Symbol: realgroupmember
sys/kern/kern_prot.c
1903
if (realgroupmember(u1->cr_rgid, u2))
sys/kern/kern_prot.c
1907
if (realgroupmember(u1->cr_groups[i], u2))
sys/security/mac_do/mac_do.c
1918
if (rule->from_type == IT_GID && realgroupmember(rule->from_id, cred))
sys/sys/ucred.h
264
bool realgroupmember(gid_t gid, const struct ucred *cred);