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/* $Id: RTUtf16PrintHexBytes.cpp $ */
/** @file
* IPRT - RTUtf16PrintHexBytes.
*/
/*
* Copyright (C) 2009-2023 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>.
*
* 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/utf16.h>
#include "internal/iprt.h"
#include <iprt/assert.h>
#include <iprt/errcore.h>
RTDECL(int) RTUtf16PrintHexBytes(PRTUTF16 pwszBuf, size_t cwcBuf, void const *pv, size_t cb, uint32_t fFlags)
{
AssertReturn(!(fFlags & ~RTSTRPRINTHEXBYTES_F_UPPER), VERR_INVALID_PARAMETER);
AssertPtrReturn(pwszBuf, VERR_INVALID_POINTER);
AssertReturn(cb * 2 >= cb, VERR_BUFFER_OVERFLOW);
AssertReturn(cwcBuf >= cb * 2 + 1, VERR_BUFFER_OVERFLOW);
if (cb)
AssertPtrReturn(pv, VERR_INVALID_POINTER);
static char const s_szHexDigitsLower[17] = "0123456789abcdef";
static char const s_szHexDigitsUpper[17] = "0123456789ABCDEF";
const char *pszHexDigits = !(fFlags & RTSTRPRINTHEXBYTES_F_UPPER) ? s_szHexDigitsLower : s_szHexDigitsUpper;
uint8_t const *pb = (uint8_t const *)pv;
while (cb-- > 0)
{
uint8_t b = *pb++;
*pwszBuf++ = pszHexDigits[b >> 4];
*pwszBuf++ = pszHexDigits[b & 0xf];
}
*pwszBuf = '\0';
return VINF_SUCCESS;
}
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