Merge branch 'misc' of git://git.denx.de/u-boot-blackfin

1 files changed, 59 insertions, 0 deletions

diff --git a/common/cmd_unzip.c b/common/cmd_unzip.c
new file mode 100644
index 0000000..6483b92
--- /dev/null
+++ b/common/cmd_unzip.c
@@ -0,0 +1,59 @@
+/*
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * 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 as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * 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>
+
+static int do_unzip(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	unsigned long src, dst;
+	unsigned long src_len = ~0UL, dst_len = ~0UL;
+	char buf[32];
+
+	switch (argc) {
+		case 4:
+			dst_len = simple_strtoul(argv[3], NULL, 16);
+			/* fall through */
+		case 3:
+			src = simple_strtoul(argv[1], NULL, 16);
+			dst = simple_strtoul(argv[2], NULL, 16);
+			break;
+		default:
+			return cmd_usage(cmdtp);
+	}
+
+	if (gunzip((void *) dst, dst_len, (void *) src, &src_len) != 0)
+		return 1;
+
+	printf("Uncompressed size: %ld = 0x%lX\n", src_len, src_len);
+	sprintf(buf, "%lX", src_len);
+	setenv("filesize", buf);
+
+	return 0;
+}
+
+U_BOOT_CMD(
+	unzip,	4,	1,	do_unzip,
+	"unzip a memory region",
+	"srcaddr dstaddr [dstsize]"
+);