tasty reborn terminal locking script

thought this wasn't handy, but i've had several times recently where it would have been.  newly cleaned it up and added helpful text feedback, plus now it will show the nechung oracle when locked.

diff --git a/scripts/tty/lockem.sh b/scripts/tty/lockem.sh
new file mode 100644 (file)
index 0000000..473e086
--- /dev/null
+++ b/scripts/tty/lockem.sh
@@ -0,0 +1,54 @@
+#!/bin/bash
+
+# Can be used to lock up a terminal screen until the user enters the correct
+# password.  Pretty sturdy.  Store your password in the file "PASSWORDFILE",
+# configured below.
+#
+# Thanks to Kevin Wika for this shell.
+
+source "$FEISTY_MEOW_SCRIPTS/core/launch_feisty_meow.sh"
+
+trap '' HUP
+trap '' INT
+trap '' QUIT
+trap '' STOP
+trap '' EXIT
+trap '' TSTP
+
+PASSWORDFILE=$TMP/lockup_password_file
+LOGFILE=$TMP/session-lockup.log
+
+if [ ! -f "$PASSWORDFILE" ]; then
+  sep
+  echo "no password file is configured.  please put your unlock password in:"
+  echo "$PASSWORDFILE"
+  sep
+  exit 1
+fi
+
+read password <$PASSWORDFILE
+
+echo "$(date_stringer): +++ terminal locked" >>$LOGFILE
+
+attempt=""
+
+stty -echo
+while [[ $attempt != $password ]]; do
+  if [ ! -z "$attempt" ]; then
+    echo "$(date_stringer): login attempt with wrong password at $(date)" >>$LOGFILE
+  fi
+  clear
+  nechung
+  echo -ne "\npassword: "
+  read attempt
+done
+stty echo
+
+echo "$(date_stringer): successful login" >>$LOGFILE
+echo "$(date_stringer): --- terminal unlocked" >>$LOGFILE
+
+clear
+echo "hi $USER, your password has been accepted.  enjoy your computer."
+echo
+
+