#!/bin/sh

LOCKDIR=/usr/spool/locks

case "$1" in
    "")		echo "Usage: unlock lockfile"; exit 1 ;;
    .*)		echo "Usage: unlock lockfile"; exit 1 ;;
esac

if [ -f $LOCKDIR/$1 -a `wc -c < $LOCKDIR/$1` -eq 4 ]
then
    rm -f $LOCKDIR/$1
    exit 0
else
    echo "Usage: unlock lockfile"
    exit 1
fi
