1 files changed, 123 insertions, 0 deletions
diff --git a/src/VBox/Runtime/common/net/macstr.cpp b/src/VBox/Runtime/common/net/macstr.cpp
new file mode 100644
index 00000000..a5eab282
--- /dev/null
+++ b/src/VBox/Runtime/common/net/macstr.cpp
@@ -0,0 +1,123 @@
+/* $Id: macstr.cpp $ */
+/** @file
+ * IPRT - Command Line Parsing
+ */
+
+/*
+ * Copyright (C) 2013-2023 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/cidr.h>
+#include <iprt/net.h>                   /* must come before getopt.h */
+#include "internal/iprt.h"
+
+#include <iprt/assert.h>
+#include <iprt/ctype.h>
+#include <iprt/errcore.h>
+#include <iprt/message.h>
+#include <iprt/string.h>
+
+
+/**
+ * Converts an stringified Ethernet MAC address into the RTMAC representation.
+ *
+ * @returns VINF_SUCCESS on success.
+ *
+ * @param   pszValue        The value to convert.
+ * @param   pAddr           Where to store the result.
+ */
+RTDECL(int) RTNetStrToMacAddr(const char *pszValue, PRTMAC pAddr)
+{
+    /*
+     * First check if it might be a 12 xdigit string without any separators.
+     */
+    size_t cchValue = strlen(pszValue);
+    if (cchValue >= 12 && memchr(pszValue, ':', 12) == NULL)
+    {
+        bool fOkay = true;
+        for (size_t off = 0; off < 12 && fOkay; off++)
+            fOkay = RT_C_IS_XDIGIT(pszValue[off]);
+        if (fOkay && cchValue > 12)
+            for (size_t off = 12; off < cchValue && fOkay; off++)
+                fOkay = RT_C_IS_SPACE(pszValue[off]);
+        if (fOkay)
+        {
+            int rc = RTStrConvertHexBytes(pszValue, pAddr, sizeof(*pAddr), 0);
+            if (RT_SUCCESS(rc))
+                rc = VINF_SUCCESS;
+            return rc;
+        }
+    }
+
+    /*
+     * Not quite sure if I should accept stuff like "08::27:::1" here...
+     * The code is accepting "::" patterns now, except for for the first
+     * and last parts.
+     */
+
+    /* first */
+    char *pszNext;
+    int rc = RTStrToUInt8Ex(RTStrStripL(pszValue), &pszNext, 16, &pAddr->au8[0]);
+    if (rc != VINF_SUCCESS && rc != VWRN_TRAILING_CHARS)
+        return VERR_INVALID_PARAMETER;
+    if (*pszNext++ != ':')
+        return VERR_INVALID_PARAMETER;
+
+    /* middle */
+    for (unsigned i = 1; i < 5; i++)
+    {
+        if (*pszNext == ':')
+            pAddr->au8[i] = 0;
+        else
+        {
+            rc = RTStrToUInt8Ex(pszNext, &pszNext, 16, &pAddr->au8[i]);
+            if (rc != VINF_SUCCESS && rc != VWRN_TRAILING_CHARS)
+                return rc;
+            if (*pszNext != ':')
+                return VERR_INVALID_PARAMETER;
+        }
+        pszNext++;
+    }
+
+    /* last */
+    rc = RTStrToUInt8Ex(pszNext, &pszNext, 16, &pAddr->au8[5]);
+    if (rc != VINF_SUCCESS && rc != VWRN_TRAILING_SPACES)
+        return rc;
+    pszNext = RTStrStripL(pszNext);
+    if (*pszNext)
+        return VERR_INVALID_PARAMETER;
+
+    return VINF_SUCCESS;
+}
+RT_EXPORT_SYMBOL(RTNetStrToMacAddr);