setnet.dash moved to setnet.sh -- Fixed a few bugs

1 files changed, 1357 insertions, 626 deletions

diff --git a/setnet.sh b/setnet.sh
index 3a173c0..7e39341 100755
--- a/setnet.sh
+++ b/setnet.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -19,7 +19,8 @@
 #
 # ----------------------------------------------------------------------
 #
-# (c) KatolaZ (katolaz@freaknet.org) -- 2016/12/26
+# Copyleft (C) Vincenzo "KatolaZ" Nicosia (katolaz@freaknet.org) --
+# (2016, 2017)
 #
 #
 
@@ -28,44 +29,102 @@
 ## Initialisation
 ## 
 
-VERSION=0.1
+VERSION=0.2
 
-DIALOGRC=~/.dialogrc
 
+TOPSTR="setnet-${VERSION} [user: $(id -run)]"
+DIALOG="dialog --backtitle \"${TOPSTR}\" "
 
-TOPSTR="setnet-0.1 [user: `id -run`]"
 
-DIALOG="dialog --backtitle \"${TOPSTR}\" "
+###############################
+##                           ##
+## Internal config variables ##
+##                           ##
+###############################
+
+##
+## Required dependencies. If any of those commands is missing,
+## the script will exit
+##
+
+HARD_DEPS="ip dhclient dialog netstat"
+
+##
+## Suggested dependencies. The script will issue a warning if any of
+## those commands is missing
+##
 
+SOFT_DEPS="wpa_cli wpa_supplicant"
 
+##
+## Optional dependencies. The script will check if those dependencies
+## exist, and if they do, will set a variable HAS_OPTS which contains
+## the names of the commands actually found
+##
+
+OPT_DEPS="host ping traceroute netstat pastebinit"
 
+#################################
 
-TMPFILE=$( (tempfile) 2>/dev/null) || TMPFILE=/tmp/setnet_$$
-WPA_PIDFILE=$( (tempfile) 2>/dev/null) || WPA_PIDFILE=/tmp/setnet_wpapid_$$
+#####################################
+##                                 ##
+## HEIGHT/WIDTH of various dialogs ##
+##                                 ##
+#####################################
+
+##
+## Regular windows
+##
 
 WINDOW_WIDTH=75
 WINDOW_HEIGHT=20
 
+##
+## Infoboxes
+##
 INFO_WIDTH=40
 INFO_HEIGHT=10
 
+
+##
+## Forms
+##
 FORM_WIDTH=60
 FORM_HEIGHT=12
 
+##
+## Large windows
+##
+
+LARGE_WIDTH=80
+LARGE_HEIGHT=20
+
+
+#################################
+
+################################
+##                            ##
+## Supported network families ##
+##                            ##
+################################
+
 NET_FAMILIES="inet inet6"
 
+#################################
+
 ##
-## Load setnetrc 
+## Load the configuration file "setnetrc"
 ##
 
-function load_setnetrc(){
+##function 
+load_setnetrc(){
 
 	WPA_FILE=""
 	LOGFILE=""
 	## If we were given a parameter, is the rc file to load...
 	##	
 	if [ $# -ge 1 ]; then
-		. $1
+		  . "$1"
 		return
 	fi
 	
@@ -78,7 +137,7 @@ function load_setnetrc(){
 	##
 
 	if [ -f /etc/setnetrc ]; then
-		. /etc/setnetrc
+     SETNETRC=/etc/setnetrc
 	fi
 
 	##
@@ -86,9 +145,10 @@ function load_setnetrc(){
 	##
 
 	if [ -f ~/.setnetrc ]; then
-		. ~/.setnetrc
+     SETNETRC=~/.setnetrc
 	fi
 
+  . ${SETNETRC}
 
 	if [ -z ${WPA_FILE} ]; then
 		echo "Could not find WPA_FILE defined anywhere. Exiting"
@@ -102,7 +162,12 @@ function load_setnetrc(){
 }
 
 
-function cleanup(){
+##
+## handler called upon exit/signal (NONE HUP INT TRAP TERM QUIT)
+##
+
+##function 
+cleanup(){
 	rm -f ${TMPFILE}
 	rm -f ${WPA_PIDFILE}
 }
@@ -117,45 +182,146 @@ function cleanup(){
 ##
 ## log() takes two arguments, namely the label and the message
 ##
-## if the label is "_self", print the name of the function which
-## called log()
 ##
-function log(){
+##function 
+log(){
+    
+    ##local
+    LABEL=$1
+    ##local
+    MSG=$2
+    
+	  echo  "${LABEL}:" "${MSG}" >> "${LOGFILE}"
+	  
+}
 
-	local LABEL=$1
-	local MSG=$2
+##
+## Check whether the shell which called the script is supported, or
+## exit. Currently, we support the follwing shells:
+##
+## - bash
+## - busybox
+## - dash
+## - ksh
+## - mksh
+## - posh
+## - sh
+## - yash
+##
 
-	if [ ${LABEL} == "_self" ]; then
-		LABEL=${FUNCNAME[1]}
-	fi
-	echo -e "${LABEL}:" "${MSG}" >> "${LOGFILE}"
-	
+##function
+check_shell(){
+
+    ##
+    ## FIXME!!! THIS TEST DOES NOT WORK yet...
+    ## 
+    CUR_SH=$(ps -p $$ -o comm=)
+    case ${CUR_SH} in
+        ash|bash|busybox|dash|ksh|mksh|posh|sh|yash)
+            log "check_shell" "The current shell (${CUR_SH}) is supported"
+            return
+            ;;
+        *)
+            log "check_shell" "The current shell (${CUR_SH}) is not supported"
+            echo "The current shell (${CUR_SH}) is not supported. Exiting..."
+            exit 1
+            ;;
+    esac
 }
 
-##########################################
 
-function edit_file(){
+##
+## Check dependencies
+##
+## - check if the current shell is supported through check_shell
+##
+## - each command in HARD_DEPS MUST exist, or the script exits
+##
+## - each command in SOFT_DEPS SHOULD exist, or the script will log a
+##   warning
+##
+## - each command in OPT_DEPS MIGHT exist, and if it does its name is
+##   included in the variable "HAS_OPTS"
+##
+
+##function
+check_deps(){
+
+    ## FIXME FIRST.... check_shell
+    
+    for h in ${HARD_DEPS}; do
+        _W=$(which ${h})
+        if [ -z "${_W}" ]; then
+            echo "Error: required command \"${h}\" not found. Exiting..."
+            exit 1
+        fi
+        log "check_deps" "NOTICE: required command '${h}'...found"
+    done
+    
+    for s in ${SOFT_DEPS}; do
+        _S=$(which ${s})
+        if [ -z "${_S}" ]; then
+            log "check_deps" "WARNING: suggested command '${s}' not found! Some functions might not work properly"
+        fi
+    done
+
+    HAS_OPTS=""
+    for o in ${OPT_DEPS}; do
+        _O=$(which ${o})
+        if [ -n "${_O}" ]; then
+            HAS_OPTS=" ${HAS_OPTS} ${o} "
+            log "check_deps" "NOTICE: optional command '${o}'...found"
+        else
+            log "check_deps" "NOTICE: optional command '${o}' not found!"
+        fi
+    done
+
+    log "check_deps" "HAS_OPTS: \"${HAS_OPTS}\""
+    
+}
 
-	local FILEIN=$1
-	log "edit_file" "editing file ${FILEIN}"
-	eval "${DIALOG} --title 'Editing file: ${FILEIN}' \
-			--editbox ${FILEIN} ${WINDOW_HEIGHT} ${WINDOW_WIDTH} 2> ${TMPFILE}"
+##
+## Generic function fo unimplemented features. It just pops up a
+## message-box and returns
+##
 
-	if [ $? -eq 0 ]; then
-		log "edit_file" "Copying ${TMPFILE} into ${FILEIN}"
-		if cp ${TMPFILE} ${FILEIN}
-		then
-			eval "${DIALOG}   --clear --msgbox 'File ${FILEIN} saved successfully' \
+##function
+unimplemented(){
+
+    LABEL=$1
+    
+		eval "${DIALOG}  --msgbox 'Sorry! '$LABEL' not implemented, yet!' \
+						  ${INFO_HEIGHT} ${INFO_WIDTH}" 2>${TMPFILE}
+}
+
+
+
+##########################################
+
+##function 
+edit_file(){
+
+    ##local 
+    FILEIN=$1
+	  log "edit_file" "editing file ${FILEIN}"
+	  eval "${DIALOG} --title 'Editing file: ${FILEIN}' \
+			--editbox ${FILEIN} ${WINDOW_HEIGHT} ${WINDOW_WIDTH}" 2> ${TMPFILE}
+    
+	  if [ $? -eq 0 ]; then
+		    log "edit_file" "Copying ${TMPFILE} into ${FILEIN}"
+		    if cp "${TMPFILE}" "${FILEIN}"
+		    then
+			      eval "${DIALOG}   --clear --msgbox 'File ${FILEIN} saved successfully' \
 				   ${INFO_HEIGHT} ${INFO_WIDTH}"
-		else
-			eval "${DIALOG}   --clear --msgbox 'Error saving file ${FILEIN}' \
+		    else
+			      eval "${DIALOG}   --clear --msgbox 'Error saving file ${FILEIN}' \
 				   ${INFO_HEIGHT} ${INFO_WIDTH}"
-		fi
-	else
-		log "edit_file" "Editing of ${FILEIN} aborted..."xs
-		eval "${DIALOG}   --clear --msgbox 'File ${FILEIN} not saved' \
+		    fi
+	  else
+		    log "edit_file" "Editing of ${FILEIN} aborted..."
+		    eval "${DIALOG}   --clear --msgbox 'File ${FILEIN} not saved' \
 			   ${INFO_HEIGHT} ${INFO_WIDTH}"
-	fi
+	  fi
 }
 
 
@@ -164,50 +330,55 @@ function edit_file(){
 ##
 ## Read all the configured addresses for a given inet family
 ##
-function get_addr_family(){
+##function 
+get_addr_family(){
 	
-	local DEVNAME=$1
-	local DEVFAMILY=$2
-
-	NUMADDR=`ip -f ${DEVFAMILY} addr show ${DEVNAME} | grep ${DEVFAMILY} | wc -l`
-	ADDR_STR=""
-	for i in `seq ${NUMADDR}`; do 
-		ADDR=`ip -f ${DEVFAMILY} addr show ${DEVNAME} | grep ${DEVFAMILY} | \
-			tail -n +$i | head -1 | sed -r -e "s:^\ +::g" | cut -d " " -f 2,4,6 |\
-			sed -r -e "s:\ : -- :g"`
-		ADDR_STR="${ADDR_STR}\n${DEVFAMILY}: ${ADDR}\n"
-	done
+##local 
+    DEVNAME=$1
+    ##local 
+    DEVFAMILY=$2
+    
+    NUMADDR=$(ip -f "${DEVFAMILY}" addr show "${DEVNAME}" | grep -c "${DEVFAMILY}")
+	  ADDR_STR=""
+	  for i in $(seq ${NUMADDR}); do 
+		    ADDR=$(ip -f "${DEVFAMILY}" addr show "${DEVNAME}" | grep "${DEVFAMILY}" | \
+			                tail -n +$i | head -1 | sed -r -e "s:^\ +::g" | cut -d " " -f 2,4,6 |\
+			                sed -r -e "s:\ : -- :g")
+		    ADDR_STR="${ADDR_STR}\n${DEVFAMILY}: ${ADDR}\n"
+	  done
 }
 
