incubator-nuttx/libs/libc/unistd/lib_geteuid.c

63 lines
2.0 KiB
C

/****************************************************************************
* libs/libc/unistd/lib_geteuid.c
*
* 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <unistd.h>
#include <errno.h>
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: geteuid
*
* Description:
* The geteuid() function will return the effective user ID of the calling
* task group.
*
* Input Parameters:
* None
*
* Returned Value:
* The effective user ID of the calling task group.
*
****************************************************************************/
uid_t geteuid(void)
{
#ifdef CONFIG_SCHED_USER_IDENTITY
/* If we have real UID/GID support, then treat the real user ID as the
* effective user ID.
*/
return getuid();
#else
/* Return the user identity 'root' with a uid value of 0. */
return 0;
#endif
}