fuse_impls_rename.c
上传用户:quxuerui
上传日期:2018-01-08
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文件大小:2k
- /**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements. See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership. The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
- #include "fuse_dfs.h"
- #include "fuse_impls.h"
- #include "fuse_trash.h"
- #include "fuse_connect.h"
- int dfs_rename(const char *from, const char *to)
- {
- TRACE1("rename", from)
- // retrieve dfs specific data
- dfs_context *dfs = (dfs_context*)fuse_get_context()->private_data;
- // check params and the context var
- assert(from);
- assert(to);
- assert(dfs);
- assert('/' == *from);
- assert('/' == *to);
- if (is_protected(from) || is_protected(to)) {
- syslog(LOG_ERR,"ERROR: hdfs trying to rename: %s %s", from, to);
- return -EACCES;
- }
- if (dfs->read_only) {
- syslog(LOG_ERR,"ERROR: hdfs is configured as read-only, cannot rename the directory %sn",from);
- return -EACCES;
- }
- hdfsFS userFS;
- // if not connected, try to connect and fail out if we can't.
- if ((userFS = doConnectAsUser(dfs->nn_hostname,dfs->nn_port))== NULL) {
- syslog(LOG_ERR, "ERROR: could not connect to dfs %s:%dn", __FILE__, __LINE__);
- return -EIO;
- }
- if (hdfsRename(userFS, from, to)) {
- syslog(LOG_ERR,"ERROR: hdfs trying to rename %s to %s",from, to);
- return -EIO;
- }
- return 0;
- }