For target binaries that accept input directly from stdin, the usual syntax is: $ ./afl-fuzz -i testcase_dir -o findings_dir /path/to/program [...params...]
```
So in your case you should run:
afl-fuzz -i in -o ou ./a.out
Cheers,
Eirini
my test use input from stdin,my order is"afl-fuzz -i in -o ou ./a.out",the contents in has no file because I want use stdin,but it's wrong,please tell me how to use it
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