ip_allocbuf
extern boolean_t ip_allocbuf(void **, uint_t *, boolean_t, const void *,
if (!ip_allocbuf((void **)&sctp->sctp_hopopts,
if (!ip_allocbuf((void **)&sctp->sctp_rthdrdstopts,
if (!ip_allocbuf((void **)&sctp->sctp_rthdr,
if (!ip_allocbuf((void **)&sctp->sctp_dstopts,
if (!ip_allocbuf((void **)&tcp->tcp_hopopts,
if (!ip_allocbuf((void **)&tcp->tcp_rthdrdstopts,
if (!ip_allocbuf((void **)&tcp->tcp_rthdr,
if (!ip_allocbuf((void **)&tcp->tcp_dstopts,