bsd/kern/kern_prot.c

732 	if (uid != my_pcred->cr_ruid &&		/* allow setuid(getuid()) */
754 		(void)chgproccnt(my_pcred->cr_ruid, -1);
848 	if (euid != my_pcred->cr_ruid && euid != my_pcred->cr_svuid &&
957 	      ruid != my_pcred->cr_ruid &&	/* allow ruid = ruid */
962 	      euid != my_pcred->cr_ruid &&	/* allow euid = ruid */
980 		new_ruid = my_pcred->cr_ruid;
994 		if (ruid != KAUTH_UID_NONE && my_pcred->cr_ruid != ruid) {
998 			(void)chgproccnt(my_pcred->cr_ruid, -1);
1879 			my_pcred->cr_ruid == 0 || my_pcred->cr_svuid == 0);
2035 	audit_token.val[3] = my_pcred->cr_ruid;