Vadim Zeitlin d5a6568b21 Add a fuzzer for ZIP reading code ...

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).

2017-10-25 00:38:52 +02:00

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