examples/ping-places.sh

   1 #!/bin/sh
   2
   3 if [ `id -u` -ne 0 ] || [ "$1" = "" ]; then exit 1; fi
   4
   5 if [ -x /usr/bin/fping ]; then
   6         PING="/usr/bin/fping"
   7 else
   8         PING="/bin/ping -c 2"
   9 fi
  10
  11 iface="$1"
  12 which=""
  13
  14 while read addr pingme scheme; do
  15         if [ "$which" ]; then continue; fi
  16
  17         #echo "  Trying $addr & $pingme ($scheme)" >&2
  18
  19         ip addr add $addr dev $iface  >/dev/null 2>&1
  20         ip link set $iface up         >/dev/null 2>&1
  21
  22         if $PING $pingme >/dev/null 2>&1; then
  23                 which="$scheme"
  24         fi
  25         ip link set $iface down       >/dev/null 2>&1
  26         ip addr del $addr dev $iface  >/dev/null 2>&1
  27 done
  28
  29 if [ "$which" ]; then echo $which; exit 0; fi
  30 exit 1