 ##
 ## Show the current configuration of a given device
 ##
 
-function show_device_conf(){
+##function 
+show_device_conf(){
 
-	local DEVNAME=$1
-	if [ ${DEVNAME} == "" ]; then
+##local 
+DEVNAME=$1
+	if [ -z "${DEVNAME}" ]; then
 		return -1
 	fi
 
-	DEVMAC=`ip link show ${DEVNAME} | tail -n +2 | sed -r 's/^\ +//g' | cut -d " " -f 2`
+	DEVMAC=$(ip link show "${DEVNAME}" | tail -n +2 | sed -r 's/^\ +//g' | cut -d " " -f 2)
 	DEVCONF="MAC: ${DEVMAC}\n"
 
-	log "_self" "NET_FAMILIES: \"${NET_FAMILIES}\""
+	log "show_device_conf" "NET_FAMILIES: \"${NET_FAMILIES}\""
 	
 	for f in ${NET_FAMILIES}; do
-		get_addr_family ${DEVNAME} ${f}
-		log "_self" "family: ${f} ADDR_STR: \"${ADDR_STR}\""
+		  get_addr_family ${DEVNAME} ${f}
+		  log "show_device_conf" "family: ${f} ADDR_STR: \"${ADDR_STR}\""
 		
 		if [ -z "${ADDR_STR}" ]; then 
 			DEVCONF="${DEVCONF}${f}: Unconfigured\n"
 		else
 			DEVCONF="${DEVCONF}${ADDR_STR}"
 		fi
-		log "_self" "DEVCONF: ${DEVCONF}"
+		log "show_device_conf" "DEVCONF: ${DEVCONF}"
 	done
 
-	DEVCONF="${DEVCONF}\n== name servers ==\n`cat /etc/resolv.conf | grep '^nameserver'`"
+	DEVCONF="${DEVCONF}\n== name servers ==\n$(grep '^nameserver' /etc/resolv.conf)"
 	
 	eval "${DIALOG}   --clear --title 'Current configuration of device: ${DEVNAME}' \
 		--msgbox '\n\n${DEVCONF}' ${WINDOW_HEIGHT} ${WINDOW_WIDTH} "
@@ -217,16 +388,24 @@ function show_device_conf(){
 
 
 
-function config_ethernet_static(){
+##function 
+config_ethernet_static(){
 
-	local DEV_IP="192.168.1.2"
-	local DEV_NET="192.168.1.0"
-	local DEV_NETMASK="255.255.255.0"
-	local DEV_GW="192.168.1.1"
-	local DEV_DNS1="208.67.222.222"
-	local DEV_DNS2="208.67.220.220"
+##local 
+DEV_IP="192.168.1.2"
+##local 
+DEV_NET="192.168.1.0"
+##local 
+DEV_NETMASK="255.255.255.0"
+##local 
+DEV_GW="192.168.1.1"
+##local 
+DEV_DNS1="208.67.222.222"
+##local 
+DEV_DNS2="208.67.220.220"
 
-	local DEVNAME=$1
+##local 
+DEVNAME=$1
 
 	exec 3>&1	
 	eval "${DIALOG}  --clear --form 'Set network for device: ${DEVNAME}'" \
@@ -250,216 +429,232 @@ function config_ethernet_static(){
 	
 	## Configure IP
 	
-	ip link set ${DEVNAME} down
-	ip link set ${DEVNAME} up
-	ip address flush dev ${DEVNAME}
-	ip address add ${DEV_IP}/${DEV_NETMASK} dev ${DEVNAME}
+	ip link set "${DEVNAME}" down
+	ip link set "${DEVNAME}" up
+	ip address flush dev "${DEVNAME}"
+	ip address add "${DEV_IP}/${DEV_NETMASK}" dev "${DEVNAME}"
 	
 	## Configure GW
-	ip route flush dev ${DEVNAME}
-	ip route add ${DEV_NET}/${DEV_NETMASK} dev ${DEVNAME}
-	ip route add default via ${DEV_GW}
+	ip route flush dev "${DEVNAME}"
+	ip route add "${DEV_NET}/${DEV_NETMASK}" dev "${DEVNAME}"
+	ip route add default via "${DEV_GW}"
 	
 	## Configure DNS
 	mv /etc/resolv.conf /etc/resolv.conf.bak
-	if [ -n ${DEV_DNS1} ]; then
+	if [ -n "${DEV_DNS1}" ]; then
 		echo "nameserver ${DEV_DNS1}" >> /etc/resolv.conf
 	fi
-	if [ -n ${DEV_DNS2} ]; then
+	if [ -n "${DEV_DNS2}" ]; then
 		echo "nameserver ${DEV_DNS2}" >> /etc/resolv.conf
 	fi
-	show_device_conf ${DEVNAME}
+	show_device_conf "${DEVNAME}"
 }
 
-function config_ethernet_dhcp(){
+##function 
+config_ethernet_dhcp(){
 
-	local DEVNAME=$1
+##local 
+DEVNAME=$1
 
-	eval "${DIALOG}  --infobox 'Running \"dhclient ${DEVNAME}\"' ${INFO_HEIGHT} ${INFO_WIDTH}"
-	dhclient -r ${DEVNAME}
-	dhclient ${DEVNAME}
+	eval "${DIALOG}  --msgbox 'Running \"dhclient ${DEVNAME}\"' ${INFO_HEIGHT} ${INFO_WIDTH}"
+	dhclient -r ${DEVNAME} 
+	dhclient ${DEVNAME} 
 	show_device_conf ${DEVNAME}
 }
 
 
-function config_ethernet(){
+##function 
+config_ethernet(){
 
-	local DEVNAME=$1
-	
-	while [ 1 -eq 1 ]; do
-		eval "${DIALOG}  --clear --cancel-label 'Up' \
+##local 
+    DEVNAME=$1
+	  
+    while true; do
+		    eval "${DIALOG}  --clear --cancel-label 'Up' \
 		--menu 'Configuring ${DEVNAME}' ${INFO_HEIGHT} ${INFO_WIDTH} 4 \
 		'DHCP' ''\
-		'Static' '' 2>${TMPFILE}"
-		if [ $? -eq 1 ]; then
-			return
-		fi
-		ACTION=`<${TMPFILE}`
-		case ${ACTION} in
-			"Static")
-				config_ethernet_static ${DEVNAME}
-				;;
-			"DHCP")
-				config_ethernet_dhcp ${DEVNAME}
-				;;
-		esac
-	done
-
+		'Static' ''" 2>${TMPFILE}
+		    if [ $? -eq 1 ]; then
+			      return
+		    fi
+		    ACTION=$(cat ${TMPFILE})
+		    case ${ACTION} in
+			      "Static")
+				        config_ethernet_static ${DEVNAME}
+				        ;;
+			      "DHCP")
+				        config_ethernet_dhcp ${DEVNAME}
+				        ;;
+		    esac
+	  done
+    
 }
 
-function wifi_essid_from_mac(){
+##function 
+wifi_essid_from_mac(){
 
-	local DEVNAME=$1
-	local W_MAC=$2
-	
-	W_ESSID=`wpa_cli -i ${DEVNAME} scan_results | grep -E "^${W_MAC}" | \
-       sed -r -e 's/\t/\|/g' | cut -d "|" -f 5`
+    ##local 
+    DEVNAME=$1
+    ##local 
+    W_MAC=$2
+	  
+    W_ESSID=$(wpa_cli -i "${DEVNAME}" scan_results | grep -E "^${W_MAC}" | \
+       sed -r -e 's/\t/\|/g' | cut -d "|" -f 5)
 
-	log "${FUNCNAME[0]}" "Recovered ESSID: ${W_ESSID}"
+	log "wifi_essid_from_mac" "Recovered ESSID: ${W_ESSID}"
 }
 
-function wifi_flags_from_mac(){
-	local DEVNAME=$1
-	local W_MAC=$2
-
-	W_FLAGS=`wpa_cli -i ${DEVNAME} scan_results | grep -E "^${W_MAC}" | \
-       sed -r -e 's/\t/\|/g' | cut -d "|" -f 4`
-	log "wifi_essid_from_mac" "Recovered W_FLAGS: ${W_FLAGS}"
-
+##function 
+wifi_flags_from_mac(){
+##local 
+    DEVNAME=$1
+##local 
+    W_MAC=$2
+
+    W_FLAGS=$(wpa_cli -i "${DEVNAME}" scan_results | grep -E "^${W_MAC}" | \
+       sed -r -e 's/\t/\|/g' | cut -d "|" -f 4)
+	  log "wifi_essid_from_mac" "Recovered W_FLAGS: ${W_FLAGS}"
+    
 }
 
 
-function wifi_network_list(){
-
-	local DEVNAME=$1
-	wpa_cli -i ${DEVNAME} list_networks | tail -n +2 | sed -r -e 's/\t/\|/g' > ${TMPFILE}
-
-	NETLIST=""
-	LAST_IFS=$IFS
-	IFS="|"
-	while read NETNUM NETESSID NETBSSID NETFLAGS; do
-		IS_DIS=`echo ${NETFLAGS} | sed -r -e 's/\[//g;s/\]//g' | grep -i disabled | wc -l`
-		if [ ${IS_DIS} -eq 1 ]; then
-		   STATUS="(DIS)"
-		else
-		   STATUS="(ENAB)"
-		fi
-		IS_CUR=`echo ${NETFLAGS} | sed -r -e 's/\[//g;s/\]//g' | grep -i current | wc -l`
-		if [ ${IS_CUR} -eq 1 ]; then
-			STATUS="${STATUS}(CUR)"
-		fi
-
-		
-		NETLIST="${NETLIST} ${NETNUM} \"${NETESSID}-${STATUS}\""
-	done < ${TMPFILE}
-	IFS=${LAST_IFS}
-
-	log "_self" "NETLIST: ${NETLIST}"
+##function 
+wifi_network_list(){
+
+##local 
+    DEVNAME=$1
+	  wpa_cli -i ${DEVNAME} list_networks | tail -n +2 | sed -r -e 's/\t/\|/g' > ${TMPFILE}
+    
+	  NETLIST=""
+	  LAST_IFS=$IFS
+	  IFS="|"
+	  while read NETNUM NETESSID NETBSSID NETFLAGS; do
+		    IS_DIS=$(echo ${NETFLAGS} | sed -r -e 's/\[//g;s/\]//g' | grep -c -i disabled )
+		    if [ ${IS_DIS} -eq 1 ]; then
+		        STATUS="(DIS)"
+		    else
+		        STATUS="(ENAB)"
+		    fi
+		    IS_CUR=$(echo ${NETFLAGS} | sed -r -e 's/\[//g;s/\]//g' | grep -c -i current )
+		    if [ ${IS_CUR} -eq 1 ]; then
+			      STATUS="${STATUS}(CUR)"
+		    fi
+        
+		    
+		    NETLIST="${NETLIST} ${NETNUM} \"${NETESSID}-${STATUS}\""
+	  done < ${TMPFILE}
+	  IFS=${LAST_IFS}
+    
+	  log "wifi_network_list" "NETLIST: ${NETLIST}"
 }
 
 
 ##
 ## Manage the authentication for a given wifi ESSID
 ##
-function wifi_authenticate(){
+##function 
+wifi_authenticate(){
 	
-	local DEVNAME=$1
-	local W_MAC=$2
-
-
-	log "${FUNCNAME[0]}" "configuring ${DEVNAME} on ${W_MAC}"
-	## This will set the variable W_ESSID appropriately
-	wifi_essid_from_mac ${DEVNAME} ${W_MAC}
-	
-	## This will set the variable W_FLAGS appropriately
-	wifi_flags_from_mac ${DEVNAME} ${W_MAC}
-
-	
-	log "${FUNCNAME[0]}" "configuring essid: ${W_ESSID} on device: ${DEVNAME}"
-	log "${FUNCNAME[0]}" "W_FLAGS: ${W_FLAGS}"
-
-	
-	NET_EXISTS=`wpa_cli -i ${DEVNAME} list_networks | tail -n +2 | sed -r -e 's/\t/\|/g' \
-      | cut -d "|" -f 2 | grep "${W_ESSID}$" | wc -l`
-	if [ ${NET_EXISTS} -ne 0 ]; then
-		NET_NUM=`wpa_cli -i ${DEVNAME} list_networks | tail -n +2 | sed -r -e 's/\t/\|/g' \
-      | cut -d "|" -f 1,2 | grep "${W_ESSID}$" | cut -d "|" -f 1`
-		wpa_cli -i ${DEVNAME} remove_network ${NET_NUM} > ${TMPFILE}
-		STATUS=`<${TMPFILE}`
-		if [ ${STATUS} != "OK" ]; then
-			eval "${DIALOG}  --msgbox 'Error while removing existing network:\n$essid: {W_ESSID}'"
-			${INFO_HEIGHT} ${INFO_WIDTH}
-			return
-		fi
-	fi
-
-	HAS_WPA=`echo "${W_FLAGS}" | grep -E "WPA.*-PSK" | wc -l`
-
-	log "${FUNCNAME[0]}" "HAS_WPA: \"${HAS_WPA}\"" 
-	
-	### This section will configure WPA-PSK or WPA2-PSK
-	if [ ${HAS_WPA} != "0" ]; then
-		PSK=""
-		PSK_LENGTH=${#PSK}
-		while [ ${PSK_LENGTH} -le 7 ]; do
-			eval "${DIALOG}  --insecure --inputbox 'Please insert WPA PSK\n(8 characters)' \
-				   ${INFO_HEIGHT} ${INFO_WIDTH} 2> ${TMPFILE}"
-			if [ $? -eq 1 ]; then
-				eval "${DIALOG}  --clear --msgbox 'Network configuration aborted!!!' \
+##local 
+    DEVNAME=$1
+##local 
+    W_MAC=$2
+
+
+    log "wifi_authenticate" "configuring ${DEVNAME} on ${W_MAC}"
+	  ## This will set the variable W_ESSID appropriately
+	  wifi_essid_from_mac ${DEVNAME} ${W_MAC}
+	  
+	  ## This will set the variable W_FLAGS appropriately
+	  wifi_flags_from_mac ${DEVNAME} ${W_MAC}
+    
+	  
+	  log "wifi_authenticate" "configuring essid: ${W_ESSID} on device: ${DEVNAME}"
+	  log "wifi_authenticate" "W_FLAGS: ${W_FLAGS}"
+    
+	  
+	  NET_EXISTS=$(wpa_cli -i ${DEVNAME} list_networks | tail -n +2 | sed -r -e 's/\t/\|/g' \
+                        | cut -d "|" -f 2 | grep -c "${W_ESSID}$" )
+	  if [ ${NET_EXISTS} != 0 ]; then
+		    NET_NUM=$(wpa_cli -i ${DEVNAME} list_networks | tail -n +2 | sed -r -e 's/\t/\|/g' \
+                         | cut -d "|" -f 1,2 | grep "${W_ESSID}$" | cut -d "|" -f 1)
+		    wpa_cli -i ${DEVNAME} remove_network ${NET_NUM} > ${TMPFILE}
+		    STATUS=$(cat ${TMPFILE})
+		    if [ "${STATUS}" != "OK" ]; then
+			      eval "${DIALOG}  --msgbox 'Error while removing existing network:\n$essid: {W_ESSID}'"
+			      ${INFO_HEIGHT} ${INFO_WIDTH}
+			      return
+		    fi
+	  fi
+
+    
+	  HAS_WPA=$(echo "${W_FLAGS}" | grep -E -c "WPA.*-PSK" )
+    
+	  log "wifi_authenticate" "HAS_WPA: \"${HAS_WPA}\"" 
+	  
+	  ### This section will configure WPA-PSK or WPA2-PSK
+	  if [ "${HAS_WPA}" != "0" ]; then
+		    PSK=""
+		    PSK_LENGTH=${#PSK}
+		    while [ ${PSK_LENGTH} -le 7 ]; do
+			      eval "${DIALOG}  --insecure --inputbox 'Please insert WPA PSK\n(8 characters)' \
+				   ${INFO_HEIGHT} ${INFO_WIDTH}"  2> ${TMPFILE}
+			      if [ $? -eq 1 ]; then
+				        eval "${DIALOG}  --clear --msgbox 'Network configuration aborted!!!' \
 					   ${INFO_HEIGHT} ${INFO_WIDTH}"
-				return 1
-			fi
-			PSK=`<${TMPFILE}`
-			PSK_LENGTH=${#PSK}
-		done
-			
-		
-		NET_NUM=`wpa_cli -i ${DEVNAME} add_network | tail -1`
-
-		log "${FUNCNAME[0]}" `wpa_cli -i ${DEVNAME} set_network ${NET_NUM} ssid "\"${W_ESSID}\""`
-		log "${FUNCNAME[0]}" `wpa_cli -i ${DEVNAME} set_network ${NET_NUM} psk \"${PSK}\"`
-		## remove the password from tmpfile
-		echo "" > ${TMPFILE}
-		eval "${DIALOG}  --clear --defaultno --yesno \
+				        return 1
+			      fi
+			      PSK=$(cat ${TMPFILE})
+			      PSK_LENGTH=${#PSK}
+		    done
+			  
+		    
+		    NET_NUM=$(wpa_cli -i ${DEVNAME} add_network | tail -1)
+        
+		    wpa_cli -i ${DEVNAME} set_network ${NET_NUM} ssid "\"${W_ESSID}\""
+		    wpa_cli -i ${DEVNAME} set_network ${NET_NUM} psk \"${PSK}\"
+		    ## remove the password from tmpfile
+		    echo "" > ${TMPFILE}
+		    eval "${DIALOG}  --clear --defaultno --yesno \
 			   'Network \"${W_ESSID}\" added\nSave configuration file?' \
-			   ${INFO_HEIGHT} ${INFO_WIDTH} 2> ${TMPFILE}"
-		if [ $? -eq 0 ]; then
-			## Save the config file
-			wifi_save_file ${DEVNAME}
-		fi
-		
-		eval "${DIALOG}  --msgbox 'Network added successfully' ${INFO_HEIGHT} ${INFO_WIDTH}"
-		return 0
-	fi
-	
-	HAS_ESS=`echo "${W_FLAGS}" | grep -E "ESS" | wc -l`
-
-	log "_self" "HAS_ESS: \"${HAS_ESS}\""
-	
-	if [ ${HAS_ESS} != "0" ]; then
-		NET_NUM=`wpa_cli -i ${DEVNAME} add_network | tail -1`
-
-		log "_self" "NET_NUM: ${NET_NUM}"
-		log "_self" `wpa_cli -i ${DEVNAME} set_network ${NET_NUM} ssid "\"${W_ESSID}\""`
-		log "_self" `wpa_cli -i ${DEVNAME} set_network ${NET_NUM} key_mgmt NONE`
-		eval "${DIALOG}  --clear --defaultno --yesno \
+			   ${INFO_HEIGHT} ${INFO_WIDTH} " 2> ${TMPFILE}
+		    if [ $? -eq 0 ]; then
+			      ## Save the config file
+			      wifi_save_file ${DEVNAME}
+		    fi
+		    
+		    eval "${DIALOG}  --msgbox 'Network added successfully' ${INFO_HEIGHT} ${INFO_WIDTH}"
+		    return 0
+	  fi
+	  
+	  HAS_ESS=$(echo "${W_FLAGS}" | grep -E -c "ESS" )
+    
+	  log "wifi_authenticate" "HAS_ESS: \"${HAS_ESS}\""
+	  
+	  if [ "${HAS_ESS}" != "0" ]; then
+		    NET_NUM=$(wpa_cli -i ${DEVNAME} add_network | tail -1)
+        
+		    log "wifi_authenticate" "NET_NUM: ${NET_NUM}"
+		    wpa_cli -i ${DEVNAME} set_network ${NET_NUM} ssid "\"${W_ESSID}\""
+		    wpa_cli -i ${DEVNAME} set_network ${NET_NUM} key_mgmt NONE
+		    eval "${DIALOG}  --clear --defaultno --yesno \
 			   'Network \"${W_ESSID}\" added\nSave configuration file?' \
-			   ${INFO_HEIGHT} ${INFO_WIDTH} 2> ${TMPFILE}"
-		if [ $? -eq 0 ]; then
-			## Save the config file
-			wifi_save_file ${DEVNAME}
-		fi
-		
-		return 0
-	else
-		eval " ${DIALOG}  --msgbox 'Error occurred!!!!' ${INFO_HEIGHT} ${INFO_WIDTH}"
-		return 0
-	fi
-	
-	## No available authentication methods....
-
-	eval "${DIALOG}  --msgbox 'No supported authentication method for ${W_ESSID}'"
-	return 1
+			   ${INFO_HEIGHT} ${INFO_WIDTH} " 2> ${TMPFILE}
+		    if [ $? -eq 0 ]; then
+			      ## Save the config file
+			      wifi_save_file ${DEVNAME}
+		    fi
+		    
+		    return 0
+	  else
+		    eval " ${DIALOG}  --msgbox 'Error occurred!!!!' ${INFO_HEIGHT} ${INFO_WIDTH}"
+		    return 0
+	  fi
+	  
+	  ## No available authentication methods....
+    
+	  eval "${DIALOG}  --msgbox 'No supported authentication method for ${W_ESSID}'"
+	  return 1
 }
 
