a6efa19e43
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3474 42af7a65-404d-4744-a932-0658087f49c3
101 lines
3.3 KiB
C
101 lines
3.3 KiB
C
/****************************************************************************
|
|
* examples/serloop/main.c
|
|
*
|
|
* Copyright (C) 2008-2009, 2011 Gregory Nutt. All rights reserved.
|
|
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
|
*
|
|
* 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 <stdint.h>
|
|
#include <stdio.h>
|
|
#include <unistd.h>
|
|
|
|
/****************************************************************************
|
|
* Definitions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Private Data
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* user_start
|
|
****************************************************************************/
|
|
|
|
int user_start(int argc, char *argv[])
|
|
{
|
|
#ifdef CONFIG_EXAMPLES_SERLOOP_BUFIO
|
|
int ch;
|
|
|
|
for (;;)
|
|
{
|
|
ch = getchar();
|
|
if (ch < 1)
|
|
{
|
|
ch = '!';
|
|
}
|
|
else if ((ch < 0x20 || ch > 0x7e) && ch != '\n')
|
|
{
|
|
ch = '.';
|
|
}
|
|
putchar(ch);
|
|
}
|
|
#else
|
|
uint8_t ch;
|
|
int ret;
|
|
|
|
for (;;)
|
|
{
|
|
ret = read(0, &ch, 1);
|
|
if (ret < 1)
|
|
{
|
|
ch = '!';
|
|
}
|
|
else if ((ch < 0x20 || ch > 0x7e) && ch != '\n')
|
|
{
|
|
ch = '.';
|
|
}
|
|
ret = write(1, &ch, 1);
|
|
}
|
|
#endif
|
|
return 0;
|
|
}
|
|
|