hadoop/hadoop-native-core/common/user.h

/**
 * 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.
 */

#ifndef HADOOP_CORE_COMMON_USER_H
#define HADOOP_CORE_COMMON_USER_H

/**
 * Get the current effective user name.
 *
 * @param out           (out param) The name of the current user.
 *                      A malloc'ed string which must be freed.
 *
 * @return              0 on success; error code otherwise.
 */
int geteuid_string(char **out);

#endif

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