 
@@ -469,9 +664,11 @@ function wifi_authenticate(){
 ## Configure a new connection from a list of available wi-fi networks
 ##
 
-function wifi_add(){
+##function 
+wifi_add(){
 
-	local DEVNAME=$1
+##local 
+DEVNAME=$1
 	
 	wpa_cli -i ${DEVNAME} scan
 	eval "${DIALOG}  --timeout 4 --msgbox 'Scanning for networks...' \
@@ -480,20 +677,20 @@ function wifi_add(){
 		sed -r -e 's/\t/|/g' |\
 		sort -t "|" -r -n -k 3 > ${TMPFILE}
 
-	wifinets=()
+	wifinets=""
 	LAST_IFS=$IFS
 	IFS="|"
 	while read W_MAC W_FREQ W_STRNGT W_FLAGS W_ESSID; do
 
-		log "_self" "W_ESSID: \"${W_ESSID}\""
-		wifinets+=(${W_MAC} "${W_ESSID} -- ${W_FLAGS}")
+		log "wifi_add" "W_ESSID: \"${W_ESSID}\""
+		wifinets="${wifinets} ${W_MAC} \"${W_ESSID} -- ${W_FLAGS}\""
 	done < ${TMPFILE}
 	IFS=${LAST_IFS}
 	
 
-	log "$_self" "Wifi nets: \n${wifinets}\n==="
-	dialog  --menu 'Select a network' ${WINDOW_HEIGHT} ${WINDOW_WIDTH} 10 \
-		   "${wifinets[@]}" 2> ${TMPFILE}
+	log "wifi_add" "Wifi nets: \n${wifinets}\n==="
+	eval "dialog  --menu 'Select a network' ${WINDOW_HEIGHT} ${WINDOW_WIDTH} 10 \
+		   ${wifinets} " 2> ${TMPFILE}
 	if [ $? -eq 1 ]; then
 		return
 	fi
@@ -502,20 +699,22 @@ function wifi_add(){
 	
 
 	wifi_authenticate ${DEVNAME} ${W_MAC}
-	if [ $? -ne 0 ]; then
+	if [ $? != "0" ]; then
 		eval "${DIALOG}  --msgbox 'Error while configuring ${DEVNAME}' "
 	fi
 	return $?
 }
 
 
-function wifi_save_file(){
+##function 
+wifi_save_file(){
 
-	local DEVNAME=$1
+##local 
+DEVNAME=$1
 	
 	wpa_cli -i ${DEVNAME} save_config | tail -1 > ${TMPFILE}
-	SAVE_STATUS=`<${TMPFILE}`
-	if [ ${SAVE_STATUS} == "OK" ]; then
+	SAVE_STATUS=$(cat ${TMPFILE})
+	if [ "${SAVE_STATUS}" = "OK" ]; then
 		eval "${DIALOG}  --msgbox 'Current configuration dumped to file ${WPA_FILE}' \
 			   ${INFO_HEIGHT} ${INFO_WIDTH}"
 	else
@@ -524,71 +723,73 @@ function wifi_save_file(){
 	fi
 }
 
-function wifi_remove(){
-
-	local DEVNAME=$1
-
-	wifi_network_list ${DEVNAME}
-
-	eval "${DIALOG} --menu 'Select network to remove' \
-           ${WINDOW_HEIGHT} ${WINDOW_WIDTH} 10 ${NETLIST} \
-		   2> ${TMPFILE}"
-	
-	if [ $? -eq 0 ]; then
-		## a network has been selected
-		NETNUM=`<${TMPFILE}`
-		WPA_STATUS=`wpa_cli -i ${DEVNAME} remove_network ${NETNUM} | tail -1 `
-		if [ ${WPA_STATUS} == "OK" ]; then
-			eval "${DIALOG}  --clear --defaultno --yesno \
+##function 
+wifi_remove(){
+
+##local 
+    DEVNAME=$1
+    
+	  wifi_network_list ${DEVNAME}
+    
+	  eval "${DIALOG} --menu 'Select network to remove' \
+           ${WINDOW_HEIGHT} ${WINDOW_WIDTH} 10 ${NETLIST}" \
+		   2> ${TMPFILE}
+	  
+	  if [ $? -eq 0 ]; then
+		    ## a network has been selected
+		    NETNUM=$(cat ${TMPFILE})
+		    WPA_STATUS=$(wpa_cli -i ${DEVNAME} remove_network ${NETNUM} | tail -1 )
+		    if [ "${WPA_STATUS}" = "OK" ]; then
+			      eval "${DIALOG}  --clear --defaultno --yesno \
 				   'Network ${NETNUM} removed\nSave configuration file?' \
-				   ${INFO_HEIGHT} ${INFO_WIDTH} 2> ${TMPFILE}"
-			if [ $? -eq 0 ]; then
-				## Save the config file
-				wifi_save_file ${DEVNAME}
-			fi
-			
-			return
-		else
-			eval "${DIALOG}  --clear --msgbox 'Network ${NETNUM} NOT removed' \
+				   ${INFO_HEIGHT} ${INFO_WIDTH}" 2> ${TMPFILE}
+			      if [ $? -eq 0 ]; then
+				        ## Save the config file
+				        wifi_save_file ${DEVNAME}
+			      fi
+			      
+			      return
+		    else
+			      eval "${DIALOG}  --clear --msgbox 'Network ${NETNUM} NOT removed' \
 				   ${INFO_HEIGHT} ${INFO_WIDTH}"
-			return
-		fi
-	else
-		eval "${DIALOG}  --clear --msgbox 'No network removed!!!' \
+			      return
+		    fi
+	  else
+		    eval "${DIALOG}  --clear --msgbox 'No network removed!!!' \
 			   ${INFO_HEIGHT} ${INFO_WIDTH}"
-		return
-	fi
-	
+		    return
+	  fi
+	  
 }
 
 
-function wifi_restart_wpa(){
+##function 
+wifi_restart_wpa(){
 
-	local DEVNAME=$1
-	local WPA_FILE=$2
+##local 
+    DEVNAME=$1
+##local 
+    WPA_FILE=$2
 	
-	WPA_PID=`ps ax | grep wpa_supplicant | grep " -i ${DEVNAME}" | 
-sed -r -e 's/^\ +//g' | cut -d " " -f 1`
-
-	log "${FUNCNAME[0]}" "WPA_PID: ${WPA_PID}"
-	kill -n 9 ${WPA_PID}
-	
-	if [ $? -ne 0 ]; then
-	   eval "${DIALOG}  --clear --msgbox 'Error killing wpa_supplicant' \
-			  ${INFO_HEIGHT} ${INFO_WIDTH}"
-	fi
-
-	wpa_supplicant -B -i ${DEVNAME} -c ${WPA_FILE} -P${WPA_PIDFILE}
-	WPA_PID=`ps ax | grep wpa_supplicant | grep " -i ${DEVNAME}" | cut -d " " -f 1 `
-	WPA_PID_SAVED=`<${WPA_PIDFILE}`
-	if [ [ -n ${WPA_PID} ] || [ ${WPA_PID} != ${WPA_PID_SAVED} ] ]; then
-		eval "${DIALOG}  --clear --msgbox 'Error restarting wpa_supplicant' \
+    WPA_PID=$(ps ax | grep wpa_supplicant | grep " -i ${DEVNAME}" | 
+sed -r -e 's/^\ +//g' | cut -d " " -f 1)
+    
+	  log "wifi_restart_wpa" "WPA_PID: ${WPA_PID}"
+	  kill -9 ${WPA_PID}
+    
+	  wpa_supplicant -B -i ${DEVNAME} -c ${WPA_FILE} -P${WPA_PIDFILE} 2>/dev/null
+	  WPA_PID=$(ps ax | grep wpa_supplicant | grep " -i ${DEVNAME}" | \
+                     sed -r -e 's/^\ +//g' | cut -d " " -f 1 )
+	  WPA_PID_SAVED=$(cat ${WPA_PIDFILE})
+    log "wifi_restart_wpa" "WPA_PID: ${WPA_PID} WPA_PID_SAVED: ${WPA_PID_SAVED}"
+	  if [ -n "${WPA_PID}" ] &&  [ "${WPA_PID}" != "${WPA_PID_SAVED}" ]; then
+		    eval "${DIALOG}  --clear --msgbox 'Error restarting wpa_supplicant' \
 			   ${INFO_HEIGHT} ${INFO_WIDTH}"
-	else
-		eval "${DIALOG}  --clear --msgbox 'wpa_supplicant restarted successfully' \
+	  else
+		    eval "${DIALOG}  --clear --msgbox 'wpa_supplicant restarted successfully' \
 			   ${INFO_HEIGHT} ${INFO_WIDTH}"
-	fi
-
+	  fi
+    
 }
 
 
@@ -598,117 +799,125 @@ sed -r -e 's/^\ +//g' | cut -d " " -f 1`
 ## one the used has clicked on
 ##
 
-function wifi_enable(){
-
-	local DEVNAME=$1
-
-	wifi_network_list ${DEVNAME}
-
-	eval "${DIALOG} --menu 'Select configured network' \
-		   ${WINDOW_HEIGHT} ${WINDOW_WIDTH} 10 ${NETLIST} \
-		   2> ${TMPFILE}"
-	
-	if [ $? -eq 0 ]; then
-		## a network has been selected
-		NETNUM=`<${TMPFILE}`
-		WPA_STATUS=`wpa_cli -i ${DEVNAME} enable ${NETNUM} | tail -1 `
-		if [ ${WPA_STATUS} == "OK" ]; then
-			eval "${DIALOG}  --clear --msgbox 'Network ${NETNUM} enabled' \
+##function 
+wifi_enable(){
+
+##local 
+    DEVNAME=$1
+    
+	  wifi_network_list ${DEVNAME}
+    
+	  eval "${DIALOG} --menu 'Select configured network' \
+		   ${WINDOW_HEIGHT} ${WINDOW_WIDTH} 10 ${NETLIST}" \
+		   2> ${TMPFILE}
+	  
+	  if [ $? -eq 0 ]; then
+		    ## a network has been selected
+		    NETNUM=$(cat ${TMPFILE})
+		    WPA_STATUS=$(wpa_cli -i ${DEVNAME} enable ${NETNUM} | tail -1 )
+		    if [ "${WPA_STATUS}" = "OK" ]; then
+			      eval "${DIALOG}  --clear --msgbox 'Network ${NETNUM} enabled' \
 				   ${INFO_HEIGHT} ${INFO_WIDTH}"
-			config_ethernet ${DEVNAME}
-			return
-		else
-			eval "${DIALOG}  --clear --msgbox 'Network ${NETNUM} NOT enabled' \
+			      config_ethernet ${DEVNAME}
+			      return
+		    else
+			      eval "${DIALOG}  --clear --msgbox 'Network ${NETNUM} NOT enabled' \
 				   ${INFO_HEIGHT} ${INFO_WIDTH}"
-			return
-		fi
-	else
-		eval "${DIALOG}  --clear --msgbox 'No network enabled!!!' \
+			      return
+		    fi
+	  else
+		    eval "${DIALOG}  --clear --msgbox 'No network enabled!!!' \
 			   ${INFO_HEIGHT} ${INFO_WIDTH}"
-		return
-	fi
+		    return
+	  fi
 }
 
