sctp_sendmsg
sctp_sendmsg(int, const void *, size_t, const struct sockaddr *,
EXPECT_NOTCAPABLE(sctp_sendmsg(cap_sock_ro, &byte, 1,
EXPECT_NOTCAPABLE(sctp_sendmsg(cap_sock_rw, &byte, 1,
EXPECT_OK(sctp_sendmsg(cap_sock_all, &byte, 1,