forked from Imagelibrary/rtems
53 lines
1.2 KiB
C
53 lines
1.2 KiB
C
/*
|
|
* open_dev_console - open /dev/console
|
|
*
|
|
* COPYRIGHT (c) 1989-2009.
|
|
* On-Line Applications Research Corporation (OAR).
|
|
*
|
|
* The license and distribution terms for this file may be
|
|
* found in the file LICENSE in this distribution or at
|
|
* http://www.rtems.org/license/LICENSE.
|
|
*/
|
|
|
|
#if 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);
|
|
}
|
|
|