kc3-lang/harfbuzz/test/fuzzing

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  Commit

• Author : Behdad Esfahbod
  Date : 2025-03-07 17:23:17
  Hash : 2a878b1b
  Message : [font-funcs] Add two new API + hb_font_set_funcs_using() + hb_font_list_funcs() Part of https://github.com/harfbuzz/harfbuzz/issues/5117

• Files
• README.md
• fonts
• graphs
• hb-draw-fuzzer.cc
• hb-fuzzer.hh
• hb-repacker-fuzzer.cc
• hb-set-fuzzer.cc
• hb-shape-fuzzer.cc
• hb-subset-fuzzer.cc
• main.cc
• meson.build
• run-fuzzer-tests.py
• sets

• 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:

  • http://llvm.org/docs/LibFuzzer.html