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/* $Id: ClientId.cpp $ */
/** @file
* DHCP server - client identifier
*/
/*
* Copyright (C) 2017-2023 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* 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, in version 3 of the
* License.
*
* 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, see <https://www.gnu.org/licenses>.
*
* SPDX-License-Identifier: GPL-3.0-only
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#include <algorithm>
#include "ClientId.h"
/*********************************************************************************************************************************
* Global Variables *
*********************************************************************************************************************************/
/** Indiciates wherther ClientId::rtStrFormat was already registered. */
bool ClientId::g_fFormatRegistered = false;
/**
* Registers the ClientId format type callback ("%R[id]").
*/
void ClientId::registerFormat() RT_NOEXCEPT
{
if (!g_fFormatRegistered)
{
int rc = RTStrFormatTypeRegister("id", rtStrFormat, NULL);
AssertRC(rc);
g_fFormatRegistered = RT_SUCCESS(rc);
}
}
/**
* @callback_method_impl{FNRTSTRFORMATTYPE, Formats ClientId via "%R[id]". }
*/
DECLCALLBACK(size_t)
ClientId::rtStrFormat(PFNRTSTROUTPUT pfnOutput, void *pvArgOutput,
const char *pszType, void const *pvValue,
int cchWidth, int cchPrecision, unsigned fFlags,
void *pvUser)
{
RT_NOREF(pszType, cchWidth, cchPrecision, fFlags, pvUser);
Assert(strcmp(pszType, "id") == 0);
const ClientId *pThis = static_cast<const ClientId *>(pvValue);
if (pThis == NULL)
return pfnOutput(pvArgOutput, RT_STR_TUPLE("<NULL>"));
size_t cb = 0;
if (pThis->m_id.present())
{
cb += pfnOutput(pvArgOutput, RT_STR_TUPLE("["));
const OptClientId::value_t &idopt = pThis->m_id.value();
for (size_t i = 0; i < idopt.size(); ++i)
cb += RTStrFormat(pfnOutput, pvArgOutput, NULL, 0, "%s%02x", (i == 0 ? "" : ":"), idopt[i]);
cb += pfnOutput(pvArgOutput, RT_STR_TUPLE("] ("));
}
cb += RTStrFormat(pfnOutput, pvArgOutput, NULL, 0, "%RTmac", &pThis->m_mac);
if (pThis->m_id.present())
cb += pfnOutput(pvArgOutput, RT_STR_TUPLE(")"));
return cb;
}
bool operator==(const ClientId &l, const ClientId &r) RT_NOEXCEPT
{
if (l.m_id.present())
{
if (r.m_id.present())
return l.m_id.value() == r.m_id.value();
}
else
{
if (!r.m_id.present())
return l.m_mac == r.m_mac;
}
return false;
}
bool operator<(const ClientId &l, const ClientId &r) RT_NOEXCEPT
{
if (l.m_id.present())
{
if (r.m_id.present())
return l.m_id.value() < r.m_id.value();
return false; /* the one with id comes last */
}
else
{
if (r.m_id.present())
return true; /* the one with id comes last */
return l.m_mac < r.m_mac;
}
}
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