diff options
Diffstat (limited to 'apps/examples/ostest/dev_null.c')
-rw-r--r-- | apps/examples/ostest/dev_null.c | 92 |
1 files changed, 0 insertions, 92 deletions
diff --git a/apps/examples/ostest/dev_null.c b/apps/examples/ostest/dev_null.c deleted file mode 100644 index 34508d05e..000000000 --- a/apps/examples/ostest/dev_null.c +++ /dev/null @@ -1,92 +0,0 @@ -/**************************************************************************** - * examples/ostest/dev_null.c - * - * Copyright (C) 2007, 2008 Gregory Nutt. All rights reserved. - * Author: Gregory Nutt <gnutt@nuttx.org> - * - * 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. - * 3. Neither the name NuttX nor the names of its contributors may be - * used to endorse or promote products derived from this software - * without specific prior written permission. - * - * 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. - * - ****************************************************************************/ - -/**************************************************************************** - * Included Files - ****************************************************************************/ - -#include <nuttx/config.h> -#include <stdio.h> -#include <unistd.h> -#include <fcntl.h> -#include "ostest.h" - -/**************************************************************************** - * Private Data - ****************************************************************************/ - -#if CONFIG_NFILE_DESCRIPTORS > 0 - -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; -} - -#endif /*CONFIG_NFILE_DESCRIPTORS */ |