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/* $Id: fileio-at-generic.cpp $ */
/** @file
* IPRT - File I/O, RTFileReadAt and RTFileWriteAt, generic.
*/
/*
* Copyright (C) 2006-2020 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 "internal/iprt.h"
#include <iprt/file.h>
#include <iprt/errcore.h>
RTDECL(int) RTFileReadAt(RTFILE File, RTFOFF off, void *pvBuf, size_t cbToRead, size_t *pcbRead)
{
int rc = RTFileSeek(File, off, RTFILE_SEEK_BEGIN, NULL);
if (RT_SUCCESS(rc))
rc = RTFileRead(File, pvBuf, cbToRead, pcbRead);
return rc;
}
RTDECL(int) RTFileWriteAt(RTFILE File, RTFOFF off, const void *pvBuf, size_t cbToWrite, size_t *pcbWritten)
{
int rc = RTFileSeek(File, off, RTFILE_SEEK_BEGIN, NULL);
if (RT_SUCCESS(rc))
rc = RTFileWrite(File, pvBuf, cbToWrite, pcbWritten);
return rc;
}
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