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/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
* @brief open_dev_console - open /dev/console
*/
/*
* COPYRIGHT (c) 1989-2009.
* On-Line Applications Research Corporation (OAR).
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems.h>
#include <rtems/libio.h>
#include <rtems/console.h>
#include <fcntl.h>
#include <stdlib.h>
#include <unistd.h>
/*
* This is a replaceable stub which opens the console, if present.
*/
void rtems_libio_post_driver(void)
{
/*
* Attempt to open /dev/console.
*/
if ( open( CONSOLE_DEVICE_NAME, O_RDONLY, 0 ) != STDIN_FILENO ) {
/*
* There may not be a console driver so this is OK.
*/
return;
}
/*
* But if we find /dev/console once, we better find it twice more
* or something is REALLY wrong.
*/
if ( open( CONSOLE_DEVICE_NAME, O_WRONLY, 0 ) != STDOUT_FILENO ) {
_Internal_error( INTERNAL_ERROR_LIBIO_STDOUT_FD_OPEN_FAILED );
}
if ( open( CONSOLE_DEVICE_NAME, O_WRONLY, 0 ) != STDERR_FILENO ) {
_Internal_error( INTERNAL_ERROR_LIBIO_STDERR_FD_OPEN_FAILED );
}
atexit(rtems_libio_exit);
}
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