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-rwxr-xr-xiptables/iptables-apply17
1 files changed, 8 insertions, 9 deletions
diff --git a/iptables/iptables-apply b/iptables/iptables-apply
index 4683b1b4..c603fb21 100755
--- a/iptables/iptables-apply
+++ b/iptables/iptables-apply
@@ -141,9 +141,9 @@ for opt in $OPTS; do
;;
(*)
case "${OPT_STATE:-}" in
- (SET_TIMEOUT) eval TIMEOUT=$opt;;
+ (SET_TIMEOUT) eval TIMEOUT="$opt";;
(SET_SAVEFILE)
- eval SAVEFILE=$opt
+ eval SAVEFILE="$opt"
[ -z "$SAVEFILE" ] && SAVEFILE="$DEF_SAVEFILE"
;;
esac
@@ -163,13 +163,13 @@ done
# Validate parameters
if [ "$TIMEOUT" -ge 0 ] 2>/dev/null; then
- TIMEOUT=$(($TIMEOUT))
+ TIMEOUT=$((TIMEOUT))
else
echo "Error: timeout must be a positive number" >&2
exit 1
fi
-if [ -n "$SAVEFILE" -a -e "$SAVEFILE" -a ! -w "$SAVEFILE" ]; then
+if [ -n "$SAVEFILE" ] && [ -e "$SAVEFILE" ] && [ ! -w "$SAVEFILE" ]; then
echo "Error: savefile not writable: $SAVEFILE" >&2
exit 8
fi
@@ -205,8 +205,8 @@ esac
### Begin work
# Store old iptables rules to temporary file
-TMPFILE=`mktemp /tmp/$PROGNAME-XXXXXXXX`
-trap "rm -f $TMPFILE" EXIT HUP INT QUIT ILL TRAP ABRT BUS \
+TMPFILE=$(mktemp "/tmp/$PROGNAME-XXXXXXXX")
+trap 'rm -f $TMPFILE' EXIT HUP INT QUIT ILL TRAP ABRT BUS \
FPE USR1 SEGV USR2 PIPE ALRM TERM
if ! "$SAVE" >"$TMPFILE"; then
@@ -231,7 +231,6 @@ case "$MODE" in
"$RUNCMD" &
CMD_PID=$!
( sleep "$TIMEOUT"; kill "$CMD_PID" 2>/dev/null; exit 0 ) &
- CMDTIMEOUT_PID=$!
if ! wait "$CMD_PID"; then
echo "failed."
echo "Error: unknown error running command: $RUNCMD" >&2
@@ -258,13 +257,13 @@ esac
# Prompt user for confirmation
echo -n "Can you establish NEW connections to the machine? (y/N) "
-read -n1 -t "$TIMEOUT" ret 2>&1 || :
+read -r -n1 -t "$TIMEOUT" ret 2>&1 || :
case "${ret:-}" in
(y*|Y*)
# Success
echo
- if [ ! -z "$SAVEFILE" ]; then
+ if [ -n "$SAVEFILE" ]; then
# Write successfully applied rules to the savefile
echo "Writing successfully applied rules to '$SAVEFILE'..."
if ! "$SAVE" >"$SAVEFILE"; then