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-rw-r--r--common/cmd_unzip.c59
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]"
+);