 
-function wifi_disable(){
-
-	local DEVNAME=$1
-	wifi_network_list ${DEVNAME}
-	eval "${DIALOG}  --menu 'Select configured network' \
-          ${WINDOW_HEIGHT} ${WINDOW_WIDTH} 10 ${NETLIST} \
-		   2> ${TMPFILE}"
-	
-	if [ $? -eq 0 ]; then
-		## a network has been selected
-		NETNUM=`<${TMPFILE}`
-		WPA_STATUS=`wpa_cli -i ${DEVNAME} disable ${NETNUM} | tail -1 `
-		if [ ${WPA_STATUS} == "OK" ]; then
-			eval "${DIALOG}  --clear --msgbox 'Network ${NETNUM} disabled' \
+##function 
+wifi_disable(){
+
+##local 
+    DEVNAME=$1
+	  wifi_network_list ${DEVNAME}
+	  eval "${DIALOG}  --menu 'Select configured network' \
+          ${WINDOW_HEIGHT} ${WINDOW_WIDTH} 10 ${NETLIST}" \
+		   2> ${TMPFILE}
+	  
+	  if [ $? -eq 0 ]; then
+		    ## a network has been selected
+		    NETNUM=$(cat ${TMPFILE})
+		    WPA_STATUS=$(wpa_cli -i ${DEVNAME} disable ${NETNUM} | tail -1 )
+		    if [ "${WPA_STATUS}" = "OK" ]; then
+			      eval "${DIALOG}  --clear --msgbox 'Network ${NETNUM} disabled' \
 				   ${INFO_HEIGHT} ${INFO_WIDTH}"
-			return
-		else
-			eval "${DIALOG}  --clear --msgbox 'Network ${NETNUM} NOT disabled' \
+			      return
+		    else
+			      eval "${DIALOG}  --clear --msgbox 'Network ${NETNUM} NOT disabled' \
 				   ${INFO_HEIGHT} ${INFO_WIDTH}"
-			return
-		fi
-	else
-		eval "${DIALOG}  --clear --msgbox 'No network disabled!!!' \
+			      return
+		    fi
+	  else
+		    eval "${DIALOG}  --clear --msgbox 'No network disabled!!!' \
 			   ${INFO_HEIGHT} ${INFO_WIDTH}"
-		return
-	fi
+		    return
+	  fi
 }
 
 
 
-function wifi_load_file(){
-	
-	local DEVNAME=$1
+##function 
+wifi_load_file(){
 	
-	eval "${DIALOG}  --fselect ${WPA_FILE} ${WINDOW_HEIGHT} ${WINDOW_WIDTH} \
-			   2>${TMPFILE}"
-	
-	if [ $? -eq 0 ]; then
-		SEL_FILE=`<${TMPFILE}`
-		while [ -d ${SEL_FILE} ]; do
-			eval "${DIALOG}  --fselect ${SEL_FILE} ${WINDOW_HEIGHT} ${WINDOW_WIDTH} \
-					   2>${TMPFILE}"
-			if [ $? -eq 0 ]; then
-				SEL_FILE=`<${TMPFILE}`
-			else
-				eval "${DIALOG}  --clear --infobox 'WPA_FILE was not modified' \
+##local 
+    DEVNAME=$1
+	  
+	  eval "${DIALOG}  --fselect ${WPA_FILE} ${WINDOW_HEIGHT} ${WINDOW_WIDTH}" \
+			   2>${TMPFILE}
+	  
+	  if [ $? -eq 0 ]; then
+		    SEL_FILE=$(cat ${TMPFILE})
+		    while [ -d "${SEL_FILE}" ]; do
+			      eval "${DIALOG}  --fselect ${SEL_FILE} ${WINDOW_HEIGHT} ${WINDOW_WIDTH}" \
+					   2>${TMPFILE}
+			      if [ $? -eq 0 ]; then
+				        SEL_FILE=$(cat ${TMPFILE})
+			      else
+				        eval "${DIALOG}  --clear --msgbox 'WPA_FILE was not modified' \
 						   ${INFO_HEIGHT} ${INFO_WIDTH}"
-				return
-			fi
-		done
-		
-		if [ -f ${SEL_FILE} ]; then
-			WPA_FILE=${SEL_FILE}
-			eval "${DIALOG}  --clear --defaultno --yesno \
+				        return
+			      fi
+		    done
+		    
+		    if [ -f "${SEL_FILE}" ]; then
+			      WPA_FILE=${SEL_FILE}
+			      eval "${DIALOG}  --clear --defaultno --yesno \
 					   'WPA_FILE changed to ${WPA_FILE}\nRestart wpa_supplicant?' \
 					   ${INFO_HEIGHT} ${INFO_WIDTH}"
-			if [ $? -eq 0 ]; then
-				wifi_restart_wpa ${DEVNAME} ${WPA_FILE}
-			fi
-		else
-			eval "${DIALOG}  --clear --infobox 'Invalid file name!\n WPA_FILE *not* changed' \
+			      if [ $? -eq 0 ]; then
+				        wifi_restart_wpa ${DEVNAME} ${WPA_FILE}
+			      fi
+		    else
+			      eval "${DIALOG}  --clear --msgbox 'Invalid file name!\n WPA_FILE *not* changed' \
 					  ${WINDOW_HEIGHT} ${WINDOW_WIDTH}"
-			return 
-		fi
-	else
-		eval "${DIALOG}  --clear --infobox 'WPA_FILE was not modified' \
+			      return 
+		    fi
+	  else
+		    eval "${DIALOG}  --clear --msgbox 'WPA_FILE was not modified' \
 				   ${INFO_HEIGHT} ${INFO_WIDTH}"
-	fi
-	
+	  fi
+	  
 }
 
 
  
-function config_wifi(){
-
-	local DEVNAME=$1
-	
-	while [ 1 -eq 1 ]; do
-		eval "${DIALOG}  --clear --cancel-label 'Up' \
+##function 
+config_wifi(){
+
+##local 
+    DEVNAME=$1
+	  
+    while true; do
+		    eval "${DIALOG}  --clear --cancel-label 'Up' \
 			   --menu 'Configuring ${DEVNAME}\n(Current file: ${WPA_FILE})' \
 			   ${WINDOW_HEIGHT} ${WINDOW_WIDTH} 12 \
 			   'Restart' 'Restart wpa_supplicant' \
@@ -720,49 +929,49 @@ function config_wifi(){
 			   'Edit' 'Edit current configuration file' \
 			   'Save' 'Save configuration to file'\
 			   'Load' 'Load configuration from file'\
-			   'New' 'Create new configuration file'\
-		2>${TMPFILE}"
-		if [ $? -eq 1 ]; then
-			return
-		fi
-		ACTION=`<${TMPFILE}`
-		case ${ACTION} in
-			"Restart")
-				## Restart wpa_supplicant
-				wifi_restart_wpa ${DEVNAME} ${WPA_FILE}
-				;;
-			"Enable")
-				wifi_enable ${DEVNAME}
-				;;
-			"Disable")
-				wifi_disable ${DEVNAME}
-				;;
-			"Add")
-				wifi_add ${DEVNAME}
-				;;
-			"Remove")
-				wifi_remove ${DEVNAME}
-				;;
-			"Show")
-				eval "${DIALOG}  --title 'Current file: ${WPA_FILE}' \
+			   'New' 'Create new configuration file' " \
+             2>${TMPFILE}
+        
+		    if [ $? = "1" ]; then
+			      return
+		    fi
+		    ACTION=$(cat ${TMPFILE})
+		    case ${ACTION} in
+			      "Restart")
+				        ## Restart wpa_supplicant
+				        wifi_restart_wpa ${DEVNAME} ${WPA_FILE}
+				        ;;
+			      "Enable")
+				        wifi_enable ${DEVNAME}
+				        ;;
+			      "Disable")
+				        wifi_disable ${DEVNAME}
+				        ;;
+			      "Add")
+				        wifi_add ${DEVNAME}
+				        ;;
+			      "Remove")
+				        wifi_remove ${DEVNAME}
+				        ;;
+			      "Show")
+				        eval "${DIALOG}  --title 'Current file: ${WPA_FILE}' \
 					   --textbox ${WPA_FILE} ${WINDOW_HEIGHT} ${WINDOW_WIDTH}"
-				;;
-			"Edit")
-				edit_file ${WPA_FILE}
-				;;
-			"Save")
-				wifi_save_file ${DEVNAME}
-				;;
-			"Load")
-				wifi_load_file ${DEVNAME}
-				;;
-			"New")
-				eval "${DIALOG}  --msgbox 'Sorry!Not yet implemented!' \
-						  ${INFO_HEIGHT} ${INFO_WIDTH} 2>${TMPFILE}"
-				;;
-		esac
-	done
-
+				        ;;
+			      "Edit")
+				        edit_file ${WPA_FILE}
+				        ;;
+			      "Save")
+				        wifi_save_file ${DEVNAME}
+				        ;;
+			      "Load")
+				        wifi_load_file ${DEVNAME}
+				        ;;
+			      "New")
+                unimplemented "New"
+				        ;;
+		    esac
+	  done
+    
 }
 
 
@@ -771,149 +980,177 @@ function config_wifi(){
 ## (Re)-Configure a network device
 ##
 
-function configure_device(){
-
-	local DEVNAME=$1
-	
-	case ${DEVNAME} in
-		eth*)
-			config_ethernet ${DEVNAME}
-			;;
-		wlan*)
-			config_wifi ${DEVNAME}
-			;;
-		*)
-			eval "${DIALOG}  --clear --title 'ERROR' --msgbox \
-			'${DEVNAME}: Unsupported device type' \
-			${WINDOW_HEIGHT} ${WINDOW_WIDTH}"
-			;;
-	esac
-
+##function 
+configure_device(){
+
+##local 
+    DEVNAME=$1
+
+    ## Check if the network device is a wifi -- WEAK
+    IS_WIFI=$(iwconfig ${DEVNAME} 2>/dev/null | grep -c "IEEE 802.11")
+    
+	  case ${IS_WIFI} in
+		    0)
+			      config_ethernet ${DEVNAME}
+			      ;;
+		    *)
+			      config_wifi ${DEVNAME}
+			      ;;
+	  esac
+    
 
