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# Fuzzing libjpeg(-turbo) #
**Requirements**
* honggfuzz
* clang-5.0, or newer
* libjpeg9, or libjpeg-turbo
**Preparation**
1. Compile honggfuzz
2. Unpack/Clone libjpeg(-turbo)
3. Configure+Compile libjpeg(-turbo)
```shell
CC=<your_hfuzz_dir>/hfuzz_cc/hfuzz-clang CXX=<your_hfuzz_dir>/hfuzz_cc/hfuzz-clang++ CFLAGS="-fsanitize=address" ./configure
make -j$(nproc)
```
4. Compile fuzzing targets
```shell
$ <your_hfuzz_dir>/hfuzz_cc/hfuzz-clang -I ./jpeg-9c/ <your_hfuzz_dir>/examples/libjpeg/persistent-jpeg.c -o persistent.jpeg9.address jpeg-9c/.libs/libjpeg.a -fsanitize=address
```
or
```shell
$ <your_hfuzz_dir>/hfuzz_cc/hfuzz-clang -I ./libjpeg-turbo-2.0.3/ -I ./libjpeg-turbo-2.0.3/out/ <your_hfuzz_dir>/examples/libjpeg/persistent-jpeg.c -o persistent.jpeg-turbo.address libjpeg-turbo-2.0.3/out/libjpeg.a -fsanitize=address
```
**Fuzzing**
```shell
$ honggfuzz -i initial_corpus --rlimit_rss 2048 -- ./persistent.jpeg9.address
```
or
```
$ honggfuzz -i initial_corpus --rlimit_rss 2048 -- ./persistent.jpeg-turbo.address
```
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