network: Use real interface name for ifconfig up

Using the variable name doesn't work in cases like this:

   my_interface_foo="eth0 blah blah"
   INTERFACES=(my_interface_foo)

It produces errors like so:
   my_interface_foo no such device

Fixes FS#16114

Signed-off-by: Aaron Griffin <aaronmgriffin@gmail.com>

1 files changed, 6 insertions, 2 deletions

diff --git a/network b/network
index 35982b9..de144a2 100755
--- a/network
+++ b/network
@@ -19,11 +19,15 @@ ifup()
 		return 1
 	fi
 
-	/sbin/ifconfig $1 up
+	eval ifcfg="\$${1}"
+
+	# Get the name of the interface from the first token in the string
+	ifname=${ifcfg%% *}
+
+	/sbin/ifconfig $ifname up
 
 	wi_up $1 || return 1
 
-	eval ifcfg="\$${1}"
 	if [ "$ifcfg" = "dhcp" ]; then
 		# remove the .pid file if it exists
 		/bin/rm -f /var/run/dhcpcd-${1}.pid >/dev/null 2>&1