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harfbuzz/test/fuzzing
Behdad Esfahbod 2e6919d526
[subset/cff2] Error handling 		1 year ago
..
fonts [subset/cff2] Error handling 1 year ago
graphs [repacker] Fix fuzzer memory leak. 1 year ago
sets Merge pull request #2733 from astiob/buffer-context-doc 4 years ago
Makefile.am test/fuzzing: Fix dist 2 years ago
README.md Update test/fuzzing/README 2 years ago
hb-draw-fuzzer.cc More s/hb_font_get_glyph_shape/hb_font_draw_glyph/ 2 years ago
hb-fuzzer.hh [fuzzer] In 50% of runs don't fail the allocator 2 years ago
hb-repacker-fuzzer.cc [repacker] use memcpy to avoid alignment issues. 2 years ago
hb-set-fuzzer.cc [fuzzer] In 50% of runs don't fail the allocator 2 years ago
hb-shape-fuzzer.cc [fuzzer] In 50% of runs don't fail the allocator 2 years ago
hb-subset-fuzzer.cc Check for failed subset input creation in the fuzzer. 2 years ago
main.cc [blob] Add failing versions of create API 3 years ago
meson.build [repacker] only build repacker fuzzer when experimental api is enabled. 2 years ago
run-draw-fuzzer-tests.py Merge pull request #2733 from astiob/buffer-context-doc 4 years ago
run-repacker-fuzzer-tests.py [repacker] add test for repacker fuzzer. 2 years ago
run-shape-fuzzer-tests.py Merge pull request #2733 from astiob/buffer-context-doc 4 years ago
run-subset-fuzzer-tests.py Merge pull request #2733 from astiob/buffer-context-doc 4 years ago

README.md

To build the fuzzers with libFuzzer to perform actual fuzzing, build with:

CXX=clang++ CXXFLAGS="-fsanitize=address,fuzzer-no-link" meson fuzzbuild --default-library=static -Dfuzzer_ldflags="-fsanitize=address,fuzzer"

ninja -Cfuzzbuild

Then, run the fuzzer like this:

fuzzbuild/test/fuzzing/hb-{shape,draw,subset,set}-fuzzer [-max_len=2048] [CORPUS_DIR]

Where max_len specifies the maximal length of font files to handle. The smaller the faster.

For more details consult the following locations: