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/*
* uncompress.c - uncompress a lzo compressed file
*
* Copyright (c) 2010 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <common.h>
#include <command.h>
#include <errno.h>
#include <fcntl.h>
#include <fs.h>
#include <uncompress.h>
static int do_uncompress(struct command *cmdtp, int argc, char *argv[])
{
int from, to, ret;
if (argc != 3)
return COMMAND_ERROR_USAGE;
from = open(argv[1], O_RDONLY);
if (from < 0) {
perror("open");
return 1;
}
to = open(argv[2], O_WRONLY | O_CREAT);
if (to < 0) {
perror("open");
ret = 1;
goto exit_close;
}
ret = uncompress_fd_to_fd(from, to, uncompress_err_stdout);
if (ret)
printf("failed to decompress\n");
close(to);
exit_close:
close(from);
return ret;
}
static const __maybe_unused char cmd_uncompress_help[] =
"Usage: uncompress <infile> <outfile>\n"
"Uncompress a compressed file\n";
BAREBOX_CMD_START(uncompress)
.cmd = do_uncompress,
.usage = "lzop <infile> <outfile>",
BAREBOX_CMD_HELP(cmd_uncompress_help)
BAREBOX_CMD_END
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