first pass at a hostapd service, rough around the edges

tests/wlan/run.sh

@@ -0,0 +1,25 @@
+#!/usr/bin/env sh
+
+cleanup(){
+    if test -e foo.pid && test -d /proc/`cat foo.pid` ; then
+	echo "killing qemu"
+	kill `cat foo.pid`
+    fi
+}
+trap cleanup EXIT
+fatal(){
+    err=$?
+    echo "FAIL: command $(eval echo $BASH_COMMAND) exited with code $err"
+    exit $err
+}
+trap fatal ERR
+
+NIXPKGS_ALLOW_UNSUPPORTED_SYSTEM=1 nix-build '<liminix>' -I liminix-config=./configuration.nix --arg device "import <liminix/devices/qemu.nix>" -A outputs.default $*
+
+
+
+../../scripts/run-qemu.sh \
+    --background foo.sock \
+    result/vmlinux result/squashfs \
+
+nix-shell -p expect --run "expect wait-for-wlan.expect"