o_gid_t
o_gid_t sgid;
srf->gid > (o_gid_t)USHRT_MAX) {
ostrfd.gid = (o_gid_t)srf->gid;
o_gid_t ac_gid; /* Accounting group ID */
o_gid_t ic_sgid; /* 6: owner's group id */
o_gid_t gid;