 }
 
 
-function set_device_up(){
+##function 
+set_device_up(){
 
-	local DEVNAME=$1
+##local 
+DEVNAME=$1
 	
 	ip link set ${DEVNAME} up 
 
 }
 
-function set_device_down(){
+##function 
+set_device_down(){
 
-	local DEVNAME=$1
+##local 
+DEVNAME=$1
 	
 	ip link set ${DEVNAME} down
 
 }
 
-function show_device_menu(){
+##function 
+show_device_menu(){
 	
-	local DEVNAME=$1
-	while [ 1 -eq 1 ]; do 	
-		eval "${DIALOG}  --clear --cancel-label 'Up' --menu 'Device: ${DEVNAME}' \
-			   ${WINDOW_HEIGHT} ${WINDOW_WIDTH} 8 \
-			   'View' 'View current configuration' \
-			   'Conf' 'Configure device' \
-		       'Start' 'Bring interface up' \
-			   'Stop' 'Put interface down' \
-			   'Restart' 'Restart interface' 2> ${TMPFILE}"
-		
-		if [ $? -eq 1 ]; then
-			return
-		fi
-		
-		DEV_ACTION=`<${TMPFILE}`
-		case ${DEV_ACTION} in
-			"View")
-				show_device_conf ${DEVNAME}
-				;;
-			"Conf")
-				configure_device ${DEVNAME}
-				;;
-			"Start")
-				set_device_up ${DEVNAME}
-				;;
-			"Stop") 
-				set_device_down ${DEVNAME}
-				;;
-			"Restart")
-				set_device_down ${DEVNAME}
-				set_device_up ${DEVNAME}
-				;;	
-			*)
-				;;
-	
-		esac
-	done 	
+##local 
+    DEVNAME=$1
+    
+    while true; do 	
+        DEV_STATUS=$(ip -o link | cut -d " " -f 2,9 | grep -E "^${DEVNAME}: " | cut -d " " -f 2)
+        log "show_device_menu" "DEVNAME: ${DEVNAME} DEV_STATUS: ${DEV_STATUS}"
+		    eval "${DIALOG}  --clear --cancel-label 'Up' --menu\
+             'Device: ${DEVNAME}\nStatus: ${DEV_STATUS}' \
+			       ${WINDOW_HEIGHT} ${WINDOW_WIDTH} 8 \
+			       'View' 'View current configuration' \
+			       'Conf' 'Configure device' \
+		         'Start' 'Bring interface up' \
+			       'Stop' 'Put interface down' \
+			       'Restart' 'Restart interface'" 2> ${TMPFILE}
+		    
+		    if [ $? -eq 1 ]; then
+			      return
+		    fi
+		    
+		    DEV_ACTION=$(cat ${TMPFILE})
+		    case ${DEV_ACTION} in
+			      "View")
+				        show_device_conf ${DEVNAME}
+				        ;;
+			      "Conf")
+				        configure_device ${DEVNAME}
+				        ;;
+			      "Start")
+				        set_device_up ${DEVNAME}
+				        ;;
+			      "Stop") 
+				        set_device_down ${DEVNAME}
+				        ;;
+			      "Restart")
+				        set_device_down ${DEVNAME}
+				        set_device_up ${DEVNAME}
+				        ;;	
+			      *)
+				        ;;
+	          
+		    esac
+	  done 	
 }
 
 ##
 ## Show all the available network devices
 ##
 
-function show_devs() {
-
-	DEVFILE=/proc/net/dev
-  	DEVICES=`ip link show | awk 'NR % 2 == 1' | cut -d ":" -f 2`
-
-	DEVICE_TAGS=""
-
-	for i in `echo $DEVICES`; do
-		if [ $i != "lo" ]; then
-			DEVICE_TAGS="${DEVICE_TAGS} $i $i" 
-		fi
-	done
-
- 	eval "${DIALOG}  --clear --cancel-label 'Up' \
+##function 
+show_devs() {
+
+  	DEVICES=$(ip link show | awk 'NR % 2 == 1' | cut -d ":" -f 2)
+    
+	  DEVICE_TAGS=""
+    
+	  for i in  $DEVICES; do
+		    if [ "$i" != "lo" ]; then
+			      DEVICE_TAGS="${DEVICE_TAGS} $i $i" 
+		    fi
+	  done
+    
+ 	  eval "${DIALOG}  --clear --cancel-label 'Up' \
 			   --menu 'Select Interface to configure' ${WINDOW_HEIGHT} ${WINDOW_WIDTH} 4 \
-			   ${DEVICE_TAGS} 2> ${TMPFILE}"
-	return $?
+			   ${DEVICE_TAGS}" 2> ${TMPFILE}
+	  return $?
 }
 
 
-function dev_config_menu(){
-
-	while [ 1 -eq 1 ]; do 
-		show_devs 
-		if [ $? -eq 1 ]; then
-			return
-		fi
-		DEVNAME=`<${TMPFILE}`
-		show_device_menu ${DEVNAME}			
-	done
+##function 
+dev_config_menu(){
+    
+	  while  true; do 
+		    show_devs 
+		    if [ $? -eq 1 ]; then
+			      return
+		    fi
+		    DEVNAME=$(cat ${TMPFILE})
+		    show_device_menu ${DEVNAME}			
+	  done
 }
 
-function show_info(){
+##function 
+show_info(){
 
 	cat <<EOF > ${TMPFILE}
 
-== setnet.sh 0.1 ==
+                      -+- setnet.sh ${VERSION} -+-
 
 setnet.sh is a simple state-less tool to manage and configure network
-interfaces. It is a shell wrapper around the functionalities of "ip",
-"dhclient", "wpa_cli", and can be used to configure network
-connections via Ethernet/Wi-Fi interfaces.
+interfaces. It is a shell wrapper around the functionalities of
+standard command-line tools, including "ip", "dhclient", "wpa_cli",
+etc., and can be used to configure network connections via
+Ethernet/Wi-Fi interfaces.
 
-Both Static and DHCP-based IP configuration is supported. 
+Both Static and DHCP-based IP configuration are supported. 
 
 At the moment, only WPA-PSK and open (no key) Wi-Fi connections are
 available. 
 
+For more information, please visit the webpage of the project:
+
+    http://kalos.mine.nu/setnet/
+
+Please report bugs at:
+
+    https://git.devuan.org/KatolaZ/setnet
+
 EOF
 	eval "${DIALOG}  --clear --cr-wrap --textbox ${TMPFILE} ${WINDOW_HEIGHT} ${WINDOW_WIDTH}"
 	return
 }
 
-function show_copyright(){
+##function 
+show_copyright(){
 
 	cat <<EOF > ${TMPFILE}
 
-== setnet.sh 0.1 ==
+                          -+- setnet.sh ${VERSION} -+-
+
+--------------------------------------------------------------------
+
+  Copyleft (C) Vincenzo "KatolaZ" Nicosia <katolaz@freaknet.org> 
+               2016, 2017
+
+--------------------------------------------------------------------
 
-(c) KatolaZ (katolaz@freaknet.org) -- 2016
 
 EOF
 	eval "${DIALOG}  --clear --cr-wrap --textbox ${TMPFILE} ${WINDOW_HEIGHT} ${WINDOW_WIDTH}"
@@ -921,11 +1158,12 @@ EOF
 }
 
 
-function show_license(){
+##function 
+show_license(){
 
 	cat <<EOF > ${TMPFILE}
 
-== setnet.sh 0.1 ==
+                       -+- setnet.sh ${VERSION} -+-
 
 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
@@ -940,11 +1178,12 @@ General Public License for more details.
 You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-----------------------------------------------------------------------
+--------------------------------------------------------------------
 
- (c) KatolaZ <katolaz@freaknet.org> -- 2016
+   Copyleft (C) Vincenzo "KatolaZ" Nicosia <katolaz@freaknet.org> 
+                2016, 2017
 
-----------------------------------------------------------------------
+--------------------------------------------------------------------
 
 EOF
 	eval "${DIALOG}  --clear --cr-wrap --textbox ${TMPFILE} ${WINDOW_HEIGHT} ${WINDOW_WIDTH}"
@@ -953,60 +1192,489 @@ EOF
 
 
 
