net/ifconfig net/iproute2: support lookup ifconfig/ip dynamically

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

net/ifconfig.sh.Linux.in

@@ -1,9 +1,18 @@
 # Copyright (c) 2007-2008 Roy Marples <roy@marples.name>
 # Released under the 2-clause BSD license.
 
+_ifconfig()
+{
+	if [ -x /bin/ifconfig ]; then
+		echo /bin/ifconfig
+	else
+		which ifconfig 2>/dev/null
+	fi
+}
+
 ifconfig_depend()
 {
-	program /sbin/ifconfig
+	program $(_ifconfig)
 	provide interface
 }
 

net/iproute2.sh

@@ -6,7 +6,7 @@ _ip()
 	if [ -x /bin/ip ]; then
 		echo /bin/ip
 	else
-		echo /sbin/ip
+		which ip 2>/dev/null
 	fi
 }