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/*
* anytun
*
* The secure anycast tunneling protocol (satp) defines a protocol used
* for communication between any combination of unicast and anycast
* tunnel endpoints. It has less protocol overhead than IPSec in Tunnel
* mode and allows tunneling of every ETHER TYPE protocol (e.g.
* ethernet, ip, arp ...). satp directly includes cryptography and
* message authentication based on the methodes used by SRTP. It is
* intended to deliver a generic, scaleable and secure solution for
* tunneling and relaying of packets of any protocol.
*
*
* Copyright (C) 2007-2009 Othmar Gsenger, Erwin Nindl,
* Christian Pointner <satp@wirdorange.org>
*
* This file is part of Anytun.
*
* Anytun 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 3 of the License, or
* any later version.
*
* Anytun 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 anytun. If not, see <http://www.gnu.org/licenses/>.
*/
#include <string.h>
#include <sstream>
#include <windows.h>
#include "registryKey.h"
#include "../anytunError.h"
RegistryKey::RegistryKey() : opened_(false)
{
}
RegistryKey::RegistryKey(HKEY hkey, std::string subKey, REGSAM samDesired) : opened_(false)
{
open(hkey, subKey, samDesired);
}
RegistryKey::~RegistryKey()
{
close();
}
bool RegistryKey::isOpen() const
{
return opened_;
}
std::string RegistryKey::getName() const
{
return name_;
}
DWORD RegistryKey::open(HKEY hkey, std::string subKey, REGSAM samDesired)
{
if(opened_)
RegCloseKey(key_);
opened_ = false;
name_ = "";
LONG err = RegOpenKeyExA(hkey, subKey.c_str(), 0, samDesired, &key_);
if(err != ERROR_SUCCESS)
return err;
name_ = subKey;
opened_ = true;
return ERROR_SUCCESS;
}
void RegistryKey::close()
{
if(opened_)
RegCloseKey(key_);
opened_ = false;
}
std::string RegistryKey::operator[](std::string const& name) const
{
if(!opened_)
throw AnytunErrno(ERROR_INVALID_HANDLE);
char value[STRING_VALUE_LENGTH];
DWORD len = sizeof(value);
LONG err = RegQueryValueExA(key_, name.c_str(), NULL, NULL, (LPBYTE)value, &len);
if(err != ERROR_SUCCESS)
throw AnytunErrno(err);
if(value[len-1] != 0) {
if(len < sizeof(value))
value[len++] = 0;
else
throw AnytunErrno(ERROR_INSUFFICIENT_BUFFER);
}
return std::string(value);
}
DWORD RegistryKey::getSubKey(DWORD index, RegistryKey& subKey, REGSAM sam) const
{
char subkeyname[NAME_LENGTH];
DWORD len = sizeof(subkeyname);
DWORD err = RegEnumKeyExA(key_, index, subkeyname, &len, NULL, NULL, NULL, NULL);
if(err != ERROR_SUCCESS)
return err;
return subKey.open(key_, subkeyname, sam);
}
DWORD RegistryKey::getSubKey(std::string name, RegistryKey& subKey, REGSAM sam) const
{
return subKey.open(key_, name.c_str(), sam);
}
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