-function about_menu(){
+##function 
+about_menu(){
 
-	while [ 1 -eq 1 ]; do 
-		eval "${DIALOG}  --cancel-label 'Up' --menu 'setnet ${VERSION} -- About' \
+	  while  true; do 
+		    eval "${DIALOG}  --cancel-label 'Up' --menu 'setnet ${VERSION} -- About' \
 			   ${WINDOW_HEIGHT} ${WINDOW_WIDTH} 6 \
 			   'Info' 'General information' \
-			   'Copyright' 'Copyright information' \
-			   'License' 'How to distribute this program' \
-			   2> ${TMPFILE}"
-		if [ $? -eq 1 ];then
-			return;
+			   'Copyleft' 'Copyleft information' \
+			   'License' 'How to distribute this program' " \
+			   2> ${TMPFILE}
+		    if [ $? -eq 1 ];then
+			      return;
+		    fi
+		    
+		    ACTION=$(cat ${TMPFILE})
+		    case ${ACTION} in
+			      "Info")
+				        show_info
+				        ;;
+			      "Copyleft")
+				        show_copyright
+				        ;;
+			      "License")
+				        show_license
+				        ;;
+		    esac
+	  done
+}
+
+##function
+notfound(){
+
+    CMDNAME=$1
+
+    
+    eval "${DIALOG} --clear --msgbox 'Sorry! Commmand ${CMDNAME} not found!'" \
+         ${INFO_HEIGHT} ${INFO_WIDTH}
+    
+}
+
+
+##function
+netdiag_DNS(){
+
+    DUMPFILE=$1
+    
+    if [ -n "${DUMPFILE}" ]; then
+        ## Dump to file
+        printf "\n=====\n== DNS Configuration (/etc/resolv.conf)\n=====\n\n" >> ${DUMPFILE}
+        cat /etc/resolv.conf >> ${DUMPFILE}
+        echo "==================================" >> ${DUMPFILE}
+        return 0
+    fi
+
+    ## Dump to dialog
+    NAMESERVERS=$(grep '^nameserver' /etc/resolv.conf)
+    MSG_STR="Configured name servers in /etc/resolv.conf ==\n\n${NAMESERVERS}"
+
+    eval "${DIALOG} --clear --title 'DNS servers' --msgbox '${MSG_STR}' "\
+         ${WINDOW_HEIGHT} ${WINDOW_WIDTH}
+    
+}
+
+##function
+netdiag_resolver(){
+
+    DUMPFILE=$1
+    
+    if [ -n "${DUMPFILE}" ]; then
+        ## Dump to file
+        printf "\n=====\n== Resolver Configuration (/etc/nsswitch.conf)\n=====\n\n" >> ${DUMPFILE}
+        grep -v '^#' /etc/nsswitch.conf >> ${DUMPFILE}
+        echo "==================================" >> ${DUMPFILE}
+        return 0
+    fi
+
+    ## Dump to dialog
+    RESOLVER=$(grep -v '^#' /etc/nsswitch.conf)
+
+    eval "${DIALOG} --clear --title 'Resolver configuration (/etc/nsswitch.conf)' \
+          --msgbox '${RESOLVER}' "\
+         ${WINDOW_HEIGHT} ${WINDOW_WIDTH}
+    
+}
+
+
+##function
+netdiag_routes(){
+
+    DUMPFILE=$1
+
+    HAS_NETSTAT=$(echo ${HAS_OPTS} | grep -c " netstat ")
+    if [ ${HAS_NETSTAT} -ne 1 ]; then
+        notfound "nestat"
+        return
+    fi
+
+    if [ -n "${DUMPFILE}" ]; then
+        ## Dump to file
+        printf "\n=====\n== Routing table\n=====\n\n" >> ${DUMPFILE}
+        netstat -rn >> ${DUMPFILE}
+        echo "==================================" >> ${DUMPFILE}
+        return 0
+    fi
+    ## Dump to dialog
+    ROUTES=$(netstat -rn > ${TMPFILE} )
+    
+    eval "${DIALOG} --clear --no-collapse --title 'Routing table (netstat -rn) [arrows to scroll]'" \
+         "--tab-correct --tab-len 4 --textbox ${TMPFILE} "\
+         ${LARGE_HEIGHT} ${LARGE_WIDTH}
+}
+
+##function
+netdiag_ARP(){
+
+    DUMPFILE=$1
+    log "netdiag_ARP" "DUMPFILE: '${DUMPFILE}'"
+    if [ -n "${DUMPFILE}" ]; then
+        ## Dump to file
+        printf "\n=====\n== ARP table\n=====\n\n" >> "${DUMPFILE}"
+        cat /proc/net/arp >> "${DUMPFILE}"
+        echo "==================================" >> ${DUMPFILE}
+        return 0
+    fi
+
+    # Dump to dialog
+    ARP=$(cat /proc/net/arp >${TMPFILE})
+
+    eval "${DIALOG} --clear --no-collapse --title 'ARP table (/proc/net/arp) [arrows to scroll]'" \
+         "--tab-correct --tab-len 4 --textbox ${TMPFILE} "\
+         ${LARGE_HEIGHT} ${LARGE_WIDTH}
+}
+
+##function
+netdiag_connections(){
+
+    DUMPFILE=$1
+
+   
+    HAS_NETSTAT=$(echo ${HAS_OPTS} | grep -c " netstat ")
+    if [ ${HAS_NETSTAT} -ne 1 ]; then
+        notfound "nestat"
+        return
+    fi
+
+    if [ -n "${DUMPFILE}" ]; then
+        ## Dump to file
+        printf "\n=====\n== Active Network Connections\n=====\n\n" >> ${DUMPFILE}
+        netstat -tnp | sed -r -e 's/$/\n/g' >> ${DUMPFILE}
+        echo "==================================" >> ${DUMPFILE}
+        return 0
+    fi
+
+    ## Dump to dialog
+    SERV=$(netstat -tnp | sed -r -e 's/$/\n/g' > ${TMPFILE})
+    
+    eval "${DIALOG} --clear --no-collapse "\
+         " --title 'Active network connections (netstat -tnp) [arrows to scroll]'" \
+         "--tab-correct --tab-len 4 --textbox ${TMPFILE} "\
+         ${LARGE_HEIGHT} ${LARGE_WIDTH}
+}
+
+
+##function
+netdiag_services(){
+
+    DUMPFILE=$1
+
+    HAS_NETSTAT=$(echo ${HAS_OPTS} | grep -c " netstat ")
+    if [ ${HAS_NETSTAT} -ne 1 ]; then
+        notfound "nestat"
+        return
+    fi
+
+    if [ -n "${DUMPFILE}" ]; then
+        ## Dump to file
+        printf "\n=====\n== Active network services\n=====\n\n" >> ${DUMPFILE}
+        netstat -ltnp | sed -r -e 's/$/\n/g' >> ${DUMPFILE}
+        echo "==================================" >> ${DUMPFILE}
+        return 0
+    fi
+    
+
+    SERV=$(netstat -ltnp | sed -r -e 's/$/\n/g' > ${TMPFILE})
+    
+    eval "${DIALOG} --clear --no-collapse "\
+         " --title 'Active network services (netstat -ltnp) [arrows to scroll]'" \
+         "--tab-correct --tab-len 4 --textbox ${TMPFILE} "\
+         ${LARGE_HEIGHT} ${LARGE_WIDTH}
+}
+
+
+##function
+netdiag_ping(){
+    
+    HAS_PING=$(echo ${HAS_OPTS} | grep -c " ping ")
+    if [ ${HAS_PING} -ne 1 ]; then
+        notfound "ping"
+        return
+    fi
+    eval "${DIALOG} --insecure --inputbox 'Host or IP to ping:' \
+				   ${INFO_HEIGHT} ${INFO_WIDTH}"  2> ${TMPFILE}
+
+    if [ $? -ne 0 ]; then
+       	eval "${DIALOG}  --clear --msgbox 'Ping Aborted' \
+					   ${INFO_HEIGHT} ${INFO_WIDTH}"
+        return
+    else
+        PINGIP=$(cat ${TMPFILE})
+        ping -c 5 ${PINGIP} > ${TMPFILE} &
+        PINGPID=$!
+        eval "${DIALOG} --clear --title 'Ping ${PINGIP}'"\
+             "--tailbox ${TMPFILE} " \
+             ${LARGE_HEIGHT} ${LARGE_WIDTH}
+        if [ $? -ne 0 ];then
+            kill -9 ${PINGPID}
+        fi
+    fi
+
+}
+
+##function
+netdiag_traceroute(){
+    
+    HAS_TRACERT=$(echo ${HAS_OPTS} | grep -c " traceroute ")
+    if [ ${HAS_TRACERT} -ne 1 ]; then
+        notfound "traceroute"
+        return
+    fi
+    eval "${DIALOG} --insecure --inputbox 'Host or IP to trace:' \
+				   ${INFO_HEIGHT} ${INFO_WIDTH}"  2> ${TMPFILE}
+
+    if [ $? -ne 0 ]; then
+       	eval "${DIALOG}  --clear --msgbox 'Traceroute Aborted' \
+					   ${INFO_HEIGHT} ${INFO_WIDTH}"
+        return
+    else
+        TRACEIP=$(cat ${TMPFILE})
+        traceroute ${TRACEIP} > ${TMPFILE} &
+        TRCPID=$!
+        eval "${DIALOG} --clear --title 'Traceroute ${TRACEIP}'"\
+             "--tailbox ${TMPFILE} " \
+             ${LARGE_HEIGHT} ${LARGE_WIDTH}
+        if [ $? -ne 0 ];then
+            kill -9 ${TRCPID}
+        fi
+    fi
+}
+
+
+##function
+netdiag_query(){
+
+    HAST_HOST=$(echo ${HAS_OPTS} | grep -c " host ")
+    if [ $? -ne 1 ]; then
+        notfound "host"
+        return
+    fi
+
+    eval "${DIALOG} --insecure --inputbox 'Hostname or IP to query:' \
+				   ${INFO_HEIGHT} ${INFO_WIDTH}"  2> ${TMPFILE}
+    
+    if [ $? -ne 0 ]; then
+       	eval "${DIALOG}  --clear --msgbox 'DNS query aborted' \
+					   ${INFO_HEIGHT} ${INFO_WIDTH}"
+        return
+    else
+        QUERYIP=$(cat ${TMPFILE})
+        host ${QUERYIP} > ${TMPFILE} &
+        QUERYPID=$!
+        eval "${DIALOG} --clear --title 'host ${QUERYIP}'"\
+             "--tailbox ${TMPFILE} " \
+             ${LARGE_HEIGHT} ${LARGE_WIDTH}
+        if [ $? -ne 0 ];then
+            kill -9 ${QUERYPID}
+        fi
+    fi
+
+}
+
+##function
+netdiag_devices(){
+
+    DUMPFILE=$1
+
+    if [ -n "${DUMPFILE}" ]; then
+        printf "\n=====\n== Network Devices\n=====\n\n" >> ${DUMPFILE}
+        ip addr >> ${DUMPFILE}
+        echo "==================================" >> ${DUMPFILE}
+        return 0
+    fi
+}
+
+
+
+##
+## Main menu for network diagnostics
+##
+
+##function
+netdiag_menu(){
+    
+	  while  true; do 
+		    eval "${DIALOG}  --cancel-label 'Up' --menu 'Network diagnostics' \
+			   ${WINDOW_HEIGHT} ${WINDOW_WIDTH} 10 \
+			   'ARP' 'Show ARP table'  \
+         'Connections' 'List active network connections' \
+			   'DNS' 'List DNS servers' \
+         'Ping' 'Ping a host'  \
+         'Query' 'DNS Query' \
+         'Resolver' 'Show resolver configuration' \
+			   'Routes' 'Show routing table' \
+         'Services' 'List active network daemons'  \
+         'Traceroute' 'Show the route to a host' " \
+			       2> ${TMPFILE}
+		    if [ $? -eq 1 ];then
+			      return;
+		    fi
+		    
+		    ACTION=$(cat ${TMPFILE})
+		    case ${ACTION} in
+			      "ARP")
+				        netdiag_ARP
+				        ;;
+			      "Connections")
+				        netdiag_connections
+				        ;;
+			      "DNS")
+				        netdiag_DNS
+				        ;;
+            "Ping")
+				        netdiag_ping
+				        ;;
+            "Query")
+                netdiag_query
+                ;;
+			      "Resolver")
+				        netdiag_resolver
+                ;;
+			      "Routes")
+				        netdiag_routes
+                ;;
+			      "Services")
+				        netdiag_services
+				        ;;
+			      "Traceroute")
+				        netdiag_traceroute
+				        ;;
+		    esac
+	  done
+    
+    
+}
+
+##function
+dump_file(){
+    
+    CONF=$1
+
+    log "dump_file" "CONF: ${CONF}"
+    
+    DUMPFILE="/tmp/network_dump.txt"
+    
+	  eval "${DIALOG}  --fselect ${DUMPFILE} ${WINDOW_HEIGHT} ${WINDOW_WIDTH}" \
+			   2>${TMPFILE}
+	  
+	  if [ $? -eq 0 ]; then
+		    SEL_FILE=$(cat ${TMPFILE})
+		    while [ -d "${SEL_FILE}" ]; do
+			      eval "${DIALOG}  --fselect ${SEL_FILE} ${WINDOW_HEIGHT} ${WINDOW_WIDTH}" \
+					   2>${TMPFILE}
+			      if [ $? -eq 0 ]; then
+				        SEL_FILE=$(cat ${TMPFILE})
+			      else
+				        eval "${DIALOG}  --clear --msgbox 'Dump aborted' \
+						   ${INFO_HEIGHT} ${INFO_WIDTH}"
+				        return
+			      fi
+		    done
+		    
+        ## The dump starts here....
+			  DUMPFILE=${SEL_FILE}
+        truncate -s 0 ${DUMPFILE}
+        echo "===== setnet ${VERSION}" >> ${DUMPFILE}
+        echo "===== Date: $(date)" >> ${DUMPFILE}
+        echo "===== Network configuration dump: ${CONF} " >> ${DUMPFILE}
+        for c in ${CONF}; do
+            eval "netdiag_${c} \"${DUMPFILE}\""
+        done
+	  else
+		    eval "${DIALOG}  --clear --msgbox 'Dump aborted' \
+				   ${INFO_HEIGHT} ${INFO_WIDTH}"
+        return
+	  fi
+		eval "${DIALOG}  --clear --msgbox 'Status dumped to ${DUMPFILE}' \
+						   ${INFO_HEIGHT} ${INFO_WIDTH}"
+}
+
+
+##function
+dump_pastebin(){
+    
+    CONF=$1
+
+    
+
+}
+
+##function 
+dump_menu(){
+
+    eval "${DIALOG} --clear --checklist 'Select conf to dump' \
+             ${WINDOW_HEIGHT} ${WINDOW_WIDTH} 10 \
+             'ARP' 'ARP table' on \
+             'devices' 'Device configuration' on \
+             'DNS' 'DNS configuration' on \
+             'resolver' 'System resolver configuration' on \
+             'routes' 'Routing table' on \
+             'connections' 'Active network connections' on \
+             'services' 'Active network services' on " 2> ${TMPFILE}
+    if [ $? -ne 0 ]; then
+        return
+    fi
+    
+    DUMP_CONF=$(cat ${TMPFILE})
+    
+    eval "${DIALOG} --clear --cancel-label 'Up' \
+           --menu 'Dump configuration to:' \
+           ${INFO_HEIGHT} ${INFO_WIDTH} 6 \
+           'File' 'Dump to file' \
+           'Pastebin' 'Dump to pastebin'" \
+         2> ${TMPFILE}
+    if [ $? -eq 1 ];then
+			  return;
 		fi
 		
