.scripts/network

   1 #!/usr/bin/env bash
   2
   3 wifi_icon="直"
   4 eth_icon=""
   5 other_icon="禍"
   6 bpm=1048576 # 1024*1024
   7 up_interfaces=$(ifconfig | grep "UP,BROADCAST,RUNNING" |\
   8         sed 's/://' | awk '{print $1}')
   9 up_type=
  10 ssid_strength=
  11
  12 check_type(){
  13         case $(uname) in
  14                 Linux) case $1 in
  15                                 wlp*) up_type=wlan  ;;
  16                                 enp*) up_type=eth   ;;
  17                                 *)    up_type=other ;;
  18                         esac ;;
  19                 OpenBSD) up_type=$(ifconfig $1 | grep "groups" | awk '{print $2}') ;;
  20         esac
  21 }
  22
  23 get_ssid_strength(){
  24         if [[ "$up_type"  == "wlan" ]]; then
  25                 case $(uname) in
  26                         Linux)
  27                         wifi_ssid=$(iw dev $1 link | grep SSID | cut -d " " -f 2-)
  28                         wifi_strength=$(grep "^\s*w" /proc/net/wireless |\
  29                         awk '{print int($3 * 100 / 70) "%"}')
  30                         ssid_strength='\n'$wifi_ssid' '$wifi_strength;;
  31
  32                         OpenBSD) ssid_strength=$(echo "$int" | grep join |\
  33                                 awk '{print "\n"$3"\t"int((-0.0154*$8*$8)-(0.3794*$8)+98.182)"%"}');;
  34                         esac
  35         fi
  36
  37 }
  38
  39 print_status(){
  40         for each_interface in $up_interfaces; do
  41                 case $(uname) in
  42                         Linux) total_in=$(
  43                                 cat /sys/class/net/$each_interface/statistics/rx_bytes);;
  44                         OpenBSD) total_in=$(netstat -b -I $each_interface |\
  45                                 egrep "[0-9]{2}:" | awk '{print $5}');;
  46                 esac
  47                 check_type $each_interface
  48                 case $up_type in
  49                         egress) icon=$other_icon ;;
  50                         wlan)   icon=$wifi_icon  ;;
  51                         eth)    icon=$eth_icon   ;;
  52                         *)      icon=$other_icon ;;
  53                 esac
  54                 in_sum=$(($total_in / $bpm))
  55                 result+=$icon' '$in_sum' '
  56         done
  57         echo $result
  58 }
  59
  60 notify_status(){
  61         for each_interface in $up_interfaces; do
  62                 int=$(ifconfig $each_interface)
  63                 ip=$(echo "$int" | grep 'inet ' | awk '{print $2}')
  64                 check_type $each_interface
  65                 get_ssid_strength $each_interface
  66                 result+="$up_type\t($each_interface)$ssid_strength\n$ip\n\n"
  67         done
  68         notify-send "Network details" "$result"
  69 }
  70
  71 case $1 in
  72         notify) notify_status ;;
  73         *)      print_status ;;
  74 esac