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-rw-r--r--commands/uncompress.c70
1 files changed, 70 insertions, 0 deletions
diff --git a/commands/uncompress.c b/commands/uncompress.c
new file mode 100644
index 0000000..fff6227
--- /dev/null
+++ b/commands/uncompress.c
@@ -0,0 +1,70 @@
+/*
+ * 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
+