bsd/kern/sysv_msg.c

393 	int rval, eval;
400 		eval =  ENOMEM;
417 		eval = EINVAL;
427 		eval = EINVAL;
434 		eval = EINVAL;
438 	eval = mac_sysvmsq_check_msqctl(kauth_cred_get(), msqptr, cmd);
439 	if (eval)
443 	eval = 0;
451 		if ((eval = ipcperm(cred, &msqptr->u.msg_perm, IPC_M)))
465 			eval = mac_sysvmsq_check_msgrmid(kauth_cred_get(), msghdr);
466 			if (eval)
499 		if ((eval = ipcperm(cred, &msqptr->u.msg_perm, IPC_M)))
506 			eval = copyin(uap->buf, &tmpds, sizeof(tmpds));
512 			eval = copyin(uap->buf, &tmpds, sizeof(tmpds));
516 		if (eval)
517 			return(eval);
522 			eval = suser(cred, &p->p_acflag);
523 			if (eval)
540 			eval = EINVAL;
552 		if ((eval = ipcperm(cred, &msqptr->u.msg_perm, IPC_R))) {
563 			eval = copyout(&msqid_ds64, uap->buf, sizeof(msqid_ds64));
567 			eval = copyout(&msqid_ds32, uap->buf, sizeof(msqid_ds32));
576 		eval = EINVAL;
580 	if (eval == 0)
584 	return(eval);
590 	int msqid, eval;
599 		eval =  ENOMEM;
622 				eval = EEXIST;
625 			if ((eval = ipcperm(cred, &msqptr->u.msg_perm, msgflg & 0700 ))) {
633 			eval = mac_sysvmsq_check_msqget(cred, msqptr);
634 			if (eval)
661 			eval = ENOSPC;
692 		eval = ENOENT;
700 	eval = 0;
703 	return(eval);
721 	int segs_needed, eval;
731 		eval =  ENOMEM;
748 		eval = EINVAL;
757 		eval = EINVAL;
764 		eval = EINVAL;
768 	if ((eval = ipcperm(kauth_cred_get(), &msqptr->u.msg_perm, IPC_W))) {
776 	eval = mac_sysvmsq_check_msqsnd(kauth_cred_get(), msqptr);
777 	if (eval)
804 			eval = EINVAL;
857 				eval = EAGAIN;
878 			eval = msleep(blocking_resource, &sysv_msg_subsys_mutex, (PZERO - 4) | PCATCH,
881 			printf("good morning, eval=%d\n", eval);
885 			if (eval != 0) {
889 				eval = EINTR;
901 				eval = EIDRM;
977 		eval = copyin(user_msgp, &msgtype, sizeof(msgtype));
984 		eval = copyin(user_msgp, &msg_type32, sizeof(msg_type32));
990 	if (eval != 0) {
992 		printf("error %d copying the message type\n", eval);
1011 		eval = EINVAL;
1032 		eval = copyin(user_msgp, &msgpool[next * msginfo.msgssz], tlen);
1035 		if (eval != 0) {
1037 			printf("error %d copying in message segment\n", eval);
1067 		eval = EIDRM;
1070 		eval = EINVAL;
1087 	eval = mac_sysvmsq_check_enqueue(kauth_cred_get(), msghdr, msqptr);
1088 	if (eval) {
1114 	eval = 0;
1118 	return(eval);
1140 	int eval;
1148 		eval =  ENOMEM;
1165 		eval = EINVAL;
1174 		eval = EINVAL;
1181 		eval = EINVAL;
1185 	if ((eval = ipcperm(kauth_cred_get(), &msqptr->u.msg_perm, IPC_R))) {
1193 	eval = mac_sysvmsq_check_msqrcv(kauth_cred_get(), msqptr);
1194 	if (eval)
1208 					eval = E2BIG;
1212 				eval = mac_sysvmsq_check_msgrcv(kauth_cred_get(),
1214 				if (eval)
1254 						eval = E2BIG;
1258 					eval = mac_sysvmsq_check_msgrcv(
1260 					if (eval)
1308 			eval = ENOMSG;
1311 			eval = EAGAIN;
1323 		eval = msleep((caddr_t)msqptr, &sysv_msg_subsys_mutex, (PZERO - 4) | PCATCH, "msgwait",
1326 		printf("msgrcv:  good morning (eval=%d)\n", eval);
1329 		if (eval != 0) {
1333 			eval = EINTR;
1348 			eval = EIDRM;
1351 			eval = EINVAL;
1392 		eval = copyout(&msgtype, user_msgp, sizeof(msgtype));
1398 		eval = copyout(&msg_type32, user_msgp, sizeof(msg_type32));
1403 	if (eval != 0) {
1405 		printf("error (%d) copying out message type\n", eval);
1432 		eval = copyout(&msgpool[next * msginfo.msgssz],
1435 		if (eval != 0) {
1438 			    eval);
1455 	eval = 0;
1458 	return(eval);