From cfe8af3b0629368eeb61354e52ec12cc3d8637bd Mon Sep 17 00:00:00 2001
From: John Klug <john.klug@multitech.com>
Date: Mon, 4 Jun 2018 15:38:53 -0500
Subject: Add ubpasswd clear feature (-c)

---
 src/ubpasswd.sh | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

(limited to 'src')

diff --git a/src/ubpasswd.sh b/src/ubpasswd.sh
index 65e35eb..8a6abf9 100755
--- a/src/ubpasswd.sh
+++ b/src/ubpasswd.sh
@@ -24,7 +24,8 @@ if ! [[ -x /sbin/mts-hashpwd ]] ; then
   exit 1
 fi
 usage() {
-  echo "ubpasswd [-u] [-d] [-s salt] [password]"
+  echo "ubpasswd [-c] [-r] [-u] [-d] [-s salt] [password]"
+  echo "  -c        clear the U-Boot password"
   echo "  -u        means u-boot only (not UNIX password)"
   echo "  -s        salt is user supplied salt"
   echo "  -r        returns true if U-Boot password"
@@ -41,8 +42,13 @@ usage() {
 ((hassalt=0))
 ((debug=0))
 ((upwd=0))
-while getopts ":dfrs:u" opt; do
+while getopts ":cdfrs:u" opt; do
   case $opt in
+    c)
+      u-boot setenv mtsp
+      u-boot setenv mtss
+      exit 0
+      ;;
     f)
       if ! /bin/fgrep "mts password protected" /dev/mtdblock2 >/dev/null 2>&1;  then
 	echo "U-Boot does not support password protection."
-- 
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