nuttx-apps/system/zmodem/rz_main.c

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/****************************************************************************
* system/zmodem/rz_main.c
*
* Copyright (C) 2013 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 <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <signal.h>
#include <fcntl.h>
#include <libgen.h>
#include <time.h>
#include <errno.h>
#include "system/zmodem.h"
/****************************************************************************
* Private Functions
****************************************************************************/
static void show_usage(FAR const char *progname, int errcode)
{
fprintf(stderr, "USAGE: %s [OPTIONS]\n",
progname);
fprintf(stderr, "\nWhere OPTIONS include the following:\n");
fprintf(stderr, "\t-d <device>: Communication device to use. Default: %s\n",
CONFIG_SYSTEM_ZMODEM_DEVNAME);
fprintf(stderr, "\t-h: Show this text and exit\n");
exit(errcode);
}
/****************************************************************************
* Public Functions
****************************************************************************/
#ifdef CONFIG_BUILD_KERNEL
int main(int argc, FAR char *argv[])
#else
int rz_main(int argc, FAR char **argv)
#endif
{
ZMRHANDLE handle;
FAR const char *devname = CONFIG_SYSTEM_ZMODEM_DEVNAME;
int exitcode = EXIT_FAILURE;
int option;
int ret;
int fd;
/* Parse input parameters */
while ((option = getopt(argc, argv, ":d:h")) != ERROR)
{
switch (option)
{
case 'd':
devname = optarg;
break;
case 'h':
show_usage(argv[0], EXIT_SUCCESS);
break;
case ':':
fprintf(stderr, "ERROR: Missing required argument\n");
show_usage(argv[0], EXIT_FAILURE);
break;
default:
case '?':
fprintf(stderr, "ERROR: Unrecognized option\n");
show_usage(argv[0], EXIT_FAILURE);
break;
}
}
/* Nothing else is expected on the command line */
if (optind < argc)
{
printf("ERROR: Too many command line arguments\n");
show_usage(argv[0], EXIT_FAILURE);
}
/* Open the device for read/write access */
fd = open(devname, O_RDWR);
if (fd < 0)
{
fprintf(stderr, "ERROR: Failed to open %s\n", devname);
goto errout;
}
/* Get the Zmodem handle */
handle = zmr_initialize(fd);
if (!handle)
{
fprintf(stderr, "ERROR: Failed to get Zmodem handle\n");
goto errout_with_device;
}
/* And begin reception of files */
ret = zmr_receive(handle);
if (ret < 0)
{
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fprintf(stderr, "ERROR: File reception failed: %d\n", ret);
goto errout_with_zmodem;
}
exitcode = EXIT_SUCCESS;
errout_with_zmodem:
(void)zmr_release(handle);
errout_with_device:
(void)close(fd);
errout:
return exitcode;
}