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/* $Id: rtPathVolumeSpecLen.cpp $ */
/** @file
* IPRT - rtPathVolumeSpecLen
*/
/*
* Copyright (C) 2006-2023 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 "internal/iprt.h"
#include <iprt/string.h>
#include <iprt/ctype.h>
#include "internal/path.h"
/**
* Returns the length of the volume name specifier of the given path.
* If no such specifier zero is returned.
*/
DECLHIDDEN(size_t) rtPathVolumeSpecLen(const char *pszPath)
{
#if defined (RT_OS_OS2) || defined (RT_OS_WINDOWS)
if (pszPath && *pszPath)
{
/* UNC path. */
/** @todo r=bird: it's UNC and we have to check that the next char isn't a
* slash, then skip both the server and the share name. */
if ( (pszPath[0] == '\\' || pszPath[0] == '/')
&& (pszPath[1] == '\\' || pszPath[1] == '/'))
return strcspn(pszPath + 2, "\\/") + 2;
/* Drive letter. */
if ( pszPath[1] == ':'
&& RT_C_IS_ALPHA(pszPath[0]))
return 2;
}
return 0;
#else
/* This isn't quite right when looking at the above stuff, but it works assuming that '//' does not mean UNC. */
/// @todo (dmik) well, it's better to consider there's no volume name
// at all on *nix systems
NOREF(pszPath);
return 0;
// return pszPath && pszPath[0] == '/';
#endif
}
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