SOCKCREDSIZE
crmsgsize = CMSG_SPACE(SOCKCREDSIZE(NGROUPS));
xprt->xp_p2 = mem_alloc(SOCKCREDSIZE(sc->sc_ngroups));
memcpy(xprt->xp_p2, sc, SOCKCREDSIZE(sc->sc_ngroups));
if (cmp->cmsg_len < CMSG_LEN(SOCKCREDSIZE(1)))
#define CRCM_DATASIZE (SOCKCREDSIZE(NGROUPS))
m = sbcreatecontrol1(&p, SOCKCREDSIZE(kauth_cred_ngroups(l->l_cred)),
char cmsg_buf[sizeof(struct cmsghdr) + SOCKCREDSIZE(NGROUPS_MAX)];
srv->ctllen = CMSG_SPACE(SOCKCREDSIZE(MAX_GROUPS));
&& cmsg->cmsg_len >= CMSG_LEN(SOCKCREDSIZE(0)))