| 1 | /* $Id: RTStrPrintHexBytes.cpp 60028 2016-03-15 10:39:16Z vboxsync $ */
|
|---|
| 2 | /** @file
|
|---|
| 3 | * IPRT - RTStrPrintHexBytes.
|
|---|
| 4 | */
|
|---|
| 5 |
|
|---|
| 6 | /*
|
|---|
| 7 | * Copyright (C) 2009-2016 Oracle Corporation
|
|---|
| 8 | *
|
|---|
| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
|
|---|
| 10 | * available from http://www.virtualbox.org. This file is free software;
|
|---|
| 11 | * you can redistribute it and/or modify it under the terms of the GNU
|
|---|
| 12 | * General Public License (GPL) as published by the Free Software
|
|---|
| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
|
|---|
| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
|
|---|
| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
|
|---|
| 16 | *
|
|---|
| 17 | * The contents of this file may alternatively be used under the terms
|
|---|
| 18 | * of the Common Development and Distribution License Version 1.0
|
|---|
| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
|
|---|
| 20 | * VirtualBox OSE distribution, in which case the provisions of the
|
|---|
| 21 | * CDDL are applicable instead of those of the GPL.
|
|---|
| 22 | *
|
|---|
| 23 | * You may elect to license modified versions of this file under the
|
|---|
| 24 | * terms and conditions of either the GPL or the CDDL or both.
|
|---|
| 25 | */
|
|---|
| 26 |
|
|---|
| 27 |
|
|---|
| 28 | /*********************************************************************************************************************************
|
|---|
| 29 | * Header Files *
|
|---|
| 30 | *********************************************************************************************************************************/
|
|---|
| 31 | #include "internal/iprt.h"
|
|---|
| 32 | #include <iprt/string.h>
|
|---|
| 33 |
|
|---|
| 34 | #include <iprt/assert.h>
|
|---|
| 35 | #include <iprt/err.h>
|
|---|
| 36 |
|
|---|
| 37 |
|
|---|
| 38 | RTDECL(int) RTStrPrintHexBytes(char *pszBuf, size_t cbBuf, void const *pv, size_t cb, uint32_t fFlags)
|
|---|
| 39 | {
|
|---|
| 40 | AssertReturn( !(fFlags & ~(RTSTRPRINTHEXBYTES_F_UPPER | RTSTRPRINTHEXBYTES_F_SEP_SPACE | RTSTRPRINTHEXBYTES_F_SEP_COLON))
|
|---|
| 41 | && (fFlags & (RTSTRPRINTHEXBYTES_F_SEP_SPACE | RTSTRPRINTHEXBYTES_F_SEP_COLON))
|
|---|
| 42 | != (RTSTRPRINTHEXBYTES_F_SEP_SPACE | RTSTRPRINTHEXBYTES_F_SEP_COLON),
|
|---|
| 43 | VERR_INVALID_FLAGS);
|
|---|
| 44 | AssertPtrReturn(pszBuf, VERR_INVALID_POINTER);
|
|---|
| 45 | AssertReturn(cb * 2 >= cb, VERR_BUFFER_OVERFLOW);
|
|---|
| 46 | char const chSep = fFlags & RTSTRPRINTHEXBYTES_F_SEP_SPACE ? ' '
|
|---|
| 47 | : fFlags & RTSTRPRINTHEXBYTES_F_SEP_COLON ? ':' : '\0';
|
|---|
| 48 | AssertReturn(cbBuf >= cb * (2 + (chSep != '\0')) - (chSep != '\0') + 1, VERR_BUFFER_OVERFLOW);
|
|---|
| 49 | if (cb)
|
|---|
| 50 | AssertPtrReturn(pv, VERR_INVALID_POINTER);
|
|---|
| 51 |
|
|---|
| 52 | static char const s_szHexDigitsLower[17] = "0123456789abcdef";
|
|---|
| 53 | static char const s_szHexDigitsUpper[17] = "0123456789ABCDEF";
|
|---|
| 54 | const char *pszHexDigits = !(fFlags & RTSTRPRINTHEXBYTES_F_UPPER) ? s_szHexDigitsLower : s_szHexDigitsUpper;
|
|---|
| 55 |
|
|---|
| 56 | uint8_t const *pb = (uint8_t const *)pv;
|
|---|
| 57 |
|
|---|
| 58 | if (!chSep)
|
|---|
| 59 | {
|
|---|
| 60 | while (cb-- > 0)
|
|---|
| 61 | {
|
|---|
| 62 | uint8_t b = *pb++;
|
|---|
| 63 | *pszBuf++ = pszHexDigits[b >> 4];
|
|---|
| 64 | *pszBuf++ = pszHexDigits[b & 0xf];
|
|---|
| 65 | }
|
|---|
| 66 | }
|
|---|
| 67 | else if (cb-- > 0)
|
|---|
| 68 | {
|
|---|
| 69 | uint8_t b = *pb++;
|
|---|
| 70 | *pszBuf++ = pszHexDigits[b >> 4];
|
|---|
| 71 | *pszBuf++ = pszHexDigits[b & 0xf];
|
|---|
| 72 |
|
|---|
| 73 | while (cb-- > 0)
|
|---|
| 74 | {
|
|---|
| 75 | b = *pb++;
|
|---|
| 76 | *pszBuf++ = chSep;
|
|---|
| 77 | *pszBuf++ = pszHexDigits[b >> 4];
|
|---|
| 78 | *pszBuf++ = pszHexDigits[b & 0xf];
|
|---|
| 79 | }
|
|---|
| 80 | }
|
|---|
| 81 |
|
|---|
| 82 | *pszBuf = '\0';
|
|---|
| 83 | return VINF_SUCCESS;
|
|---|
| 84 | }
|
|---|
| 85 |
|
|---|
