keyring.cc

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/*
 *  Copyright (C) 2001  The Exult Team
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#ifdef HAVE_CONFIG_H
#  include <config.h>
#endif

#include <fstream>

#include "keyring.h"
#include "utils.h"
#include "fnames.h"
#include "exceptions.h"

using std::ifstream;
using std::ofstream;

void Keyring::read()
{
  ifstream in;

  // clear keyring first
  keys.clear();

  try
  {
    U7open(in, KEYRINGDAT);
  }
  catch(exult_exception &e) {
    // maybe an old savegame, just leave the keyring empty
    return;
  }

  do {
    int val = Read2(in);
    if (in.good())
      addkey(val);
  } while (in.good());

  in.close();
}

void Keyring::write()
{
  ofstream out;

  U7open(out, KEYRINGDAT);

  std::set<int>::iterator iter;

  for (iter = keys.begin(); iter != keys.end(); ++iter)
    Write2(out, *iter);

  out.close();
}

void Keyring::clear()
{
  keys.clear();
}

void Keyring::addkey(int qual)
{
  keys.insert(qual);
}

bool Keyring::checkkey(int qual)
{
  return (keys.find(qual) != keys.end());
}

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