1 files changed, 53 insertions, 0 deletions
diff --git a/common/cmd_sha1sum.c b/common/cmd_sha1sum.c
new file mode 100644
index 0000000..bb3cff0
--- /dev/null
+++ b/common/cmd_sha1sum.c
@@ -0,0 +1,53 @@
+/*
+ * (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>
+#include <sha1.h>
+
+static int do_sha1sum(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	unsigned long addr, len;
+	unsigned int i;
+	u8 output[20];
+
+	if (argc < 3)
+		return cmd_usage(cmdtp);
+
+	addr = simple_strtoul(argv[1], NULL, 16);
+	len = simple_strtoul(argv[2], NULL, 16);
+
+	sha1_csum((unsigned char *) addr, len, output);
+	printf("SHA1 for %08lx ... %08lx ==> ", addr, addr + len - 1);
+	for (i = 0; i < 20; i++)
+		printf("%02x", output[i]);
+	printf("\n");
+
+	return 0;
+}
+
+U_BOOT_CMD(
+	sha1sum,	3,	1,	do_sha1sum,
+	"compute SHA1 message digest",
+	"address count"
+);