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History

Calvin Rose cc70388846 Merge pull request #338 from andrewchambers/unmarshalfuzz2 Make unmarshal fuzzer exercise more code paths.		2020-04-05 20:36:30 -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	Make unmarshal fuzzer exercise more code paths.	2020-04-06 09:59:00 +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/