sctp_ipv4addr_param
struct sctp_ipv4addr_param v4;
struct sctp_ipv4addr_param *v4;
if (ntohs(param->v4.param_hdr.length) < sizeof(struct sctp_ipv4addr_param))
int length = sizeof(struct sctp_ipv4addr_param);
if (length != sizeof(struct sctp_ipv4addr_param))