incubator-nuttx/libs/libc/misc/lib_umask.c

86 lines
2.5 KiB
C

/****************************************************************************
* libs/libc/misc/lib_umask.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 <sys/stat.h>
#include <nuttx/tls.h>
/****************************************************************************
* Private Data
****************************************************************************/
#ifdef CONFIG_BUILD_KERNEL
static mode_t g_umask;
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: umask
*
* Description:
* Set and get the file mode creation mask
*
* Input Parameters:
* mask - The process' file mode creation mask
*
* Returned Value:
* The previous value of the mask.
*
****************************************************************************/
mode_t umask(mode_t mask)
{
mode_t prev;
#ifndef CONFIG_BUILD_KERNEL
FAR struct task_info_s *info;
info = task_get_info();
prev = info->ta_umask;
info->ta_umask = mask;
#else
prev = g_umask;
g_umask = mask;
#endif
return prev;
}
/****************************************************************************
* Name: getumask
****************************************************************************/
mode_t getumask(void)
{
#ifndef CONFIG_BUILD_KERNEL
FAR struct task_info_s *info;
info = task_get_info();
return info->ta_umask;
#else
return g_umask;
#endif
}