VirtualBox

source: vbox/trunk/src/VBox/Runtime/common/net/macstr.cpp@ 87203

Last change on this file since 87203 was 82968, checked in by vboxsync, 5 years ago

Copyright year updates by scm.

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 3.8 KB
Line 
1/* $Id: macstr.cpp 82968 2020-02-04 10:35:17Z vboxsync $ */
2/** @file
3 * IPRT - Command Line Parsing
4 */
5
6/*
7 * Copyright (C) 2013-2020 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 <iprt/cidr.h>
32#include <iprt/net.h> /* must come before getopt.h */
33#include "internal/iprt.h"
34
35#include <iprt/assert.h>
36#include <iprt/ctype.h>
37#include <iprt/errcore.h>
38#include <iprt/message.h>
39#include <iprt/string.h>
40
41
42/**
43 * Converts an stringified Ethernet MAC address into the RTMAC representation.
44 *
45 * @returns VINF_SUCCESS on success.
46 *
47 * @param pszValue The value to convert.
48 * @param pAddr Where to store the result.
49 */
50RTDECL(int) RTNetStrToMacAddr(const char *pszValue, PRTMAC pAddr)
51{
52 /*
53 * First check if it might be a 12 xdigit string without any separators.
54 */
55 size_t cchValue = strlen(pszValue);
56 if (cchValue >= 12 && memchr(pszValue, ':', 12) == NULL)
57 {
58 bool fOkay = true;
59 for (size_t off = 0; off < 12 && fOkay; off++)
60 fOkay = RT_C_IS_XDIGIT(pszValue[off]);
61 if (fOkay && cchValue > 12)
62 for (size_t off = 12; off < cchValue && fOkay; off++)
63 fOkay = RT_C_IS_SPACE(pszValue[off]);
64 if (fOkay)
65 {
66 int rc = RTStrConvertHexBytes(pszValue, pAddr, sizeof(*pAddr), 0);
67 if (RT_SUCCESS(rc))
68 rc = VINF_SUCCESS;
69 return rc;
70 }
71 }
72
73 /*
74 * Not quite sure if I should accept stuff like "08::27:::1" here...
75 * The code is accepting "::" patterns now, except for for the first
76 * and last parts.
77 */
78
79 /* first */
80 char *pszNext;
81 int rc = RTStrToUInt8Ex(RTStrStripL(pszValue), &pszNext, 16, &pAddr->au8[0]);
82 if (rc != VINF_SUCCESS && rc != VWRN_TRAILING_CHARS)
83 return VERR_INVALID_PARAMETER;
84 if (*pszNext++ != ':')
85 return VERR_INVALID_PARAMETER;
86
87 /* middle */
88 for (unsigned i = 1; i < 5; i++)
89 {
90 if (*pszNext == ':')
91 pAddr->au8[i] = 0;
92 else
93 {
94 rc = RTStrToUInt8Ex(pszNext, &pszNext, 16, &pAddr->au8[i]);
95 if (rc != VINF_SUCCESS && rc != VWRN_TRAILING_CHARS)
96 return rc;
97 if (*pszNext != ':')
98 return VERR_INVALID_PARAMETER;
99 }
100 pszNext++;
101 }
102
103 /* last */
104 rc = RTStrToUInt8Ex(pszNext, &pszNext, 16, &pAddr->au8[5]);
105 if (rc != VINF_SUCCESS && rc != VWRN_TRAILING_SPACES)
106 return rc;
107 pszNext = RTStrStripL(pszNext);
108 if (*pszNext)
109 return VERR_INVALID_PARAMETER;
110
111 return VINF_SUCCESS;
112}
113RT_EXPORT_SYMBOL(RTNetStrToMacAddr);
Note: See TracBrowser for help on using the repository browser.

© 2024 Oracle Support Privacy / Do Not Sell My Info Terms of Use Trademark Policy Automated Access Etiquette