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/* $Id: RTStrCatEx.cpp $ */
/** @file
* IPRT - RTStrCatEx
*/
/*
* Copyright (C) 2010-2020 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
* VirtualBox OSE 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.
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#include <iprt/string.h>
#include "internal/iprt.h"
#include <iprt/errcore.h>
RTDECL(int) RTStrCatEx(char *pszDst, size_t cbDst, const char *pszSrc, size_t cchMaxSrc)
{
char *pszDst2 = RTStrEnd(pszDst, cbDst);
AssertReturn(pszDst2, VERR_INVALID_PARAMETER);
cbDst -= pszDst2 - pszDst;
const char *pszSrcEol = RTStrEnd(pszSrc, cchMaxSrc);
size_t cchSrc = pszSrcEol ? (size_t)(pszSrcEol - pszSrc) : cchMaxSrc;
if (RT_LIKELY(cchSrc < cbDst))
{
memcpy(pszDst2, pszSrc, cchSrc);
pszDst2[cchSrc] = '\0';
return VINF_SUCCESS;
}
if (cbDst != 0)
{
memcpy(pszDst2, pszSrc, cbDst - 1);
pszDst2[cbDst - 1] = '\0';
}
return VERR_BUFFER_OVERFLOW;
}
RT_EXPORT_SYMBOL(RTStrCatEx);
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