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/*
* Copyright (C) 2001-2022 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 "keyring.h"
#include "endianio.h"
#include "exceptions.h"
#include "fnames.h"
#include "utils.h"
#include <fstream>
using std::ifstream;
using std::ofstream;
void Keyring::read() {
std::unique_ptr<std::istream> pIn;
// clear keyring first
keys.clear();
try {
pIn = U7open_in(KEYRINGDAT);
} catch (exult_exception& /*e*/) {
// maybe an old savegame, just leave the keyring empty
return;
}
if (!pIn) {
return;
}
auto& in = *pIn;
do {
const int val = little_endian::Read2(in);
if (in.good()) {
addkey(val);
}
} while (in.good());
}
void Keyring::write() {
auto pOut = U7open_out(KEYRINGDAT);
if (!pOut) {
throw file_open_exception(KEYRINGDAT);
}
auto& out = *pOut;
for (const int key : keys) {
little_endian::Write2(out, key);
}
}
void Keyring::clear() {
keys.clear();
}
void Keyring::addkey(int qual) {
keys.insert(qual);
}
bool Keyring::checkkey(int qual) {
return keys.find(qual) != keys.end();
}
bool Keyring::removekey(int qual) {
auto ent = keys.find(qual);
if (ent == keys.end()) {
return false;
} else {
keys.erase(ent);
return true;
}
}
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