Provide access to the lzma decompressor from the command line.
Signed-off-by: Joe Hershberger joe.hershber...@ni.com
---
common/Makefile | 3 +++
common/cmd_unlzma.c | 69 +
2 files changed, 72 insertions(+)
create mode 100644 common/cmd_unlzma.c
diff --git a/common/Makefile b/common/Makefile
index 3d62775..b8568ba 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -153,6 +153,9 @@ COBJS-$(CONFIG_CMD_TSI148) += cmd_tsi148.o
COBJS-$(CONFIG_CMD_UBI) += cmd_ubi.o
COBJS-$(CONFIG_CMD_UBIFS) += cmd_ubifs.o
COBJS-$(CONFIG_CMD_UNIVERSE) += cmd_universe.o
+ifdef CONFIG_LZMA
+COBJS-$(CONFIG_CMD_UNLZMA) += cmd_unlzma.o
+endif
COBJS-$(CONFIG_CMD_UNZIP) += cmd_unzip.o
ifdef CONFIG_CMD_USB
COBJS-y += cmd_usb.o
diff --git a/common/cmd_unlzma.c b/common/cmd_unlzma.c
new file mode 100644
index 000..c724607
--- /dev/null
+++ b/common/cmd_unlzma.c
@@ -0,0 +1,69 @@
+/*
+ * (C) Copyright 2011
+ * Joe Hershberger, National Instruments, joe.hershber...@ni.com
+ *
+ * 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
+#include lzma/LzmaTypes.h
+#include lzma/LzmaDec.h
+#include lzma/LzmaTools.h
+
+int do_unlzma(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ unsigned long src, dst;
+ unsigned long src_len = ~0UL;
+ size_t dst_len = ~0UL;
+ int ret;
+ char buf[32];
+
+ switch (argc) {
+ case 5:
+ dst_len = simple_strtoul(argv[4], NULL, 16);
+ /* fall through */
+ case 4:
+ src = simple_strtoul(argv[1], NULL, 16);
+ src_len = simple_strtoul(argv[2], NULL, 16);
+ dst = simple_strtoul(argv[3], NULL, 16);
+ break;
+ default:
+ return CMD_RET_USAGE;
+ }
+
+ ret = lzmaBuffToBuffDecompress((void *)dst, dst_len, (void *)src,
+ src_len);
+ if (ret != SZ_OK) {
+ printf(unlzma: uncompress or overwrite error %d\n, ret);
+ return -1;
+ }
+ printf(Uncompressed size: %u\n, dst_len);
+ sprintf(buf, %lX, (unsigned long) dst_len);
+ setenv(filesize, buf);
+
+ return 0;
+}
+
+U_BOOT_CMD(
+ unlzma, 5, 1, do_unlzma,
+ unlzma a memory region,
+ srcaddr srcsize dstaddr [dstsize]
+);
+
--
1.7.11.5
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