#!/bin/bash

rnpair()
{
  mv "$1" "$2"
  echo "Restoring $2"
}

cvtidx()
{
  read pair
  while test "x$pair" != "x"
    do rnpair $pair
    read pair
  done
}

if test $# -lt 1; then echo "Usage $0 <index file> <encryption key>"; exit 1; fi

ifile=${1%.*}
echo "Index file is $ifile"
key=$2

for i in *.cpt; do echo "Decrypting $i"; chmod +w "$i"; ccdecrypt -K $key "$i"; done
cvtidx < $ifile