* Prevent set -u from falling over unset SSH_CONNECTION variable

[code/molly-guard.git] / shutdown

diff --git a/shutdown b/shutdown
index 29bd8fe607102b41839c1ba30f78fc3d7e1c6d7e..0c52d92803e65b8e7615b918e9910e7ea55102b6 100755 (executable)
--- a/shutdown
+++ b/shutdown
@@ -91,7 +91,7 @@ test -t 0                    || do_real_cmd
 # was created by sshd.
 PTS=$(readlink /proc/$$/fd/0)
 if ! pgrep -f "^sshd.+${PTS#/dev/}[[:space:]]*$" >/dev/null \
 # was created by sshd.
 PTS=$(readlink /proc/$$/fd/0)
 if ! pgrep -f "^sshd.+${PTS#/dev/}[[:space:]]*$" >/dev/null \

-  && [ -z "$SSH_CONNECTION" ]; then
+  && [ -z "${SSH_CONNECTION:-}" ]; then

     if [ $PRETEND_SSH -eq 1 ]; then
       echo "I: this is not an SSH session, but --pretend-ssh was given..."
     else
     if [ $PRETEND_SSH -eq 1 ]; then
       echo "I: this is not an SSH session, but --pretend-ssh was given..."
     else