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52 lines
1.9 KiB
52 lines
1.9 KiB
4 years ago
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#!/bin/bash -eu
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# Copyright 2017-2018 Glenn Randers-Pehrson
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# Copyright 2016 Google Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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# Last changed in libpng 1.6.35 [July 15, 2018]
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#
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# Revisions by Glenn Randers-Pehrson, 2017:
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# 1. Build only the library, not the tools (changed "make -j$(nproc) all" to
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# "make -j$(nproc) libpng16.la").
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# 2. Disabled WARNING and WRITE options in pnglibconf.dfa.
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# 3. Build zlib alongside libpng
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################################################################################
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# Disable logging via library build configuration control.
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cat scripts/pnglibconf.dfa | \
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sed -e "s/option STDIO/option STDIO disabled/" \
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-e "s/option WARNING /option WARNING disabled/" \
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-e "s/option WRITE enables WRITE_INT_FUNCTIONS/option WRITE disabled/" \
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> scripts/pnglibconf.dfa.temp
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mv scripts/pnglibconf.dfa.temp scripts/pnglibconf.dfa
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# build the libpng library.
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autoreconf -f -i
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./configure --with-libpng-prefix=OSS_FUZZ_
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make -j$(nproc) clean
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make -j$(nproc) libpng16.la
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# build libpng_read_fuzzer.
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$CXX $CXXFLAGS -std=c++11 -I. \
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$SRC/libpng/contrib/oss-fuzz/libpng_read_fuzzer.cc \
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-o $OUT/libpng_read_fuzzer \
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-lFuzzingEngine .libs/libpng16.a -lz
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# add seed corpus.
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find $SRC/libpng -name "*.png" | grep -v crashers | \
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xargs zip $OUT/libpng_read_fuzzer_seed_corpus.zip
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cp $SRC/libpng/contrib/oss-fuzz/*.dict \
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$SRC/libpng/contrib/oss-fuzz/*.options $OUT/
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