This script used to live in oss-fuzz repository itself (under
projects/wxwidgets), but it seems better to have it in the main
repository, as this will make modifying it, e.g. to add new fuzzers,
simpler.
This is useful when not using libFuzzer (e.g. because the compiler is
gcc or MSVC and not clang) as it allows to debug the problems found by
libFuzzer with the reproducers generated by it.
The new source file needs to be compiled with a recent clang using
libfuzzer using a command line similar to the following:
$ clang++ -g -fsanitize=address -fsanitize-coverage=trace-pc-guard tests/fuzz/readzip.cpp `wx-config --cxxflags --libs base` -lFuzzer
and then executed passing it the corpus directory as parameter:
$ ./a.out tests/fuzz/corpus/zip
This will be useful for finding more bugs like #17947 (and, indeed,
running it locally already found another assert failure, which will be
fixed soon).
