing, software 13# distributed under the License is distributed on an "AS IS" BASIS, 14# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15# See the License for the specific language governing permissions and 16# limitations under the License. 17# 18# Revisions by Glenn Randers-Pehrson, 2017: 19# 1. Build only the library, not the tools (changed "make -j$(nproc) all" to 20# "make -j$(nproc) libpng16.la"). 21# 2. Disabled WARNING and WRITE options in pnglibconf.dfa. 22# 3. Build zlib alongside libpng 23################################################################################ 24 25# Disable logging via library build configuration control. 26cat scripts/pnglibconf.dfa | \ 27 sed -e "s/option STDIO/option STDIO disabled/" \ 28 -e "s/option WARNING /option WARNING disabled/" \ 29 -e "s/option WRITE enables WRITE_INT_FUNCTIONS/option WRITE disabled/" \ 30> scripts/pnglibconf.dfa.temp 31mv scripts/pnglibconf.dfa.temp scripts/pnglibconf.dfa 32 33# build the libpng library. 34autoreconf -f -i 35./configure --with-libpng-prefix=OSS_FUZZ_ 36make -j$(nproc) clean 37make -j$(nproc) libpng16.la 38 39# build libpng_read_fuzzer. 40$CXX $CXXFLAGS -std=c++11 -I. \ 41 $SRC/libpng/contrib/oss-fuzz/libpng_read_fuzzer.cc \ 42 -o $OUT/libpng_read_fuzzer \ 43 -lFuzzingEngine .libs/libpng16.a -lz 44 45# add seed corpus. 46find $SRC/libpng -name "*.png" | grep -v crashers | \ 47 xargs zip $OUT/libpng_read_fuzzer_seed_corpus.zip 48 49cp $SRC/libpng/contrib/oss-fuzz/*.dict \ 50 $SRC/libpng/contrib/oss-fuzz/*.options $OUT/ 51