nuttx/libs/libc/termios/lib_tcgetattr.c

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/****************************************************************************
* libs/libc/termios/lib_tcgetattr.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 <sys/ioctl.h>
#include <termios.h>
#include <errno.h>
#include <nuttx/serial/tioctl.h>
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: tcgetattr
*
* Description:
* The tcgetattr() function gets the parameters associated with the
* terminal referred to by 'fd' and stores them in the termios structure
* referenced by 'termiosp'.
*
* Input Parameters:
* fd - The 'fd' argument is an open file descriptor associated with a
* terminal.
* termiosp - The termiosp argument is a pointer to a termios structure.
*
* Returned Value:
* Upon successful completion, 0 is returned. Otherwise, -1 is returned and
* errno is set to indicate the error.
* The following errors may be reported:
*
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* - EBADF: The 'fd' argument is not a valid file descriptor.
* - ENOTTY: The file associated with 'fd' is not a terminal.
*
****************************************************************************/
int tcgetattr(int fd, FAR struct termios *termiosp)
{
return ioctl(fd, TCGETS, (unsigned long)(uintptr_t)termiosp);
}