Instead of invoking the fuzz test programs once for every corpora
file, we invoke them once for each directory of corpora files. This
dramatically reduces the number of program invikations, as well as the
time 99-test_fuzz.t takes to complete.
fuzz/test-corpus.c was enhanced to handle directories as well as
regular files.
Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5776)
Instead of setting a "magic" global variable to force RAND to keep
consistent state and always generate the same bytestream, have
the fuzzing code install its own RAND_METHOD that does this. For
BN_RAND_DEBUG, we just don't do it; that debugging was about mucking
with BN's internal representation, not requiring predictable rand
bytes.
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/4025)
