#!/bin/sh

if [ -n "$1" ]; then
    [ -s /etc/ltsp/clients.conf ] && . /etc/ltsp/clients.conf
    if [ -z "$2" ]; then
	[ -s /etc/ltsp/clients.conf ] && . /etc/ltsp/clients.conf
    else
	SWAP_SIZE=$2
    fi
    [ -f "$1" ] && [ "${1:0:1}" = "/" ] ||
	mkdir -p "$(dirname "$1")" &&
	dd if=/dev/zero of="$1" bs=1M count=${SWAP_SIZE:-128} &&
	/sbin/mkswap -v1 "$1"
else
    echo "Usage: $0 <filename> <sizeM>"
    exit 1
fi