Add ifconfig and iwconfig commands path as configuration variables.

[software/wpe.git] / rotate-key

diff --git a/rotate-key b/rotate-key
index e116e1b0cbc63a8c5f38c29bc1104d71aae3b3fc..c8385db01c66f2f535ac008005b60d99ec1a2958 100644 (file)
--- a/rotate-key
+++ b/rotate-key
@@ -33,6 +33,10 @@ KEY_FORMAT="$KEY_BASE%D%p"
 KEY_SIZE=13
 # Hash command/algorithm used to compute the actual key
 HASH_PROG="sha1sum"
+# ifconfig path
+IFCONFIG="/sbin/ifconfig"
+# iwconfig path
+IWCONFIG="/sbin/iwconfig"
 
 # Do not touch
 ##############
@@ -40,10 +44,17 @@ HASH_PROG="sha1sum"
 
 export LANG=C
 
+# Check if interface exists
+if ! $IFCONFIG "$IFACE" > /dev/null 2>&1
+then
+  exit 0
+fi
+
 # Check if they are using our essid
 if [ -n "$ESSID" ]
 then
-  curr_essid=`iwconfig $IFACE | grep ESSID | sed 's/.*ESSID:"\([^"]\+\)".*/\1/'`
+  curr_essid=`$IWCONFIG $IFACE | grep ESSID \
+      | sed 's/.*ESSID:"\([^"]\+\)".*/\1/'`
   if [ "$curr_essid" != "$ESSID" ]
   then
     exit 0
@@ -58,12 +69,12 @@ key=`echo "$str" | $HASH_PROG | cut -c-$size`
 # Compute the new channel
 if [ -n "$ROTATE_CHANNEL" ]
 then
-  chan=`echo $key | tr abcdef 847502 | cut -c-6`
+  chan=1`echo $key | tr abcdef 847502 | cut -c-6`
   chan=$(($chan % $MAX_CHANNEL + 1))
   channel="channel $chan"
 fi
 
 # Commit changes
-/sbin/iwconfig $IFACE key $SECURITY_MODE $key $channel $COMMIT
+$IWCONFIG $IFACE key $SECURITY_MODE $key $channel $COMMIT
 
 # vim: set et sw=2 sts=2 :