/* * Rename files. Source and destination must either both be directories, * or both not be directories. If target is a directory, it must be empty. * If `from' and `to' refer to the same object, the value of the `retain' * argument is used to determine whether `from' will be * * (retain == 0) deleted unless `from' and `to' refer to the same * object in the file system's name space (BSD). * (retain == 1) always retained (POSIX). * * XXX Synchronize with nfsrv_rename in nfs_serv.c. */