bsd/kern/sysv_msg.c

394 	struct user_msqid_ds msqbuf;
508 			msqid_ds_user64tokernel(&tmpds, &msqbuf);
514 			msqid_ds_user32tokernel(&tmpds, &msqbuf);
521 		if (msqbuf.msg_qbytes > msqptr->u.msg_qbytes) {
529 		if (msqbuf.msg_qbytes > (user_msglen_t)msginfo.msgmnb) {
534 			msqbuf.msg_qbytes = msginfo.msgmnb;	/* silently restrict qbytes to system limit */
536 		if (msqbuf.msg_qbytes == 0) {
543 		msqptr->u.msg_perm.uid = msqbuf.msg_perm.uid;	/* change the owner */
544 		msqptr->u.msg_perm.gid = msqbuf.msg_perm.gid;	/* change the owner */
546 		    (msqbuf.msg_perm.mode & 0777);
547 		msqptr->u.msg_qbytes = msqbuf.msg_qbytes;