Fix compilation for INET6 stacks
Fix compilation for INET6 stacks

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