improve fuzzing support
improve fuzzing support

weinrank/usrsctp,sctplab/usrsctp,faithfracture/usrsctp,sctplab/usrsctp,CoolmanCZ/usrsctp,faithfracture/usrsctp,faithfracture/usrsctp,sctplab/usrsctp,CoolmanCZ/usrsctp,weinrank/usrsctp,CoolmanCZ/usrsctp,weinrank/usrsctp,CoolmanCZ/usrsctp