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/* $Id: macstr.cpp $ */
/** @file
* IPRT - Command Line Parsing
*/
/*
* Copyright (C) 2013-2022 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>.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
* in the VirtualBox distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*
* SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#include <iprt/cidr.h>
#include <iprt/net.h> /* must come before getopt.h */
#include "internal/iprt.h"
#include <iprt/assert.h>
#include <iprt/ctype.h>
#include <iprt/errcore.h>
#include <iprt/message.h>
#include <iprt/string.h>
/**
* Converts an stringified Ethernet MAC address into the RTMAC representation.
*
* @returns VINF_SUCCESS on success.
*
* @param pszValue The value to convert.
* @param pAddr Where to store the result.
*/
RTDECL(int) RTNetStrToMacAddr(const char *pszValue, PRTMAC pAddr)
{
/*
* First check if it might be a 12 xdigit string without any separators.
*/
size_t cchValue = strlen(pszValue);
if (cchValue >= 12 && memchr(pszValue, ':', 12) == NULL)
{
bool fOkay = true;
for (size_t off = 0; off < 12 && fOkay; off++)
fOkay = RT_C_IS_XDIGIT(pszValue[off]);
if (fOkay && cchValue > 12)
for (size_t off = 12; off < cchValue && fOkay; off++)
fOkay = RT_C_IS_SPACE(pszValue[off]);
if (fOkay)
{
int rc = RTStrConvertHexBytes(pszValue, pAddr, sizeof(*pAddr), 0);
if (RT_SUCCESS(rc))
rc = VINF_SUCCESS;
return rc;
}
}
/*
* Not quite sure if I should accept stuff like "08::27:::1" here...
* The code is accepting "::" patterns now, except for for the first
* and last parts.
*/
/* first */
char *pszNext;
int rc = RTStrToUInt8Ex(RTStrStripL(pszValue), &pszNext, 16, &pAddr->au8[0]);
if (rc != VINF_SUCCESS && rc != VWRN_TRAILING_CHARS)
return VERR_INVALID_PARAMETER;
if (*pszNext++ != ':')
return VERR_INVALID_PARAMETER;
/* middle */
for (unsigned i = 1; i < 5; i++)
{
if (*pszNext == ':')
pAddr->au8[i] = 0;
else
{
rc = RTStrToUInt8Ex(pszNext, &pszNext, 16, &pAddr->au8[i]);
if (rc != VINF_SUCCESS && rc != VWRN_TRAILING_CHARS)
return rc;
if (*pszNext != ':')
return VERR_INVALID_PARAMETER;
}
pszNext++;
}
/* last */
rc = RTStrToUInt8Ex(pszNext, &pszNext, 16, &pAddr->au8[5]);
if (rc != VINF_SUCCESS && rc != VWRN_TRAILING_SPACES)
return rc;
pszNext = RTStrStripL(pszNext);
if (*pszNext)
return VERR_INVALID_PARAMETER;
return VINF_SUCCESS;
}
RT_EXPORT_SYMBOL(RTNetStrToMacAddr);
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