65 lines
1.4 KiB
C
65 lines
1.4 KiB
C
/*
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* uncompress.c - uncompress a compressed file
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*
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* Copyright (c) 2010 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#include <common.h>
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#include <command.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <fs.h>
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#include <uncompress.h>
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static int do_uncompress(int argc, char *argv[])
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{
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int from, to, ret;
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if (argc != 3)
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return COMMAND_ERROR_USAGE;
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from = open(argv[1], O_RDONLY);
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if (from < 0) {
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perror("open");
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return 1;
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}
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to = open(argv[2], O_WRONLY | O_CREAT);
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if (to < 0) {
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perror("open");
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ret = 1;
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goto exit_close;
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}
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ret = uncompress_fd_to_fd(from, to, uncompress_err_stdout);
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if (ret)
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printf("failed to decompress\n");
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close(to);
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exit_close:
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close(from);
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return ret;
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}
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BAREBOX_CMD_START(uncompress)
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.cmd = do_uncompress,
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BAREBOX_CMD_DESC("uncompress a compressed file")
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BAREBOX_CMD_OPTS("INFILE OUTFILE")
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BAREBOX_CMD_GROUP(CMD_GRP_FILE)
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BAREBOX_CMD_END
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