/* $Id: RTStrCopyP.cpp 109033 2016-07-22 18:27:37Z bird $ */
/** @file
 * IPRT - RTStrCopyP.
 */

/*
 * Copyright (C) 2010-2016 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"

RTDECL(int) RTStrCopyP(char **ppszDst, size_t * pcbDst, const char *pszSrc)
{
	size_t const cchSrc = strlen(pszSrc);
	size_t const cbDst = *pcbDst;
	char *pszDst = *ppszDst;
	if (RT_LIKELY(cchSrc < cbDst)) {
		memcpy(pszDst, pszSrc, cchSrc + 1);
		*ppszDst = pszDst += cchSrc;
		*pcbDst -= cchSrc;
		return VINF_SUCCESS;
	}

	if (cbDst != 0) {
		memcpy(*ppszDst, pszSrc, cbDst - 1);
		*ppszDst = pszDst += cbDst - 1;
		*pszDst = '\0';
		*pcbDst = 1;
	}
	return VERR_BUFFER_OVERFLOW;
}

RT_EXPORT_SYMBOL(RTStrCopyP);