-		ACTION=`<${TMPFILE}`
+		ACTION=$(cat ${TMPFILE})
 		case ${ACTION} in
-			"Info")
-				show_info
-				;;
-			"Copyright")
-				show_copyright
-				;;
-			"License")
-				show_license
-				;;
+			  "File")
+            dump_file "${DUMP_CONF}"
+				    ;;
+			  "Pastebin")
+            dump_pastebin "${DUMP_CONF}"
+				    ;;
 		esac
-	done
 }
 
 
-function show_toplevel(){
-	
-	eval "${DIALOG} --clear --cancel-label 'Quit' --menu 'Main Menu' \
+##function 
+show_toplevel(){
+
+    log "show_toplevel" "TMPFILE: ${TMPFILE}"
+	  eval "${DIALOG} --clear --cancel-label 'Quit' --menu 'Main Menu' \
 		   ${WINDOW_HEIGHT} ${WINDOW_WIDTH} 6 \
 		   'Setup' 'Setup interfaces' \
-		   'About' 'Info & Copyright' 2> ${TMPFILE}"
-	return $?
+       'Info' 'Network diagnostics' \
+       'Dump' 'Dump current network status' \
+       'Log' 'View setnet log' \
+		   'About' 'License & Copyleft'" 2> ${TMPFILE}
+    
+	  return $?
 }
 
-function show_help(){
+##function 
+show_help(){
 
-	local SCRIPTNAME=$1
+##local 
+SCRIPTNAME=$1
 	echo "Usage: ${SCRIPTNAME} [OPTION]"
 	echo "Options:"
-	echo -e "\t -c cfg_file\tLoad configuration from cfg_file."
-	echo -e "\t -v\t\tPrint version number and exit. "
-	echo -e "\t -h\t\tShow this help."
+	printf  "\t -c cfg_file\tLoad configuration from cfg_file.\n"
+	printf  "\t -v\t\tPrint version number and exit.\n"
+	printf  "\t -h\t\tShow this help.\n"
 	
 }
 
-function show_version(){
+##function 
+show_version(){
 
-	local SCRIPTNAME=$1
+##local 
+SCRIPTNAME=$1
 	echo "${SCRIPTNAME} -- version ${VERSION}"
-	echo "Copyright (C) Vincenzo \"KatolaZ\" Nicosia (katolaz@freaknet.org) -- 2016"
+	echo "Copyleft (C) Vincenzo \"KatolaZ\" Nicosia (katolaz@freaknet.org) -- 2016, 2017"
 	echo "This is free software. You can use and redistribute it under the "
 	echo "terms of the GNU General Public Licence version 3 or (at your option)"
 	echo "any later version."
@@ -1016,15 +1684,17 @@ function show_version(){
 	echo "FITNESS FOR A PARTICULAR PURPOSE."
 }
 
-function show_disclaimer(){
+##function 
+show_disclaimer(){
 
 	cat <<EOF > ${TMPFILE}
 
-                == setnet.sh 0.1 ==
+                -+- setnet.sh ${VERSION} -+-
 
-      (c) KatolaZ (katolaz@freaknet.org) -- 2016
+      Copyleft (C) KatolaZ (katolaz@freaknet.org) 
+                    2016, 2017
 
-    -+- This is the alpha release of setnet.sh -+-
+     -+- This is an alpha release of setnet.sh -+-
    
                  THIS IS FREE SOFTWARE
         YOU CAN USE AND DISTRIBUTE IT UNDER THE 
@@ -1036,86 +1706,147 @@ function show_disclaimer(){
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE
 
         See "About" for more information about 
-                 copyright and license
+           your right and distribution terms
 EOF
 
 	eval "${DIALOG}  --clear --cr-wrap --textbox ${TMPFILE} 23 60"
 	return
 }
 
+##function
+initialise(){
+
+
+    TMPFILE=$( (tempfile) 2>/dev/null) || TMPFILE=/tmp/setnet_$$
+    WPA_PIDFILE=$( (tempfile) 2>/dev/null) || WPA_PIDFILE=/tmp/setnet_wpapid_$$
+    
+	  trap cleanup 0 HUP INT TRAP TERM QUIT
+
+    if [ -z ${TRUNCATE_LOG} ] || \
+           [ ${TRUNCATE_LOG} = "yes" ] || \
+               [ ${TRUNCATE_LOG} = "YES" ]; then
+	      truncate -s 0 ${LOGFILE}
+    fi
+    
+}
+
 
-function main(){
+##function
+log_show(){
+    
+    eval "${DIALOG} --clear --cr-wrap --title 'setnet log file (${LOGFILE})'\
+    --textbox ${LOGFILE} \
+    ${WINDOW_HEIGHT} ${WINDOW_WIDTH}" 
+    
+}
+
+##function 
+main(){
 
-	truncate -s 0 ${LOGFILE}
-	trap cleanup 0 $SIG_NONE $SIG_HUP $SIG_INT $SIG_TRAP $SIG_TERM
 
 	show_disclaimer
 	
-	log "setnet" "Starting afresh on `date`"
-	SETNETRC=`realpath ${SETNETRC}`
+	log "setnet" "Starting afresh on $(date)"
+	SETNETRC=$(realpath ${SETNETRC})
 	log "main" "Using config file \"${SETNETRC}\""
-	WPA_FILE=`realpath ${WPA_FILE}`
+	WPA_FILE=$(realpath ${WPA_FILE})
 	log "main" "Using WPA config file \"${WPA_FILE}\""
-	LOFGILE=`realpath ${LOGFILE}`
+	LOFGILE=$(realpath ${LOGFILE})
 	log "main" "Using log file \"${LOGFILE}\""
 	
-	while [ 1 -eq 1 ]; do 
-		show_toplevel
-		if [ $? -eq 1 ]; then
-			cleanup
-			exit 1
-		fi
-		ACTION=`<${TMPFILE}`
-		case ${ACTION} in
-			"Setup")
-				dev_config_menu
-				;;
-			"About")
-				about_menu
-				;;
-		esac
+	while  true; do 
+		  show_toplevel
+
+		  if [ $? -eq 1 ]; then
+			    cleanup
+			    exit 1
+		  fi
+      log "main" "${TMPFILE}"
+		  ACTION=$(cat ${TMPFILE})
+      log "main" "ACTION: ${ACTION}"
+		  case ${ACTION} in
+			    "Setup")
+				      dev_config_menu
+				      ;;
+          "Info")
+              netdiag_menu
+              ;;
+          "Dump")
+              dump_menu
+              ;;
+          "Log")
+              log_show
+              ;;
+			    "About")
+				      about_menu
+				      ;;
+		  esac
 	done
-
+  
 }
 
 
 ##
-## Get the options
+## The script starts here
+##
+
+
+##
+## Get command-line arguments
 ## 
 
 SETNETRC=""
 
 while getopts ":c:hv" opt; do
-	
-	case $opt in
-		c)
-			echo "Got option -c ${OPTARG}"
-			SETNETRC=`realpath ${OPTARG}`
-			echo "SETNETRC: ${SETNETRC}"
-			;;
-		h)
-			show_help `basename $0`
-			exit 1
-			;;
-		v)
-			show_version `basename $0`
-			exit 1
-			;;
-		\?)
-			echo "Invalid option: -${OPTARG}"
-			exit 1
-			;;
-		:)
-			echo "Option -${OPTARG} requires an argument"
-			exit 1
-			;;
-	esac
+	  
+	  case $opt in
+		    c)
+			      #echo "Got option -c ${OPTARG}"
+			      SETNETRC=$(realpath ${OPTARG})
+			      #echo "SETNETRC: ${SETNETRC}"
+			      ;;
+		    h)
+			      show_help $(basename $0)
+			      exit 1
+			      ;;
+		    v)
+			      show_version $(basename $0)
+			      exit 1
+			      ;;
+		    \?)
+			      echo "Invalid option: -${OPTARG}"
+			      exit 1
+			      ;;
+		    :)
+			      echo "Option -${OPTARG} requires an argument"
+			      exit 1
+			      ;;
+	  esac
 done
 
 
+##
+## Load the configuration file
+##
 
 load_setnetrc ${SETNETRC}
 
-main 
+##
+## Init stuff
+##
+
+initialise 
+
 
+##
+## Check dependencies. If we are missing someting essential, then exit.
+##
+
+check_deps
+
+##
+## This is the main loop
+##
+
+main