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nuttx-apps/system/zmodem/sz_main.c
Xiang Xiao 857158451b Unify the void cast usage 
1.Remove void cast for function because many place ignore the returned value witout cast
2.Replace void cast for variable with UNUSED macro

Change-Id: Ie644129a563244a6397036789c4c3ea83c4e9b09
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2020-01-02 23:21:01 +08:00

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/****************************************************************************
* system/zmodem/sz_main.c
*
* Copyright (C) 2013, 2018 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 <termios.h>
#include <libgen.h>
#include <time.h>
#include <errno.h>
#include "system/zmodem.h"
#include "zm.h"
/****************************************************************************
* Private Functions
****************************************************************************/
static void show_usage(FAR const char *progname, int errcode)
{
fprintf(stderr, "USAGE: %s [OPTIONS] <lname> [<lname> [<lname> ...]]\n",
progname);
fprintf(stderr, "\nWhere:\n");
fprintf(stderr, "\t<lname> is the local file name\n");
fprintf(stderr, "\nand OPTIONS include the following:\n");
fprintf(stderr, "\t-d <device>: Communication device to use. Default: %s\n",
CONFIG_SYSTEM_ZMODEM_DEVNAME);
fprintf(stderr, "\t-r <rname>: Remote file name. Default <lname>\n");
fprintf(stderr, "\t-x <mode>: Transfer type\n");
fprintf(stderr, "\t\t0: Normal file (default)\n");
fprintf(stderr, "\t\t1: Binary file\n");
fprintf(stderr, "\t\t2: Convert \\n to local EOF convention\n");
fprintf(stderr, "\t\t3: Resume or append to existing file\n");
fprintf(stderr, "\t-o <option>: Transfer option\n");
fprintf(stderr, "\t\t0: Implementation dependent\n");
fprintf(stderr, "\t\t1: Transfer if source newer or longer\n");
fprintf(stderr, "\t\t2: Transfer if different CRC or length\n");
fprintf(stderr, "\t\t3: Append to existing file, if any\n");
fprintf(stderr, "\t\t4: Replace existing file (default)\n");
fprintf(stderr, "\t\t5: Transfer if source is newer\n");
fprintf(stderr, "\t\t6: Transfer if dates or lengths different\n");
fprintf(stderr, "\t\t7: Protect: transfer only if dest doesn't exist\n");
fprintf(stderr, "\t\t8: Change filename if destination exists\n");
fprintf(stderr, "\t-s: Skip if file not present at receiving end\n");
fprintf(stderr, "\t-h: Show this text and exit\n");
exit(errcode);
}
/****************************************************************************
* Public Functions
****************************************************************************/
int main(int argc, FAR char *argv[])
{
enum zm_xfertype_e xfrtype = XM_XFERTYPE_NORMAL;
enum zm_option_e xfroption = XM_OPTION_REPLACE;
ZMSHANDLE handle;
FAR const char *rname = NULL;
FAR const char *devname = CONFIG_SYSTEM_ZMODEM_DEVNAME;
FAR char *endptr;
bool skip = false;
long tmp;
int exitcode = EXIT_FAILURE;
#ifdef CONFIG_SERIAL_TERMIOS
struct termios saveterm;
#endif
int option;
int ret;
int fd;
/* Parse input parameters */
while ((option = getopt(argc, argv, ":d:ho:r:sx:")) != ERROR)
{
switch (option)
{
case 'd':
devname = optarg;
break;
case 'h':
show_usage(argv[0], EXIT_SUCCESS);
break;
case 'o':
tmp = strtol(optarg, &endptr, 10);
if (tmp < 0 || tmp > 8)
{
fprintf(stderr, "ERROR: Transfer option out of range: %ld\n", tmp);
show_usage(argv[0], EXIT_FAILURE);
}
else
{
xfroption = (enum zm_option_e)tmp;
}
break;
case 'r':
rname = optarg;
break;
case 's':
skip = true;
break;
case 'x':
tmp = strtol(optarg, &endptr, 10);
if (tmp < 0 || tmp > 3)
{
fprintf(stderr, "ERROR: Transfer type out of range: %ld\n", tmp);
show_usage(argv[0], EXIT_FAILURE);
}
else
{
xfrtype = (enum zm_xfertype_e)tmp;
}
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;
}
}
/* There should be one final parameters remaining on the command line */
if (optind >= argc)
{
printf("ERROR: Missing required 'lname' argument\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;
}
#ifdef CONFIG_SERIAL_TERMIOS
/* Save the current terminal setting */
tcgetattr(fd, &saveterm);
/* Enable the raw mode */
zm_rawmode(fd);
#ifdef CONFIG_SYSTEM_ZMODEM_FLOWC
/* Enable hardware Rx/Tx flow control */
zm_flowc(fd);
#endif
#endif
/* Get the Zmodem handle */
handle = zms_initialize(fd);
if (!handle)
{
fprintf(stderr, "ERROR: Failed to get Zmodem handle\n");
goto errout_with_device;
}
/* And perform the transfer(s) */
for (; optind < argc; optind++)
{
/* By the default, the remote file name is the same as the local file
* name. This will, of course, fail miserably if rname is specified
* and there more than one lnames on the command line. Don't do that.
*/
FAR const char *nextlname = argv[optind];
FAR const char *nextrname;
FAR char *ralloc;
/* Get the next remote file name */
nextrname = rname;
ralloc = NULL;
if (!nextrname)
{
/* No remote filename, use the basename of the local filename.
* NOTE: that we have to duplicate the local filename to do this
* because basename() modifies the original string.
*/
ralloc = strdup(nextlname);
if (!ralloc)
{
fprintf(stderr, "ERROR: Out-of-memory\n");
goto errout_with_device;
}
nextrname = basename(ralloc);
}
/* Transfer the file */
ret = zms_send(handle, nextlname, nextrname, xfrtype, xfroption, skip);
/* Free any allocations made for the remote file name */
if (ralloc)
{
free(ralloc);
}
/* Check if the transfer was successful */
if (ret < 0)
{
fprintf(stderr, "ERROR: Transfer of %s failed: %d\n",
nextlname, errno);
goto errout_with_zmodem;
}
}
exitcode = EXIT_SUCCESS;
errout_with_zmodem:
zms_release(handle);
errout_with_device:
#ifdef CONFIG_SERIAL_TERMIOS
# ifdef CONFIG_SYSTEM_ZMODEM_FLOWC
/* Flush the serial output to assure do not hang trying to drain it */
tcflush(fd, TCIOFLUSH);
#endif
/* Restore the saved terminal setting */
tcsetattr(fd, TCSANOW, &saveterm);
#endif
close(fd);
errout:
return exitcode;
}
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