590307e957
Gregory Nutt is has submitted the SGA Mark Schulte has submitted the ICLA Ken Pettit has submitted the ICLA as a result we can migrate the licenses to Apache. Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
76 lines
2.3 KiB
C
76 lines
2.3 KiB
C
/****************************************************************************
|
|
* apps/testing/ostest/dev_null.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 <stdio.h>
|
|
#include <unistd.h>
|
|
#include <fcntl.h>
|
|
#include "ostest.h"
|
|
|
|
/****************************************************************************
|
|
* Private Data
|
|
****************************************************************************/
|
|
|
|
static FAR char buffer[1024];
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
int dev_null(void)
|
|
{
|
|
int nbytes;
|
|
int fd;
|
|
|
|
fd = open("/dev/null", O_RDWR);
|
|
if (fd < 0)
|
|
{
|
|
printf("dev_null: ERROR Failed to open /dev/null\n");
|
|
return -1;
|
|
}
|
|
|
|
nbytes = read(fd, buffer, 1024);
|
|
if (nbytes < 0)
|
|
{
|
|
printf("dev_null: ERROR Failed to read from /dev/null\n");
|
|
close(fd);
|
|
return -1;
|
|
}
|
|
|
|
printf("dev_null: Read %d bytes from /dev/null\n", nbytes);
|
|
|
|
nbytes = write(fd, buffer, 1024);
|
|
if (nbytes < 0)
|
|
{
|
|
printf("dev_null: ERROR Failed to write to /dev/null\n");
|
|
close(fd);
|
|
return -1;
|
|
}
|
|
|
|
printf("dev_null: Wrote %d bytes to /dev/null\n", nbytes);
|
|
|
|
close(fd);
|
|
return 0;
|
|
}
|