Minor tweaks.

install_iptables.sh

@@ -73,7 +73,10 @@ function cont() {
         read -n 1 YN
         YN=${YN:-N}
         case $YN in
-        [Yy]) return 0 ;;
+        [Yy])
+            echo -e "\n"
+            return 0
+            ;;
         [Nn]) error "\nExiting." ;;
         *) error "\nInvalid response.\n" false ;;
         esac

iptables_redirect.sh

@@ -8,7 +8,6 @@
 #
 # Script pro přesměrování portu pro stanici SWS12500
 
-
 STATION_IP=[_STATION_IP_]
 HA=[_HA_]
 SRC_PORT=[_SRC_PORT_]
@@ -22,12 +21,14 @@ GREEN_COLOR='\033[0;32m'
 GREEN_YELLOW='\033[1;33m'
 NO_COLOR='\033[0m'
 
+function info() { echo -e "${GREEN_COLOR}$1${NO_COLOR}"; }
+function warn() { echo -e "${GREEN_YELLOW}$1${NO_COLOR}"; }
+function error() {
+    echo -e "${RED_COLOR}$1${NO_COLOR}"
+    if [ "$2" != "false" ]; then exit 1; fi
+}
 
-function info () { echo -e "${GREEN_COLOR}INFO: $1${NO_COLOR}";}
-function warn () { echo -e "${GREEN_YELLOW}WARN: $1${NO_COLOR}";}
-function error () { echo -e "${RED_COLOR}ERROR: $1${NO_COLOR}"; if [ "$2" != "false" ]; then exit 1;fi; }
-
-function check () {
+function check() {
     echo -n "Checking dependencies: '$1' ... "
     if [ -z "$(command -v "$1")" ]; then
         error "not installed" $2
@@ -37,7 +38,6 @@ function check () {
     return 0
 }
 
-
 echo
 echo "**************************************************************"
 echo "*                                                            *"
@@ -54,7 +54,6 @@ INSTALL_IPTABLES=$?
 check "apk" false
 APK_MISSING=$?
 
-
 if [ $APK_MISSING -eq 1 ] && [ $INSTALL_IPTABLES -eq 1 ]; then
     error "Could not install and run iptables.\n'apk' installer is missing and 'iptables' are not installed.\n"
 fi
@@ -77,6 +76,7 @@ $(iptables -C ${RULE[@]} 2>/dev/null)
 if [ $? -eq 0 ]; then
     warn "Rule is already present in PREROUTING chain."
 else
+    info "not found."
     echo -n "Inserting iptables rule to PREROUTING chain ... "
     $(iptables -I ${RULE[@]})
 fi
@@ -86,4 +86,5 @@ if [ $EXIT_STATUS -ne 0 ]; then
     error "Rule could not be added!"
 fi
 
-info "iptables are set to forward port $SRC_PORT -> $DST_PORT for station's IP: $STATION_IP"
+info "OK."
+info "iptables are now set to redirect incomming connections from $STATION_IP:Any -> $HA:$SRC_PORT to $HA:$DST_PORT"