VirtualBox

source: vbox/trunk/src/VBox/Runtime/common/string/RTUtf16PrintHexBytes.cpp

Last change on this file was 106061, checked in by vboxsync, 7 weeks ago

Copyright year updates by scm.

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1/* $Id: RTUtf16PrintHexBytes.cpp 106061 2024-09-16 14:03:52Z vboxsync $ */
2/** @file
3 * IPRT - RTUtf16PrintHexBytes.
4 */
5
6/*
7 * Copyright (C) 2009-2024 Oracle and/or its affiliates.
8 *
9 * This file is part of VirtualBox base platform packages, as
10 * available from https://www.virtualbox.org.
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation, in version 3 of the
15 * License.
16 *
17 * This program is distributed in the hope that it will be useful, but
18 * WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 * General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, see <https://www.gnu.org/licenses>.
24 *
25 * The contents of this file may alternatively be used under the terms
26 * of the Common Development and Distribution License Version 1.0
27 * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
28 * in the VirtualBox distribution, in which case the provisions of the
29 * CDDL are applicable instead of those of the GPL.
30 *
31 * You may elect to license modified versions of this file under the
32 * terms and conditions of either the GPL or the CDDL or both.
33 *
34 * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
35 */
36
37
38/*********************************************************************************************************************************
39* Header Files *
40*********************************************************************************************************************************/
41#include <iprt/utf16.h>
42#include "internal/iprt.h"
43
44#include <iprt/assert.h>
45#include <iprt/errcore.h>
46
47
48RTDECL(int) RTUtf16PrintHexBytes(PRTUTF16 pwszBuf, size_t cwcBuf, void const *pv, size_t cb, uint32_t fFlags)
49{
50 AssertReturn(!(fFlags & ~RTSTRPRINTHEXBYTES_F_UPPER), VERR_INVALID_PARAMETER);
51 AssertPtrReturn(pwszBuf, VERR_INVALID_POINTER);
52 AssertReturn(cb * 2 >= cb, VERR_BUFFER_OVERFLOW);
53 AssertReturn(cwcBuf >= cb * 2 + 1, VERR_BUFFER_OVERFLOW);
54 if (cb)
55 AssertPtrReturn(pv, VERR_INVALID_POINTER);
56
57 static char const s_szHexDigitsLower[17] = "0123456789abcdef";
58 static char const s_szHexDigitsUpper[17] = "0123456789ABCDEF";
59 const char *pszHexDigits = !(fFlags & RTSTRPRINTHEXBYTES_F_UPPER) ? s_szHexDigitsLower : s_szHexDigitsUpper;
60
61 uint8_t const *pb = (uint8_t const *)pv;
62 while (cb-- > 0)
63 {
64 uint8_t b = *pb++;
65 *pwszBuf++ = pszHexDigits[b >> 4];
66 *pwszBuf++ = pszHexDigits[b & 0xf];
67 }
68 *pwszBuf = '\0';
69 return VINF_SUCCESS;
70}
71
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