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/* $Id: RTUtf16CopyAscii.cpp $ */
/** @file
* IPRT - RTUtf16CopyAscii.
*/
/*
* Copyright (C) 2010-2023 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/utf16.h>
#include "internal/iprt.h"
#include <iprt/errcore.h>
RTDECL(int) RTUtf16CopyAscii(PRTUTF16 pwszDst, size_t cwcDst, const char *pszSrc)
{
int rc;
size_t cchSrc = strlen(pszSrc);
size_t cchCopy;
if (RT_LIKELY(cchSrc < cwcDst))
{
rc = VINF_SUCCESS;
cchCopy = cchSrc;
}
else if (cwcDst != 0)
{
rc = VERR_BUFFER_OVERFLOW;
cchCopy = cwcDst - 1;
}
else
return VERR_BUFFER_OVERFLOW;
pwszDst[cchCopy] = '\0';
while (cchCopy-- > 0)
{
unsigned char ch = pszSrc[cchCopy];
if (RT_LIKELY(ch < 0x80))
pwszDst[cchCopy] = ch;
else
{
AssertMsgFailed(("ch=%#x\n", ch));
pwszDst[cchCopy] = 0x7f;
if (rc == VINF_SUCCESS)
rc = VERR_OUT_OF_RANGE;
}
}
return rc;
}
RT_EXPORT_SYMBOL(RTUtf16CopyAscii);
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