# checkout the git
git clone '[email protected]:nautilus-fuzz/nautilus.git'
cd nautilus
/path/to/AFLplusplus/afl-clang-fast test.c -o test #afl-clang-fast as provided by AFL

# all arguments can also be set using the config.ron file
cargo run --release -- -g grammars/grammar_py_example.py -o /tmp/workdir -- ./test @@

# or if you want to use QEMU mode:
cargo run /path/to/AFLplusplus/afl-qemu-trace -- ./test_bin @@

#ctx.rule(NONTERM: string, RHS: string|bytes) adds a rule NONTERM->RHS. We can use {NONTERM} in the RHS to request a recursion. 
ctx.rule("START","<document>{XML_CONTENT}</document>")
ctx.rule("XML_CONTENT","{XML}{XML_CONTENT}")
ctx.rule("XML_CONTENT","")

#ctx.script(NONTERM:string, RHS: [string]], func) adds a rule NONTERM->func(*RHS). 
# In contrast to normal `rule`, RHS is an array of nonterminals. 
# It's up to the function to combine the values returned for the NONTERMINALS with any fixed content used.
ctx.script("XML",["TAG","ATTR","XML_CONTENT"], lambda tag,attr,body: b"<%s %s>%s</%s>"%(tag,attr,body,tag) )
ctx.rule("ATTR","foo=bar")
ctx.rule("TAG","some_tag")
ctx.rule("TAG","other_tag")

#sometimes we don't want to explore the set of possible inputs in more detail. For example, if we fuzz a script
#interpreter, we don't want to spend time on fuzzing all different variable names. In such cases we can use Regex
#terminals. Regex terminals are only mutated during generation, but not during normal mutation stages, saving a lot of time. 
#The fuzzer still explores different values for the regex, but it won't be able to learn interesting values incrementally. 
#Use this when incremantal exploration would most likely waste time.

ctx.regex("TAG","[a-z]+")

$ cargo run --bin generator -- -g grammars/grammar_py_exmaple.py -t 100 
<document><some_tag foo=bar><other_tag foo=bar><other_tag foo=bar><some_tag foo=bar></some_tag></other_tag><some_tag foo=bar><other_tag foo=bar></other_tag></some_tag><other_tag foo=bar></other_tag><some_tag foo=bar></some_tag></other_tag><other_tag foo=bar></other_tag><some_tag foo=bar></some_tag></some_tag></document>

#Terminal/Screen 1
./afl-fuzz -Safl -i /tmp/seeds -o /tmp/workdir/ ./test @@

#Terminal/Screen 2
cargo run --release -- -o /tmp/workdir -- ./test @@