All patches and comments are welcome. Please squash your changes to logical
commits before using git-format-patch and git-send-email to
patches@git.madduck.net.
If you'd read over the Git project's submission guidelines and adhered to them,
I'd be especially grateful.
3 # molly-guard -- wrapper script to prevent erroneous shutdowns via SSH
5 # Copyright © martin f. krafft <madduck@madduck.net>
6 # Released under the terms of the Artistic Licence 2.0
12 ALWAYS_MOLLY=${ALWAYS_MOLLY:-"0"}
13 [ -f /etc/default/${ME} ] && . /etc/default/${ME}
21 eval $EXEC --help 2>&1
24 (*-pretend-ssh) PRETEND_SSH=1;;
28 # require an interactive terminal connected to stdin
31 # we've been asked to always protect this host
32 if [ ${ALWAYS_MOLLY} -eq 1 ]; then
33 echo "W: $ME: ${CMD} is always molly-guarded on this server."
35 # only run if we are being called over SSH, that is if the current terminal
36 # was created by sshd.
37 PTS=$(readlink /proc/$$/fd/0)
38 if ! pgrep -f "^sshd.+${PTS#/dev/}[[:space:]]*$" >/dev/null \
39 && [ -z "${SSH_CONNECTION:-}" ]; then
40 if [ $PRETEND_SSH -eq 1 ]; then
41 echo "I: this is not an SSH session, but --pretend-ssh was given..."
46 echo "W: $ME: SSH session detected!"
51 HOSTNAME="$(hostname --short)"
55 echo "Good thing I asked; I won't $CMD $HOSTNAME ..."
59 trap 'echo;sigh' 1 2 3 9 10 12 15
61 echo -n "Please type in hostname of the machine to $CMD: "
62 read HOSTNAME_USER || :
64 [ "$HOSTNAME_USER" = "$HOSTNAME" ] || sigh
66 trap - 1 2 3 9 10 12 15