diff options
Diffstat (limited to 'src/VBox/Runtime/common/string/RTUtf16PrintHexBytes.cpp')
-rw-r--r-- | src/VBox/Runtime/common/string/RTUtf16PrintHexBytes.cpp | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/src/VBox/Runtime/common/string/RTUtf16PrintHexBytes.cpp b/src/VBox/Runtime/common/string/RTUtf16PrintHexBytes.cpp new file mode 100644 index 00000000..361a2822 --- /dev/null +++ b/src/VBox/Runtime/common/string/RTUtf16PrintHexBytes.cpp @@ -0,0 +1,61 @@ +/* $Id: RTUtf16PrintHexBytes.cpp $ */ +/** @file + * IPRT - RTUtf16PrintHexBytes. + */ + +/* + * Copyright (C) 2009-2020 Oracle Corporation + * + * This file is part of VirtualBox Open Source Edition (OSE), as + * available from http://www.virtualbox.org. This file is free software; + * you can redistribute it and/or modify it under the terms of the GNU + * General Public License (GPL) as published by the Free Software + * Foundation, in version 2 as it comes in the "COPYING" file of the + * VirtualBox OSE distribution. VirtualBox OSE is distributed in the + * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL) only, as it comes in the "COPYING.CDDL" file of the + * VirtualBox OSE 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. + */ + + +/********************************************************************************************************************************* +* 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; +} + |