Only accept IPPROTO_SCTP as level in setsockopt and getsockopt.
Only accept IPPROTO_SCTP as level in setsockopt and getsockopt.

sctplab/usrsctp,sctplab/usrsctp,sukinull/usrsctp,faithfracture/usrsctp,ossy-szeged/usrsctp,saghul/usrsctp,sctplab/usrsctp,faithfracture/usrsctp,liamstask/usrsctp,sukinull/usrsctp,weinrank/usrsctp,weinrank/usrsctp,JlnWntr/usrsctp,bebo/usrsctp,CoolmanCZ/usrsctp,weinrank/usrsctp,faithfracture/usrsctp,saghul/usrsctp,CoolmanCZ/usrsctp,JlnWntr/usrsctp,liamstask/usrsctp,JlnWntr/usrsctp,CoolmanCZ/usrsctp,bebo/usrsctp,ossy-szeged/usrsctp,CoolmanCZ/usrsctp