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janet/tools/afl
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Calvin Rose 5bbd507858 Address #336 case 3 
Fix error condition for bad abstract types - don't return NULL, panic.
2020-04-05 17:38:14 -05:00
..
parser_testcases Add afl fuzzing helpers. 2019-11-29 16:43:14 +13:00
aggregate_cases.sh Add afl fuzzing helpers. 2019-11-29 16:43:14 +13:00
fuzz.sh Add afl fuzzing helpers. 2019-11-29 16:43:14 +13:00
generate_unmarshal_testcases.janet Address #336 case 3 2020-04-05 17:38:14 -05:00
parser_runner.janet Add afl fuzzing helpers. 2019-11-29 16:43:14 +13:00
prepare_to_fuzz.sh Add afl fuzzing helpers. 2019-11-29 16:43:14 +13:00
README.md Setup some simple fuzz helpers for unmarshal. 2020-04-05 23:05:18 +12:00
unmarshal_runner.janet Setup some simple fuzz helpers for unmarshal. 2020-04-05 23:05:18 +12:00

README.md

AFL Fuzzing scripts

To use these, you need to install afl (of course), and xterm. A tiling window manager helps manage many concurrent fuzzer instances.

Note, afl sometimes requires system configuration, if you find AFL quitting prematurely, try manually launching it and addressing any error messages.

Fuzz the parser

$ sh ./tools/afl/prepare_to_fuzz.sh
$ export NFUZZ=1
$ sh ./tools/afl/fuzz.sh parser
Ctrl+C when done to close all fuzzer terminals.
$ sh ./tools/afl/aggregate_cases.sh parser
$ ls ./fuzz_out/parser_aggregated/

Fuzz the unmarshaller

$ janet ./tools/afl/generate_unmarshal_testcases.janet
$ sh ./tools/afl/prepare_to_fuzz.sh
$ export NFUZZ=1
$ sh ./tools/afl/fuzz.sh unmarshal
Ctrl+C when done to close all fuzzer terminals.
$ sh ./tools/afl/aggregate_cases.sh unmarshal
$ ls ./fuzz_out/unmarshal_aggregated/